Micom P634 - Settings - Typical Characteristic Data; Main Function; Differential Protection; Definite-Time and Inverse-Time Overcurrent Protection

2.8 Settings – Typical Characteristic Data
2.8.1 Main Function
●
Minimum output pulse for trip command: 0.1 to 10 s (adjustable)
●
Minimum output pulse for close command: 0.1 to 10 s (adjustable)
2.8.2 Differential Protection
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Operate time including output relay:
o
≤ 16 ms without inrush stabilization or operation of I
diff>>
, I
diff>>>
o
≤ 32 ms with inrush stabilization
●
Reset time (measured variable from fault infeed to 0): ≤ 30 ms, approx.
25 ms
2.8.3 Definite-Time and Inverse-Time Overcurrent Protection
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Operate time including output relay (measured variable from 0 to 2-fold
operate value): ≤ 40 ms, approx. 30 ms
●
Reset time (measured variable from 2-fold operate value to 0): ≤ 40 ms,
approx. 30 ms
●
Starting resetting ratio: approx. 0.95
2.8.4 Time-Voltage Protection
●
Operate time including output relay (measured variable from nominal value
to 1.2-fold operate value or measured variable from nominal value to 0.8-
fold operate value):
o
≤ 40 ms, approx. 30 ms
●
Reset time (measured variable from 1.2-fold operate value to nominal
value or measured variable from 0.8-fold operate value to nominal value):
o
≤ 45 ms, approx. 30 ms
●
Resetting ratio for V<>:
o
1% to 10% (adjustable)
2.8.5 Overfluxing Protection
Starting resetting ratio: approx. 0.95
2 Technical Data P634
P634/EN M/R-42-A // P634‑311‑653 2-17