GE Hydran 201 i Instruction Manual
  1. Manuals
  2. Brands
  3. GE Manuals
  4. Microphone
  5. Hydran 201i
  6. Instruction manual

GE Hydran 201 i Instruction Manual

Hide thumbs Also See for Hydran 201 i:
Table of Contents

Advertisement

Quick Links

Download this manual
GE Energy Services
Digital Energy
Hydran*
Instruction Manual
201i System

Advertisement

Table of Contents
loading

Related Manuals for GE Hydran 201 i

Summary of Contents for GE Hydran 201 i

  • Page 1 GE Energy Services Digital Energy Hydran* 201i System Instruction Manual...

  • Page 2: Notice Of Copyright And Proprietary Rights

    For information on other General Electric Canada products, please contact the Customer Service: GE Energy Services Digital Energy 179 Brunswick Blvd., Pointe-Claire QC H9R 5N2, Canada Tel.: +1 514 694 3637, Fax: +1 514 694 9245 transformermonitoring@ge.com...

  • Page 3: Safety Warnings In Six Languages

    Hydran 201i System SAFETY WARNINGS IN SIX LANGUAGES [EN] (in English) WARNINGS: • All procedures in this manual must be strictly adhered to. • Any deviation from these could cause irreversible damages to the transformer being monitored and/or the Hydran 201i, and could lead to property damage, personal injury and/or death.
  • Page 4 Instruction Manual [DE] (in German) WARNUNG: • Alle Abläufe in diesem Handbuch müssen strengstens befolgt werden. • Jede Abweichung davon könnte dem zu überwachenden Transformator und/oder dem Hydran 201i unwiderrufliche Schäden zufügen, und könnte zu Sachschaden, Personenverletzung und/oder Tod führen. •...

  • Page 5: Preface

    Hydran 201i System PREFACE This manual is a complete reference for the Hydran 201i System, which is a unique, continuous, on-line monitor of combustible gases in dielectric oils. The information in this manual may be used by: • Purchaser or specifier •...
  • Page 6 Instruction Manual PAGE LEFT INTENTIONALLY BLANK Rev. 6, March 2011 Part 17997...

  • Page 7: Dates Of Revisions

    Hydran 201i System DATES OF REVISIONS All pages in this manual are labeled “Rev. 6, March 2011” since they all have been modified during this general revision. Issue dates of this manual are: Original (Rev. 1) . . . December 2007 Revision 2 .
  • Page 8 Instruction Manual PAGE LEFT INTENTIONALLY BLANK viii Rev. 6, March 2011 Part 17997...

  • Page 9: Standard General Electric Canada Warranty

    Hydran 201i System STANDARD GENERAL ELECTRIC CANADA WARRANTY The products covered by this manual and manufactured by General Electric Canada (“Products”) are warranted to be free from defects in material, workmanship and title at the time of delivery. Any components of a Product or other products manufactured by persons other than General Electric Canada carry only the warranty provided by the manufacturers thereof and General Electric Canada gives no warranty on behalf of the manufacturers of such products.
  • Page 10 Instruction Manual General Electric Canada does not warrant Products or any repaired or replacement parts against normal wear and tear, including that due to environment or operation, including excessive operation at peak capability, frequent starting, type of fuel, detrimental air inlet conditions, or erosion, corrosion or material deposits from fluids, or which have been involved in an accident.

  • Page 11: Table Of Contents

    Hydran 201i System TABLE OF CONTENTS Notice of Copyright and Proprietary Rights....ii Trademark Notices ......ii Safety Warnings in Six Languages .
  • Page 12 Instruction Manual 2.5 Analog Inputs and Output ..... 2-13 2.5.1 Analog Inputs ..... . . 2-13 2.5.2 Analog Output .
  • Page 13 Hydran 201i System 4.5 Main and Extended Menus ..... 4-10 4.5.1 History Submenu ..... . 4-12 4.5.1.1 Events History .
  • Page 14 Instruction Manual 5.2 Installation Overview......5-7 5.2.1 Tools and Material Required ....5-9 5.2.2 Mounting Location of the Hydran 201Ti .
  • Page 15 Hydran 201i System 6.3.2.3 Removing the Hydran 201 Sensor ... 6-20 6.3.2.4 Conclusion ....6-20 6.3.3 Preparing the Valve .
  • Page 16 Instruction Manual 7.2 Verification of Operation Prior to Installation ....7-2 7.2.1 Preparation ......7-2 7.2.2 Initial Observations .
  • Page 17 Hydran 201i System 8.3.6 Installing the Alarms Cable (Facultative) ... . 8-13 8.3.7 Installing the ac Power Supply Cable ....8-14 8.3.8 Verifying the Operation .
  • Page 18 Instruction Manual 10.2.3.2 Latch Mode ....10-6 10.2.3.3 Force OFF ..... 10-7 10.2.3.4 Force ON .
  • Page 19 Hydran 201i System Chapter 12 Troubleshooting 12.1 Alarm Messages on the Hydran 201Ti’s Display... . . 12-1 12.1.1 Battery L ......12-2 12.1.2 Battery LL .
  • Page 20 Instruction Manual 12.5.4 An Alarm Relay Does Not Reset, Even If the Alarm Condition Has Disappeared ..... . . 12-17 12.5.5 Irregular Gas Readings .
  • Page 21 Hydran 201i System Appendix E Hydran 201Ti’s History File Messages Appendix F Default Values of the Parameters Appendix G Unit Conversions G.1 Converting Current to Voltage ....G-1 G.2 Converting ppm to mA (or Vice Versa) .
  • Page 22 Instruction Manual PAGE LEFT INTENTIONALLY BLANK xxii Rev. 6, March 2011 Part 17997...

  • Page 23: List Of Figures

    Hydran 201i System LIST OF FIGURES Figure 1-1 - Hydran 201Ti Intelligent Transmitter ... . . 1-3 Figure 1-2 - Hydran 201Ci-C Communications Controller ..1-4 Figure 1-3 - Hydran 201Ci-1 One-Channel Controller .
  • Page 24 Instruction Manual Figure 6-2 - Hydran 201Ti Assembly ....6-18 Figure 6-3 - Screws Used to Fasten the CPU Module ... 6-19 Figure 6-4 - Always Cover the Threads of the Adaptor and Sensor With Teflon...
  • Page 25 Hydran 201i System LIST OF TABLES Table 2-1 - Estimated Battery Life According to Time ... . 2-16 Table 4-1 - Messages Displayed in the Main Display Mode ..4-5 Table 4-2 - Self-Test Sequence During the Normal Power-up .
  • Page 26 Instruction Manual Table D-4 - J2 Heater 6-Pin Connector ....D-2 Table D-5 - J1 Sensor 4-Pin Connector and J2 Thermistor 2-Pin Connector ..D-2 Table D-6 - J3 Local Analog Output Connector, J4 Isolated Supervisory Link Connector, and Termination Board .

  • Page 27: Introduction

    Chapter 1 Introduction This Chapter is an introduction to the Hydran 201i System. A description of the various components of the system is also provided. THE HYDRAN 201I SYSTEM The Hydran 201i System is a continuous, on-line, intelligent dissolved gas monitoring system.

  • Page 28: Components Of The Hydran 201I System

    Chapter 1 • Introduction The Hydran 201i System consists of an Intelligent Transmitter, named the Hydran 201Ti, and a family of Controllers, collectively named the Hydran 201Ci Controllers. When the Hydran 201Ti Intelligent Transmitter is combined with the Hydran 201Ci-1 One-Channel Controller, it is called a Hydran 201R Model i Incipient Fault Monitor.

  • Page 29: Hydran 201Ci-C Communications Controller

    Components of the Hydran 201i System Figure 1-1 - Hydran 201Ti Intelligent Transmitter 1.2.2 Hydran 201Ci-C Communications Controller The Hydran 201Ci-C unit (Figure 1-2 on page 1-4) is a communications controller. It can supervise up to four Hydran 201Ti Intelligent Transmitters through the isolated supervisory link, typically a transformer bank (A, B, C and sometimes an auxiliary).

  • Page 30: Hydran 201Ci-1 One-Channel Controller

    Chapter 1 • Introduction Figure 1-2 - Hydran 201Ci-C Communications Controller The H201Ci-C is built into the same heated Type NEMA 4X instrument cabinet as the H201Ci-1 (Section 1.2.3 on page 1-4), but without a display nor alarms; it contains a single electronic digital circuit board that handles communications chores.

  • Page 31: Hydran Host Software

    Components of the Hydran 201i System Figure 1-3 - Hydran 201Ci-1 One-Channel Controller Two terminal block stripes are provided for easy connection of: ac power; alarm contacts (Gas High, Gas High-High and System Fail); configurable isolated analog output; and isolated supervisory link to the Hydran 201Ti Intelligent Transmitter. Connectors are used for communications: RS-232 or USB to a computer or optional modem, and RS-485 to other Hydran 201Ci Controllers.

  • Page 32: Networking And Communication Capabilities

    Chapter 1 • Introduction The Hydran Host software performs five basic tasks: • A continuous, on-line survey of alarm status and basic information from one or several H201Ti’s • Real-time logging of information from one or several H201Ti’s • Continuous or programmed uploading of historical data (history download) from one or several H201Ti network(s) with graphic display •...

  • Page 33: Vocabulary And Abbreviations Used To Describe The Hydran 201I System

    Vocabulary and Abbreviations Used to Describe the Hydran 201i System port. More than one computer can be connected to the network as long as only one is communicating at the same moment. When an optional smart modem is installed in a H201Ci, the network can be accessed though the public telephone system.

  • Page 34: Accessories

    Chapter 1 • Introduction • Hydran 201i System Incipient Fault Monitor: Combination of H201Ti’s and H201Ci’s. Can be abbreviated as follows: – Hydran 201i System • Hydran Host Software: Used for interface between the user and a network of H201Ti’s. Can be abbreviated as follows: –...

  • Page 35: Figure 1-5 - Vibration-Absorbing Rubber Pads

    Accessories H201Ci Controller Vibration- absorbing rubber pads Figure 1-5 - Vibration-Absorbing Rubber Pads Part 17997 Rev. 6, March 2011...
  • Page 36 Chapter 1 • Introduction PAGE LEFT INTENTIONALLY BLANK 1-10 Rev. 6, March 2011 Part 17997...

  • Page 37: Hydran 201Ti Intelligent Transmitter

    Chapter 2 Hydran 201Ti Intelligent Transmitter The Hydran 201Ti is an intelligent, on-line monitoring system that measures the level of combustible gases in dielectric oil for the early detection and monitoring of incipient faults in transformers or any other oil-filled electrical equipment. A picture of the H201Ti can be found in Figure 1-1 on page 1-3.

  • Page 38: Enclosure

    Chapter 2 • Hydran 201Ti Intelligent Transmitter • A DB-9 connector for local RS-232 serial communication with a host computer running the Hydran Host software • Serial communication with a Hydran 201Ci Controller through a supervisory link (communication cable between a H201Ti and a H201Ci) •...

  • Page 39: Figure 2-1 - Hydran 201Ti's Enclosure (Mounted On A Valve)

    External Components ® Hydran 201T Figure 2-1 - Hydran 201Ti’s Enclosure (Mounted on a Valve) Aluminum Cover: It acts as a radiator, thus allowing the enclosure to maintain the temperature of the sensor and electronics between 25 and 50 °C (77 and 122 °F), regardless of the ambient or oil temperature.

  • Page 40: Internal Components

    Chapter 2 • Hydran 201Ti Intelligent Transmitter Breathing Membrane: This Gore* porous membrane is impervious but allows oxygen to penetrate inside the H201Ti. The H201 sensor requires oxygen to detect the dissolved gases in oil. Knob: It maintains the aluminum cover in place. INTERNAL COMPONENTS An internal view of the Hydran 201Ti is presented in Figure 2-2 on page 2-5.

  • Page 41: Heating Plate

    Internal Components Figure 2-2 - Internal View of the Hydran 201Ti A finned high-temperature adaptor (1.5-in NPT only) can also be purchased (Figure B-6 on page B-4) to increase the maximum operating temperature of the H201Ti. 2.4.2 Heating Plate Military-grade heating resistors and a temperature-sensing thermistor are mounted on the heating plate (item 2 in Figure 2-2 on page 2-5).

  • Page 42: Hydran 201 Sensor

    Chapter 2 • Hydran 201Ti Intelligent Transmitter 2.4.3 Hydran 201 Sensor Mishandling of the H201 sensor (such as a perforation or scratch on WARNING CAUTION the membrane or subjecting the sensor to paint or solvent) voids the warranty. The Hydran 201 sensor (see Figure 2-3 on page 2-6) consists of a brass body with the following components: •...

  • Page 43: Cpu Module

    Internal Components Combustible gases dissolved in the oil pass through a selectively-permeable membrane into an electrochemical gas detector (located inside the H201 sensor). Within the detector, the gases combine with oxygen to produce an electrical signal that is then measured by an electronic circuit and converted to ppm.

