Earth Fault Protection; Earth Fault Directional Parameters - GE MiCOM P40 Agile Technical Manual

P14x
3.4

EARTH FAULT PROTECTION

IDMT pick-up
DT pick-up
Drop-off (IDMT and DT)
IDMT Operate
IEEE reset
Pick-up and drop-off repeatability
DT operate
DT reset
IDMT pick-up
DT pick-up
Drop-off (IDMT and DT)
IDMT operate
IEEE reset
Pick-up and drop-off repeatability
DT operate time
DT reset time
Note:
Reference conditions: TMS = 1, TD = 1, IN> setting = 1 A with operating range of 2-20In
3.4.1

EARTH FAULT DIRECTIONAL PARAMETERS

Directional boundary pick-up (RCA +/- 90°)
Hysteresis
VN> pick-up
VN> drop-off
Directional boundary pick-up (RCA +/- 90°)
Hysteresis
VN2> pick-up
VN2> drop-off
IN2> pick-up
IN2> drop-off
P14xEd1-TM-EN-1
Accuracy - Measured
1.05 x setting +/-5%
Setting +/-5%
0.98 x setting +/-5%
+/-5% or 40 ms, whichever is greater*
+/-5% or 40 ms, whichever is greater
< 2.5%
+/-2% or 50 ms, whichever is greater
+/-5%
Accuracy - Derived
1.05 x setting +/-5%
Setting +/-5%
0.95 x setting +/-5%
+/-5% or 40 ms, whichever is greater*
+/-10% or 40 ms, whichever is greater
< 5%
+/-2% or 50 ms, whichever is greater
+/-2% or 50 ms, whichever is greater
Zero Sequence Polarising accuracy
+/-2°
<3°
Setting+/-10%
0.9 x Setting +/-10%
Negative Sequence Polarising accuracy
+/-2°
<3°
Setting+/-10%
0.9 x Setting +/-10%
Setting+/-10%
0.9 x Setting +/-10%
Chapter 23 - Technical Specifications
537