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SMC Networks PTE-50-CET Instruction Manual

Three phase relay test set
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INSTRUCTIONS MANUAL
PTE-50-CET
THREE PHASE RELAY TEST SET
REFERENCE: FAGVMV02
EDITION: 5/11/99
VERSION: 2

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  • Page 1 INSTRUCTIONS MANUAL PTE-50-CET THREE PHASE RELAY TEST SET REFERENCE: FAGVMV02 EDITION: 5/11/99 VERSION: 2...
  • Page 2 “The priority of EUROSMC, S.A. is to obtain the highest standards and quality in all our products, serving to satisfy the expectations and necessities of our clients”.

  • Page 3: Table Of Contents

    PTE-50-CET INDEX PTE-50-CET CONTENTS LIST ........................5 1. INTRODUCTION ............................6 1.1. MAIN FUNCTIONAL FEATURES ....................6 1.2. APPLICATIONS..........................7 2. OPERATIONAL PRINCIPLES .........................9 2.1. GENERAL............................9 2.2. FRONT PANEL CONTROLS ......................10 2.3. INTELLIGENT GENERATOR MODULE ..................11 2.4. POWER SUPPLY ...........................11 3. CONTROLS DESCRIPTION........................12 3.1. MAIN SUPPLY SECTION.......................12 3.1.1.
  • Page 4 4.3.3. USE OF EXTERNAL REFERENCE INPUT.................38 4.4. GENERAL CONTROL SECTION....................38 4.4.1. SIGNAL MONITOR ......................38 4.5. COMMUNICATION IN BUS-PTE ....................39 4.5.1. EVENTS IN BUS-PTE......................39 4.5.2. EVENT TRANSMITTED BY A PTE-50-CET................39 4.6. SPECIAL FUNCTIONS........................40 4.6.1. AUTO OFF ...........................40 4.6.2. FAILURES DETECTION ......................40 Sheet 3...
  • Page 5 6. TECHNICAL ASSISTANCE, AFTER SALES SERVICE AND WARRANTY .........45 6.1. WARRANTY ...........................45 6.2. AFTER SALES SUPPORT......................45 6.3. OTHER EUROSMC PRODUCTS ....................45 FIGURES INDEX Figure 1: PTE-50-CET Front Panel .......................9 Figure 2: Functional Modules ........................9 Figure 3: Front Module ..........................10 Figure 4: Intelligent Generator Module......................11 Figure 5: Main Supply..........................12 Figure 6: Timer Section ..........................13...

  • Page 6: Pte-50-Cet Contents List

    • 12 Interconnection cables 2.5 mm section (6 reds and 6 blacks). • 1 Interconnection cable between PC and PTE-50-CET unit, by RS-232. • 1 PTE BUS interconnection cable for two units. • 1 Interconnection cable for external timer output PTE-50-CET type BNC.

  • Page 7: Introduction

    PTE-50-CET 1. INTRODUCTION The PTE-50-CET is designed as a Portable Three Phase Unit that allows the user to test, as stand alone unit or in combination with others, all type of protective relays. Extremely compact and rugged, this unit incorporates the latest in the modern microprocessor technology to achieve unbeatable output characteristics in terms of power, accuracy, low distortion, and dynamic capability.

  • Page 8: Applications

    PTE-50-CET d) EXTERNAL REFERENCES INPUT Can be synchronized, in terms of frequency and phase with any external signal, from 0.1 to 25 A in current, and from 5 to 300 V in voltage. e) SIGNAL MONITOR The unit has a Signal Monitor input that can work with dry contacts or with voltage signals from 5 to 250 V ac or dc.
  • Page 9 • In general all types of relays which require 3 voltages and 3 currents to function correctly. c) MISCELLANEOUS Due to its good characteristics of accuracy and stability, the PTE-50-CET can test transducers, energy meters and measuring instruments can be tested as well, in the following range: •...

  • Page 10: Operational Principles

    2. OPERATIONAL PRINCIPLES 2.1. GENERAL In this section a general overview of the operational basic principles on which the PTE-50-CET is based, are given in this section. An understanding of these principles should help in order to find new applications, maintenance, etc.

  • Page 11: Front Panel Controls

    PTE-50-CET 2.2. FRONT PANEL CONTROLS Allows the user to communicate with the power output section of the unit in a manual way, or using a software program. To achieve this, it has the following sections: 1. Displays and LED indicators: indicate the various selections made by the operator and the status of the unit.

  • Page 12: Intelligent Generator Module

    As in all off the systems that produce an output which is absolutely independent of the main supply, the PTE-50-CET needs to have a D.C. power supply, that converts the AC input of the main supply, to a DC that supplies the power amplifiers. This is achieved by using a combination of switching and linear DC power supplies.

  • Page 13: Controls Description

    This section describes one by one and in detail all of the controls, indicators, displays, and connection taps on the front panel of the PTE-50-CET. As well as the functions, marked indications and where they are located will be shown in the figures.