  • Page 44: Top Side Of The I/O Module

    Chapter 2 • Hydran 201Ti Intelligent Transmitter • Alarm relays • Supervisory link manager 2.4.6.1 Top Side of the I/O Module The top side of the I/O module supports five components: ac Power 3-Terminal Block (in Figure 2-4 on page 2-8): The terminal has a 300-V rating and accepts 22–14 AWG wires (2.5 mm nominal).

  • Page 45: Figure 2-5 - Second View Of The Top Side Of The I/O Module

    Internal Components It is protected against the surges and the electromagnetic interferences. For wiring details, see Table D-6 on page D-3. Note: The Hydran 201R Model i uses a 9-m (30-ft) 6-conductor cable for the supervisory link. Other configurations use either 4- or 6-conductor cables of varying lengths. 10.

  • Page 46: Left Side Of The I/O Module

    Chapter 2 • Hydran 201Ti Intelligent Transmitter 12. Alarm Contacts 9-Terminal Block (in Figure 2-5 on page 2-9): The terminal has a 300-V rating and accepts 22–14 AWG wires (2.5 mm nominal). For wiring details, see Table D-2 on page D-1. 2.4.6.2 Left Side of the I/O Module The left side of the I/O module (Figure 2-6 on page 2-10) supports plug connectors and the...

  • Page 47: Right Side Of The I/O Module

    Internal Components 13. J2 Heater 6-Pin Connector: This connector is factory-wired to the heating resistors of the Hydran 201Ti’s heating plate. For wiring details, see Table D-4 on page D-2. 14. SW1 Voltage Selector: For wiring details, see Table D-3 on page D-2. This selector is used to choose between the following: •...

  • Page 48: Figure 2-7 - Right Side Of The I/O Module

    Chapter 2 • Hydran 201Ti Intelligent Transmitter • It flashes if the internal temperature is close to the set point. • It remains off if the internal temperature exceeds the set point. 23. -5 - Regulated -5 Vdc supply LED: This dim, green LED confirms the presence of the -5 Vdc power supply.

  • Page 49: Analog Inputs And Output

    Analog Inputs and Output 25. OK - System status indicator LED: This green LED confirms that the Hydran 201Ti is operating properly and that the fail alarm relay is energized. It turns off if a fail alarm condition is detected and if the fail alarm relay is de-energized. 26.

  • Page 50: Analog Output

    Chapter 2 • Hydran 201Ti Intelligent Transmitter The sensor signal is in microvolts (µV). It is first divided in two scales; then, these two signals go through the analog/digital converter and finally the two digital values are read by the microprocessor. The two scales are: •...

  • Page 51: Battery

    Battery Temperatures are obtained through thermistors incorporated in the sensor body and the heating plate. The heating plate power is controlled using a time-proportioning regulating method. The proportional algorithm maintains the sensor temperature near the desired set point, by modulating it with the dynamic oil sampling system. The heating plate temperature is limited to 100 °C (212 °F);...

  • Page 52: Table 2-1 - Estimated Battery Life According To Time

    Chapter 2 • Hydran 201Ti Intelligent Transmitter Table 2-1 - Estimated Battery Life According to Time Possible Situations 25 °C (77 °F) 45 °C (113 °F) 60 °C (140 °F) Battery disconnected, shelf << 10 years < 6 years < 2 years life (20 % loss) (1 %/year) (3 %/year)

  • Page 53: Replacing The Battery

    Battery Note: When disconnecting the battery, only the sensor parameters (except the serial number and checksum) and the calibration parameters are preserved. When the battery is connected again, the parameters are automatically set to their hardware default values. Power off the H201Ti. Disconnect the H201Ti’s power supply.
  • Page 54 Chapter 2 • Hydran 201Ti Intelligent Transmitter Install the new battery inside the CPU module’s cover. Solder the wires from the new battery to the same locations on the circuit board: Red (+) to W8 and blue (-) to W9. Note: If preferred, battery wires can be cut and spliced back.

  • Page 55: Internal Clock

    Internal Clock Do not dissemble, crush, puncture or incinerate the battery. Handle a damaged or leaking battery with extreme care. If you touch the electrolyte, wash the exposed skin with soap and water. If the electrolyte contacts your eye, flush the eye with water for 15 minutes. If you have inhaled the electrolyte, move to fresh air, and monitor breathing and circulation.

  • Page 56: Nonvolatile Memory

    Chapter 2 • Hydran 201Ti Intelligent Transmitter NONVOLATILE MEMORY The nonvolatile memory allows the Hydran 201Ti to retain its data even during the following events: • Disconnection of the H201Ti’s battery • Failure of the H201Ti’s power supply • Update of the H201Ti’s embedded software using the Hydran Host software The H201Ti’s nonvolatile memory is used to retain the following data: •...

  • Page 57: Hydran 201Ci Controllers

    RS-232 or USB link ® Hydran 201Ci-C modem H201Ti GE Energy Supervisory link cable Figure 3-1 - Typical Configuration of a Hydran 201i System 3.1.1 Features The Hydran 201Ci-C is meant specifically to interface a network of up to 128 Hydran 201Ti’s to a computer via a single RS-232 or USB link, or an optional modem.

  • Page 58: Description Of The Major Components

    Chapter 3 • Hydran 201Ci Controllers 32 H201Ci-C’s (and/or Hydran 201Ci-1’s) can be networked via an RS-485 Local Area Network (LAN). The H201Ci-C features: • A digital circuit board to control all communications, including networking. • A terminal block to connect the ac power supply. •...

  • Page 59: Figure 1-2 - Hydran 201Ci-C Communications Controller

    Hydran 201Ci-C Communications Controller Figure 3-2 - Internal View of the Hydran 201Ci-C Main Terminal Block: The ac power supply, the supervisory link cables and the RS-485 LAN are connected to this 40-screw terminal block. For wiring details, see Table D-8 on page D-5. ELECTRICAL SHOCK HAZARD.

  • Page 60: Description Of The Circuit Board

    Chapter 3 • Hydran 201Ci Controllers 3.1.3 Description of the Circuit Board The circuit board of the H201Ci-C is presented in Figure 3-3 on page 3-5. RS-232 Computer Port Connector, DB-9 Male (J10): This standard connector is used to interface the H201Ci-C directly to a PC or to a smart modem. For wiring details, see Table D-10 on page D-8.

  • Page 61: Figure 3-3 - Circuit Board Of The Hydran 201Ci-C

    Hydran 201Ci-C Communications Controller Figure 3-3 - Circuit Board of the Hydran 201Ci-C Part 17997 Rev. 6, March 2011...
  • Page 62 Chapter 3 • Hydran 201Ci Controllers 14. Supervisory Link Connector to Termination Board No. 2, 4 Pins (J12): See item 12 on page 3-4. 15. Supervisory Link Supply Indicator, Green (DS12): This LED indicator is lit when the supervisory link power supply is On. 16.

  • Page 63: Additional Information

    Hydran 201Ci-1 One-Channel Controller 3.1.4 Additional Information To obtain more information on the Hydran 201Ci-C, please consult the following parts of this manual: • Before the installation: See Chapter 5. • Installation: See Chapter 7. • Communications and networking: See Chapter 9. •...

  • Page 64: Figure 3-4 - Hydran 201R Model I

    H201C -1 H201 sensor ® Hydran 201Ci-1 H201Ti GE Energy Supervisory link cable Figure 3-4 - Hydran 201R Model i • Network and communication management. The H201Ci-1 (or any other Hydran 201Ci Controller in a local network) is connected to the host computer with an RS-232 or USB link or a modem (optional) and to each H201Ti with a supervisory link.

  • Page 65: Description Of The Major Components

    Hydran 201Ci-1 One-Channel Controller 3.2.2 Description of the Major Components An external view of the H201Ci-1 is presented in Figure 3-5 on page 3-9. Figure 3-5 - External View of the Hydran 201Ci-1 Digital Display: The LED digital read-out displays the content of combustible gas in the oil.

  • Page 66: Description Of The Circuit Board

    Chapter 3 • Hydran 201Ci Controllers Door-Mounted Alarm Indicators and Push-buttons: The two illuminated push- buttons are mounted on the cabinet door of the instrument. Each local indicator latches on when the corresponding gas alarm relay is energized. The indicator remains on when the alarm relay turns off and it must be cleared (or “acknowledged”) by pressing the illuminated indicator.

  • Page 67: Figure 3-6 - Internal View Of The Hydran 201Ci-1

    Hydran 201Ci-1 One-Channel Controller Figure 3-6 - Internal View of the Hydran 201Ci-1 USB Computer Port Connector, Type B (J16): This connector is available to interface the H201Ci-1 directly to a PC or to a smart modem. The RS-232 computer port (J10) can also be used (item 7 in Figure 3-7 on page 3-12).

  • Page 68: Figure 3-7 - Circuit Board Of The Hydran 201Ci-1

    Chapter 3 • Hydran 201Ci Controllers Figure 3-7 - Circuit Board of the Hydran 201Ci-1 3-12 Rev. 6, March 2011 Part 17997...
  • Page 69 Hydran 201Ci-1 One-Channel Controller 10. Optional Modem Connector, 4 Pins (J9): This connector is used to interface the H201Ci-1 with a modem. The telephone line should be connected here. For more detail, refer to the modem procedure located in the English/Procedures folder of the Hydran 201i System installation CD.
  • Page 70 Chapter 3 • Hydran 201Ci Controllers 19. Analog Outputs (J22): This connector is factory-wired to the terminal block between pins 17 and 20. 20. Alarm Contacts Connector, 9 Pins (J18): The Gas High, Gas High-High and System OK alarm relays are factory-wired from this connector to the terminal block between pins 7 and 15.

  • Page 71: Additional Information

    Hydran 201Ci-1 One-Channel Controller 27. Alarm 1 High Latch Indicator, Red-Orange (DS5): This LED indicates that the operator did not acknowledge the alarm 1 (Gas High). It is impossible to acknowledge the alarm if it is still active. 28. Alarm 2 High-High Latch Indicator, Red-Orange (DS4): This LED indicates that the operator did not acknowledge the alarm 2 (Gas High-High).
  • Page 72 Chapter 3 • Hydran 201Ci Controllers PAGE LEFT INTENTIONALLY BLANK 3-16 Rev. 6, March 2011 Part 17997...

  • Page 73: Hydran 201Ti's Displays And Menus

    Chapter 4 Hydran 201Ti’s Displays and Menus Note: It is recommended to use the Hydran Host software rather than the H201Ti’s user interface (keypad and display). See the Hydran Host Software Manual. All parameters and commands that can be accessed with the H201Ti’s user interface can also be accessed with the Hydran Host software, except for the analog inputs/outputs calibration and the communication parameters.

  • Page 74: Figure 4-1 - Hydran 201Ti's User Interface

    Chapter 4 • Hydran 201Ti’s Displays and Menus Figure 4-1 - Hydran 201Ti’s User Interface • Second priority: To execute commands requested through the keypad and to display the parameters from the Main Menu and the Extended Menu. These tasks correspond to the Menu Navigation mode (Section 4.2.3 on page 4-5) and the Parameter Modification mode (Section 4.2.4 on page 4-6).

  • Page 75: User Interface Operating Modes

    User Interface Operating Modes • Third priority: If all active alarms have been acknowledged and if the keypad is not used, to display a list of messages at a rate of one message every five seconds. This task corresponds to the Main Display mode (Section 4.2.2 on page 4-4). USER INTERFACE OPERATING MODES The Hydran 201Ti’s user interface uses five operating modes: •...

  • Page 76: Main Display Mode

    Chapter 4 • Hydran 201Ti’s Displays and Menus The unacknowledged alarm messages are always displayed in priority. When an alarm occurs, the Main Display mode is immediately replaced by the Unacknowledged Alarms mode. If two or more unacknowledged alarms are present, the display scrolls through their messages at the rate of one every five seconds.

  • Page 77: Menu Navigation Mode

    User Interface Operating Modes Table 4-1 - Messages Displayed in the Main Display Mode Display Description Alarm message Displayed only if an alarm occurred, if it was acknowledged and if the (Alarm set point) alarm condition is still present. See Section 4.2.1 on page 4-3. •...

  • Page 78: Parameter Modification Mode

    Chapter 4 • Hydran 201Ti’s Displays and Menus 4.2.4 Parameter Modification Mode The Parameter Modification mode is accessed by pressing the CHANGE key when an adjustable parameter is displayed. In the Main Menu, a password is then requested; in the Extended Menu, a password is requested only for parameters requiring password No.

  • Page 79: Short Power-Up (Power-Off Shorter Than Five Minutes)

    Using the Keypad’s Keys According to Each Mode 4.2.5.2 Short Power-up (Power-off Shorter Than Five Minutes) In this sequence, the self-test is not executed. After the message System;Initialization, the Main Display mode is immediately displayed. 4.2.5.3 First Power-up (After Reconnection of Battery) In this sequence, the H201Ti requests the values listed in Table 4-3 on page 4-7 before executing the self-test sequence.

  • Page 80: Figure 4-2 - Hydran 201Ti's Keypad

    Chapter 4 • Hydran 201Ti’s Displays and Menus Figure 4-2 - Hydran 201Ti’s Keypad Table 4-4 - Functions of the Keypad’s Keys According to the Operating Modes Main Parameter Unacknowledged Menu Navigation Display Modification Alarms Mode Mode Mode Mode Enters Menu Acknowledges Selects a submenu Validates a new...

