Appendix B -Settings and Signals
ORDINAL SIGNAL NAME ELEMENT NAME
DESCRIPTION
Frequency out of range alarm
Circuit breaker 2 fail alarm
This alarm indicates that DDB CB2 I ^ Maint. Alarm (1113) or DDB CB2 OPs Maint. (1115) or DDB CB2 Time Maint. (1117)
This alarm indicates that DDB CB2 I ^ Lockout Alarm (1114) or DDB CB Ops Lock (1116) or DDB CB Time lockout (1118)
Indication of problems by circuit breaker 2 state monitoring - example defective auxiliary contacts
Circuit breaker 2 failed to trip (after a manual/operator) trip command
Circuit breaker 2 failed to close (after a manual/operator or auto-reclose close command)
DDB_CONTROL_CB2_UNHEALTHY
Manual circuit breaker unhealthy output signal indicating that the circuit breaker 2 has not closed successfully after a manual close
command. (A successful close also requires The circuit breaker healthy signal to reappear within the "healthy window" timeout)
DDB_CONTROL_NO_CHECK_SYNC_2
Indicates that the check synchronism signal has failed to appear for a manual close
Indicates an auto-reclose lockout condition - no further auto-reclosures possible until resetting
Auto-reclose circuit breaker unhealthy signal, output from auto-reclose logic. Indicates during auto-reclose in progress, if the circuit
breaker has to become healthy within the circuit breaker healthy time window
Indicates during auto-reclose in progress, if system checks have not been satisfied within the check synchronizing time window
AR Mode selected via optos is not supported
Indicates a failure in differential or distance or DEF
This is an alarm which indicates that C3794 comms have been changed to standard or vice versa and relay must be rebooted
Maximum Propagation Delay Alarm
Means the abnormal state of IEC 61850-9-2LE sample
This DDB means the IEC 61850-9-2LE configure is wrong
Triggers user alarm 1 message to be alarmed on LCD display (self-resetting)
Triggers user alarm 2 message to be alarmed on LCD display (self-resetting)
Triggers user alarm 3 message to be alarmed on LCD display (self-resetting)
Triggers user alarm 4 message to be alarmed on LCD display (self-resetting)
Triggers user alarm 5 message to be alarmed on LCD display (manual-resetting)
Triggers user alarm 6 message to be alarmed on LCD display (manual-resetting)
Triggers user alarm 7 message to be alarmed on LCD display (manual-resetting)
Triggers user alarm 8 message to be alarmed on LCD display (manual-resetting)
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