GE MiCOM P40 Technical Manual page 852

Appendix B -Settings and Signals
MENU TEXT
Setting that defines Aided 1 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
Setting that defines the Weak Infeed tripping mode. When disabled, any WI trip will be converted to a 3 phase trip.
WI V<Thresh.
Setting of Weak Infeed level detector. If phase - ground voltage in any phase drops below the threshold and with insufficient phase current
for the protection to operate, the end is declared as a weak infeed terminal.
WI Trip Delay
Setting for the weak infeed trip time delay.
Custom Send Mask
Logic Settings that determine the element or group of elements that are sending a permissive signal to the other line end. For the signal to
be sent, the element must operate and a corresponding bit in the matrix must be set to 1 (High).
The above mapping is part of a custom made Aided 1 scheme, and unlike all other schemes that are factory tested, the customer must take
the responsibility for testing and the operation of the scheme.
This setting is visible only if a Programmable or Prog. Unblocking scheme is selected.
Custom Time PU
Pick up time delay of DDB signal 'Aid1 CustomT in', available in the PSL logic. Once the time delay elapses, the DDB signal 'Aid1 CustomT out'
will become high.
Custom Time DO
Drop off time delay of DDB signal 'Aid1 CustomT in'. Once the time delay elapses, the DDB signal 'Aid1 CustomT out' will become low.
Note: The timer is a combined hard coded PU/DO timer for Custom Aided scheme 1.
AIDED SCHEME 2
Aid. 2 Selection
Selection of the generic scheme type for aided channel 2.
Note: POR is equivalent to POTT (permissive overreach transfer trip), PUR is
equivalent to PUTT (permissive underreach transfer trip).
Aid 2 Distance
B106
COL ROW DEFAULT SETTING
34 51 Disabled
34 52 45
34 53 0.06
34 58 1
34 59 0
34 5A 0
34 60
34 61 Disabled
34 62 Disabled
DESCRIPTION
Echo
Echo and Trip
[Indexed String]
Disabled
Enabled
[Indexed String]
From 10*V1 to 70*V1 in steps of 5*V1
[Courier Number (voltage)]
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
Z1 Gnd.
Z2 Gnd.
Z4 Gnd.
Z1 Ph.
Z2 Ph.
Z4 Ph.
DEF Fwd.
DEF Rev.
Dir Comp Fwd.
Dir Comp Rev.
[Binary Flag (indexed string)]
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
From 0 to 1 in steps of 0.002
[Courier Number (time-seconds)]
Disabled
PUR
PUR Unblocking
POR
POR Unblocking
Blocking 1
Blocking 2
Prog. Unblocking
Programmable
[Indexed String]
Disabled
Phase only
Ground only
Phase And Ground
[Indexed String]
AVAILABLE OPTIONS
P446SV-TM-EN-1
P446SV