  • Page 81: Passwords

    Passwords PASSWORDS The H201Ti’s user interface is protected by passwords. Entering a password is necessary to modify parameters or to access specific sections of menus: • Password No. 1 (first level): This password is 1253. It allows the user to modify almost all the H201Ti’s parameters.

  • Page 82: Main And Extended Menus

    Chapter 4 • Hydran 201Ti’s Displays and Menus MAIN AND EXTENDED MENUS The Main Menu gives access to the H201Ti’s most frequently used parameters and commands. The Extended Menu gives access to all parameters and commands (including all parameters and commands from the Main Menu). Note: Even if the H201Ti’s menu system gives access to all its operation parameters, using a host computer and General Electric Canada’s Hydran Host software simplifies the tasks.
  • Page 83 Main and Extended Menus Submenu Functions • To read the current temperature of the Hydran 201 sensor. • To set the parameters of the sensor temperature alarm. • To adjust the set point of the sensor temperature. Temperature • To set periods A and B. •...

  • Page 84: History Submenu

    Chapter 4 • Hydran 201Ti’s Displays and Menus The following Sections describe the parameters and commands of each submenu. 4.5.1 History Submenu The History submenu allows the user to: • Consult the four historic data files: – Events (recording at the time of events; example: alarms) –...

  • Page 85: Short Term History

    Main and Extended Menus • Press ENTER to read a message describing the event that occurred at the selected date and time. • Press ENTER and UP or DOWN to read the value of the variables at the time of this event.

  • Page 86: Long Term History

    Chapter 4 • Hydran 201Ti’s Displays and Menus 4.5.1.3 Long Term History From one to four times per day (adjustable; see Section 4.5.1.5 on page 4-15), the date and time plus ten variables are stored in the historic data file Long Term. Its capacity is 480 recordings;...

  • Page 87: History Setup (Extended Menu Only)

    Main and Extended Menus 4.5.1.5 History Setup (Extended Menu Only) This function gives access to the logging rate parameters of the Short Term and Long Term historic data files. Once set, the new value will only come into service after the current period is over.

  • Page 88: Gas Submenu

    Chapter 4 • Hydran 201Ti’s Displays and Menus 4.5.2 Gas Submenu The Gas submenu allows the user to set the parameters of the conditions that trigger: • The gas alarm: A High or High-High alarm is triggered if an alarm condition (GasLevel, HourlyTrend or DailyTrend) exceeds the corresponding High or High-High alarm set point for a period of time greater than the delay.

  • Page 89: Daily Trend

    Main and Extended Menus 4.5.2.3 Daily Trend This function gives access to the daily trend High and High-High alarm parameters: • DailyTrend: Current reading of daily trend, in ppm/x days. Same value as the one shown in the Main Display mode. •...

  • Page 90: Service Submenu

    Chapter 4 • Hydran 201Ti’s Displays and Menus • SP Span (Extended Menu only): Temperature variation according to Temp SetPoint. For example: the temperature varies between 30 and 40 °C (86 and 104 °F) if Temp SetPoint is set to the recommended temperature of 35 °C (95 °F) and SP Span to 10 °C (18 °F).

  • Page 91: Forcesensor Test

    Main and Extended Menus • CheckSum: Checksum of the above values. This value is added to the list to avoid erroneous values from being entered. This submenu does not allow to modify the displayed values. To change the values, use the NewSensor submenu (Section 4.5.8 on page 4-25).

  • Page 92: Battery

    Chapter 4 • Hydran 201Ti’s Displays and Menus Table 4-6 - Messages That Can Be Displayed Following a Sensor Test Message Signification Good Hydran 201 sensor operating properly Replace SensSoon Decreased sensor sensibility, replace rapidly Replace SensNOW Damaged sensor, replace immediately CableOpen Cable disconnected, broken or misconnected CableShort...

  • Page 93: Date&Time Submenu (Extended Menu Only)

    Main and Extended Menus • ServiceA • ServiceU • ServiceV • ServiceF 4.5.5 Date&Time Submenu (Extended Menu Only) The Date&Time submenu is used to change the date and time of the Hydran 201Ti. The internal clock provides the date and time unless the battery is disconnected. 4.5.6 Communication Submenu (Extended Menu Only) Note: The Hydran 201Ti’s communication parameters can only be modified using the...

  • Page 94: Commmode

    Chapter 4 • Hydran 201Ti’s Displays and Menus Note: The H201Ti’s microprocessor only gives access to one channel at a time. 4.5.6.2 CommMode This function is used to select the communication mode between the Hydran 201Ti and the Hydran Host software. There are two possibilities: •...

  • Page 95: H201Ti Id And Powerstat. Id

    Main and Extended Menus Note: In the versions 2.1 and prior of the H201Ti embedded software, in the Call OnAlarm mode, the telephone number set in the modem’s register 0 is dialed automatically at midnight. This function does not exist in version 2.2. 4.5.6.5 H201Ti ID and PowerStat.

  • Page 96: Gas Hh Relay

    Chapter 4 • Hydran 201Ti’s Displays and Menus • RelayMode: Is used to set the operation mode of the High alarm relay. The four operation modes are explained in Section 10.2.3 on page 10-5. 4.5.7.2 Gas HH Relay • Relay HH State: Displays the status of the High-High alarm relay. The two possible states are explained in Section 10.2.2 on page 10-4.

  • Page 97: Tdm Out

    Main and Extended Menus Table 4-7 - Electrical Current Generated by the Analog Output for Each Operation Mode Operation Mode Analog 4–20 mA Output Hydran 201Ci-1 Display Force 0 % 4.00 ± 0.10 mA 0 ± 2 ppm Force 50 % 12.00 ±...

  • Page 98: Calibration Submenu (Extended Menu Only)

    Chapter 4 • Hydran 201Ti’s Displays and Menus Use this submenu only to install a new H201 sensor, because it WARNING CAUTION changes the Service;ServiceData parameters. These parameters are used to evaluate the state of the H201 sensor. 4.5.9 Calibration Submenu (Extended Menu Only) The Calibration submenu is used to calibrate: •...

  • Page 99: Before Installation

    Chapter 5 Before Installation GENERAL WARNINGS Do not separate the Hydran 201Ti Intelligent Transmitters from their respective Hydran 201 sensor. The H201Ti is set at the factory for a specific H201 sensor. To verify whether the two components are paired correctly, consult the serial numbers indicated on the shipping box and/or the Test Certificate and Data Sheet.

  • Page 100: Figure 5-2 - Do Not Touch The Membrane

    Chapter 5 • Before Installation Do not remove the protective plastic caps from the sensor and/or the brass adaptor’s threaded extremity until ready to install on the transformer valve. These caps protect the adaptor threads (see Figure 5-1 on page 5-1) and the sensor membrane from debris and sharp objects.

  • Page 101: Figure 5-3 - Do Not Paint The Sensor Or Clean It With Any Solvent

    General Warnings Do not paint the sensor (see Figure 5-3 on page 5-3). Paint fumes block the sensor’s breathing membrane and damage the sensor permanently, thus voiding the warranty. SOLVENT Figure 5-3 - Do Not Paint the Sensor or Clean It With Any Solvent Do not use hydrocarbon-based compounds near the sensor.

  • Page 102: Figure 5-4 - Use The Hydran 201Tw Instead Of A Pipe Wrench

    Chapter 5 • Before Installation Do not use a pipe wrench or chain wrench to install the sensor. Doing so may cause serious damage to the sensor, thus voiding the warranty. It is recommended to use General Electric Canada’s Hydran 201TW tube wrench (see Figure 5-4 on page 5-4) to correctly install the Hydran 201 sensor.

  • Page 103: Figure 5-5 - Do Not Install The H201Ti On The Inlet Side Of The Radiator Pump

    General Warnings Do not install the H201Ti on the inlet side of the radiator pump (see Figure 5-5 on page 5-5). Radiator Pump Pump outlet Figure 5-5 - Do Not Install the H201Ti on the Inlet Side of the Radiator Pump Do not use galvanized fittings to install the brass adaptor and the sensor.

  • Page 104: Figure 5-6 - Do Not Install The H201Ti On An Elbow

    Chapter 5 • Before Installation 10. Install the H201Ti horizontally; not at an angle, vertically or horizontally using an elbow (see Figure 5-6 on page 5-6). Elbows may cause turbulence that can reduce the accuracy of gas level readings. For details pertaining to the positioning of H201Ti’s, see Section 5.2.2.2 on page 5-10.

  • Page 105: Installation Overview

    Installation Overview 12. Do not punch additional openings in the H201Ci Controller’s enclosure. This enclosure already has openings for the various cables used with the Hydran 201i System. If additional openings must be made, apply a protective coating to the bare metal around the hole to prevent rust. 13.

  • Page 106: Figure 5-8 - Typical Installation Of The Hydran 201I System

    Chapter 5 • Before Installation Figure 5-8 - Typical Installation of the Hydran 201i System Rev. 6, March 2011 Part 17997...

  • Page 107: Tools And Material Required

    Installation Overview 5.2.1 Tools and Material Required • Flat-blade screwdriver • General Electric Canada’s Hydran 201TW tube wrench to tighten the Hydran 201 sensor • Pipe wrench to tighten the brass adaptor onto the valve • Allen keys supplied with the Hydran 201Ti (see Section 6.1.2 on page 6-2) •...

  • Page 108: Typical Locations

    Chapter 5 • Before Installation The H201Ti weighs 5.6 kg (12 lb). If the selected valve is subject to strong vibrations, install a supporting bracket to reduce the load on the valve. In case of doubt, consult your engineering personnel. 5.2.2.2 Typical Locations For a typical transformer, the four most common locations to install the Hydran 201Ti are...
  • Page 109 Installation Overview negative pressure). This location presents the H201Ti with the best combination of oil flow, temperature and ease of access. Filling valve (top of tank): In terms of performance (excellent convective oil flow), this location is a very good alternative location to install the H201Ti. However, the higher operating temperatures somewhat reduce the Hydran 201 sensor lifetime.

  • Page 110: Mounting Location Of Hydran 201Ci Controllers

    Chapter 5 • Before Installation 5.2.3 Mounting Location of Hydran 201Ci Controllers The following points pertain to all H201Ci Controllers (Hydran 201Ci-C and Hydran 201Ci-1): All H201Ci Controllers are equipped with Type NEMA 4X enclosures and can thus be installed outdoor. The H201Ci Controllers must be mounted on a vibration-free structure.

  • Page 111: Cabling And Network Configuration

    Installation Overview 5.2.4 Cabling and Network Configuration Several Hydran 201Ci Controllers installed in a station can be linked together using an RS-485 link to form a local network. A local network of Hydran 201i Systems can include up to 32 H201Ci Controllers and 128 Hydran 201Ti’s. The H201Ci Controllers (Hydran 201Ci-C’s and/or Hydran 201Ci-1’s) can all be connected together.

  • Page 112: Cabling

    Chapter 5 • Before Installation Table 5-1 - Example of H201Ti Identification Numbers Transformer H201Ti Identification Number Reserved At least one H201Ti in a local network must be set to an identifi- cation number between 1 and 5 (inclusively). The serial number of each component of the Hydran 201i System, the value of the H201Ti’s parameters and a general description of the installation (transformer number, power station number, etc.) should be logged and kept in a safe place.

  • Page 113: Installation

    Installation important because all H201Ci Controllers in a local network share a common reference with this link. ELECTRICAL SHOCK HAZARD. Turn off the electric power at the WARNING CAUTION fuse box or service panel before making any electrical connections, and ensure a proper ground connection is made before connecting line voltage.
  • Page 114 Chapter 5 • Before Installation PAGE LEFT INTENTIONALLY BLANK 5-16 Rev. 6, March 2011 Part 17997...

  • Page 115: Hydran 201Ti Installation

    Chapter 6 Hydran 201Ti Installation Please read the following Sections before proceeding with the installation: • User interface, in Section 4.1 on page 4-1 • General warnings, in Section 5.1 on page 5-1 • Installation overview, in Section 5.2 on page 5-7 Note: It is recommended to use the Hydran Host software rather than the H201Ti’s user interface (keypad and display).

  • Page 116: Shipping List

    Chapter 6 • Hydran 201Ti Installation Note: Keep the packing material for storage or further shipment of the H201Ti. 6.1.2 Shipping List This Section lists all the items included in the shipment of a Hydran 201Ti. If any item is missing, contact the General Electric Canada Customer Service (the coordinates can be found at the bottom of page ii).

  • Page 117: Inspecting

    Incoming Inspection and Verification • One 7/64-in (2.8 mm) Allen key with a short L-shape handle (part number 10011) • One blue protective cap for the H201 sensor • One roll of Teflon tape 6.1.3 Inspecting Verify the Hydran 201Ti completely as outlined below. Using the shipping list (see Section 6.1.2 on page 6-2), ensure all items are present.

  • Page 118: Figure 6-1 - Example Of Test Certificate And Data Sheet For The Hydran 201Ti

    Chapter 6 • Hydran 201Ti Installation Figure 6-1 - Example of Test Certificate and Data Sheet for the Hydran 201Ti Rev. 6, March 2011 Part 17997...

