COMMISSIONING AND TESTING GUIDE 31
• Step 5/10
On the protection relay LHMI (tested feeder) go
to -> Main Menu/Test/IED test
- Test mode = IED test
The ready LED is flashing when the protection
relay is in the test mode.
• Step 6/10
On the protection relay LHMI (tested feeder) go
to -> Main Menu/Test/Function tests/ Other
protection
- CCBRBRF1 = Activate TRBU (backup trip logic
output)
• Step 7/10
Check the interlocking logic. Clear Lockouts.
• Step 8/10
On the protection relay LHMI (tested feeder) go
to -> Main Menu/Test/IED test
- Test mode = Normal mode
- The ready LED is flashing when the protection
relay is in the test mode.
• Step 9/10
Repeat steps 3 to 8 for all feeders.
• Step 10/10
On the protection relay LHMI (upstream breaker
receiving CBFP trip command) go to -> Main
Menu/Test/IED test
- Test mode = Normal mode
- The ready LED is steady ON.
The Incomer and Bus tie circuit breakers must trip
immediately.
Then, on the protection relay LHMI (tested feeder)
go to -> Main Menu/Test/Function tests/Other
protection
- CCBRBRF1 = Deactivate TRBU
—
58
—
59
—
57
—
57 Activating
backup trip
—
58 Deactivating
backup trip
—
59 Entering test mode
To Next Page
Loading...
