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Basler BE1-25/79TR Instruction Manual

Low profile sync-check reclosing relay
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Publication: 9 2787 00 990
Revision: B
07/95

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  • Page 1 +05647%6+10/#07#. .19241(+.' 5;0%%*'%-4'%.15+0) 4'.#; $'64 Publication: 9 2787 00 990 Revision: B 07/95...
  • Page 2 INTRODUCTION This manual provides information concerning the operation of BE1- 25/79TR Sync-Check Reclosing Relays. To accomplish this, the following information is provided. > > General Information > > Functional Description > > Installation Information > > Calibration and Testing Procedures W A R N I N G ! To avoid personal injury or equipment damage, only qualified personnel should perform the procedures...
  • Page 3 CONFIDENTIAL USE, SUBJECT TO RETURN ON REQUEST, AND WITH THE MUTUAL UNDERSTANDING THAT IT WILL NOT BE USED IN ANY MANNER DETRIMENTAL TO THE INTEREST OF BASLER ELECTRIC COMPANY. It is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide data for every possible contingency regarding installation or operation.

  • Page 4: Table Of Contents

    CONTENTS Section 1 GENERAL INFORMATION Description ......... 1-1 Capabilities .
  • Page 5 CONTENTS - Continued CONTENTS Section 3 FUNCTIONAL DESCRIPTION - Continued Voltage Monitor ........3-7 Slip Frequency Difference .
  • Page 6 CONTENTS - Continued Section 5 TESTING - Continued Sync LB and LL Inhibit ......5-10 Phase Accept .

  • Page 7: General Information

    These capabilities are required to fully automate your transmission line system. CAPABILITIES BE1-25/79TR relays are similar in principle to mechanical repeat cycle timers where various operations are permitted as the cam is rotated. The capabilities of this relay are equivalent to and exceed mechanical relays used in automated transmission line systems.

  • Page 8: Control Inputs

    BE1-25/79TR General Information Control Inputs (External Contact Sensing Inputs) CE - Master timer enable(enables or freeze all timers). DTL - Drive to lockout. DTR - Drive to reset. PF - Power fail tripping enable/disable. BLK - Block high speed reclose for three-phase faults.

  • Page 9: Timing Functions

    BE1-25/79TR General Information Figure 1-1. Communication Terminal Screens Flow Diagram TIMING FUNCTIONS Control Inputs Some control inputs (external contact sensing inputs) are associated with both control and timing and may be used to enable or disable relay functions. An open CE contact sensing input freezes all timers. When the CE input is closed, the timers resume timing.

  • Page 10: Tripping

    BE1-25/79TR General Information A failed reclose can be detected when the breaker does not open (52b stays closed) after the breaker operate time (CLOSE TD setting) and the Lockout Timer time delay expire (see Figure 1-3). If 52b does not open (indicating a unsuccessful reclose) before the Lockout Timer expires, the relay will go to lockout.

  • Page 11: Outputs

    If the angle exceeds a phase window value, the high speed reclosing (and paralleling) can be blocked. BE1-25/79TR relays can be programmed to operate with the breaker open for a live line/live bus condition and the parallel function disabled.

  • Page 12: Reclosing Example

    25/79TR relay number 3 is connected to motor operated switch 89-4 with bus D PT feeding the line input and bus E PT feeding the bus input. BE1-25/79TR relay number 4 is connected in a similar manner for motor operated switch 89-5, Bus F, and Bus E. When reclosing 89-4 and 89-5, 89-4 is set to close first.
  • Page 13 BE1-25/79TR General Information Figure 1-5. Application Example BE1-25/79TR, Relay 1 Figure 1-6. Application Example BE1-25/79TR, Relay 2...
  • Page 14 BE1-25/79TR General Information Figure 1-7. Application Example BE1-25/79TR, Relay 3 Figure 1-8. Application Example BE1-25/79TR, Relay 4...