  • Page 119: Storage And Battery Care

    Incoming Inspection and Verification Ensure the serial numbers of the following H201Ti’s components correspond to those indicated on the Test Certificate and Data Sheet (for an example, see Figure 6-1 on page 6-4) and on the shipping box: • Serial number of the H201Ti (located on the back of the heating plate; see item 2 in Figure 2-2 on page 2-5) •...

  • Page 120: Verification Of Operation Prior To Installation

    Chapter 6 • Hydran 201Ti Installation VERIFICATION OF OPERATION PRIOR TO INSTALLATION It is strongly recommended to verify the operation of the Hydran 201Ti’s before instal- lation in the field (for the installation procedure, see Section 6.3 on page 6-17). The verifi- cation confirms that no damage occurred during shipping and allows the user to become familiar with the H201Ti.

  • Page 121: Initial Observations

    Verification of Operation Prior to Installation 6.2.2 Initial Observations If the battery was just reconnected, the H201Ti performs the first power-up sequence (see Section 4.2.5.3 on page 4-7). Enter the requested parameters (date, time, etc.) using the H201Ti’s keypad. Observe the display and ensure the H201Ti goes through the self-test sequence shown in Table 4-2 on page 4-6.

  • Page 122: Adjusting The Date And Time

    Chapter 6 • Hydran 201Ti Installation • H - High alarm state LED: This red LED is lit when a High alarm condition is detected and the High alarm relay is energized. This LED must therefore be off. Wait a few minutes and touch the back of the heating plate (item 2 in Figure 2-2 on page 2-5).

  • Page 123: Verifying The Alarm Relays

    Verification of Operation Prior to Installation Push DOWN four times until Date&Time appears. Access this menu by pushing ENTER. Select Year using the DOWN or UP key. To be able to adjust this value, push CHANGE. When asked to enter the password #1 (1253), use the UP and ENTER keys. 10.

  • Page 124: Gas High-High Alarm

    Chapter 6 • Hydran 201Ti Installation Set this relay’s parameter RelayMode to Force ON. When asked to enter the password #1 (1253), use the UP and ENTER keys. Ensure: • The High alarm state LED H (item 27 in Figure 2-7 on page 2-12) is lit. •...

  • Page 125: Cancelling The Fail Alarm

    Verification of Operation Prior to Installation Ensure: • The System state indicator LED OK (item 25 in Figure 2-7 on page 2-12) is off. • The NO contact of the fail alarm is open. • The NC contact of the fail alarm is closed. •...

  • Page 126: Conclusion

    Chapter 6 • Hydran 201Ti Installation • If connected, the SCADA system has detected the state change of both gas alarm relays. 6.2.4.6 Conclusion If necessary, set the parameter RelayMode of each alarm relay to their initial mode. When all three relays have been tested, push END. To abort an operation if needed, push ESC.

  • Page 127: Adjusting The Temperature Set Point

    Verification of Operation Prior to Installation Compare the serial number displayed with the one located under the sensor’s connector (see item 3 in Figure 2-2 on page 2-5). Push ESC and DOWN to access Force Sensor Test. Push ENTER. The message AreYou Sure?;PressEnter.. is now displayed. Push ENTER again to confirm.

  • Page 128: Verifying The Analog Output (Facultative)

    Chapter 6 • Hydran 201Ti Installation 11. Modify the Temp Setpoint by pushing CHANGE. 12. When asked to enter the password #1 (1253), use the UP and ENTER keys. 13. Decrease the Temp Setpoint to 30 °C (86 °F) using the UP and ENTER keys. 14.

  • Page 129: Verifying The Rs-232 Communication (Facultative)

    Verification of Operation Prior to Installation Modify the Analog Out Mode by pushing CHANGE. When asked to enter the password #1 (1253), use the UP and ENTER keys. 10. Push DOWN three times and ENTER to force the output to 0 %. 11.
  • Page 130 Chapter 6 • Hydran 201Ti Installation Push DOWN five times until Communication appears. Access this menu by pushing ENTER. Modify the Comm Channel by pushing CHANGE. When asked to enter the password #1 (1253), use the UP and ENTER keys. Change the Comm Channel to H201Ti-DB9 using the UP and ENTER keys.

  • Page 131: 6.2.10 Completing The Verification

    Installation 22. When the testing is completed, repeat the steps 2 to 13 above but restore the original communication settings to the following: • Comm Channel = Supervisory Link • Default Channel = Supervisory Link • Gas Monitor ID = Initial value noted in the step 11 above 23.

  • Page 132: Verifying The Ac Power Supply Voltage And The Serial Numbers

    Chapter 6 • Hydran 201Ti Installation Valve Brass adaptor H201 sensor Heating plate Alarm contacts terminal block Input/output (I/O) module Six lockwashers Six 1/4-28 cap screws Supervisory link (and analog output) termination board ac power supply terminal block Sensor cable CPU module Aluminum cover Knob...

  • Page 133: Preparing The Hydran 201Ti

    Installation 6.3.2 Preparing the Hydran 201Ti 6.3.2.1 Removing the CPU Module Unscrew the H201Ti’s aluminum cover knob. Remove the cover. Remove only the two screws used to fasten the CPU module and identified with arrows (see Figure 6-3 on page 6-19). H201Ti V2.2x MainMenu Figure 6-3 - Screws Used to Fasten the CPU Module...

  • Page 134: Separating The Brass Adaptor From The Heating Plate

    Chapter 6 • Hydran 201Ti Installation Carefully pull out the CPU module. When removing the CPU module, make sure not to bend the pins of WARNING CAUTION the connector located between the CPU and I/O modules. 6.3.2.2 Separating the Brass Adaptor From the Heating Plate Disconnect the Hydran 201 sensor’s connector.

  • Page 135: Preparing The Valve

    Installation Electric Canada. Reconnect the battery before installation; procedures to disconnect and reconnect the battery are both given in Section 2.7.2 on page 2-15 6.3.3 Preparing the Valve Wipe the inside of the valve. Clean the valve’s threads. Wipe up any trace of oil and dispose of the collected oil according to company standards.

  • Page 136: Installing The Hydran 201 Sensor

    Chapter 6 • Hydran 201Ti Installation Screw the adaptor onto the valve and tighten it using a pipe wrench. Ensure two of the screw holes of the adaptor (used to fasten the Hydran 201Ti’s heating plate) are level (horizontal); see Figure 6-5 on page 6-22. The H201Ti can be installed either on a horizontal (recommended) WARNING CAUTION...

  • Page 137: Opening The Valve

    Installation Turn the sensor so the bleed screw is at the “12 o’clock” position Figure 6-6 - The Bleed Screw Must Be on Top, at the 12 O’clock Position Ensure the bleed screw is in place. Do not tighten it now. 6.3.6 Opening the Valve This step should be performed according to company regulations.

  • Page 138: Fastening The Hydran 201Ti To The Brass Adaptor

    Chapter 6 • Hydran 201Ti Installation Figure 6-7 - Purging Air From the Hydran 201 Sensor 6.3.7 Fastening the Hydran 201Ti to the Brass Adaptor Using the supplied 3/16-in Allen key, fasten the H201Ti’s heating plate to the brass adaptor with the six 1/4-28 cap screws. See Figure 6-8 on page 6-25. Be careful not to squeeze the nearby electrical wires between the WARNING CAUTION...

  • Page 139: Installing The Cable Conduits

    Installation Six lockwashers Six 1/4-28 cap screws Sensor cable Figure 6-8 - Fastening the Heating Plate to the Brass Adaptor 6.3.8 Installing the Cable Conduits Note the following considerations prior to installing: • All cables connected to the Hydran 201Ti must be run through steel conduits. Otherwise, armored cables can be used.

  • Page 140: Installing The Supervisory Link And Analog Output Cable

    Chapter 6 • Hydran 201Ti Installation • Conduits, or cable armors, should be made of steel to shield against magnetic fields. • Nonconducting conduit fittings (made of plastic, for example) can be used on the connection box if ground loops through the conduits may cause problems (for example, if the transformer tank is grounded at a single point and monitored continuously for tank- to-ground currents).

  • Page 141: Installing The Alarms Cable (Facultative)

    Installation • A supervisory link cable connected to a H201Ci-C requires two twisted pairs and an overall shield. • If, for special considerations, the H201Ti’s analog output is used, select a cable with characteristics similar to the supervisory link cable but with an additional pair of wires. The procedure is as follows: Run the supervisory link cable into the conduit up to the H201Ci Controller, where it will be connected later.

  • Page 142: 6.3.12 Installing The Cpu Module

    Chapter 6 • Hydran 201Ti Installation Connect the cable to the H201Ti’s terminals L1/L, L2/N and E/G. For wiring details, see Table D-1 on page D-1. Connect the other end of the cable to the power source. Note: The earth/ground terminal (E/G) must be connected to the power source ground (green wire) or directly to the transformer tank.

  • Page 143: Figure 6-9 - Installing The Cpu Module

    Installation Figure 6-9 - Installing the CPU Module Part 17997 Rev. 6, March 2011 6-29...

  • Page 144: Configuring The Hydran 201Ti

    Chapter 6 • Hydran 201Ti Installation CONFIGURING THE HYDRAN 201TI The H201Ti can be configured using either its keypad or a host computer running the Hydran Host software. It is recommended to use the Hydran Host software because the configuration task is much easier. For details, see the Hydran Host Software Manual. The H201Ti’s user interface is described thoroughly in Section 4.1 on page 4-1.

  • Page 145: Verifying And Setting Historical Data File Parameters

    Configuring the Hydran 201Ti 6.4.2 Verifying and Setting Historical Data File Parameters For details on the parameters and commands in the submenu History, see Section 4.5.1 on page 4-12. Access the submenu H201Ti V2.2x;History. Access the submenu History;HistorySetup. Verify and set, as required, the Short Term logging rate and the four Long Term logging hours.

  • Page 146: Resetting The Hourly Trend, Daily Trend And Period B

    Chapter 6 • Hydran 201Ti Installation 6.4.4 Resetting the Hourly Trend, Daily Trend and Period B The hourly trend, daily trend and Period B are reset by changing the value of their period and then restoring them to their initial value after five minutes. Proceed as follows: In the submenu H201Ti V2.2x;Gas, access the submenu Gas;HourlyTrend.

  • Page 147: Verifying The Hydran 201 Sensor And Its Parameters

    Configuring the Hydran 201Ti Verify and set, as required, all parameters except Period B. 6.4.6 Verifying the Hydran 201 Sensor and Its Parameters For details on the parameters and commands in the submenu Service, see Section 4.5.4 on page 4-18. Access the submenu H201Ti V2.2x;Service.

  • Page 148: Logging The Values Of The Service Data

    Chapter 6 • Hydran 201Ti Installation 6.4.8 Logging the Values of the Service Data Access the submenu H201Ti V2.2x;Service. Access the submenu Service;ServiceData. Write down the value of each parameter. 6.4.9 Verifying and Setting the Date and Time For details on the parameters and commands in the submenu Date&Time, see Section 4.5.5 on page 4-21.

  • Page 149: 6.4.11 Verifying And Setting The Operation Mode Of The Alarm Relays

    Configuring the Hydran 201Ti 6.4.11 Verifying and Setting the Operation Mode of the Alarm Relays For details on the parameters and commands in the submenu Relays/Analog, see Section 4.5.7 on page 4-23. For details on relays, see Section 10.2 on page 10-4. Access the submenu H201Ti V2.2x;Relays/Analog.

  • Page 150: Fastening The Hydran 201Ti's Cover

    Chapter 6 • Hydran 201Ti Installation FASTENING THE HYDRAN 201TI’S COVER Replace the H201Ti’s aluminum cover as soon as the installation is completed. Ensure the rubber washer is present on the central post. Slide the cover over the H201Ti. Fasten the cover by tightening the knob. The breathing membrane must be facing down (at the “6 o’clock”...

  • Page 151: Hydran 201Ci-C Installation

    Chapter 7 Hydran 201Ci-C Installation Please read the following Sections before proceeding with the installation: • General warnings, in Section 5.1 on page 5-1 • Installation overview, in Section 5.2 on page 5-7 INCOMING INSPECTION AND VERIFICATION It is strongly recommended to verify the operation of the Hydran 201Ti’s and Hydran 201Ci Controllers before their installation.

  • Page 152: Storage

    Chapter 7 • Hydran 201Ci-C Installation Verify the ac power supply voltage (indicated on the label inside the H201Ci-C, near the power supply terminal block) corresponds to the power source voltage and the value on the Test Certificate and Data Sheet (for an example, see Figure 6-1 on page 6-4).

  • Page 153: Initial Observations

    Verification of Operation Prior to Installation Proceed as follows: Connect a three-wire power cord to the ac Power 3-Terminal Block on the first H201Ti (item 8 in Figure 2-4 on page 2-8): The live side to L1/L, the other side to L2/N, and the ground to E/G.

