Protective Relay Settings: motor_surge_withstand
Protective relay settings, coordination parameters, and motor/bus protection data per IEEE C37, IEEE 242, IEC 60255, and IEEE 3004 series. Covers: IEEE C37.112 inverse time-overcurrent curve constants (A, B, p, tr) and IEC 60255-151 constants (k, alpha); CT accuracy classes C100/C200/C400/C800 per IEEE C57.13; relay pickup guidance by ANSI device number; CTI per IEEE 242; motor nameplate voltages, surge withstand levels, vibration limits, and relay alarm/trip thresholds per IEEE 3004.8-2016; ANSI device function numbers for motor and bus protection (Tables B.1/B.2/B.3); online partial discharge assessment thresholds; and dual-tie bus differential CT scheme fault response results per IEEE 3004.11-2019.
| parameter type | record id | description | rated voltage V | standard | surge withstand iec kV | surge withstand nema kV |
|---|---|---|---|---|---|---|
| motor_surge_withstand | sw_13800 | Surge withstand voltage for 13800 V rated motors | 13800 V | IEEE Std 3004.8-2016 | 60 kV | 51 kV |
| motor_surge_withstand | sw_2400 | Surge withstand voltage for 2400 V rated motors | 2400 V | IEEE Std 3004.8-2016 | 15 kV | 9 kV |
| motor_surge_withstand | sw_4160 | Surge withstand voltage for 4160 V rated motors | 4160 V | IEEE Std 3004.8-2016 | 22 kV | 15 kV |
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