GEK-105593C TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS 1. GENERAL DESCRIPTION AND APPLICATION ..................5 1.1. G ..........................5 ENERAL ESCRIPTION 2. OPERATING PRINCIPLES .......................... 7 2.1. P ..........................7 ROTECTION UNCTIONS 2.1.1. Overcurrent Units ..........................7 2.1.2.
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GEK-105593C 6.7. R ............................50 ELAY ETTING 6.8. I ............................... 50 NPUTS 6.8.1. Digital Inputs............................50 6.8.2. Synchronization Input IRIG-B......................50 6.9. O ..............................50 UTPUTS 6.10. C ......................51 HECKING ELAY EASUREMENTS 6.10.1. Current and Voltage Measurement ....................51 6.10.2.
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GEK-105593C LIST OF FIGURES LIST OF FIGURES LIST OF FIGURES LIST OF FIGURES Figure 1. Panel drilling dimensions for 19’’ rack models................ 84 Figure 2. Panel drilling dimensions for 1/2 rack models ................ 85 Figure 3. INVERSE Characteristic Operating Curve ................86 Figure 4.
GEK-105593C 1. 1. 1. 1. GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND GENERAL DESCRIPTION AND APPLICATION LICATION LICATION LICATION 1.1. GENERAL DESCRIPTION The SMOR system is a microprocessor based multifunction protection, control and measurement unit. The SMOR uses a set of algorithms to create a general purpose protection and monitoring unit for power systems.
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Man machine interface (MMI) consisting of a keyboard (20 key) and an alphanumerical display (2 lines x 16 char.). • Windows™ based GE-INTRO configuration software and GE-LOCAL communication software. Both programs are part of the GE-NESIS (General Electric NEtwork Substation Integrated System).
GEK-105593C 2. 2. 2. 2. OPERATING PRINCIPLES OPERATING PRINCIPLES OPERATING PRINCIPLES OPERATING PRINCIPLES 2.1. PROTECTION FUNCTIONS 2.1.1. OVERCURRENT UNITS SMOR system includes the following overcurrent units, all of which can be set and used independently: • Phase overcurrent (for three phases): Time delayed 51 PT (Instantaneous, definite or inverse time) Instantaneous, High level...
GEK-105593C To protect against loss of polarization voltage, the system includes adjustable fuse-failure logic. This logic allows to either block the operation of the units or to convert the directional units into non-directional. The selection is done through a setting. The fuse failure function operates on two different conditions (OR logic): - Operation of undervoltage detectors (adjusted at 3.5 volts) - Activation of a digital input connected to the voltage MCB.
16 signals; there are 10 groups; It is a 10 x 16 matrix; the final group corresponds to the 16 AND gates definable using the programmable logic of GE-INTRO software.
GEK-105593C COLUMN LED Nº LEFT RIGHT Nº Phase A trip Frequency trip (81) Phase B trip Recloser out of service Phase C trip Reclose in progress Ground trip Recloser in lockout status Timed Overcurrent trip Circuit Breaker Open Instantaneous Overcurrent trip Coil supervision alarm Negative sequence trip Unit alarm...
The value I 2 t is accumulated and stored independently for each phase. These values can be accessed either by local MMI or by GE-LOCAL communication software. The function has an "Integration Time Selector" setting which can be used to assign a fixed opening time (given by another "Integration Time"...
GEK-105593C 2.2.6. PHASE ROTATION SEQUENCE SELECTION The SMOR system works correctly with any phase sequence selection ABC or CBA without the need to change the wiring of the external transformers, since there is a setting which allows the selection of the phase rotation sequence.
GEK-105593C 2.3. ANALYSIS FUNCTIONS. The SMOR system includes an event recorder and an oscillographic recorder with 1 msec. time tag resolution. So as not to lose the date and time setting or the oscillographic recorder information, the unit uses a capacitor as backup for the internal clock and register memory. This allows the information to be kept for at least 24 hours from the moment the power supply is lost.
GEK-105593C Index State Parallel EEPROM alarm Serial EEPROM alarm Out of service Default General settings Default Table 1 settings Default Table 2 settings Default Table 3 settings Tripping not permitted Current with open breaker 52 maintenance alarm Coil 1 continuity failure Coil 1 DC supply failure Coil 2 continuity failure Coil 2 DC supply failure...
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The oscillography records are retrieved and converted into a COMTRADE IEEE standard format file using the GE-LOCAL communications program. They can be visualized using the GE-OSC program, or any other program that accepts the COMTRADE IEEE C37.111-1991 International Standard format or ASCII files (for...