  • Page 154: Verification Of Rs-232 And Rs-485 Communications

    Chapter 7 • Hydran 201Ci-C Installation On each Hydran 201Ci-C, look at the Heater indicator (yellow, DS8; item 13 in Figure 3-3 on page 3-5): • The LED must initially be lit if the ambient temperature is below approximately 25 °C (77 °F).
  • Page 155 Verification of Operation Prior to Installation At least one H201Ti in a local network must be set with an identifi- WARNING CAUTION cation number (Gas Monitor ID) from 1 to 5 inclusively. Each H201Ti in a local network must have an exclusive number from 1 to 254.

  • Page 156: Completing The Verification

    Chapter 7 • Hydran 201Ci-C Installation • Ensure the Communications Status indicator (yellow, DS6; item 23 in Figure 3-3 on page 3-5) flickers inside each H201Ci-C when the host computer communicates with any H201Ti of the H201Ci-C. 12. When the test is completed, in the Relays/Analog window of the Hydran Host software, restore the Relay Mode of each relay to Normal.

  • Page 157: Verifying The Ac Power Supply Voltage And The Serial Numbers

    Installation Note: It is strongly recommended that the operation of all H201Ti’s and H201Ci Controllers be verified before installation of the equipment in the field. Verification also allows the user to become familiar with the Hydran 201i System. All procedures in this manual must be strictly adhered to. Any WARNING CAUTION deviation from these could cause irreversible damages to the...

  • Page 158: Installing The Supervisory Link Cables

    Chapter 7 • Hydran 201Ci-C Installation The procedure is as follows: Remove the rubber plugs from the required openings of the H201Ci-C enclosure. For each cable being used, install a standard, watertight conduit fitting (not supplied). Up to eight conduits may be installed (supervisory links, ac power supply). Mount a conduit to each fitting.

  • Page 159: Installing The Ac Power Supply Cable

    Installation The H201Ci-C’s operation may be affected if wires are not WARNING CAUTION connected correctly. Be careful when installing and inserting each wire. Be sure to insert all strands in the terminal; strands that touch two terminals cause problems. Strip each wire to a maximum of 8 mm before installing it.

  • Page 160: Conclusion

    Chapter 7 • Hydran 201Ci-C Installation 7.3.8 Conclusion The installation of the Hydran 201Ci-C is now completed. OTHER INSTALLATIONS To install other components of the Hydran 201i System, please consult the following Sections: • Local network: See Section 9.5 on page 9-8. •...

  • Page 161: Hydran 201Ci-1 Installation

    Chapter 8 Hydran 201Ci-1 Installation Please read the following Sections before proceeding with the installation: • General warnings, in Section 5.1 on page 5-1 • Installation overview, in Section 5.2 on page 5-7 INCOMING INSPECTION AND VERIFICATION It is strongly recommended to verify the operation of the Hydran 201Ti’s and Hydran 201Ci Controllers before their installation.

  • Page 162: Verification Of Operation Prior To Installation

    Chapter 8 • Hydran 201Ci-1 Installation Verify the ac power supply voltage (indicated on the label inside the H201Ci-1, near the main terminal block) corresponds to the power source voltage and the value on the Test Certificate and Data Sheet (for an example, see Figure 6-1 on page 6-4). There are two possibilities: •...

  • Page 163: Preparation

    Verification of Operation Prior to Installation 8.2.1 Preparation To verify its operation, the Hydran 201Ci-1 must first be connected to a functional Hydran 201Ti via a supervisory link cable. One end of this cable is already connected to the H201Ti. For details on commissioning the H201Ti, see Chapter 6. Proceed as follows: Connect a three-wire power cord to the ac Power 3-Terminal Block on the H201Ti (item 8 in Figure 2-4 on page 2-8): The live side to L1/L, the other side to L2/N, and the ground to E/G.

  • Page 164: Verifying The Analog Output

    Chapter 8 • Hydran 201Ci-1 Installation Inside the H201Ci-1, verify the Supervisory Link Supply indicator (green, DS12; item 17 in Figure 3-7 on page 3-12) is lit. Inside the H201Ci-1, look at the Heater indicator (yellow, DS8; item 13 in Figure 3-7 on page 3-12): •...
  • Page 165 Verification of Operation Prior to Installation On the Hydran 201Ti’s display, access the top of the extended menu by pushing ENTER twice (History appears). Note: Once accessed, the extended menu times out after 30 minutes of keypad inactivity. Push DOWN six times until Relays/Analog appears. Access this menu by pushing ENTER.

  • Page 166: Verifying The Alarm Indicators And Relays

    Chapter 8 • Hydran 201Ci-1 Installation 23. Verify the H201Ci-1’s display reads 1999 ppm. Note: The maximum value of the Hydran 201Ci-1’s display scale is 1999 ppm. If the signal is over scale, the display indicates 1... when the operation mode is set to Force 100 %. 24.

  • Page 167: Gas High-High Alarm

    Verification of Operation Prior to Installation Set the parameter RelayMode of the Gas High relay to On. On the H201Ci-1, verify that: • The door-mounted 1 push-button indicator is lit. • The Alarm 1 (Gas High) indicator (yellow, DS10; item 15 in Figure 3-7 on page 3-12) is lit.

  • Page 168: System Fault Alarm Cleared

    Chapter 8 • Hydran 201Ci-1 Installation Set the parameter RelayMode of the System Fault relay to Off. On the H201Ci-1, verify that: • The display goes blank. • The two door-mounted push-button indicators (1 and 2) remain lit. • The System OK indicator (yellow, DS11; item 16 in Figure 3-7 on page 3-12) turns off. •...

  • Page 169: Conclusion

    Verification of Operation Prior to Installation Access the submenu Relays/Analog;GasHH Relay Set the parameter RelayMode of this relay to Normal. On the H201Ci-1, verify that: • The two door-mounted push-button indicators (1 and 2) remain lit. • The Alarm 1 (Gas High) indicator (yellow, DS10; item 15 in Figure 3-7 on page 3-12) is off.
  • Page 170 Chapter 8 • Hydran 201Ci-1 Installation In the Communication submenu of the Hydran 201Ti, write down the current settings, in order to be able to restore them. Set the parameters as follows: • Comm Channel = Supervisory Link • Default Channel = Supervisory Link •...

  • Page 171: Installation

    Installation If the H201Ti is not installed immediately, refer to Section 6.1.4 on page 6-5. If the H201Ci-1 is not installed immediately, refer to Section 8.1.3 on page 8-2. INSTALLATION This Section explains how to install the Hydran 201Ci-1 Controller. Read all the warnings and recommendations in Section 5.1 on WARNING CAUTION...

  • Page 172: Installing The Cable Conduits

    Chapter 8 • Hydran 201Ci-1 Installation 8.3.3 Installing the Cable Conduits Note the following considerations prior to installing: • All cables connected to the Hydran 201Ci-1 must be run through steel conduits. Otherwise, armored cables can be used. • Flexible rather than rigid conduits should be used near the H201Ci-1 to ease installation and servicing.

  • Page 173: Installing The Analog Output Cable (Facultative)

    Installation Note: The shield is grounded through a capacitor at the H201Ti end to protect against radiofrequency interference. Shields must also be directly grounded at the H201Ci-1’s termination board. The H201Ci-1’s operation may be affected if wires are not connected WARNING CAUTION correctly.

  • Page 174: Installing The Ac Power Supply Cable

    Chapter 8 • Hydran 201Ci-1 Installation 8.3.7 Installing the ac Power Supply Cable Run the three-wire ac power supply cable through a conduit up to the Hydran 201Ci-1. Connect the cable to terminals 1 and 2 of the main terminal block, and connect the E/G wire to the enclosure chassis.

  • Page 175: 8.3.10 Verifying Alarm Indicators And Alarm Relays

    Other Installations 8.3.10 Verifying Alarm Indicators and Alarm Relays Proceed as described in Section 8.2.4 on page 8-6. 8.3.11 Verifying the Supervisory Link Communications Verify communications between the Hydran 201Ci-1 and the Hydran 201Ti using a host computer running the Hydran Host software. Proceed as described in Section 8.2.5 on page 8-9.
  • Page 176 Chapter 8 • Hydran 201Ci-1 Installation PAGE LEFT INTENTIONALLY BLANK 8-16 Rev. 6, March 2011 Part 17997...

  • Page 177: Communications And Networking

    Chapter 9 Communications and Networking There are many possible configurations of Hydran 201Ti Intelligent Transmitters: • It can be used alone. • It can be combined with a Hydran 201Ci-1 One-Channel Controller (see Section 3.2 on page 3-7) to form a Hydran 201R Model i. •...

  • Page 178: Tdm Pulse

    Chapter 9 • Communications and Networking – One shielded pair to transmit serial communications. – For the Hydran 201Ci-1 only: One shielded pair for the TDM (time division multi- plexing) signal transmitted by the H201Ti (see Section 9.1.1 on page 9-2). •...

  • Page 179: Communications In A Network, Using An Rs-485 Local Network Link

    Communications in a Network, Using an RS-485 Local Network Link Table 9-1 - Alarm Relay States, and Status of the H201Ti, TDM Signal and H201Ci-1 Hydran 201Ti Hydran 201Ci-1 Sup. Alarm Relays Relays Link Signal Power Power Display Fail H HH Fail H HH None...

  • Page 180: Figure 9-1 - Example Of Local Network

    Chapter 9 • Communications and Networking • The H201Ci’s manage all communications automatically (transmission and reception). Data transmission is half-duplex (one direction at a time, from a single talker). • Ideally, the H201Ci’s should be located in a limited zone of an electrical substation, for example the control room.

  • Page 181: Communications With A Host Computer, Using An Rs-232 Serial Communication Link

    Communications With a Host Computer, Using an RS-232 Serial Communication • In the H201Ci-1: To the terminals 21 to 24 of the Main Terminal Block (item 6 in Figure 3-6 on page 3-11). The installation of an RS-485 local network link cable is described in Section 9.5.1 on page 9-9.

  • Page 182: Local Communications

    Chapter 9 • Communications and Networking • In the H201Ci-C: To the DB-9 Male RS-232 Computer Port Connector J10 (item 7 in Figure 3-3 on page 3-5) on the circuit board. • In the H201Ci-1: To the DB-9 Male RS-232 Computer Port Connector J10 (item 7 in Figure 3-7 on page 3-12).

  • Page 183: Figure 9-3 - Typical Communication Configuration With A Modem

    Communications With a Host Computer, Using an RS-232 Serial Communication Host computer Modem Telephone system (internal or external) - Fixed baud rate (matched Note: When programming a WARNING: The with H201T baud rate) modem, ensure the software modems supplied by - No flow control being used does not General Electric...

  • Page 184: Communication Protocol

    Chapter 9 • Communications and Networking When using a modem, each Hydran 201Ti can be set to either one of the two following modes (in the Communication submenu; see Section 4.5.6 on page 4-21): • Call OnAlarm: In this mode, the H201Ti communicates with the Hydran Host software through a telephone line each time a gas or fail alarm condition is detected (to select this mode, see Section 9.6.3 on page 9-13).

  • Page 185: Installing An Rs-485 Local Network Link Between Hydran 201Ci Controllers

    Local Network Installation 9.5.1 Installing an RS-485 Local Network Link Between Hydran 201Ci Controllers A local network is a chain of Hydran 201i Systems and/or Hydran 201R Model i’s in which the Hydran 201Ci Controllers are connected together using an RS-485 link. If the instal- lation includes only one Hydran 201i System or Hydran 201R Model i, go to Section 9.5.2 on page 9-10.

  • Page 186: Connecting A Host Computer To A Hydran 201Ci Controller In A Local Network, Using An Rs-232 Cable

    Chapter 9 • Communications and Networking 9.5.2 Connecting a Host Computer to a Hydran 201Ci Controller in a Local Network, Using an RS-232 Cable The supplied RS-232 cable (1.8 m [6 ft]) can be connected to any H201Ci in a local network to allow a host computer to communicate with all H201Ci’s and Hydran 201Ti’s in the network.

  • Page 187: Optional Modem Installation

    Optional Modem Installation OPTIONAL MODEM INSTALLATION Remote communications with a Hydran 201i System or a Hydran 201R Model i can be established using a telephone system (private or public). This Section pertains to Hydran 201Ci Controllers equipped with an internal modem (optional, available from General Electric Canada).
  • Page 188 Chapter 9 • Communications and Networking In the Hydran Host software, enter the telephone number and the communication speed of the H201Ci’s modem in the Power Stations Set-Up window (see the Hydran Host Software Manual). Note: The communication speed assigned to the power station in the Hydran Host software must be the same as the one set in all H201Ti’s in the local network.

  • Page 189: Configuring The Call Onalarm Mode

    Optional Modem Installation 9.6.3 Configuring the Call OnAlarm Mode Prior to use the Call OnAlarm mode, make sure of the following: • The installation of the Hydran 201i System is completed. • The network configuration is defined in the Hydran Host software (see the Hydran Host Software Manual).
  • Page 190 Chapter 9 • Communications and Networking PAGE LEFT INTENTIONALLY BLANK 9-14 Rev. 6, March 2011 Part 17997...
  • Page 191 Chapter 10 Alarms This Chapter explains in detail the sophisticated alarm features of the Hydran 201i System from an operator’s point of view. Note: The complete list of alarm messages and each corresponding troubleshooting procedure are given in Section 12.1 on page 12-1. Wiring the alarm contacts (see Section 10.2.1 on page 10-4) to safety WARNING CAUTION...