  • Page 14: Fixed 110 V C.a. Voltage Supply

    PTE-50-CET • Power supply fuse holder: to reach these fuses, the cover must be lifted as indicated in the drawing. There are two fuses: the lower one is the active fuse and the one located above is the spare fuse. The fuses are standard type, 5 x 20 mm, 6.3 A..

  • Page 15: Optic Indicators And Displays

    PTE-50-CET This key works in a sequential way, each time this key is pressed, the reading in Display 1 located on the left-hand side will change. This will display seconds or the number of frequency cycles in alternating current. Each time this key is pressed the timer will reset to 0, allowing the operator to perform the next test.

  • Page 16: Timer Signal Indicators

    PTE-50-CET The MODE key exclusively controls them. c) PULSE Mode indicators These 2 LEDs indicate the Timer is in the PULSE MEASUREMENT MODE, and whether the pulse is positive or negative. These pulses are measured through the Signal Monitor taps.

  • Page 17: Power Outputs

    PTE-50-CET 3.3. POWER OUTPUTS The equipment has three output and phase channels. In each one of them can be selected the desired output level as well as the phase angle. This section is situated in the central section of the unit, and is clearly identified.

  • Page 18: Level Section

    PTE-50-CET 3.3.1. LEVEL SECTION Figure 8: Level Output Selection 3.3.1.1. CONTROL KNOBS AND PRESS KEYS a) Selecting the digit to be used This key works in a sequential way and it is associated with 3 LEDs located above this press key. This allows the operator to select the output in a fine or course regulation, by changing the digit to be adjusted.
  • Page 19 2 seconds this function if both sections becomes synchronized. To cancel you must repeat this process. f) MASTER/SLAVE: regulation modes The following press keys are installed on the PTE-50-CET to achieve regulation capability in terms of three-phase regulation, fault combinations, like a phase to phase, three-phase, etc.

  • Page 20: Optical Indicators And Displays

    PTE-50-CET • If the output range is changed in CH1, it changes immediately in the SLAVE channels. • Any action made in the output control ON/OFF in CH1 occurs immediately in the SLAVE channels. • Any action made in the Step to 2 Value control in CH1 happens immediately in the SLAVE channel.

  • Page 21: Taps: Output Taps

    PTE-50-CET d) Digit selection indicator These three, 3 mm LEDs (red), indicate the digit selection for regulation. Only one will be lit, indicating the digit above it to be regulated. e) Level selection display The display is made up of 4 digits of 7 segments, red in color and 0.3 inches in height, which shows the...

  • Page 22: Phase Section

    PTE-50-CET 3.3.2. PHASE SECTION This is situated to the right of the unit and is perfectly identified. It contains all the control knobs, keys, and LEDs necessary for the operator to use the functions in this section. Figure 9: Phase Angle Selection 3.3.2.1.
  • Page 23 PTE-50-CET c) 2 value selection When this key is pressed it allows the selection of a 2 phase angle and it is shown in the display. This selection does not cancel the angle already selected in the output at the moment. To distinguish the actual angle from...

  • Page 24: Optical Indicators And Displays

    There are two, 3 mm LEDs (red) which indicate the status of the two alarms for the output of PTE-50-CET. They are as follows: 1. Ovl: this LED indicates an overload in the output, whether it is current or voltage. When it is lit, the output will cut off and the display will begin to flash for 5 seconds.

  • Page 25: Channels In Parallel

    If you select the 25 A tap (Booster ON), on PTE-50-CET, you can inject this current to the relay, because 3V< 4V (maximum voltage drop). Instead, if we select the 50 A tap, you can’t get sufficient voltage (3V >...

  • Page 26: Figure 10: Channels Parallel Connection

    PTE-50-CET To − current To + current input in relay input in relay Channel 3 Channel 1 Channel 2 Figure 10: Channels Parallel Connection Remember that the current outputs, to be added correctly, must have the same phase angle, for...

  • Page 27: Example

    MAXIMUM LOAD MAXIMUM OUTPUT OUTPUT If we connect a relay with higher impedance than 0.071 Ω (considering PTE-50-CET as an ideal generator), it will be an overload for the PTE-50-CET. The equipment will stop the injection, indicating the Overload Alarm.

  • Page 28: Control Keys

    Each time this key is pressed a different reference is selected. When the desired reference is selected, it is with the objective that, other units can be synchronized to the PTE-50-CET if required. Depending on the Mode selected, the information is sent or not sent to the PTE-BUS.

  • Page 29: Harmonics Selection

    PTE-50-CET There are 2 distinct function modes: INDEPENDENT MODE: This mode starts by defect when the equipment is turned on and allows synchronizing a reference in 3 ways “Line”, “Bus”, and “Ext”. The press key works in a sequential way, each time the key is pressed each passes to one the references mentioned.

  • Page 30: Synchronizing Reference Indicators

    3.5.3. CONNECTORS AND FUSES 3.5.3.1. Voltage supply PTE-50-CET has channel fuses that protects the Power Module of each channel. These fuses can be broken in different circumstances (like high transients in the outputs). When this happens, one of the power outputs half-cycle is lost. That’s why the values you check in you ammeter differ from the ones displayed in the equipment.

