Technical Data
4.10 Voltage Protection (optional)
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
353
Overvoltage negative sequence system U
2
Overvoltage zero sequence system 3U
0
or any single-phase voltage U
X
Phase-earth undervoltages
Overvoltage U
2
>> 2.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
U2>>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Overvoltage U
2
>> 2.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
U2>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Drop-off to pickup ratio 0.30 to 0.99 Increment 0.01
Pickup time Approx. 40 ms
Dropout time Approx. 35 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of set value or 10 ms
Overvoltage U
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 U
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
Drop-off to pickup ratio 0.30 to 0.99 Increment 0.01
Pickup time
With repeated measurement Approx. 75 ms
Without repeated measurement Approx. 40 ms
Dropout time
With repeated measurement Approx. 75 ms
Without repeated measurement Approx. 35 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of set 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
Drop-off to pickup ratio 1,01 to 1,20 Increment 0.01
Current criterion Can be switched on/off
Pickup time ca. 40 ms
Dropout time Approx. 35 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of set value or 10 ms