  • Page 192: Alarm Levels

    Chapter 10 • Alarms 10.1 ALARM LEVELS The Hydran 201i System is a microprocessor-based family of instruments with sophisti- cated alarm features. It is equipped with three alarm levels: • Gas High alarm (Hydran 201Ti’s Alarm 1): This alarm is set at a lower gas level than the High-High alarm.

  • Page 193: 10.1.2 Purpose Of Hourly And Daily Trends

    Alarm Levels in the oil during a period of time measured in days. The daily trend is updated every five minutes. The complete list of fail alarm conditions is shown in Section 10.5.1 on page 10-14. Table 10-1 on page 10-3 lists the alarm conditions monitored by the Hydran 201Ti. Table 10-1 - Alarm Conditions Monitored by the Hydran 201Ti Source Possible States...

  • Page 194: Alarm Relays

    Chapter 10 • Alarms 10.2 ALARM RELAYS The Hydran 201Ti and the Hydran 201Ci-1 both have three alarm relays, in other words one relay per alarm level: • One gas High alarm relay • One gas High-High alarm relay • One fail alarm relay, referred to as System in the H201Ti’s menus Note: The Hydran 201Ci-C does not have alarm relays.

  • Page 195: 10.2.3 Operation Modes Of Alarm Relays

    Alarm Relays the H201Ci triggers a fail alarm, regardless of the H201Ti’s fail alarm relay). As far as the fail alarm relay, the coil is energized in normal operation (no alarm). Table 9-1 on page 9-3 lists the possible states of all relays. The state of each relay can be determined as follows: •...

  • Page 196: Normal Mode

    Chapter 10 • Alarms • Force OFF: See Section 10.2.3.3 on page 10-7. • Force ON: See Section 10.2.3.4 on page 10-7. The H201Ti’s three relays are independent. A relay can therefore be set to any operation mode regardless of the mode of the two other relays. 10.2.3.1 Normal Mode In this mode, the relay status changes if an alarm condition is detected during a period of...

  • Page 197: Force Off

    Alarm Interface 10.2.3.3 Force OFF In this mode, the relay does not respond to changes in alarm conditions; the relay’s power always remains off. This mode is used mainly to test the alarm relays or disable an alarm circuit. 10.2.3.4 Force ON In this mode, the relay does not respond to changes in alarm conditions;...

  • Page 198: Gas High And High-High Alarms

    Chapter 10 • Alarms status of the gas alarms. Each push-button turns on when the corresponding alarm is triggered. The push-button’s alarm indicator is latched; in other words, it remains on even if the alarm condition has disappeared and even if the alarm is acknowledged (using the H201Ti’s keypad or the Hydran Host software).

  • Page 199: 10.4.1 Alarm Parameters Setting

    Gas High and High-High Alarms 10.4.1 Alarm Parameters Setting 10.4.1.1 Gas Level The gas level alarm uses the following parameters: • GasAlr H and GasAlr HH: Gas High and High-High alarm set points. • GasAlr Delay: The gas alarms delay determines the period of time during which the gas level must exceed the gas High and High-High alarm set points in order to trigger the alarm.

  • Page 200: Hourly Trend

    Chapter 10 • Alarms Table 10-4 - Suggested Guidelines for Setting the Gas Level High Alarm Condition Hydran 201Ti Maximum Reading Minimum Suggested Alarm Set Point Obtained During the Monitoring Period to Reduce the Likelihood of Unnecessary Alarms Below 70 ppm 100 ppm From 70 to 400 ppm 1.5 times the highest H201Ti reading...

  • Page 201: 10.4.2 Guidelines For Setting Trend Alarms

    Gas High and High-High Alarms • DailyTr Period: The period of time (in days) during which the daily trend is calculated. Increasing the period decreases the normal fluctuations of the readings, but increases the response time. The readings of the Hydran 201i System should be monitored over a minimum period of two months before setting these parameters;...

  • Page 202: 10.4.3 Hourly And Daily Trend Computations

    Chapter 10 • Alarms The longer the trend period, the higher the trend value in ppm is for a given steady increase in gas level reading. For example, a constant gas level increase of 10 ppm/24 hours results in a 10 ppm/period reading if the period is set to 24 hours, but in a 20 ppm/period reading if the period is set to 48 hours.

  • Page 203: 10.4.4 High And High-High Alarms Triggering

    Gas High and High-High Alarms Note the following points: • If the Hydran 201Ti undergoes a power failure that lasts less than 1/6 of the trend period, the corresponding trend reading remains constant until the H201Ti is powered up again. •...

  • Page 204: Fail Alarm

    Chapter 10 • Alarms Acknowledge the alarm using the H201Ti’s keypad or the Hydran Host software. For the procedure, see Section 4.2.1 on page 4-3, and the Hydran Host Software Manual. If the problem has been corrected since a period of time exceeding the corresponding alarm delay, the alarm message then disappears from the H201Ti’s display;...

  • Page 205: 10.5.2 Fault Triggers

    Fail Alarm 10.5.2 Fault Triggers Fault triggers are fail alarm conditions that can produce two actions: • Display of a message on the screen. The alarm message is displayed only if the corre- sponding alarm set point is adjusted to a value; if not, it is set to OFF. This setting is performed in the corresponding submenu.

  • Page 206: Sensor Temperature Fault Triggers

    Chapter 10 • Alarms Table 10-7 - Gas Fault Triggers Description Priority Alarm Set Point Fault Trigger Alarm Message Low-Low gas level GasAlr LL Gas LL Low gas level GasAlr L Gas L Low-Low hourly trend HourTrAlr LL HourTrend LL Average Low hourly trend HourTrAlr L...

  • Page 207: Sensor Operation And Connections Fault Triggers

    Fail Alarm Table 10-9 - Battery Voltage Fault Triggers Alarm Set Description Priority Fault Trigger Alarm Message Point Low-Low battery voltage Average Batt.Alr LL Batt. LL Low battery voltage Very low Batt.Alr L Batt. L For explanations on the battery, see Section 2.7 on page 2-15. 10.5.2.4 Sensor Operation and Connections Fault Triggers A sensor test is automatically performed on the first and fifteenth days of each month at...
  • Page 208 Chapter 10 • Alarms Acknowledge the alarm using the Hydran 201Ti’s keypad or the Hydran Host software. For the procedure, see Section 4.2.1 on page 4-3, and the Hydran Host Software Manual. If the problem has been corrected during a period of time exceeding the corresponding alarm delay, the alarm message then disappears from the H201Ti’s display;...

  • Page 209: Operating The Hydran 201I System

    Chapter 11 Operating the Hydran 201i System Read all the warnings and recommendations in Section 5.1 on WARNING CAUTION page 5-1 before proceeding with the operation. 11.1 OPERATING METHODS The Hydran 201i System can be operated using several methods. Each of these methods is explained in the following pages, from the simplest to the most powerful one: •...

  • Page 210: Method Drawbacks

    Chapter 11 • Operating the Hydran 201i System Note: With this method, the analog outputs and the alarm contacts are not connected to a SCADA system. 11.1.1.1 Method Drawbacks The periodic, visual monitoring method has a deficient response time following the detection of an alarm;...

  • Page 211: 11.1.3 Analog Output Monitoring

    Operating Methods 11.1.3 Analog Output Monitoring The analog output monitoring (gas level monitoring via the analog output) solves the disad- vantages of the alarm monitoring method (Section 11.1.2 on page 11-2) as follows: • Connecting the analog output to a SCADA system. The Hydran 201Ti and the Hydran 201Ci-1 both have analog outputs that allow to monitor the gas level evolution.

  • Page 212: Conclusion

    Chapter 11 • Operating the Hydran 201i System 11.1.3.2 Conclusion Because of the above limitations and because it is not possible to change the Hydran 201i System’s parameters from the control room, we can conclude that the analog output monitoring method (gas level monitoring via the analog output) still requires that a host computer be connected to the Hydran 201Ci Controller to retrieve the Hydran 201Ti’s historic data and modify parameters.

  • Page 213: Method Benefits

    Data Reading For details, see the Hydran Host Software Manual. Note: Other softwares can be run on the host computer at the same time as the Hydran Host software. 11.1.5.1 Method Benefits The advantages of this method are as numerous as important: •...

  • Page 214: 11.2.1 Direct Data Reading

    Chapter 11 • Operating the Hydran 201i System • Reading of the Hydran 201i System’s historic data (using the H201Ti or the Hydran Host software): See Section 11.2.2 on page 11-6. 11.2.1 Direct Data Reading Data can be read directly as follows: •...
  • Page 215 Data Analysis Other parameters (transformer load, oil temperature, dissolved gas analysis [DGA]) can also be useful in interpreting the gas level and trend evolutions. This information can even be used to comment the historic data (see the Hydran Host Software Manual). An excellent source of information on the interpretation of gases in oil is the IEEE Standard C57.104-1991 “Guide for the Interpretation of Gases in Oil-Immersed Transformers.”...
  • Page 216 Chapter 11 • Operating the Hydran 201i System PAGE LEFT INTENTIONALLY BLANK 11-8 Rev. 6, March 2011 Part 17997...

  • Page 217: Troubleshooting

    Chapter 12 Troubleshooting Read all warnings and recommendations in Section 5.1 on page 5-1 WARNING CAUTION before attempting one of the troubleshooting procedures listed in this Chapter. The following useful references help to understand the instructions given in this Chapter: •...

  • Page 218: Battery L

    Chapter 12 • Troubleshooting • Sensor Not Inst!: See Section 12.1.19 on page 12-11. • SensTemp H: See Section 12.1.20 on page 12-12. • SensTemp HH: See Section 12.1.21 on page 12-12. • SensTemp L: See Section 12.1.22 on page 12-13. •...
  • Page 219 Alarm Messages on the Hydran 201Ti’s Display • Non-abbreviated description: Cable open (not connected) • Priority: Very high (repair cable immediately) • Parameter(s) involved: – CableOpen; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – No set point nor delay •...

  • Page 220: Cableshort

    Chapter 12 • Troubleshooting 12.1.4 CableShort • Alarm type: Fail alarm • Non-abbreviated description: Short-circuited cable • Priority: Very high (repair cable immediately) • Parameter(s) involved: – CableShort; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – No set point nor delay •...

  • Page 221: Daytrend Hh

    Alarm Messages on the Hydran 201Ti’s Display normal, verify whether the value of the alarm set point is adequate. This parameter was probably set to a value that is too low. If the gas level value is abnormally too high and the alarm set point is set to an adequate value, verify the reading accuracy of the Hydran 201i System.

  • Page 222: Daytrend Ll

    Chapter 12 • Troubleshooting • Alarm cause(s): Daily trend below the DayTrAlr L alarm set point. Probably indicates a gas level reading problem. Proceed as follows: Verify the daily trend calculated by the Hydran 201Ti. This value is displayed in the Main Display mode (see Section 4.2.2 on page 4-4) and also in the DailyTrend screen in the Gas;DailyTrend submenu (see Section 4.5.2.3 on page 4-17).

  • Page 223: Gas H

    Alarm Messages on the Hydran 201Ti’s Display Proceed as described for the DayTrend L alarm (Section 12.1.7 on page 12-5). 12.1.9 Gas H • Alarm type: Gas alarm • Non-abbreviated description: Gas level High • Priority: Medium • Parameter(s) involved: –...

  • Page 224: 12.1.12 Gas Ll

    Chapter 12 • Troubleshooting 12.1.12 Gas LL • Alarm type: Fail alarm • Non-abbreviated description: Gas level Low-Low • Priority: Medium • Parameter(s) involved: – Gas LL; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – GasAlr LL (alarm set point); Gas;GasLevel submenu; Section 4.5.2.1 on page 4-16 –...

  • Page 225: 12.1.15 Hourtrend L

    Alarm Messages on the Hydran 201Ti’s Display • Priority: High • Parameter(s) involved: – HourTrAlr HH (alarm set point); Gas;HourlyTrend submenu; Section 4.5.2.2 on page 4-16 – HourTrAlr Delay; Gas;HourlyTrend submenu; Section 4.5.2.2 on page 4-16 • Alarm cause(s): Hourly trend above the HourTrAlr HH alarm set point Perform step 1 in Section 12.1.13 on page 12-8, and then steps 2 to 5 in Section 12.1.5 on page 12-4.

  • Page 226: 12.1.17 Replace Sensnow

    Chapter 12 • Troubleshooting • Parameter(s) involved: – HourTrend LL; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – HourTrAlr LL (alarm set point); Gas;HourlyTrend submenu; Section 4.5.2.2 on page 4-16 – HourTrAlr Delay; Gas;HourlyTrend submenu; Section 4.5.2.2 on page 4-16 •...

  • Page 227: 12.1.19 Sensor Not Inst

    Alarm Messages on the Hydran 201Ti’s Display • Alarm cause(s): The sensor sensitivity has dropped or the sensor is not functioning. Replace the sensor as soon as possible. Note: The Hydran 201Ti’s H201 sensor is verified twice a month (the first and fifteenth days of the month at midnight);...

