Siemens SIPROTEC

Technical Data
4.19 Undervoltage and Overvoltage Protection (optional)
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
620
4.19 Undervoltage and Overvoltage Protection (optional)
Phase-earth overvoltages
Phase-phase overvoltages
Overvoltage positive sequence systemU
1
Overvoltage U
Ph
>> 1.0V to 170.0V; ∞ Increments 0.1 V
Delay T
UPh>>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Overvoltage U
Ph
> 1.0 V to 170.0 V; ∞ Increments 0.1 V
Delay T
UPh>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 0.30 to 0.99 Increments 0.01
Pick-up times Approx. 35 ms
Dropout time Approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Overvoltage U
PhPh
>> 2.0V to 220.0V; ∞ Increments 0.1 V
Delay T
UPhPh>>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Overvoltage U
PhPh
> 2.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
UPhPh>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 0.30 to 0.99 Increments 0.01
Pick-up times Approx. 35 ms
Dropout time Approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Overvoltage U
1
>> 2.0V to 220.0V; ∞ Increments 0.1 V
Delay T
U1>>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Overvoltage U
1
> 2.0 V to 220.0 V; ∞ Increments 0.1 V
Delay T
U1>
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 0.30 to 0.99 Increments 0.01
Compounding Can be switched on/off
Pick-up times Approx. 35 ms
Dropout time Approx. 30 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms