GE MiCOM P40 - Page 853

P446SV
Appendix B -Settings and Signals
P446SV-TM-EN-1
B107
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
Setting to select whether distance elements should key the scheme selected as per the previous setting. If set to Disabled, no distance zones
interact with this aided scheme, and basic scheme tripping only applies.
Aid.2 Dist. Dly 34 63 0.02
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
Trip time delay for Aided 2 Distance schemes.
Aid. 2 DEF 34 64 Enabled
Disabled
Enabled
[Indexed String]
Setting to select whether a DEF scheme should be mapped to Aided scheme 2.
(Not applicable where a Permissive Underreaching scheme selection has been made).
Aid. 2 DEF Dly. 34 65 0.02
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
Time delay for Aided 2 DEF tripping.
Aid. 2 DEF Trip 34 66 3 Pole
3 Pole
1 and 3 Pole
[Indexed String]
Setting that defines the tripping mode for Aided 2 DEF.
This setting is visible only if tripping mode under GROUP x LINE PARAMETERS/Trip Mode is set to 1 and 3 pole.
Aid. 2 Delta 34 67 Disabled
Disabled
Enabled
[Indexed String]
Setting to select whether a Delta directional comparison scheme should be mapped to Aided scheme 2.
(Not applicable where a Permissive Underreaching scheme selection has been made).
Aid. 2 Delta Dly 34 68 0.02
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
Time delay for Aided 2 Delta tripping.
Aid. 2 DeltaTrip 34 69 3 Pole
3 Pole
1 and 3 Pole
[Indexed String]
Setting that defines tripping mode for Aided 2 Delta.
This setting is visible only if tripping mode under GROUP x LINE PARAMETERS/ Trip Mode is set to 1 and 3 pole.
tReversal Guard 34 6A 0.02
From 0 to 0.15 in steps of 0.002
[Courier Number (time-seconds)]
Setting for the current reversal guard timer. Intended to keep stability on a healthy line, whilst breakers open on a faulted parallel line to
clear the fault.
This setting is visible only when over-reaching or Blocking schemes are selected.
Unblocking Delay 34 6B 0.05
From 0 to 0.1 in steps of 0.002
[Courier Number (time-seconds)]
Time delay after Loss of Guard until unblocking occurs. After the set delay, the relay will respond as though an aided signal has been
received from the remote end.
This setting is visible only when PUR Unblocking, POR Unblocking or Programmable Unblocking schemes are chosen.
Send on Trip 34 6C Aided / Z1
Aided / Z1
Any Trip
None
[Indexed String]
Setting that defines the reinforced trip signal for POR Aided 2 scheme.
If selected to: None: No reinforced signal is issued
Aided/Z1: The reinforced signal is issued with aided trip or with Z1 if aided distance scheme is enabled
Any Trip: Signal is reinforced with Any trip (DDB 522)
Weak Infeed 34 70 Disabled
Disabled
Echo
Echo and Trip
[Indexed String]
Setting that defines Aided 2 scheme operation in case of weak infeed conditions, where no protection elements detect the fault at the local
end, but an aided channel has been received from the remote end. Setting “Echo” will allow the received signal to be returned to the remote
relay, “Trip” will allow local end tripping after a set delay.
WI Sngl Pole Trp 34 71 Disabled
Disabled
Enabled
[Indexed String]
Setting that defines the Weak Infeed tripping mode. When disabled, any WI trip will be converted to a 3 phase trip.
WI V<Thresh.
34
72
45
From 10*V1 to 70*V1 in steps of 5*V1