  • Page 228: 12.1.20 Senstemp H

    Chapter 12 • Troubleshooting 12.1.20 SensTemp H • Alarm type: Fail alarm • Non-abbreviated description: Sensor temperature High • Priority: Low • Parameter(s) involved: – SensTemp H; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – STempAlr H (alarm set point); Temperature submenu; Section 4.5.3 on page 4-17 –...

  • Page 229: 12.1.22 Senstemp L

    Alarm Messages on the Hydran 201Ti’s Display 12.1.22 SensTemp L • Alarm type: Fail alarm • Non-abbreviated description: Sensor temperature Low • Priority: Low • Parameter(s) involved: – SensTemp L; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23 – STempAlr L (alarm set point); Temperature submenu; Section 4.5.3 on page 4-17 –...

  • Page 230: And/Or Rs-485 Communications

    Chapter 12 • Troubleshooting The Setup Lost alarm can be triggered by three causes. Each one is identified by a number displayed at the right of the message: • (1) The value of at least one Hydran 201Ti’s parameters is incorrect in the memory; in other words, the parameter has been changed, but not by a user.

  • Page 231: No Communication When The Host Computer Is Connected Directly Or By Modem To The Hydran 201Ci Controller's Db-9 Or Usb Connector

    RS-232 and/or RS-485 Communications Ensure the modem’s configuration string is correct. 12.2.2 No Communication When the Host Computer is Connected Directly or by Modem to the Hydran 201Ci Controller’s DB-9 or USB Connector Ensure the CommChannel parameter (communication channel; Communication submenu;...

  • Page 232: Hydran 201Ci Controller's Display Is Blank

    Chapter 12 • Troubleshooting Verify all RS-485 local network link cables. Disconnect all RS-485 link cables and “rebuild” the network, one H201Ci Controller at a time. See Section 7.2.3 on page 7-4. 12.3 HYDRAN 201CI CONTROLLER’S DISPLAY IS BLANK If the fail alarm is triggered (and the analog outputs have dropped to 4.00 ± 0.10 mA), read the alarm message on the Hydran 201Ti’s display to identify the cause of the alarm.

  • Page 233: Alarms

    Alarms 12.5 ALARMS 12.5.1 Fail Alarm Is Triggered Read the alarm message on the Hydran 201Ti’s display to identify the cause of the alarm. Then see Section 12.1 on page 12-1. Verify the fuses and power supply of the Hydran 201Ci Controller and H201Ti. Verify the connections of the TDM signal at both ends of the supervisory link cable.

  • Page 234: Irregular Gas Readings

    Chapter 12 • Troubleshooting Verify the relay’s contacts and the circuit by setting the corresponding RelayMode parameter to Force ON and Force OFF in the H201Ti’s Relays/Analog submenu. 12.5.5 Irregular Gas Readings Ensure the valve (on which the Hydran 201Ti is installed) is fully open. Confirm that the valve type is acceptable (full bore, gate or ball, no restriction between valve and tank).

  • Page 235: Gas Level Reading Is Abnormally High

    Alarms Verify the Hydran 201 sensor’s serial number and parameters in the H201Ti’s Service;SensorCal Data submenu (Section 4.5.4.1 on page 4-18). Execute the H201Ti’s ForceSensor Test command (Relays/Analog submenu) to test the sensor operation. Verify the parameters pertaining to the sensor temperature (Temperature submenu). Consult General Electric Canada to optimize the value of the parameters and the location of the H201 sensor.
  • Page 236 Chapter 12 • Troubleshooting PAGE LEFT INTENTIONALLY BLANK 12-20 Rev. 6, March 2011 Part 17997...

  • Page 237: Maintenance

    Chapter 13 Maintenance The maintenance schedule suggested in this Chapter provides optimum performance and reliability from the Hydran 201i System. The maintenance routines should be performed in fair weather. All procedures in this manual must be strictly adhered to. Any WARNING CAUTION deviation from these could cause irreversible damages to the...

  • Page 238: Historic Data Verification

    Chapter 13 • Maintenance Table 13-1 - Maintenance Routines and Their Frequency Routine Frequency Historic data verification (Section 13.1 on page 13-2) Annually or on alarm Dissolved gas analysis (DGA; Section 13.2 on page 13-3) Hydran 201Ti verification (Section 13.3 on page 13-4): •...

  • Page 239: Dissolved Gas Analysis (Dga)

    Dissolved Gas Analysis (DGA) If the data is read from the H201Ti, follow the instructions in Section 4.5.1 on page 4-12. The data can be collected using a host computer running the Hydran Host software (see the Hydran Host Software Manual). The historic data are verified as follows: Consult the historic data file Events to investigate suspicious alarms and other events.

  • Page 240: Hydran 201Ti Verification

    Chapter 13 • Maintenance • Methane (CH • Ethane (C • Carbon dioxide (CO • Nitrogen (N • Oxygen (O The Hydran 201i System gives a composite reading of the first four gases in the above list, in other words the gases generated by transformer incipient faults. This reading can be compared to the DGA results using the following formula: H201Ti reading = 100 % [H ] + 18 % [CO] + 8 % [C...
  • Page 241 Hydran 201Ti Verification The H201Ti is verified as follows: Check for oil leaks. If necessary, clean and retighten the brass adaptor and the H201 sensor. Check for loose connections on the terminal blocks and connectors. Retighten if necessary. WARNING ac power supply voltage is present on most terminals. CAUTION Verify the LED’s, the heater, the display and the keypad by performing the procedure in Section 6.2.2 on page 6-7.

  • Page 242: Hydran 201Ci Controller Verification

    Chapter 13 • Maintenance 11. Verify the parameters (only accessed using the H201Ti’s keypad) in the Communi- cation submenu (Section 4.5.6 on page 4-21) by performing the procedure in Section 6.4.10 on page 6-34. If they must be adjusted, see Section 6.4.1 on page 6-30. 12.

  • Page 243: Fuse

    Fuse If necessary, clean and fix the enclosure. Check for loose connections on the terminal blocks and connectors. Retighten if necessary. WARNING ac power supply voltage is present on most terminals. CAUTION Verify the LED’s, the heater and the display by performing the procedure in Section 8.2.2 on page 8-3.
  • Page 244 Chapter 13 • Maintenance PAGE LEFT INTENTIONALLY BLANK 13-8 Rev. 6, March 2011 Part 17997...

  • Page 245: Technical Specifications For The Hydran 201I System

    Appendix A Technical Specifications for the Hydran 201i System HYDRAN 201TI INTELLIGENT TRANSMITTER GENERAL Description Continuous, on-line, intelligent gas-in-oil transmitter Components Sensor and electronic modules housed in cylindrical enclosure Gas Response Hydrogen (H ), carbon monoxide (CO), acetylene (C ), ethylene (C Medium Mineral, insulating oil for transformers Application Transformer monitoring;...
  • Page 246 Appendix A • Technical Specifications for the Hydran 201i System Display Backlit liquid crystal display (LCD); 2 lines x 16 characters Keypad 6 keys: ENTER, UP, DOWN, CHANGE, ESC and END Alarm Contacts • Gas High, gas High-High and Fail •...
  • Page 247 Hydran 201Ti Intelligent Transmitter Weight • Installed: 5.6 kg (12 lb) • Shipping: 6.9 kg (15 lb) Hydran Host Supports all H201Ti functions plus networking and embedded software Software upgrading; available in Microsoft Windows version Note: General Electric Canada has made every reasonable attempt to ensure the comple- teness and accuracy of these technical specifications.

  • Page 248: Hydran 201Ci-C Communications Controller

    Appendix A • Technical Specifications for the Hydran 201i System HYDRAN 201CI-C COMMUNICATIONS CONTROLLER GENERAL Description Remote controller for one to four Hydran 201Ti’s; manages communi- cations, including networking Components Electronic unit housed in a waterproof enclosure, suitable for outdoor installation Application Supervision of one to four H201Ti’s and/or a network of up to 128 H201Ti’s via a single RS-232 or USB port, either locally or...
  • Page 249 Hydran 201Ci-C Communications Controller MISCELLANEOUS Enclosure Type NEMA 4X steel enclosure; baked enamel; textured white finish Dimensions 244.5 x 349.3 x 157.7 mm (9 5/8 x 13 3/4 x 3 3/16 in) Operating Temperature -40 to +55 °C (-40 to +131 °F) with standard internal heater Power Supply •...

  • Page 250: Hydran 201Ci-1 One-Channel Controller

    Appendix A • Technical Specifications for the Hydran 201i System HYDRAN 201CI-1 ONE-CHANNEL CONTROLLER GENERAL Description Remote controller for one Hydran 201Ti; provides network communi- cations capabilities, a gas level digital display, alarm contacts, alarm indicators and an isolated, analog output Components Electronic unit housed in a waterproof enclosure, suitable for outdoor installation Application Supervision of one H201Ti and/or a network of up to 128 H201Ti’s via...
  • Page 251 Hydran 201Ci-1 One-Channel Controller Recommendation Run all communication cables in flexible or rigid, metallic conduits for maximal mechanical and electrical protection MISCELLANEOUS Enclosure Type NEMA 4X steel enclosure; baked enamel; textured white finish Dimensions 244.5 x 349.3 x 157.7 mm (9 5/8 x 13 3/4 x 3 3/16 in) Operating Temperature -40 to +55 °C (-40 to +131 °F) with standard internal heater Power Supply •...
  • Page 252 Appendix A • Technical Specifications for the Hydran 201i System PAGE LEFT INTENTIONALLY BLANK Rev. 6, March 2011 Part 17997...

  • Page 253: Mechanical Drawings

    Appendix B Mechanical Drawings HYDRAN 201TI INTELLIGENT TRANSMITTER 186 mm (7.3 in) H201 H201Ti V2.2x SENSOR MainMenu TRANSFORMER VALVE: FULL-BORE GATE OR BALL VALVE (25.4 to 76.2 mm [1 to 3 in]) 47.6 mm 180.8 mm (1-7/8 in) (7-1/8 in) 203 mm (8 in) Figure B-1 - Hydran 201Ti Dimensions...

  • Page 254: Figure B-3 - 1.5-In Adaptor

    Appendix B • Mechanical Drawings Figure B-3 - 1.5-In Adaptor Rev. 6, March 2011 Part 17997...

  • Page 255: Figure B-4 - 1-In Adaptor

    Hydran 201Ti Intelligent Transmitter Figure B-4 - 1-In Adaptor Part 17997 Rev. 6, March 2011...

  • Page 256: Figure B-5 - 2-In Adaptor

    Appendix B • Mechanical Drawings Figure B-5 - 2-In Adaptor Figure B-6 - Finned High-Temperature Adaptor Rev. 6, March 2011 Part 17997...

  • Page 257: Hydran 201Ci-C Communications Controller

    HYDRAN 201CI-C COMMUNICATIONS CONTROLLER INSTALL WITH 4 MOUNTING REF. 101.6 mm BOLTS 6 mm (1/4 in) 4 in) ® Hydran 201Ci-C GE Energy REF. 4.7 mm 76.2 ± 0.8 mm (3/16 in) (3 ± 1/32 in) MOUNTING BOLTS LOCATION REF. 157.7 mm (6 3/16 in) REF.

  • Page 258: Hydran 201Ci-1 One-Channel Controller

    HYDRAN 201CI-1 ONE-CHANNEL CONTROLLER INSTALL WITH 4 MOUNTING REF. 101.6 mm BOLTS 6 mm (1/4 in) 4 in) ® Hydran 201Ci-1 GE Energy REF. 4.7 mm 76.2 ± 0.8 mm (3/16 in) (3 ± 1/32 in) REF. 157.7 mm MOUNTING BOLTS LOCATION (6 3/16 in) REF.

  • Page 259: Functional Block Diagrams

    Appendix C Functional Block Diagrams HYDRAN 201TI INTELLIGENT TRANSMITTER Part 17997 Rev. 6, March 2011...

  • Page 260: Hydran 201Ci-C Communications Controller

    Appendix C • Functional Block Diagrams HYDRAN 201CI-C COMMUNICATIONS CONTROLLER RS-485 RS-485 1 MHz link port crystal (network) Communication Communication timers RS-232 Serial port communication Enclosure To 100 W temperature Triac switch heater control +5 V Communication activity Heater Opto- isolators Regulated power...

  • Page 261: Hydran 201Ci-1 One-Channel Controller

    Hydran 201Ci-1 One-Channel Controller HYDRAN 201CI-1 ONE-CHANNEL CONTROLLER Enclosure To 100 W Triac temperature heater switch control 0-1999 Display Display ppm display amplif. disable (DVM) Heater RS-485 RS-485 Standard, 1 MHz link PWM to port Output Config. isolated, crystal Output (network) analog output...
  • Page 262 Appendix C • Functional Block Diagrams PAGE LEFT INTENTIONALLY BLANK Rev. 6, March 2011 Part 17997...

  • Page 263: Terminal Blocks And Connectors

    Appendix D Terminal Blocks and Connectors HYDRAN 201TI INTELLIGENT TRANSMITTER Table D-1 - ac Power Supply: 3-Terminal Block, J3 Connector and Fuse Terminal Description To (Internal) From (External) Comments L1/L Line or Line1 JP0-1 through line filter Live side of ac supply F1 fuse 5 A, 250 V L2/N Neutral or Line2 JP0-2 through line filter Other side of ac supply...

