Appendix B - Settings and Signals
ORDINAL SIGNAL NAME ELEMENT NAME
DESCRIPTION
DDB_SIGNALLING_FAIL_CH2_TX
Transmission of messages on channel 1 has stopped
This is an alarm that appears if the channel 2 baud rate is outside the limits 52kbits/s or 70 kbits/s
DDB_IEEE37_94_CH2_LOSS_OF_SIG
Mux indicates signal lost over channel 2
DDB_IEEE37_94_CH2_PATH_YELLOW
One way communication. Local relay that is sending over Ch2 indicates that remote end is not receiving
Relay is already configured
Reconfigure was successful
Reconfigure was unsuccessful
Inhibit Current Differential
DDB_FL_CURRENT_PROT_SEF_TRIP
DDB_CURRENT_PROT_SEF_TRIP
Block Underfrequency Stage 1 Timer
Block Underfrequency Stage 2 Timer
Block Underfrequency Stage 3 Timer
Block Underfrequency Stage 4 Timer
Block Overfrequency Stage 1 Timer
Block Overfrequency Stage 2 Timer
Under frequency Stage 1 start
Under frequency Stage 2 start
Under frequency Stage 3 start
Under frequency Stage 4 start
Over frequency Stage 1 start
Over frequency Stage 2 start
Under frequency Stage 1 trip
Under frequency Stage 2 trip
Under frequency Stage 3 trip
Under frequency Stage 4 trip