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EDR-5000
IM02602007E
Rate of Change of Frequency:
df/dt
Accuracy
*1)
Threshold
±0.1 Hz/s
2)
t
±1% or ±10 ms
Operating time
Starting from fn and df/dt > 0.1 Hz/s
At df/dt > 2 times pickup
At df/dt > 5 times pickup
<200 ms
typically <100 ms
typically < 70 ms
Disengaging time
<120 ms
*1) Accurracy is given for rated frequency fn
±10%.
*2) 10% additional tolerance per Hz deviation from nominal frequency fn (e.g. at 45Hz, tolerance is 0.15Hz/s ).
Rate of Change of Frequency:
DF/DT
Accuracy
DF
±20 mHz at fn
DT
±1% or ±10 ms
Vector surge:
78V
Accuracy
Threshold
±0.5° [1-30°] at Vn and fn
Operating time
<40 ms
Power Factor:
PF-55D/PF-55A
Accuracy
Trigger-PF
± 0.01 (absolute) or ±1°
Reset-PF
± 0.01 (absolute) or ±1°
t-trip
±1% or ±10 ms
T-Pickup Comp
±1% or ±10 ms
T-Reset Comp
±1% or ±10 ms
Operating time
*1)
55D
<130 ms
55A
<200 ms
*1) The calculation of the Power Factor will be available 300 ms after the required measuring values (I > 2.5% In and V > 20% Vn) have energized
the measuring inputs.
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