GE MiCOM P40 Technical Manual page 840

Appendix B -Settings and Signals
MENU TEXT
ÐkZN = Ð (Z0 – Z1)/3Z1 where,
Z1 = positive sequence impedance for the protected line or cable.
Z0 = zero sequence impedance for the protected line or cable.
This setting is a used for Distance protection (when set to simple mode) . If Distance protection is set to Advanced mode, there are individual
settings per Zone in the GROUP x DISTANCE ELEMENTS settings.
Mutual Comp
To enable (activate) or disable (turn off) the Mutual compensation replica used in both, Distance and Fault locator ground fault loops.
KZm Mutual Set.
Setting of the mutual compensation factor kZm magnitude is calculated as a ratio:
|kZm| = ZM0/3Z1 where,
ZM0 = zero sequence mutual impedance for the protected line or cable.
Z1 = positive sequence impedance for the protected line or cable.
Setting kZm is visible if 'Mutual Comp' is enabled. This setting is a used for fault locator and Distance protection (when set to simple mode) .
If Distance protection is set to Advanced mode, there are individual settings per Zone in the GROUP x DISTANCE ELEMENTS settings.
KZm Mutual Angle
Setting of the mutual compensation angle (in degrees) is calculated as:
kZm = ZM0/3Z1
Angle setting kZm is visible if 'Mutual Comp' is enabled. This setting is a used for fault locator and Distance protection (when set to simple
mode) . If Distance protection is set to Advanced mode, there are individual settings per Zone in the GROUP x DISTANCE ELEMENTS settings.
Mutual Cut Off
Only in models with Distance option. Setting used to eliminate the mutual compensation replica in case when the ratio of neutral current of
the parallel line to the neutral current of the protective line (IMUTUAL/IN) exceeds the setting. This setting is visible only if 'Mutual Comp' is
enabled.
Phase Sequence
This setting is used to select whether the 3 phase quantities (V and I) are rotating in the standard ABC sequence, or whether the rotation is in
reverse ACB order. The appropriate selection is required to ensure that all derived sequence components and faulted phase
flagging/targeting are correct.
CB1Tripping Mode
This setting is used to select the tripping mode. The selection 1 and 3 pole allows single pole tripping for single phase to ground faults, whilst
selection 3 pole converts any trip command(s) to three pole tripping.
CB2Tripping Mode
This setting is used to select the tripping mode. The selection 1 and 3 pole allows single pole tripping for single phase to ground faults, whilst
selection 3 pole converts any trip command(s) to three pole tripping.
Line Charging Y
Setting for protected lines' total susceptance in either primary or secondary terms, depending on the Setting Values reference chosen in the
CONFIGURATION column. The set value is used to calculate the compensated overvoltage if 'V1>1 Cmp Funct' setting is enabled under
GROUP x VOLT PROTECTION.
GROUP 1: DISTANCE
SETUP
This column contains settings for Distance Setup
Setting Mode
Setting to select setting mode for Distance protection, depending on type of application and user preferences.
'Simple' mode:
'Simple' setting mode is the default setting mode, suitable for the majority of applications. Instead of entering distance zone impedance
reaches in ohms, zone settings are simply entered in terms of percentage of the protected line data specified in the 'GROUP x LINE
PARAMETERS/Line Impedance' setting. The setting assumes that the residual compensation factor is equal for all zones. The relay auto
calculates the required reaches from the percentages. The calculated zone reaches are available for viewing but a user can not alter/change
B94
COL ROW DEFAULT SETTING
30 07 Disabled
30 08 1
30 09 0
30 0A 0
30 0B Standard ABC
30 0C 3 Pole
30 0E 3 Pole
30 10 0.002
31 00
31 0C Simple
DESCRIPTION
Disabled
Enabled
[Indexed String]
From 0 to 10 in steps of 0.01
[Courier Number]
From -180 to 90 in steps of 1
[Courier Number (angle)]
From 0 to 2 in steps of 0.1
[Courier Number]
Standard ABC
Reverse ACB
[Indexed String]
3 Pole
1 and 3 Pole
[Indexed String]
3 Pole
1 and 3 Pole
[Indexed String]
From 0*I2 to 0.01*I2 in steps of 0.0001
[Courier Number (inverse ohms)]
Simple
Advanced
[Indexed String]
AVAILABLE OPTIONS
P446SV-TM-EN-1
P446SV