Appendix B - Settings and Signals
ORDINAL SIGNAL NAME ELEMENT NAME
DESCRIPTION
This is an output signal available in the PSL, which can be mapped in IEC870-5-103 to a major problem normally linked to the watchdog
This is an output signal available in the PSL, which can be mapped to enable AR via pulse
This is an output signal available in the PSL, which can be mapped to disable AR via pulse
External input via DDB mapped in PSL to enable AR if Enable AR CB1 or Enable AR CB2 is set and AR Configuration setting is enabled
Setting MaxCh 1 PropDelay has been exceeded
Setting MaxCh 2 PropDelay has been exceeded
DDB mapped in PSL from opto or comms input. External signal to inhibit autoreclose.
Line-Bus 1 slip freq > setting [48 98] (frequency difference (slip) between line voltage and bus 1 voltage is greater than maximum slip
permitted for CB synchronism check stage 2)
Line-Bus 1 slip freq < setting [48 98] (frequency difference (slip) between line voltage and bus voltage is within the permitted range for CB
synchronism check stage 2)
DDB_CS2_LINE_FREQ_GT_BUS_FREQ
Frequency difference between Line V and Bus1 V is greater than setting [48 98] (line freq > Bus freq)
DDB_CS2_LINE_FREQ_LT_BUS_FREQ
Frequency difference between Line V and Bus1 V is greater than setting [48 98] (line freq < Bus freq)
Line/Bus1 phase angle in range: setting [48 95] to +180deg (anticlockwise from Vbus)
Line/Bus1 phase angle in range: setting [48 95] to -180deg (clockwise from Vbus)
If setting "Lead AR Mode" = Opto, then if input DDB "AR Mode 1P" is high, the leader CB is enabled for single phase autoreclose, if "AR Mode
1P" is low, the leader CB is NOT enabled for single phase autoreclose.
If setting "Lead AR Mode" = Opto, then if input DDB "AR Mode 3P" is high, the leader CB is enabled for three phase autoreclose, if "AR Mode 3P"
is low, the leader CB is NOT enabled for three phase autoreclose.
DDB mapped in PSL from opto or comms input. Input operation will initiate APh test trip & autoreclose cycle
DDB mapped in PSL from opto or comms input. Input operation will initiate BPh test trip & autoreclose cycle
DDB mapped in PSL from opto or comms input. Input operation will initiate CPh test trip & autoreclose cycle
DDB mapped in PSL from opto or comms input. Input operation will initiate 3Ph test trip & autoreclose cycle
DDB mapped in PSL from opto or comms input: indicates external protection operated for fault involving A phase
DDB mapped in PSL from opto or comms input: indicates external protection operated for fault involving C phase
DDB mapped in PSL from opto or comms input: indicates external protection operated for fault involving C phase
DDB mapped in PSL from opto or comms input: if setting "AR Skip Shot 1" = Enable and this input is high when a protection operation initiates
an autoreclose cycle, then the sequence counter advances directly to SC:COUNT = 2 so the autoreclose cycle skips
DDB mapped in PSL from opto or comms input. This input DDB is used when required to reset any CB "Successful Autoreclose" signal.
DDB_EXTERNAL_RES_CB_SHOTS
DDB mapped in PSL from opto or comms input. This input DDB is used when required to reset the CB cumulative "Shots" counters.
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