  • Page 15: Bus D Or Transformer T1 Faults And Clears

    Both breakers close. Customers served by buses D and F have power quickly restored. Now for bus E. BE1-25/79TR-3 and -4 relays for the motor operated switches now have live line and dead bus inputs, RP1 enables, and 52b inputs from the Form B contacts on the motor operated switches.

  • Page 16: Model Numbers

    BE1-25/79TR General Information MODEL NUMBERS Model number variation in BE1-25/79TR Sync-Check Reclosing Relays are specified by the last three digits in the part number. Table 1-1 provides model number, type of relay, mounting style, operating power supply voltage, and communications capability.

  • Page 17: Specifications

    BE1-25/79TR General Information SPECIFICATIONS Power Supply Inputs (Range) +125 Vdc (62 to 150 Vdc), or 120 Vac (90 to 132 Vac, 50/60 Hz). (Burden) Burden at 60 Hz, 120 Vac is 26 VA, and burden at 125 Vdc is 14 watts.
  • Page 18 BE1-25/79TR General Information Counter Enable (CE). Contact Sensing Inputs - Continued High Speed Enable (HSR). Block High Speed Reclose (BLK) for 3 phase faults. Drive to Lockout (DTL). Drive to Reset (DTR). Serial Port Communications Front and rear panel mounted RS 232-C connectors (9-pin, D subminiature female) for setting, testing, and data collection.
  • Page 19 BE1-25/79TR General Information Outputs - Continued RT ALM One N.C. output relay that closes for internal microprocessor failure or power supply failure. PROG There are three N.O. programmable outputs available to indicate voltage monitor conditions, targets and alarms. (Rating) Output contacts are rated as follows:...
  • Page 20 BE1-25/79TR General Information Indicators - Continued (Control) Four LED's (yellow) indicate relay control status. Trip. Close. 25 (Sync-Check Function). Counter Enable (CE). Isolation All terminals have MOV suppressors except the communication, line, and bus terminals. Maximum applied voltage must be no greater than 300 volts where MOV suppressors are used.

  • Page 21: Controls And Indicators

    SECTION 2 CONTROLS AND INDICATORS Figures 2-1 and 2-2 illustrate the horizontal BE1-25/79TR Sync-Check Reclosing Relay front and rear views. Figure 2-1. BE1-25/79TR Sync-Check Reclosing Relay, Front View Figure 2-2. BE1-25/79TR Sync-Check Reclosing Relay, Rear View...
  • Page 22 BE1-25/79TR Controls and Indicators Table 2-1. BE1-25/79TR, Control Panel, Controls and Indicators (Refer to Figure 2-3) . Locator Control or Indicator Function Display One line, twelve character display to monitor function status and settings. Targets LED's Eight LED's (red). Seven LED's (HSR, PF, LT1, RP1, LT2, RP2, and PAR indicate associated reclosing output contacts have closed.
  • Page 23 BE1-25/79TR Controls and Indicators Figure 2-3. Location of Controls and Indicators (Control Panel)
  • Page 24 BE1-25/79TR Controls and Indicators SELECTABLE N.O. OR N.C. OUTPUT CONTACTS To change the configuration of the RP1, LT1, RP2 and LT1 memory output contacts, turn the two outside locking screws located on the front panel to the unlock position. Grasp the center pull handle and withdraw the electronics from the case.
  • Page 25 BE1-25/79TR Controls and Indicators Figure 2-5. Vertical BE1-25/79TR Sync-Check Reclosing Relay, Front View...
  • Page 26 BE1-25/79TR Controls and Indicators Figure 2-6. Vertical BE1-25/79TR Sync-Check Reclosing Relay, Rear View...
  • Page 27 BE1-25/79TR Controls and Indicators Figure 2-7. Front Panel, Vertical Mount Relay...

