GE 750, Инструкция по эксплуатации

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GE Power Management 750/760 Feeder Management Relay 17-
67
17 COMMISSIONING 17.9 CONTROL SCHEMES
17
e) TRANSFER INITIATED BY SOURCE TRIP NO. 1
1. Energize both test sources at nominal voltage, and wait until the Transfer Not Ready message is removed
from the display of both Incomer relays.
2. At the Incomer 1 relay assert Logic Input No. 13 (Source Trip.) The Incomer 1 relay should trip the Incomer
1 breaker and operate output relay 6 to send a Close From Incomer 1 signal to the Bus Tie relay. Output
relay 6 at the Incomer 1 relay should reset when the Incomer 1 breaker trips, removing the signal to the
Bus Tie relay. The Bus Tie breaker should not close as the voltage on its Bus and Line inputs is too high.
3. Slowly reduce the test Source 1 voltage. The Bus Tie breaker should close when the voltage is below the
Dead Bus Max Volts setpoint of its Synchrocheck feature. Increase the voltage to nominal.
4. At the Incomer 1 relay de-assert Logic Input No. 13 (Source Trip.)
5. Momentarily assert logic input 3 (Remote Open) at the Bus Tie relay. The Bus Tie breaker should open.
6. Momentarily assert logic input 2 (Remote Close) at the Incomer 1 relay. The Incomer 1 breaker should
close.
7. Check the Event Recorders in the Incomer 1 and Bus Tie relays for the correct messages and sequences,
then clear the recorders.
f) TRANSFER INITIATED BY SOURCE TRIP NO. 2
1. Energize both test sources at nominal voltage, and wait until the Transfer Not Ready message is removed
from the display of both Incomer relays.
2. At the Incomer 2 relay assert Logic Input No. 13 (Source Trip.) The Incomer 2 relay should trip the Incomer
2 breaker and operate output relay 6 to send a Close From Incomer 2 signal to the Bus Tie relay. Output
relay 6 at the Incomer 2 relay should reset when the Incomer 2 breaker trips, removing the signal to the
Bus Tie relay. The Bus Tie breaker should not close as the voltage on its Bus and Line inputs is too high.
3. Slowly reduce the test Source 2 voltage. The Bus Tie breaker should close when the voltage is below the
Dead Line Max Volts setpoint of its Synchrocheck feature. Increase the voltage to nominal.
4. At the Incomer 2 relay de-assert Logic Input No. 13 (Source Trip.)
5. Momentarily assert logic input 3 (Remote Open) at the Bus Tie relay. The Bus Tie breaker should open.
6. Momentarily assert logic input 2 (Remote Close) at the Incomer 2 relay. The Incomer 2 breaker should
close.
7. Check the Event Recorders in the Incomer 2 and Bus Tie relays for the correct messages and sequences,
then clear the recorders.
g) TRANSFER INITIATED BY UNDERVOLTAGE ON SOURCE 1
1. Energize both test sources at nominal voltage, and wait until the Transfer Not Ready message is removed
from the display of both Incomer relays.
2. Turn test Source 1 off. The Undervoltage 3 feature of the Incomer 1 relay should operate immediately and
operate output relay 4; at the Incomer 2 relay output relay 3 will operate and the Transfer Not Ready mes-
sage will be displayed. When the Undervoltage 4 feature times-out the Incomer 1 relay should trip breaker
1 and operate output relay 6 to send a Close From Incomer 1 signal to the Bus Tie relay. Output relay 6
should reset when breaker 1 trips, removing the signal to the Bus Tie relay. Upon receiving the signal from
the Incomer 1 relay the Bus Tie relay should close the Bus Tie Breaker.
3. Check the Event Recorders in the Incomer 1 and Bus Tie relays for the correct messages and sequences,
then clear the recorders.