2.4. CONTROL 2.4.1. ASSOCIATED BREAKER COMMAND Using a local interface (MMI) or using a personal computer connected to the serial port with the GE-LOCAL communications software, it is possible to open or close the line breaker using the tripping or closing contacts of the SMOR unit.
GEK-105593C 2.4.3. RECLOSER The SMOR system recloser allows up to 4 attempts to reclose the line breaker. For each of these attempts it is possible to set independently the time that should elapse before the reclosing order is issued. In addition, it is possible to set which functions can initiate the recloser, and, after a given reclosing, which functions can trip the breaker again.
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GEK-105593C Recloser logic. Figure 5, which shows the states diagram of the recloser, will help to understand this section. For those who are not familiar with this type of representation the following paragraphs give a summary of how a states diagram works.
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GEK-105593C FIGURE 5 RECLOSER STATES DIAGRAM (226B2200H1) (SUMMARISED)
"TABLE SELECTION-1" which allow up to 4 combinations from 0 to 3. To do this it is necessary to configure (using GE-INTRO software) two inputs to have these meanings. For applications which require less tables (up to 2) it is possible to use only one input.
The SMOR system has 6 digital inputs (two groups of 3 inputs with one common in each group). The inputs can be configured by the user by means of the GE-INTRO configuration program. Using the optional expansion board it is possible to increase the number of inputs up to a total of 12 (4 groups of 3 inputs with one common in each group.
The model with optional expansion board has 4 more outputs, which are configurable and electrically separate. (See external connections in figure 7) The outputs are configured using the GE-INTRO configuration software. The technical characteristics of the outputs are shown in section 4.
Gate 1 (PORT 1 and PORT 2 connectors) and 2 (PORT 3 connector) are independent and the unit can serve them simultaneously. The communications protocol is the same as that used for the rest of the GE digital protection systems and requires the use of the GE-LOCAL software. The instruction book for this program, which facilitates dialogue with the relay, is supplied with the unit.
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GEK-105593C TABLE 4. INTERNAL PROTECTION STATES MATRIX (INTERNAL SIGNALS AVAILABLE FOR OUTPUTS AND LED CONFIGURATION BY USING OR, AND AND NOT GATES.) Index STATE Program initiate Settings change Write counters Configuration change External trigger Communications trigger Reclose command 79 block command 79 unblock command Open command Close command...
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GEK-105593C Index STATE 51PT a Pickup 51PT b Pickup 51PT c Pickup 50PH a Pickup 50PH b Pickup 50PH c Pickup 50PL a Pickup 50PL b Pickup 50PL c Pickup 27P ab Pickup 27P bc Pickup 27P ca Pickup 59P ab Pickup 59P bc Pickup 59P ca Pickup 51PT Trip...
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GEK-105593C Index STATE 79 out of service Reclose in progress Reclose initiate External reclose initiate Reclose inhibit Last trip 79 Ready Lockout: Failed to open Lockout: Repetitive tripping Lockout: No conditions to reclose Lockout: Faulty recloser Global lockout Recloser block Parallel EEPROM alarm Serial EEPROM alarm Out of service...
• Connect the cable between the relay (or modem) and the serial port of your computer. • Run the GE-LOCAL software. For more details on the installation and use of the GE-LOCAL software see the GE-LOCAL instruction book. • Make sure that the program configuration communication parameters coincide with those of the SMOR unit.
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GEK-105593C removed from the keyboard/display and communications software. To carry out these configurations the GE- INTRO configuration software must be run. The following settings are common to all tables: TABLE 5. COMMON SETTINGS TO ALL TABLES Description Limits Default Interval...
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GEK-105593C TABLE 6. INDEPENDENT SETTINGS FOR EACH TABLE Independent for each table Limits Default Interval 51 PT Function 51 / 67 P Pick-up 1.00 - 12.00 A 2.00 A 0.01 A Curve In/M Inv /E Inv /Def. time Time Dial 0.05 - 1.00 1.00 0.01...
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GEK-105593C Independent for each table Limits Default Interval 50 NH directional Perm. / Not Perm Not Perm. 50 NL directional Perm. / Not Perm Not Perm. Characteristic Angle - Phase -90º - +90º 45º 1º Characteristic Angle - Ground -90º - +90º -45º...
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The names used to describe the settings both for the local MMI and the communications program is limited by the space available for the identifying texts. For reference, the following is a table of the names used for each setting in the local display and the GE-LOCAL software.
