GE P24DM - NPSOC Directional Parameters; Stall Protection; Circuit Breaker Fail and Undercurrent Protection; Broken Conductor Protection

Disengagement < 40 ms
DT operate
+/- 2% or 70 ms, whichever is greater (1.05 – <2) Is
+/- 2% or 50 ms, whichev
er is greater (2 – 20) Is
DT Reset Setting +/- 5%
3.5.1 NPSOC DIRECTIONAL PARAMETERS
Directional boundary pick-up (RCA +/-90%) +/- 2°
Directional boundary hysteresis < 1°
IDMT operate
+/- 5% or 70 ms, whichever is greater (1.05 – <2) Is
+/- 5% or 50 ms, whichever is greater (2 – 20) Is
IDMT reset < 40 ms
DT operate
+/- 2% or 80 ms, whichever is greater (1.05 – <2) Is
+/- 2% or 60 ms, whichever is greater (2 – 20) Is
DT reset Setting +/- 5%
3.6 STALL PROTECTION
Pick-up Setting ±5%
Timer
± 2% or 40ms, whichev
er is greater
3.7 CIRCUIT BREAKER FAIL AND UNDERCURRENT PROTECTION
I< Pick-up Setting +/- 5% or 20 mA, whichever is greater
I< Drop-off 100% of setting +/- 5% or 20 mA, whichever is greater
Timers +/- 2% or 50 ms, whichever is greater
Reset time < 35 ms
3.8 BROKEN CONDUCTOR PROTECTION
Pick-up Setting +/- 2.5%
Drop-off 0.95 x Setting +/- 2.5%
DT operate +/- 2% or 55 ms, whichever is greater
3.9 SELECTIVE OVERCURRENT PROTECTION
Fast Block operation < 25 ms
Fast Block reset < 30 ms
Time delay Setting +/- 2% or 20 ms, whichever is greater
P24xM Chapter 21 - Technical Specifications
P24xM-TM-EN-2.1 437