Basler Electric BE1-11t - Manual (Page 462)

450 9424200995 Rev H
Minimum Restraint Pickup (I
op
)
Setting Range ........................................................... 0.1 to 1.00 per unit
2 nd Slope Pickup (I
res
)
Setting Range ........................................................... 0.1 to 20.0 per unit
Restraint Slope 1
Setting Range ........................................................... 5 to 100%
Restraint Slope 2
Setting Range ........................................................... 15 to 140%
Time Delay
Setting Range ........................................................... 0 to 60,000 ms
Accuracy....................................................................
±0.5% or ±½ cycle, whichever is greater, plus trip
time for instantaneous response (0.0 setting) *
* Trip Time for 0.0 Delay Setting .............................. 1¼ cycles maximum for currents ≥ 5 times the pickup
setting. 1¾ cycles maximum for a current of 2
times pickup. Two cycles maximum for a current
of 1.05 times the pickup setting.
87N - Neutral Current Differential Protection
Iop Minimum Pickup
5 Ampere CT
Setting Range ........................................................... 0.1 to 5 A
Accuracy....................................................................
±3% or ±75 mA, whichever is greater
1 Ampere CT
Setting Range ........................................................... 0.02 to 1 A
Accuracy.................................................................... 5 A CT:
±3% or ±15 mA, whichever
Overcorrection Coefficient
Setting Range ........................................................... 1 to 1.3
Time Delay
Setting Range ........................................................... 0 to 60,000 ms
Accuracy....................................................................
±0.5% or ±½ cycle, whichever is greater, plus trip
time for instantaneous response (0.0 setting)
*
* Trip Time for 0.0 Delay Setting .............................. 1¼ cycles maximum for currents ≥ 5 times the pickup
setting. 1¾ cycles maximum for a current of 2
times pickup. Two cycles maximum for a current
of 1.05 times the pickup setting.
Automatic Setting Group Characteristics
Number of Setting Groups ........................................ 4
Control Modes
Automatic .................................................................. Cold-Load Pickup, Dynamic Load or Unbalance
External ..................................................................... Discrete Input Logic, Binary Input Logic
Switch Threshold
Range ........................................................................ 0.1 to 25 A (5 A), 0.02 to 5 A (1 A)
Accuracy....................................................................
±2% or ±0.05 A (5 A), ±2% or ±0.01 A (1 A)
Specifications BE1-11t