50bf breaker failure protection (be1-700c), 51 time overcurrent protection (be1-700c), 59p phase overvoltage protection (be1-700v) – Basler Electric BE1-700 User Manual

Page 21: 50bf breaker failure protection (be1-700c) -9, 51 time overcurrent protection (be1-700c) -9, 59p phase overvoltage protection (be1-700v) -9

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∗ Trip Time for 0.0 Delay Setting

50TP, 50TN:

2¼ cycles maximum for currents

≥ 5 times the

pickup setting. Three cycles maximum for a
current of 1.5 times pickup. Four cycles maximum
for a current of 1.05 times the pickup setting.

50TQ:

3¼ cycles maximum for currents 5 times the
pickup setting. Four cycles maximum for a current
of 1.5 times pickup. Five cycles maximum for a
current of 1.05 times the pickup setting

50BF Breaker Failure Protection (BE1-700C)

Pickup

Setting Range:

Fixed at 0.5 A for 5 A unit, 0.1 A for 1 A unit

Accuracy:

±10%

Time Delay

Setting Range:

50 to 999 ms

Accuracy:

±0.5% or +1¼, –½ cycles, whichever is greater

Reset Time:

Within 1¼ cycles of the current being removed

51 Time Overcurrent Protection (BE1-700C)

Pickup

Setting Range

5 Ampere CT:

0.5 to 16 A

1 Ampere CT:

0.1 to 3.2 A

Accuracy (51P, 51N)

5 Ampere CT:

±2% or ±50 mA, whichever is greater

1 Ampere CT:

±2% or ±10 mA, whichever is greater

Accuracy (51Q)

5 Ampere CT:

±3% or ±75 mA, whichever is greater

1 Ampere CT:

±3% or ±15 mA, whichever is greater

Dropout/Pickup Ratio:

95%

Time Current Characteristic Curves

Timing Accuracy (All 51 Functions):

Within

±5% or ±1½ cycles, whichever is greater,

for time dial settings greater than 0.1 and
multiples of 2 to 40 times the pickup setting but
not over 150 A for 5 A CT units or 30 A for 1 A CT
units.
See Appendix A, Time Overcurrent Characteristic
Curves,
for information on available timing curves.

59P Phase Overvoltage Protection (BE1-700V)

Pickup

Setting Range:

10 to 300 V

Accuracy:

±2% of setting or ±1 V, whichever is greater

Dropout/Pickup Ratio:

98%

Time Delay

Setting Range:

0.050 to 600 s

Accuracy:

±0.5% or ±2.5 cycles, whichever is greater

9376700990 Rev M

BE1-700 General Information

1-9

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