Appendix
B-14
7SA6 Manual
C53000-G1176-C156-2
3141 3I0p PICKUP Earth fault overcur-
rent
0.003..25.000 A 1.000 A 3I0p Pickup
3142 3I0p MinT-DELAY Earth fault overcur-
rent
0.00..30.00 sec 1.20 sec 3I0p Minimum Time Delay
3143 3I0p Time Dial Earth fault overcur-
rent
0.05..3.00 sec; ∞ 0.50 sec 3I0p Time Dial
3144 3I0p Time Dial Earth fault overcur-
rent
0.50..15.00; ∞ 5.00 3I0p Time Dial
3145 3I0p Time Dial Earth fault overcur-
rent
0.05..15.00 sec; ∞ 1.35 sec 3I0p Time Dial
3146 3I0p MaxT-DELAY Earth fault overcur-
rent
0.00..30.00 sec 5.80 sec 3I0p Maximum Time Delay
3147 Add.T-DELAY Earth fault overcur-
rent
0.00..30.00 sec; ∞ 1.20 sec Additional Time Delay
3148 3I0p Telep/BI Earth fault overcur-
rent
NO
YES
NO Instantaneous trip via Teleprot./BI
3149 3I0p SOTF-Trip Earth fault overcur-
rent
NO
YES
NO Instantaneous trip after SwitchOnTo-
Fault
3150 3I0p InrushBlk Earth fault overcur-
rent
NO
YES
NO Inrush Blocking
3151 IEC Curve Earth fault overcur-
rent
Normal Inverse
Very Inverse
Extremely Inverse
Long time inverse
Normal Inverse IEC Curve
3152 ANSI Curve Earth fault overcur-
rent
Inverse
Short Inverse
Long Inverse
Moderately Inverse
Very Inverse
Extremely Inverse
Definite Inverse
Inverse ANSI Curve
3153 LOG Curve Earth fault overcur-
rent
Logarithmic inverse Logarithmic inverse LOGARITHMIC Curve
3154 3I0p Startpoint Earth fault overcur-
rent
1.0..4.0 1.1 Start point of inverse characteristic
3160 POLARIZATION Earth fault overcur-
rent
with U0 and IY (dual polar-
ized)
with IY (transformer star
point current)
with U2 and I2 (negative
sequence)
withU0andIY(dualpolar-
ized)
Polarization
3162A Dir. ALPHA Earth fault overcur-
rent
0..360 ° 338 ° ALPHA, lower angle for forward direc-
tion
3163A Dir. BETA Earth fault overcur-
rent
0..360 ° 122 ° BETA, upper angle for forward direc-
tion
3164 3U0> Earth fault overcur-
rent
0.5..10.0 V 0.5 V Min. zero seq.voltage 3U0 for polariz-
ing
3165 IY> Earth fault overcur-
rent
0.05..1.00 A 0.05 A Min. earth current IY for polarizing
3166 3U2> Earth fault overcur-
rent
0.5..10.0 V 0.5 V Min. neg. seq. polarizing voltage 3U2
3167 3I2> Earth fault overcur-
rent
0.05..1.00 A 0.05 A Min. neg. seq. polarizing current 3I2
3170 2nd InrushRest Earth fault overcur-
rent
10..45 % 15 % 2nd harmonic ratio for inrush restraint
3171 Imax InrushRest Earth fault overcur-
rent
0.50..25.00 A 7.50 A Max.Current, overriding inrush
restraint
3172 SOTF Op. Mode Earth fault overcur-
rent
with Pickup (non-directional)
with Pickup and direction
with Pickup and direction Instantaneous mode after Switch-
OnToFault
Addr. Setting Title Function Setting Options Default Setting Comments
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