GE MiCOM P40 Technical Manual page 864

Appendix B -Settings and Signals
MENU TEXT
When Zero Sequence is selected, this arms the Virtual Current Polarizing.
DEF Char. Angle
Setting for the relay characteristic angle used for the directional decision.
DEF VNpol Set
Setting that must be exceeded by generated neutral displacement voltage VN (= 3.Vo) in order for the DEF function to be operational.
As Virtual Current Polarizing will be in force when Zero sequence polarizing is used, this setting will normally have no relevance. If the relay
phase selector (delta sensitivity typically 4% In) detects the faulted phase, this will artificially generate a large VNpol, typically equal to Vn
(phase-ground). Only if the phase selector cannot phase select will this setting be relevant, as VNpol will then measure true VN.
The setting is invisible if 'Neg. Sequence' polarization is set.
DEF V2pol Set
Setting that must be exceeded by generated negative sequence voltage V2 in order for the DEF function to be operational.
The setting is invisible if 'Zero Sequence' polarization is set.
DEF FWD Set
Setting the forward pickup current sensitivity for residual current (= 3.Io).
DEF REV Set
Setting the reverse pickup current sensitivity for residual current (= 3.Io).
GROUP 1: SEF/REF
PROT'N
This column contains settings for SEF/REF
SEF/REF Options
Setting to select the type of sensitive earth fault protection function and the type of high-impedance function to be used.
ISEF>1 Function
Setting for the tripping characteristic for the first stage sensitive earth fault element.
ISEF>1 Direction
This setting determines the direction of measurement for the first stage sensitive earth fault element.
ISEF>1 Current
Pick-up setting for the first stage sensitive earth fault element.
ISEF>1 IDG Is
This setting is set as a multiple of ISEF> setting for the IDG curve (Scandinavian) and determines the actual relay current threshold at which
the element starts.
ISEF>1 Delay
Setting for the time delay for the first stage definite time element.
ISEF>1 TMS
Setting for the time multiplier to adjust the operating time of the IEC IDMT characteristic.
B118
COL ROW DEFAULT SETTING
39 04 -60
39 05 1
39 06 1
39 07 0.08
39 08 0.04
3A 00
3A 01 SEF Enabled
3A 2A DT
3A 2B Non-Directional
3A 2E 0.05
3A 2F 1.5
3A 31 1
3A 32 1
DESCRIPTION
From -95 to 95 in steps of 1
[Courier Number (angle)]
From 0.5*V1 to 40*V1 in steps of 0.5*V1
[Courier Number (voltage)]
From 0.5*V1 to 25*V1 in steps of 0.5*V1
[Courier Number (voltage)]
From 0.05*I1 to 1.0*I1 in steps of 0.01*I1
[Courier Number (current)]
From 0.03*I1 to 1.0*I1 in steps of 0.01*I1
[Courier Number (current)]
SEF Enabled
Wattmetric SEF
Hi Z REF
[Indexed String]
Disabled
DT
IEC S Inverse
IEC V Inverse
IEC E Inverse
UK LT Inverse
IEEE M Inverse
IEEE V Inverse
IEEE E Inverse
US Inverse
US ST Inverse
IDG
[Indexed String]
Non-Directional
Directional Fwd
Directional Rev
[Indexed String]
From 0.005*I3 to 0.1*I3 in steps of 0.00025*I3
[Courier Number (current)]
From 1 to 4 in steps of 0.1
[Courier Number (decimal)]
From 0 to 200 in steps of 0.01
[Courier Number (time-seconds)]
From 0.025 to 1.2 in steps of 0.005
[Courier Number (decimal)]
AVAILABLE OPTIONS
P446SV-TM-EN-1
P446SV