51 - inverse overcurrent protection, 59p - phase overvoltage protection – Basler Electric BE1-11g User Manual

Page 570

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558

9424200994 Rev N

Time Delay & Control Time
Setting Range ........................................................... 50 to 999 ms
Accuracy....................................................................

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

51 - Inverse Overcurrent Protection

Pickup
5 Ampere CT Setting Range ..................................... 0.5 to 16 A
1 Ampere CT Setting Range ..................................... 0.1 to 3.2 A
SEF Setting Range ................................................... 0.01 to 0.8 A
Unbalanced Setting Range ....................................... 2 to 100%
Dropout ..................................................................... 93 to 99% of the actual pickup value

3Phase, IA, IB, IC, IG Accuracy

5 Ampere CT .............................................................

±2% or ±50 mA, whichever is greater

1 Ampere CT .............................................................

±2% or ±10 mA, whichever is greater

SEF ...........................................................................

±(2.5% + 2.5 mA)

3I0, I1, I2 Accuracy

5 Ampere CT .............................................................

±3% or ±75 mA, whichever is greater

1 Ampere CT .............................................................

±3% or ±15 mA, whichever is greater

Unbalanced Accuracy

5 Ampere CT .............................................................

±2% of pickup setting

1 Ampere CT .............................................................

±2% of pickup setting

Time Current Characteristic Curves

Timing Accuracy (All 51 Functions) ..........................

±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.
Refer to the

Time Curve Characteristics

chapter

for information on available timing curves.

Voltage Restraint
Control/Restraint Range ............................................ 30 to 250 V
Accuracy....................................................................

±2% or ±1 V, whichever is greater

59P - Phase Overvoltage Protection

Pickup
Setting Range ........................................................... 1 to 300 V
Accuracy....................................................................

±2% or ±1 V, whichever is greater

Dropout/Pickup Ratio ................................................ 98%

±1%

Timing Mode

Definite Timing

Setting Range ........................................................... 50 to 600,000 ms
Accuracy....................................................................

±0.5% or ±2 cycles, whichever is greater

Inverse Timing

Setting Range ........................................................... 0 to 9.9
Accuracy....................................................................

±5% or ±2 cycles, whichever is greater

Refer to the

Time Curve Characteristics

chapter

for information on available timing curves.

Specifications

BE1-11g

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