Eaton EDR-5000 - Page 923

EDR-5000 IM02602007E
Low Voltage Ride Through Protection:
LVRT
Accuracy
Voltage Pickup (Start) ±1.5% of the setting value or 1% Vn
Voltage Dropout Ratio (Recover) Adjustable, at least 0.5% Vn
Tripping time delay ±1% from settings or ±10 ms
Operating Time
Starting from
V lower than 0.9 x pickup value
<35 ms
Disengaging Time <45 ms
Voltage unbalance:
47[x]
Accuracy
*1)
Threshold ±2% of the setting value or 1% Vn
%(V2/V1) ±1%
t DEFT
±1% or ±10 ms
Operating Time <60 ms
Disengaging Time <45 ms
*1) Negative-sequence voltage V2 must be ≥ 0.01 x Vn, V1 must be ≥ 0.1 x Vn.
Over Frequency Protection:
81O[x]
Accuracy
*1)
Threshold ±10 mHz at fn
Dropout < 0.05% fn
t ±1% or ±10 ms
Operating time
Starting from f higher than f> + 0.02 Hz
+ 0.1 Hz
+ 2.0 Hz
<100 ms
typically 70 ms
typically 50 ms
Disengaging time <120 ms
Under Frequency Protection:
81U[x]
Accuracy
*1)
Threshold ±10 mHz at fn
Dropout < 0.05% fn
t ±1% or ±10 ms
Operating time
Starting from f lower than f< - 0.02 Hz
- 0.1 Hz
- 2.0 Hz
<100 ms
typically 70 ms
typically 50 ms
Disengaging time <120 ms
Undervoltage-blocking Frequency: Accuracy
*1)
Blocking below 15% Vn for phase-voltage frequency
Vn: 0.57 * rated Main VT, for Wye connection
Vn: 1.0 * rated Main VT, for Open-Delta connection.
V Block f ±1.5% of the setting value or 1% Vn
Dropout ratio 120% or 0.5% Vn
*1) Accurracy is given for rated frequency fn±10%.
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