  • Page 28: Functional Description

    FKIKVCN EKTEWKVT[ VQ RTQXKFG DTGCMGT EQPVTQN QH VTCPUOKUUKQP NKPG U[UVGOU $TGCMGT RQUKVKQP DWU XQNVCIG CPF NKPG XQNVCIG CTG OQPKVQTGF VQ FGVGTOKPG RTQRGT ENQUKPI QP HCWNVGF U[UVGOU BLOCK DIAGRAM ANALYSIS Refer to Figure 3-1 to follow the BE1-25/79TR block diagram analysis as described in the following paragraphs. Output/Magnetics Board Input transformers located on the output/magnetics board isolate the relay from the system and step down the voltages to the levels the internal circuits require.
  • Page 29 BE1-25/79TR Functional Description Figure 3-1. Functional Block Diagram...

  • Page 30: Modes Of Operation

    BE1-25/79TR Functional Description MODES OF OPERATION BE1-25/79TR Sync-Check Reclosing Relays have two primary modes of operation. They are the status mode and settings mode. These modes are selected by momentarily pushing the front panel Settings Select Up/Settings Select Down or the Reset switches.

  • Page 31: Status Mode

    BE1-25/79TR Functional Description Front Panel Display Description Range Day clock setting 01-31 days HOUR Hour clock setting 00-23 hours MINUTE Minute clock setting 00-59 minutes SECOND Second clock setting 00-59 seconds SYS FREQ Calibration Frequency 60 or 50 set only in Cal Mode...

  • Page 32: Reclosing Functional Description

    BE1-25/79TR Functional Description RECLOSING FUNCTIONAL DESCRIPTION High Speed Reclose There is one high speed reclose (pilot) function with a time delay of 1 to 999 cycles, and is designated HSR (refer to Figure 5-3). HSR is a momentary input and is latched internally. This function is initiated during carrier tripping when the breaker is closed.

  • Page 33: Sync-Check Function Description

    BE1-25/79TR Functional Description SYNC-CHECK FUNCTION DESCRIPTION Sync-Check Sync-check function measures the phase angle between single-phase line and bus voltages. If the measured angle is less than the front panel phase angle window setting, voltage difference is less than the voltage setting, and the time period defined by the sync time delay has expired, then the sync output contact closes and front panel 25 LED lights.

  • Page 34: Voltage Difference

    Delta voltage compares the magnitude of the voltage between the line and bus against a selected limit. If the delta voltage is less than the set limit, the BE1-25/79TR relay generates an enable signal for the sync-check logic. This function narrows the phasor voltage across the breaker contacts (as compared to a simple sync-check acting alone).
  • Page 35 BE1-25/79TR Functional Description Live Line (LL) Condition adjustable from 10 to 135 Vac. Enabled when line voltage is greater than setting. Indicated by front panel LED when LED is ON. Dead Line (DL) Condition adjustable from 10 to 135 Vac.

  • Page 36: Slip Frequency Difference

    BE1-25/79TR Functional Description Slip Frequency Difference For better control of closing angles, differences in the frequency of the bus and line can be limited when the line input is an oncoming generator. The phase angle window must be set to greater than 180 degrees to enable the slip frequency function only (the phase window is disabled).

  • Page 37: Reset Timers

    BE1-25/79TR Functional Description breaker open the relay goes to lockout after the master timer has timed out. At this point the breaker must be closed manually. Reset Timers There are two reset timers available, (RST1 and RST2). Both reset timers have a range of 1-999 seconds.

  • Page 38: Close Td Timer

    BE1-25/79TR Functional Description Close TD Timer This timer determines the maximum time the close output will stay closed when a reclose attempt is made. This timer is set according to the breaker operate time needed for a successful reclose. The close TD timer has a range of 1 to 999 seconds.

  • Page 39: Serial Port Connections And Configurations

    BE1-25/79TR Functional Description Serial Port Connections and Configurations Front and rear serial communication ports are RS 232-C female DB-9 connectors used to communicate with data terminal equipment (i.e. - computer or terminal) or data communications equipment (i.e. - modem). Because...

  • Page 40: Serial Communication

    BE1-25/79TR Functional Description Serial Communication Front and rear serial port communication cannot take place at the same time. Priority is given to the front panel port. If communication is in progress but no keys on the terminal are typed for five minutes, communication is stopped.