  • Page 264: Table D-3 - Sw1 Voltage Selector

    Appendix D • Terminal Blocks and Connectors Table D-3 - SW1 Voltage Selector Voltage Selector Voltage Range Comment 115 V 90–132 Vac, 47–63 Hz 430-W maximum heating @ 264 Vac 230 V 180–264 Vac, 47–63 Hz The voltage selector is factory-selected and configured as per user requirements. Table D-4 - J2 Heater 6-Pin Connector Terminals Description...

  • Page 265: Table D-6 - J3 Local Analog Output Connector, J4 Isolated Supervisory Link Connector, And Termination Board

    Hydran 201Ti Intelligent Transmitter Table D-6 - J3 Local Analog Output Connector, J4 Isolated Supervisory Link Connector, and Termination Board Terminal Description From (Internal) To (External) Comments TDM pulse, output- Isolated RS-422 Must be connected Isolated RS-422 driver, J4-1 and to H201Ci-1;...

  • Page 266: Figure D-1 - Wiring Diagram For Active Current Output

    Appendix D • Terminal Blocks and Connectors Figure D-1 - Wiring Diagram for Active Current Output Figure D-2 - Wiring Diagram for Passive Current Output Table D-7 - DB-9 Male RS-232 Connector (Back of CPU Module) Terminal Name Direction Comments RxD (receives data) To H201Ti The DB-9 connector is wired as in...

  • Page 267: Hydran 201Ci-C Communications Controller

    Hydran 201Ci-C Communications Controller HYDRAN 201CI-C COMMUNICATIONS CONTROLLER Table D-8 - Main Terminal Block for the Hydran 201Ci-C Terminal Description From (internal) To (external) Comments J2-1, ac supply Line or Line1 Live side of ac supply connector F11 fuse: 5 A, 250 V J2-2, ac supply Other side of ac...
  • Page 268 Appendix D • Terminal Blocks and Connectors Terminal Description From (internal) To (external) Comments Serial data-, I/O J13-3, supervisory Must be unit No. 3 link connector No. 3 Isolated RS-485 connected to transceiver Serial data+, I/O J13-4, supervisory H201Ti unit No. 3 link connector No.

  • Page 269: Table D-9 - Sw1 Voltage Selector For The Hydran 201Ci-C

    Hydran 201Ci-C Communications Controller Terminal Description From (internal) To (external) Comments Supervisory link cable Direct ground Cable shield Chassis shield of unit No. 2 connection Not used Serial data-, I/O J15-3, supervisory Must be unit No. 1 link connector No. 1 Isolated RS-485 connected to transceiver Serial data+, I/O...

  • Page 270: Hydran 201Ci-1 One-Channel Controller

    Appendix D • Terminal Blocks and Connectors Table D-10 - J10 DB-9 Male RS-232 Connector for the Hydran 201Ci-C Terminal Name Direction Comments RxD (receives data) To H201Ci-C The DB-9 connector is wired as in a PC: Cross wires 2 and 3 when TxD (transmits data) From H201Ci-C connecting to a PC;...
  • Page 271 Hydran 201Ci-1 One-Channel Controller Terminal Description From (internal) To (external) Comments Gas High (Alarm 1) J18-6, alarm contacts connector Gas High (Alarm 1) J18-5, alarm Common contacts connector Gas High (Alarm 1) J18-4, alarm contacts connector Gas High-High J18-9, alarm Current rating: (Alarm 2) NO contacts connector...
  • Page 272 Appendix D • Terminal Blocks and Connectors Terminal Description From (internal) To (external) Comments J11-2, RS-485 RS-485 LAN ground LAN ground LAN connector Direct ground connection J11-1, RS-485 RS-485 LAN Cable shield LAN connector cable shield Not used J15-1, supervisory TDM pulse-, input link connector Isolated RS-422...

  • Page 273: Figure D-3 - Wiring Of Rs-485 Link Cable Between Two Or More H201Ci-C's Or

    Hydran 201Ci-1 One-Channel Controller Table D-12 - SW1 Voltage Selector for the Hydran 201Ci-1 Voltage Selector Voltage Range Comment 115 V 90–132 Vac, 47–63 Hz 130-W maximum heating @ 264 Vac 230 V 180–264 Vac, 47–63 Hz The voltage selector is factory-selected and configured as per user requirements. Table D-13 - J10 DB-9 Male RS-232 Connector for the Hydran 201Ci-1 Terminal Name...
  • Page 274 Appendix D • Terminal Blocks and Connectors Note: The cable shield must be connected to the enclosure ground at only one end. D-12 Rev. 6, March 2011 Part 17997...
  • Page 275 Appendix E Hydran 201Ti’s History File Messages This Appendix complements Section 4.5.1 on page 4-12. The messages are sorted in alpha- betical order: Event Message Description AnalogMode chg Modification of the analog output’s operation mode Batt.Alr Ack Battery voltage fail alarm has been acknowledged BattAlr L chg Modification of the Low battery voltage alarm’s set point BattAlr L OFF...
  • Page 276 Appendix E • Hydran 201Ti’s History File Messages DayAlr L chg Modification of the Low daily trend alarm’s set point DayAlr L OFF Low daily trend alarm turned off DayAlr L ON Low daily trend alarm turned on DayAlr LL chg Modification of the Low-Low daily trend alarm’s set point DayAlr LL OFF Low-Low daily trend alarm turned off...
  • Page 277 HourAlr HH OFF Hourly trend High-High alarm turned off HourAlr HH ON Hourly trend High-High alarm turned on HourAlr L chg Modification of the hourly trend Low alarm’s set point HourAlr L OFF Hourly trend Low alarm turned off HourAlr L ON Hourly trend Low alarm turned on HourAlr LL chg Modification of the hourly trend Low-Low alarm’s set point...
  • Page 278 Appendix E • Hydran 201Ti’s History File Messages Set-up Lost ON Setup lost alarm turned on Soft WatchDog Reset of H201Ti induced by the software watchdog Sp Span chg Modification of the sensor temperature set point’s range STempAlr Ack Sensor temperature fail alarm has been acknowledged STempAlr H chg Modification of the sensor temperature High alarm’s set point STempAlr H ON...

  • Page 279: Table F-1 - Default Values Of The Parameters

    Appendix F Default Values of the Parameters Table F-1 on page F-1 presents the default values of the adjustable parameters after the battery has been disconnected or after the Hydran 201Ti’s embedded software has been upgraded. Table F-1 - Default Values of the Parameters Category Parameter Unit...
  • Page 280 Appendix F • Default Values of the Parameters Category Parameter Unit Value Status Desired temperature °C Modulation amplitude °C Period A Minutes Low-Low alarm °C Enabled Temperature Low alarm °C Enabled High alarm °C Enabled High-High alarm °C Enabled Alarms delay Minutes Low-Low alarm Volt...
  • Page 281 Category Parameter Unit Value Status Gas High Normal Gas High-High Normal Relays/Analog SysOK Normal Analog output Normal TDM pulse output Normal Low-Low gas level Disabled Low gas level Disabled Low-Low hourly trend Disabled Low hourly trend Disabled Low-Low daily trend Disabled Low daily trend Disabled...
  • Page 282 Appendix F • Default Values of the Parameters PAGE LEFT INTENTIONALLY BLANK Rev. 6, March 2011 Part 17997...
  • Page 283 Appendix G Unit Conversions In a current loop, any length of cable and number of devices can be connected in series provided that the following conditions are met: • All devices have floating differential inputs (both leads of signal input are ungrounded). •...
  • Page 284 Appendix G • Unit Conversions PAGE LEFT INTENTIONALLY BLANK Rev. 6, March 2011 Part 17997...
  • Page 285 Appendix H Extracting an Oil Sample Proceed as follows to sample the oil from the transformer (see Figure H-1 on page H-2): Remove the Hydran 201Ti’s aluminum cover. Open the Luer stopcock valve of the glass syringe and ensure the syringe is free of air. Insert and adjust the tip of the syringe valve into the sensor’s sampling port.
  • Page 286 Appendix H • Extracting an Oil Sample Figure H-1 - Extracting an Oil Sample From the Hydran 201 Sensor’s Sampling Port Using a Glass Syringe and a 5/32-In Allen Key Rev. 6, March 2011 Part 17997...
  • Page 287 Appendix I Glossary A: Ampere ac: Alternating Current ACK: ACKnowledge A/D: Analog-to-Digital converter. An electronic device, often an integrated circuit, that converts the value of a continuous electrical quantity, such as voltage or current, into its digital equivalent; all possible values of the quantity are then represented by a finite set of discrete values.
  • Page 288 Appendix I • Glossary ASTM: American Society for Testing and Materials (United States) AWG: American Wire Gauge (United States) bps: Bit Per Second CD-ROM: Compact Disc - Read-Only Memory CE: European Conformity : Methane : Acetylene : Ethylene : Ethane Channel: Path along which data passes in the form of electrical signals CO: Carbon monOxide : Carbon diOxide...
  • Page 289 Daisy Chain: Parallel connection from one Hydran 201Ci Controller to another using an RS-485 link cable dc: Direct Current DCS: Distributed Control System DGA: Dissolved Gas Analysis Diagnostic: Identification of specific malfunctions of an electrical apparatus Digital Output: Output that provides a digital signal derived from the digital information within the instrument Digital Signal: Electronic signal that can only represent discrete numbers (as opposed to analog signal)
  • Page 290 Gas Level: Composite value of four dissolved gases in transformer oil, measured by the Hydran 201 sensor GE: General Electric GND: GrouND (earth), a common reference point in an electric or electronic circuit GUI: Graphical User Interface, the graphical layout designed to enable user interaction with the Hydran 201Ti.
  • Page 291 History File: Either one of four distinct groups of data (Short Term, Long Term, Events and Service) that are recorded automatically and/or periodically and stored in the Hydran 201Ti’s memory HMI: Human/Machine Interface Host Computer: IBM PC (or compatible) connected remotely to a Hydran 201i System and running the Hydran Host software Hourly Trend: Variation of gas level during an adjustable period of time calculated in hours...
  • Page 292 Appendix I • Glossary Hydran Host: Microsoft Windows software that communicates, through an RS-232 serial communication link or a modem, with one or several Hydran 201Ti’s using the host computer. It allows a user to set operational parameters, survey alarm status, etc. Hz: HertZ, a unit of frequency equal to a cycle per second ID: IDentification IEC: International Electrotechnical Commission...
  • Page 293 LED: Light-Emitting Diode LL or Lo-Lo: Low-Low alarm Local Network: Daisy chain of Hydran 201Ci Controllers connected together using an RS-485 link in order to monitor Hydran 201Ti’s locally or remotely (via modem) using the Hydran Host software Local Site: User location where the data of the remote site is being analyzed mA: MilliAmpere mAdc: MilliAmpere Direct Current Main Menu: Menu of the Hydran 201Ti’s embedded software that gives access to the most...
  • Page 294 Appendix I • Glossary protection against corrosion, windblown dust and rain, splashing water, hose directed water, and damage from external ice formation. Network: Group of interrelated or interconnected nodes NO: Normally Open NPT: National Pipe Thread (United States) Null Modem: A special connection between two computers that makes them think they are hooked up to a modem, so that the two computers can communicate with each other : Oxygen Oil Sample: Small quantity of oil, representative of the oil contained in the transformer...
  • Page 295 Real-Time: Pertaining to a system or operating mode under which computation is performed during the actual time when an external process occurs, instead of being accumulated and processed at a later time. The computation results can therefore be used to control, monitor, or respond in a timely manner to the external process. Remote: A connection using modems between a Hydran 201i System and a host computer through a public or private telephone system Remote Site: Location of the Hydran 201Ti...
  • Page 296 Appendix I • Glossary SCADA: Supervisory Control And Data Acquisition, identifying the numerous devices (control panel, alarm panel, retransmission unit, display, terminal, data recorder, external detection device, etc.) on which can be connected the components of the Hydran 201i System SH: Cable SHield S/N: Serial Number SP: Set Point...
  • Page 297 User Interface: The means (display, keypad, push-buttons, etc.) used to achieve commu- nication between the user and a Hydran 201i System µV: Microvolt V: Volt VA: Volt-Ampere Vac: Volt Alternating Current Vdc: Volt Direct Current VDE: Verein Deutscher Elektrotechniker, a german standards institute V-I: Voltage to current Vibration-Absorbing Rubber Pad: Device used to protect a Hydran 201Ci Controller against vibrations...
  • Page 298 Appendix I • Glossary PAGE LEFT INTENTIONALLY BLANK I-12 Rev. 6, March 2011 Part 17997...
  • Page 300 GE Energy Services Digital Energy 179 Brunswick Blvd. Pointe-Claire QC H9R 5N2 Canada T +1 514 694 3637 F +1 514 694 9245 transformermonitoring@ge.com www.ge.com/energy Energy Services Digital Energy Customer Service Center (24 hours a day, 365 days a year):...

Table of Contents