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GEK-105593C SETTINGS COMMON TO ALL TABLES: TABLE 7 Description MMI/GE-LOCAL General Settings Group GENERAL SETTINGS Relay status RELAY STATUS Identification. IDENTIFICAT: Frequency FREQUENCY Rated Voltage (ph-ph) NOMINAL VOLTAGE CT Phase Ratio PHASE CT RATIO CT Ground Ratio GROUND CT RATIO...
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GEK-105593C Description MMI/GE-LOCAL Trip 59 NL 59NL TRIP YFunction Permission Group FUNCTION PERMIT 51 PT Function Permission 51PT FUNCTION 51 NT Function Permission 51NT FUNCTION 50 PH Function Permission 50PH FUNCTION 50 PL Function Permission 50PL FUNCTION 50 NH Function Permission...
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The independent settings for each table (identified on the local MMI as T1, T2, T3 in the second line of the heading in each settings group) are: TABLE 8 Description MMI/GE-LOCAL 51 PT Function 51PT FUNCTION 51 / 67 P Pick-up...
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GEK-105593C Description MMI/GE-LOCAL Recloser Permission 79 STATUS Number of Cycles NUMBER OF CYCLES Reset Time RESET TIME Hold mode Selection HOLD MODE Hold mode Time HOLD TIMER 1st Reclose Time 1s RECLOSE DELAY 2nd Reclose Time 2n RECLOSE DELAY 3rd Reclose Time...
GEK-105593C 4.2. TECHNICAL CHARACTERISTICS MECHANICAL • Metal casing 19 inches rack case 2 units high • IP51 Grade Protection (as per IEC 529) • Local MMI with LCD screen consisting of 2 rows of 16 characters and 20 key keyboard •...
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SMA type connector STANDARDS The SMOR system complies with the following standards, which include the GE insulation and electromagnetic compatibility standard and the standards required by Community Directive 89/336 for the EC market, in line with European standards. It also complies with the European directive requirements for low voltage, and the environmental and operating requirements established in ANSI standards C37.90, IEC 255-...
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GEK-105593C •Fast transients IEC 255-22-4 EN 61000-4-4 •Magnetic fields at industrial frequency EN 61000-4-8 30 Av/m •RF emission EN 55011...
GEK-105593C 5. 5. 5. 5. HARDWARE DESCRIPTION HARDWARE DESCRIPTION HARDWARE DESCRIPTION HARDWARE DESCRIPTION CAUTION The SMOR contains electronic components that could be damaged by electrostatic discharge if those currents flow through certain terminals of the components. The main source of electrostatic discharge currents is the human body, especially in conditions of low humidity, carpeted floors and isolating shoes.
GEK-105593C The blocks of terminals situated on the rear of the case are identified with the letters A, B, C and D, and optionally E and F, as shown in figure 9. In addition, each terminal is identified with a number. The communications connectors are situated on left-hand side of the front and on the right-hand side of the rear of the case.
On the front of the relay there is a set of 17 LEDs, one of which is fixed and indicates the operating status of the unit, and the rest are user-configurable by means of GE-INTO software. The button situated on the front can be used to check the status of the LEDs and to reset the trip indicators.
GEK-105593C 6. 6. 6. 6. ACCEPTANCE TESTS ACCEPTANCE TESTS ACCEPTANCE TESTS ACCEPTANCE TESTS There follows a list of tests which can be used to check that the unit is fully operational. For a more limited test for the reception of units we recommend carrying out only the tests listed in sections: 6.2, 6.5, 6.8, 6.9, 6.10, 6.11 and 6.12.
GEK-105593C 6.2. VISUAL INSPECTION Check that the relay has not suffered any kind of damage due to transport and handling. Check that all the screws are sufficiently tight and that the terminal strips have not been damaged in any way. Check that the information on the characteristics plate coincide with those of the ordered model.
GEK-105593C 6.4. INDICATORS Check that pressing the TARGET RESET button with the relay connected to a power supply, all the indicators light up. 6.5. POWER SUPPLY • The relay is connected to a power supply at nominal minimum voltage. Enable the following functions: 51P, 51N, 50PH, 50PL, 59P, 81O and 46, and set them to their minimum pick-up value and time delays.
GEK-105593C 6.6. COMMUNICATIONS The test is to check that the 3 connectors in the relay allow communication with the relay. To do this it is necessary to use a computer and a connector suitable to establish the connections between PC and relay which are shown in figure 8.
GEK-105593C • Set the Failure to close timer to the maximum. Perform a closing command and check that during the failure to open time the Reclose-1 (C1-D1) and Reclose-2 (C2-D2) output contacts are closed. • Enable only 51P function, and set it to its minimum value. Inject a current to phase A equal to 2xIn(phase) to trip the relay.
GEK-105593C PHASE CURRENTS • Inject the following current values into the relay: I (Amp) Angle 0.1xIn 0.5xIn 1xIn 2xIn 0.1xIn 0.5xIn 1xIn 2xIn 0.1xIn 0.5xIn 1xIn 2xIn (In is the nominal or rated current for the relay phase current inputs, 5 or 1 Amp) •...
GEK-105593C 6.11.1. CHECKING RECLOSER CYCLE • After setting the relay, close the Breaker and wait 10 sec. After this time the recloser is ready to start the reclose cycle. • Force a 50 PL trip and check that relay recloses in 2.1 sec. •...
GEK-105593C • With 1.1 times the pick up current the relay should trip instantaneously in between 10 to 50 ms. • With 4 times the pick up current the relay should trip instantaneously in between 10 to 40 ms. • The test should be carried out for phases A, B and C.
GEK-105593C • Apply 5 times the pick up current and the relay should trip in 2.03 sec. Acceptable time range between 1.88 and 2.13 sec. EXTREMELY INVERSE CURVE • Set the relay as follows: 51PT Settings Group Curve EXTREMELY INVERSE Time Dial 0.05 •...
GEK-105593C • Apply 1.5 times the pick up current and the relay should trip in 16 sec. Acceptable time range between 13.91 and 18.82 sec. • Apply 5 times the pick up current and the relay should trip in 2.03 sec. Acceptable time range between 1.88 and 2.13 sec.
GEK-105593C PHASE A DIRECTIONAL TEST • Apply 4 times the pick up current at 0º on phase A. Positive is applied to terminal A1 and negative to terminal A2. • Apply 60 V at 0º on phase C. Positive is applied to terminal A7 and negative to terminal A8. •...
GEK-105593C • Set the relay as follows: Directionality Settings Group 51 PT Directional 51NT Directional 50PH Directional 50PL Directional 50NH Directional 50NL Directional Phase Angle 45º Ground Angle -45º V Loss Logic Permission • Apply 4 times the pick up current at 0º to the Ground current inputs. Positive is applied to terminal B3 and negative to terminal B4.
GEK-105593C • Apply 36 Vac on phase B, at a frequency of 54 Hz. The relay should not trip, due to the voltage supervision. 6.22. UNDERVOLTAGE UNIT (27) • Enable only 27P function and its related trip. • Set the relay as follows: 27/’59 Functions Settings Group 27P Pick up 10 V (ph-ph) (5.77 V ph-gnd)
GEK-105593C 27/’59 Functions Settings Group 59NH Pick up Time Delay 59NH 0.20 sec • Apply on phase A of the relay 2.7 Vac and check that the relay does not trip. • Apply 3.3 Vac and check that the relay trips. •...
GEK-105593C • Check on the relay that the number of opening operations is 2, and the number of accumulated amperes is between 5700 and 6400 kA s (exact value 6100) for In(phase) = 5 Amp. 6.27. COMMANDS. • The following tasks have to be carried out : 1.
E5, F6 and E6 will be E7, F8 and E8 respectively. The signal to be checked is "Coil 2 Continuity Failure" Table 11. Customer’s settings Description MMI/GE-LOCAL USER VALUES General Settings Group GENERAL SETTINGS Relay status...
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GEK-105593C Independent settings for each table Description MMI/GE-LOCAL USER VALUES 51 PT Function 51PT FUNCTION 51 / 67 P Pick-up 51/67 P PICKUP Curve CURVE Time Dial TIME DIAL Definite Time Setting DEFINITE TIME t 51 NT Function 51NT FUNCTION...
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GEK-105593C Description MMI/GE-LOCAL USER VALUES Reset Time RESET TIME Hold mode Selection HOLD MODE Hold mode Time HOLD TIMER 1st Reclose Time 1s RECLOSE DELAY 2nd Reclose Time 2n RECLOSE DELAY 3rd Reclose Time 3r RECLOSE DELAY 4th Reclose Time...
GEK-105593C 7. 7. 7. 7. INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE INSTALLATION AND MAINTENANCE 7.1. INSTALLATION The relay should be installed in a clean, dry and dust-free place, with no vibrations. It should also be well-lit to facilitate inspection and testing. The relay should be mounted on a vertical surface.
GEK-105593C 8. 8. 8. 8. KEYBOARD AND DISPLAY KEYBOARD AND DISPLAY KEYBOARD AND DISPLAY KEYBOARD AND DISPLAY The SMOR has a 20 key keyboard and a liquid crystal DISPLAY with 32 characters, divided into two rows of 16 each. The following diagram shows the appearance of the SMOR Keyboard: The keyboard program uses menus to access the different relay functions.
GEK-105593C UP / DOWN ARROW: Change options. The equivalent of a horizontal movement within a menu. When the required option appears on the screen it can be selected with the ENT key. LEFT / RIGHT ARROWS: Show the different possibilities of a given setting. It is not used for all settings. When the required option appears on the screen it can be selected with the ENT key.
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GEK-105593C Group Level 1 Description • 79 STATUS • Show the recloser status • PROTEC. STATUS • Show the status of the protection system (in / out of service) • ACTIVE TABLE • Show the active settings table # • STATUS 52 •...
GEK-105593C .2. SETTINGS GROUP This group allows the visualization and modification of the SMOR settings. It is accessed by pressing the SET key when the SMOR is in the initial screen. When the SET key is pressed the following message appears on the screen: VIEW PROTECTION SETTINGS...
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GEK-105593C Level 1 Level 2 Level 3 Valid range DEFINITE TIME t 0.00 - 100.00 s in steps of 0.01. 51NT 51/67P PICKUP 0.2 - 2.4 A in steps of FUNCTION TX 0.01. CURVE Inverse - Very inv.- Extrem. inv. - Definite t TIME DIAL 0.05 - 1.00 s in steps...
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GEK-105593C Level 1 Level 2 Level 3 Valid range • 59NL PICKUP • 3 - 100 V in steps of 1. • TIME DELAY 59NH • 0.03 - 100.00 s in steps of 0.01. • 51PT • Permitted - Not DIRECTIONAL SET.
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GEK-105593C The common settings are: - GENERAL SETTINGS - BREAKER SETTINGS - ACTIVE TABLE SET - OSCILLOS MASK - FUNCTION PERMIT The rest of the settings groups apply to each table independently. There are groups for each table, for example, RECLOSER T1, T2, T3, which are recloser settings for each of the possible tables. The steps to be taken in order to change any setting are as follows: 1.
GEK-105593C To make this change we will start from the rest screen and take the following steps: Pressed key Screen status Notes SMOR Start from the rest screen. GENERAL ELECTRIC VIEW PROTECTION Enter level 1 SETTINGS ↑ MODIFY PROTECTION Move through options in level 1 SETTINGS GENERAL Enter level 2...
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GEK-105593C SMOR GENERAL ELECTRIC STATUS Status. The SMOR allows you to view the status of certain internal values of the relay. From the status menu we press the ENT key. By pressing the UP arrow key we can move through the status menu and obtain the following information : Screen Possible values...
GEK-105593C Screen Possible values 59NH PICKUP YES - NO 59NL PICKUP YES - NO 79 STATUS IN /OUT OF SERVICE PROTEC. STATUS IN / OUT OF SERVICE ACTIVE TABLE 1:TABLE 1: 2:TABLE 2 3:TABLE 3 STATUS 52 OPEN - CLOSE DIRECTION A PERMISSION - BLOCK DIRECTION B...
GEK-105593C • Reset power maximeter • Open Breaker • Close Breaker Note that the command UNBLOCK RECLOSER only unblocks the recloser if it was blocked due to a previous block command, not due to other causes that block the recloser (system conditions, settings, inputs, etc.) 8.5.
The code is unique for all the SMOR relays and is not intended to be a password, but rather a simple safety measure to avoid accidental changes to the configuration. This code is 7169, chosen to coincide with the ASCII code for the initials GE. This is how to enter the configuration unit from the stand-by screen: SMOR...
GEK-105593C 4 AGUJEROS DE 7 0 PARA MONTAJE 4 HOLES OF 7 0 FOR DRILLING PERFORADO PARA MONTAJE DIMENSIONS FOR MOUNTING FIGURE 2. PANEL DRILLING DIMENSIONS FOR 1/2 RACK MODELS...
GEK-105593C D 11 D ISP AR O1 TRIP1 ALIMEN TA CIO N D ISP AR O2 POW ERSUPP L Y TRIP2 R EEN GANC H E1 R ECLOSE1 N O TA1 N O TE1 R EEN GANC H E2 N O TA1 N O TE1 R ECLOSE2 C 10...