  • Page 41: Main Menu And Activities

    EDIT SETTINGS PASSWORD for entrance to the screen. Q.EXIT - This will cause access to the relay to be terminated. RELAY ID: XXXXXXXXXXXXXXXXXXXXXXXX DATE mm/dd/yy TIME hh:mm:ss BASLER ELECTRIC BE1-25/79TR TRANSMISSION RECLOSING RELAY SELECT ACTIVITY: DIAGNOSTICS REPORTS MENU REVIEW / RESET MAINTENANCE VALUES...
  • Page 42 BE1-25/79TR Functional Description RELAY ID is a special 24 character label entered in the review/reset maintenance screen to identify this relay from other devices. DATE and TIME are the current date and time as reported from the relay. The MODEL # is a set of characters/numbers that identifies the options for this model of relay. The SERIAL # is the serial number of the relay.
  • Page 43 BE1-25/79TR Functional Description RELAY ID: XXXXXXXXXXXXXXXXXXXXXXXX DATE mm/dd/yy TIME hh:mm:ss DIAGNOSTICS PARAMETER STATUS OK / ERROR OK / ERROR A/D CONVERTER OK / ERROR EEPROM OK / ERROR PT CAL NUMBERS OK / ERROR POWER SUPPLY OK / ERROR SYS FREQ...
  • Page 44 BE1-25/79TR Functional Description Review/Edit Settings (Figure 3-13) This activity screen provides a review and edit of the front panel settings from a remote terminal. The EDIT SETTINGS password is required (defined in the review/reset maintenance screen) to enter this screen.
  • Page 45 BE1-25/79TR Functional Description Review/Reset Maintenance Values (Figure 3-14) This activity screen provides a review and reset of the number of breaker operations that affect breaker maintenance and events/records needed for report generation. RELAY ID is a special 24 character label entered in this screen to identify this relay from other devices.
  • Page 46 BE1-25/79TR Functional Description After a new password is typed and return (enter) is pressed, <reenter password> will be displayed under the EXIST column. The new password must be typed in a second time for verification. If the new password typed in the second time matches the first time, then <new password accepted> will be displayed under the EXIST column.
  • Page 47 BE1-25/79TR Functional Description Reports Menu (Figure 3-15) This activity screen selects one of two possible reports that will display the stored events in the relay. RELAY ID is a special 24 character label entered in the review/reset maintenance settings screen to identify this relay from other devices.
  • Page 48 BE1-25/79TR Functional Description This activity screen displays a summary report of each record beginning with the most recent record. Records are numbered 1 to 99. When record #99 occurs the next following record will be record #1. Each record contains a number of events. An event is stored every time that a control input changes, a system change occurs, an output change occurs, or a mode changes.
  • Page 49 BE1-25/79TR Functional Description when the event occurred. The screen is automatically updated when a new event occurs. XON (Ctrl-Q) can be used to freeze the screen and XOFF (Ctrl-S) will restart the screen update. Ctrl-R can be used to refresh the screen with the latest data.
  • Page 50 BE1-25/79TR Functional Description A maximum of 100 events can be stored in the relay. The total number of records depends on the number of events that each record contains. For example, if each record holds 10 events then only the last 10 records are stored.
  • Page 51 BE1-25/79TR Functional Description BE1-25/79TR DETAILED REPORT DATE: XX/XX/XX TIME: XX:XX:XX STATION: XXXXXXXXXXXXXXXXXXXX RECORD NUMBER: XX LINE: XXXXXXXXXXXXXXXXXXXX RELAY SERIAL # XXXXXXXXXXX BREAKER # XXXXX ----TIME--|SYSTEM-|---------INPUTS--------|--OUTPUTS--|-------TIMERS------- S |B L S |5 D D B H L L R R P P C| C T S M T | L L R R P P L R R S...
  • Page 52 BE1-25/79TR Functional Description Programmable Outputs (Figure 3-18) The purpose of this screen is to select the system conditions for the programmable outputs. The initial default settings for all selections is NO. A parameter may be selected to operate either Programmable Output 1, Programmable Output 2, Programmable Output 3 or NONE when the condition exists.

