Eaton EMR-4000 Installation, Operation And Maintenance Manual page 896

Undervoltage and Overvoltage
(Phase and Auxiliary)
27M[x] / 59M[x] / 27A[x] / 59A[x]
Pickup
Dropout Ratio
t
Operating Time
Starting from
V higher than 1.1 x pickup value for 59[x] or
V lower than 0.9 x pickup value for 27[x]
Disengaging Time
*2) For 59M elements, the dropout is adustable between 80 ...99%
*2) For 27M elements, the dropout is adustable between 101...110%
Voltage unbalance:
47[x]
Threshold
%(V2/V1)
t
Operating Time
Disengaging Time
*1) Negative-sequence voltage V2 must be ≥ 0.01 x Vn, V1 must be ≥ 0.1 x Vn.
Over Frequency Protection:
81O[x]
Threshold
Dropout ratio
t
Operating time
Starting from f higher than f> + 0.02 Hz
Disengaging time
Under Frequency Protection:
81U[x]
Threshold
Dropout ratio
t
Operating time
Starting from f lower than f< - 0.02 Hz
Disengaging time
EMR-4000
±1.5% of the setting value or 1% Vn
97% or 0.5% Vn for 59[x]
103% or 0.5% Vn for 27[x]
DEFT
±1% or ±10 ms
<35 ms
<45 ms
±2% of the setting value or 1% Vn
±1%
DEFT
±1% or ±10 ms
<60 ms
<40 ms
±10 mHz at fn
99.95% or 0.05% fn
±1% or ±10 ms
<100 ms
+ 0.1 Hz typically 70 ms
+ 2.0 Hz typically 50 ms
<120 ms
±10 mHz at fn
100.05% or 0.05% fn
±1% or ±10 ms
<100 ms
- 0.1 Hz typically 70 ms
- 2.0 Hz typically 50 ms
<120 ms
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Accuracy
*2)
*3)
Accuracy *1)
Accuracy *1)
Accuracy *1)
IM02602009E
896