9424200996 61-7
BE1-11m Frequency (81) Test
Underfrequency Pickup Verification
Pickup Setting Range = 15 to 110 Hz
Pickup Accuracy = ±0.01 Hz
Reset = 0.02 Hz ±0.01 Hz of the actual pickup value
Step
Low
High
Low*
High*
Pass/Fail
* Reset range is calculated from the pickup setting and may need adjusted based on actual pickup.
Time Delay Verification
Time Delay Range = 0 to 600,000 ms
Timing Accuracy = ±0.5% or ±1 cycle, whichever is greater + 3 cycles recognition time for time delay
settings < 50 ms
Pickup Verification (ROC Frequency)
ROC Pickup Setting Range = 0.2 to 20 Hz/sec
Accuracy = ±2% or ±0.1 Hz/sec, whichever is greater
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