  • Page 53: Installation

    INSTALLATION GENERAL When not shipped as part of a control or switchgear panel, BE1-25/79TR Sync-Check Reclosing Relays are shipped in sturdy cartons to prevent damage during transit. Immediately upon receipt, check the model and style number against the requisition and packing list to see that they agree. Visually inspect it for damage that may have occurred during shipment.

  • Page 54: Mounting

    MOUNTING General BE1-25/79TR Sync-Check Reclosing Relays are designed to be either rack- or panel-mounted. Overall dimensions are shown in Figure 4-1. Alternatively, the unit may be panel mounted at any convenient angle, using the cutout dimensions of Figure 4-2 as a guide. When panel mounting the relay, an optional escutcheon plate can be installed to cover variations in panel cutouts.
  • Page 55 BE1-25/79TR Installation Figure 4-2. Cutout Dimensions (for Non-Rack Mounting) Legend For Figure 4-3 Screw, Flat-Head, 8-32 x 7/16, Phillips Head. Escutcheon Plate. Screw, Flat-Head, 4-40 x 5/16, Torx Head T10. Screw, Pan-Head, 4-40 x 3/8, Torx Head T10. Cover. Figure 4-3. Escutcheon Plate Mounting...

  • Page 56: Installing Escutcheon Plates

    Installing Escutcheon Plates To install the escutcheon plate kit (Basler part number, 9 2720 13 100) you must first remove the mounting flanges by removing the four screws (1) from the relay (two from each side). To allow the escutcheon plate to slide onto the relay, remove the four screws (4) from the relay (two from each side).

  • Page 57: Connections

    BE1-25/79TR Installation CONNECTIONS It is important to provide a ground connection for chassis ground. Terminals of BE1-25/79TR Sync-Check Reclosing Relays are identified in Figure 4-5 (Typical External Connections). All terminals are suitable for use with wire sizes of 14 AWG or smaller. Typical connection diagrams are shown in Figures 4-6 and 4-7.
  • Page 58 BE1-25/79TR Installation Figure 4-6. Typical Connection Diagram - Single Phase Figure 4-7. Typical Connection Diagram - Three Phase...
  • Page 59 HSR-High Speed Reclose Enable LT1-First Line Test Enable P/FCO-Parallel Feature Cut-Out PAR-Parallel Enable PF-Power Failure Enable R/FCO-Restore Feature Cut-Out RP1-First Restore Power Enable T/FCO-Test Feature Cut-Out Figure 4-8. Typical Connection Diagram, for BE1-25/79TR Sync-Check Reclosing Relay Assigned To Loop Station Line Circuit Breaker...
  • Page 60 BE1-25/79TR Installation Figure 4-9. RS 232 Interconnection Diagram For IBM Type Computers...
  • Page 61 BE1-25/79TR Installation Figure 4-10. RS 232 Interconnection Diagram For Protective Relay Terminals...

  • Page 62: Testing

    TESTING GENERAL A BE1-25/79TR Test Simulator (shown in Figure 5-1) makes testing BE1-25/79TR relays much easier. All contact sensing inputs and enable inputs are simulated by toggle switches that are easily accessible on the front panel. Appropriate LEDs provide BE1-25/79TR relay functional indications. Additionally, the test procedures in this section use the Test Simulator switch and LED names.
  • Page 63 BE1-25/79TR Testing Figure 5-1. BE1-25/79TR Test Simulator...
  • Page 64 BE1-25/79TR Testing Figure 5-2. BE1-25/79TR Test Simulator, Schematic Diagram (Sheet 1 of 2)
  • Page 65 BE1-25/79TR Testing Figure 5-3. BE1-25/79TR Test Simulator, Schematic Diagram (Sheet 2 of 2)
  • Page 66 BE1-25/79TR Testing Figure 5-4. Test Setup Diagram...
  • Page 67 BE1-25/79TR Testing Time, Date, Settings, and Save Step 1. Perform the preliminary setup procedures. Step 2. Use the relay Set Select and Status/EDIT switches to set the current time and date. Step 3. Load the desired timer and voltage settings.
  • Page 68 BE1-25/79TR Testing RP1 Timer Step 13. Set the line voltage at a live level and the bus voltage at a dead level. Step 14. Close the RP1 switch on the test set and trip the test set breaker. Observe that the test set breaker closes and the RP1 target LED lights after the RP1 timer counts down.

