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4 Technical Data
4.2
Definite-Time Overcurrent Protection (I>, ANSI 50/51; I>>, ANSI
50/51/67)
Setting Ranges / Increments
Times
Dropout Ratio
Tolerances
306
Pickup Current I>
Pickup Current I>>
Delay times T
Undervoltage Seal-In U (phase-to-phase)
Holding Time of Undervoltage Seal-In
Directional limit line angle tolerance I>>
The set times are pure delay times.
Pickup times (without inrush restraint, with restraint add 10 ms)
I >, I>>
Current = 2 × Pickup Value
Current = 10 × Pickup Value
Dropout Times
I >, I>>
Dropout ratio overcurrent I>
Dropout ratio overcurrent I>>
Dropout ratio undervoltage
Dropout difference ∆ϕ
Pickup current I>, I>>
Undervoltage Seal-In U<
Delay times T
Directional limit lines angle
for I
= 1 A
0.05 A to 20.00 A
N
for I
= 5 A
0.25 A to 100.00 A
N
for I
= 1 A
0.05 A to 20.00 A
N
for I
= 5 A
0.25 A to 100.00 A
N
0.00 s to 60.00 s
or ∞ (ineffective)
10.0 V to 125.0 V
0.10 s to 60.00 s
–90° el. to +90° el.
approx. 35 ms
approx. 25 ms
.
approx. 50 ms
approx. 0.95 for I/I
0.90 to 0.99
(Increments 0.01)
approx. 1.05
2 ° electrical
for I
= 1 A
1 % of setting value or 10 mA
N
for I
= 5 A
5 % of setting value or 50 mA
N
1 % of setting value or 0.5 V
1 % or 10 ms
1° electrical
Increments
0.01 A
Increments
0.05 A
Increments
0.01 A
Increments
0.05 A
Increments 0.01 s
Increments 0.01V
Increments 0.01 s
Increments 1°
≥ 0.3
N
7UM61 Manual
C53000-G1176-C127-3
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