  • Page 31: Monitor Input Taps

    PTE-50-CET To repair it you just must do the following: 1. Disconnect the main supply. 2. Open carefully the Front Panel: extract the six screws and take care of no disconnecting any other cables inside the equipment. 3. The channel fuses are located under the Main Voltage Supply Section: +28 V −28 V...

  • Page 32: Auxiliary Output To Start An External Timer

    PTE-50-CET Figure 13: Signal Monitor 3.5.3.3. Auxiliary output to start an external timer This is a BNC connector that delivers a “close contact” signal of 20 ms duration, with the main objective to start an external timer. This output will be active each time one of the following occurs: •...

  • Page 33: Functions: Use And Descriptions

    4. FUNCTIONS: USE AND DESCRIPTIONS Throughout this section a detailed description of the use and procedures for the PTE-50-CET will be given. This unit has been designed to be used as a portable three-phase unit to test any kind of relays, as a stand-alone unit or interconnected to other auxiliary units.

  • Page 34: Level Section: Power Output

    4.2.2. OUTPUT MODE SELECTION (I/V) As mentioned before, the PTE-50-CET can be used as a current or voltage source. When the unit is turned on it will be in the current mode. The voltage output is achieved in the following way: Press the TAP I/V key for more than 2 seconds.

  • Page 35: Output Range Selection

    PTE-50-CET To return to the current mode press the same key again for more than 2 seconds. 4.2.3. OUTPUT RANGE SELECTION The following output ranges are available: • Current mode: 0.33 / 8 / 25 / 50 A. • Voltage mode: 6.25 / 150 V.

  • Page 36: Output Control: On/Off And Alarms

    4.2.7. DYNAMIC TESTS: STEP TO 2 VALUE The PTE-50-CET allows the operator to make dynamic tests, by allowing jumps (steps) from one value to another, whether it is from higher to lower or vice versa. This is very useful, for example, when performing dynamic characteristic tests.

  • Page 37: Phase Angle Selection

    4.3. PHASE ANGLE SELECTION This section describes in detail the use of the phase shifter incorporated in the PTE-50-CET, as well as the External Phase and Frequency Reference. The display in this section is indicated in degrees (0-359.9) between the output and the reference choose (Freq.

  • Page 38: Figure 15: Phase Angle Selection (American)

    4.3.2. DYNAMIC TESTS: STEP TO 2 VALUE The PTE-50-CET allows the operator to make dynamic tests, by allowing jumps (steps) from one value to another, whether it is from higher to lower or vice versa. This is very useful, for example, when testing out-of-step generator protective relays.

  • Page 39: Use Of External Reference Input

    PTE-50-CET When this key is pressed again, the step will be the opposite, that is from the 2 value to the 1 one. At the same time, there is a signal sent to Start Chrono output. The LED will go off indicating the output is at the 1 value.

  • Page 40: Communication In Bus-Pte

    In any case, the documentation supplied with a PTE equipment, gives information about the particular events transmitted to the BUS-PTE by the particular unit. 4.5.2. EVENT TRANSMITTED BY A PTE-50-CET A PTE-50-CET sends to the BUS-PTE the following events: a) Positive events: • Output ON.

  • Page 41: Special Functions

    In case this function is selected, the output channels ON will be automatically turned off when the Signal Monitor is activated (For instance: relay trip). PTE-50-CET has this function selected by default. To activate or deactivate it, you must do the following: 1.
  • Page 42 PTE-50-CET ABCD⇒ Level Display EFGH⇒ Phase Display Always 0 No error No error No error No error No error No error No error LINE failure RadF temp. +12VA high +5V high +12V high +28V high 6'25 fuse Int temp. PllClk failure...

  • Page 43: Specifications

    PTE-50-CET 5. SPECIFICATIONS PTE-50-CET contains the following outputs and features: • Three independent power outputs up to 50 A in current mode and 150 V in voltage mode, with angle phase regulation between 0º and 360º. • Timer, 1 ms resolution, with different options to start and stop the time measurement.

  • Page 44: Internal Timer

    PTE-50-CET • This feature exists for amplitudes and phase angles, independent or linked. c) One of the output channels is available to be configured as Master of the other two, that can be configured as Slave or Independent. Every change made in the Master channel will be effective in the Slave channels, at all levels.

  • Page 45: External Reference Input

    PTE-50-CET 5.4. EXTERNAL REFERENCE INPUT The unit has available an external reference input, capable to receive voltage or current signals, from any external source, in the following ranges: • Voltage input: between 5 and 300 V. • Current input: between 0.1 and 25 A.

  • Page 46: Technical Assistance, After Sales Service And Warranty

    PTE-50-CET 6. TECHNICAL ASSISTANCE, AFTER SALES SERVICE AND WARRANTY 6.1. WARRANTY Our warranty expresses the confidence we have in our products, based on the reliability and functions that are expected by our clients. The warranty covers the repairs and/or replacements of components, which are faulty without costs.

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