  • Page 69: Control Inputs

    BE1-25/79TR Testing Close Timer Step 25. Open ENABLE CLOSE switch on the test set. Step 26. Close test set PAR switch. Step 27. Trip the test set breaker. Verify that after the PAR time delay expires, the relay close contacts close for the time duration programmed.
  • Page 70 BE1-25/79TR Testing Step 6. Trip the test set breaker and momentarily close the test set HSR switch. A high speed reclosure should NOT occur. Step 7. Open the test set BLK switch and close the test set breaker. Step 8. Close the test set PAR switch.

  • Page 71: Voltage Monitor

    BE1-25/79TR Testing Voltage Monitor Step 1. Perform the preliminary setup procedures. Step 2. Vary the bus and line voltage and observe that the DB, DL, LB, and LL LEDs light and extinguish at the proper levels and that the relay Status display shows the correct voltages for each condition.

  • Page 72: Slip Frequency Difference

    BE1-25/79TR Testing Step 8. Trip the test set breaker and wait for the sync contacts to close. Step 9. Increase the phase angle until the sync contacts open. The measured phase angle should be ±1% of the phase window setting and the displayed phase angle on the relay should be ±1% of the measured phase angle.

  • Page 73: Calibration

    BE1-25/79TR Testing CALIBRATION To calibrate the relay, perform the following steps. Step 1. Perform the preliminary setup procedures. Step 2. Operate the Settings Select UP or DOWN switch and observe SETTINGS MDE indicated on display. Step 3. Operate the Settings Select UP or DOWN switch until CAL MODE NO is indicated on display.

  • Page 74: Self Test

    BE1-25/79TR Testing Step 9 - Continued If three phase type relay: Phase Cal Line 3 Ph Cal OK Ln A Cal OK Ln B Cal OK Ln C Bus 3 Ph Cal OK Bus A Cal OK Bus B Cal OK Bus C followed by: 3 Ph Rng Done.
  • Page 75 BE1-25/79TR Testing Step 7. Verify that all contact sensing inputs are open. Operate the Status/EDIT Down switch. Observe that the relay completes the pre-programmed test sequence. The sequence of events (tests) is as follows: HSR Target LED ON LT1 Target LED ON...

  • Page 76: Loading Factory Default Settings

    BE1-25/79TR Testing LOADING FACTORY DEFAULT SETTINGS Factory default settings are primarily used during factory testing. Factor Default Settings Factory default settings are: MASTER TD RST 1 TD RST 2 TD HSR TD CYCLES LT1 TD LT2 TD RP1 TD RP2 TD...

  • Page 77: Maintenance

    BE1-25/79TR Sync-Check Reclosing Relays require no preventive maintenance other than clock battery replacement (estimated 10 year life). If the relay fails to function properly and factory repair is desired, contact the Customer Service Department of the Power Systems Group, Basler Electric, for a return authorization number prior to shipping.

  • Page 78: Change Information

    SECTION 7 MANUAL CHANGE INFORMATION SUMMARY AND CROSS REFERENCE GUIDE This section contains information concerning the previous editions of the manual. The substantive changes to date are summarized in the Table 7-1. Table 7-1. Changes Revision Summary of Changes ECA And Date Changed Specifications to reflect MOV installation and testing.

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