Siemens siprotec 7SD5

4 Technical Data
562
7SD5 Manual
C53000-G1176-C169-1
Overvoltage Zero Sequence System 3U
0
or any Single-Phase Voltage U
X
Phase-earth Undervoltage
Phase-phase Undervoltages
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Overvoltage 3U
0
>> 1.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
3U0>>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Overvoltage 3U
0
> 1.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
3U0>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 0.30 to 0.98 Increments 0.01
Pickup times (fast relays/high-speed relays)
With repeated measurement approx. 75/70 ms
Without repeated measurement approx. 35/30 ms
Dropout time
With repeated measurement approx. 75 ms
Without repeated measurement approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Undervoltage U
Ph
<< 1.0 V to 100.0 V Increments 0.1 V
Delay T
UPh<<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Undervoltage U
Ph
< 1.0 V to 100.0 V Increments 0.1 V
Delay T
UPh<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio approx. 1.05
Current criterion Can be switched on/off
Pickup times (fast relays/high-speed relays) approx. 35/30 ms
Dropout time approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Undervoltage U
PhPh
<< 1.0 V to 175.0 V Increments 0.1 V
Delay T
UPhPh<<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Undervoltage U
PhPh
< 1.0 V to 175.0 V Increments 0.1 V
Delay T
UPhPh<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio approx. 1.05
Current criterion Can be switched on/off
Pickup times (fast relays/high-speed relays) approx. 35/30 ms
Dropout time approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
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