Alstom MiCOM P546 - Page 824

P54x/EN CM/La4 Commissioning
(CM) 10-76 MiCOM P543, P544, P545 & P546
CM
*Delete as appropriate
7 GPS Synchronization
7.1.1 P594 commissioned? Yes*
N/A*
7.1.2 P594 optical signal strength at P54x relay
dBm
N/A*
7.1.3
Check synchronization signal at P54x relay
Bit pattern **11********** ?
Yes* N/A*
7.1.4
Check GPS failure condition
Bit pattern **00********** ?
Yes* N/A*
7.1.5
Restore GPS
Bit pattern **11********** ?
Yes* N/A*
8 Setting checks
8.1 Application-specific functio
n settings applied? Yes* No*
Application-specific programmable scheme logic
settings applied?
Yes*
No*
N/A*
Relay power-off and on if Comms Mode
changed?
Yes* N/A*
8.1.1 Loopback Mode and Test Pattern configured? Yes* N/A*
8.1.2 Communication statistics reset? Yes* N/A*
8.3 Testing the current differential protection
8.3.1
Elements to b
e re-enabled after testing
(mark any that have been temporarily disabled)
Distance
Earth fault
Overcurrent
DEF
CB fail
Na*
8.3.1.2 Current differential lower slope pickup A
8.3.1.3 Current differential upper slope pickup A
8.3.2.1 Current differential phase A contact routing OK? Yes* No*
Current differential phase A trip time s
8.3.2.2 Current differential phase B contact routing OK? Yes* No*
Current differential phase B trip time s
8.3.2.3 Current differential phase C contact routing OK? Yes* No*
Current differential phase C trip time s
Average trip time, phases A, B and C s