Siemens SIPROTEC Manual page 621

Overvoltage negative sequence system U
Overvoltage U >>
2
Delay T
U2>>
Overvoltage U >
2
Delay T
U2>
Dropout ratio
Pick-up times
Dropout time
Tolerances
Overvoltage zero sequence system 3U
Overvoltage 3U >>
0
Delay T
3U0>>
Overvoltage 3U >
0
Delay T
3U0>
Dropout ratio
Pick-up times
With repeated measurement
Without repeated measurement
Dropout time
With repeated measurement
Without repeated measurement
Tolerances
Phase-earth undervoltages
Undervoltage U <<
Ph
Delay T
UPh<<
Undervoltage U <
Ph
Delay T
UPh<
Dropout ratio
Current criterion
Pick-up times
Dropout time
Tolerances
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
2
2.0 V to 220.0 V; ∞
0.00 s to 100.00 s; ∞
2.0 V to 220.0 V; ∞
0.00 s to 100.00 s; ∞
0.30 to 0.99
Approx. 35 ms
Approx. 30 ms
Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
or any single-phase voltage U
0
1.0 V to 220.0 V; ∞
0.00 s to 100.00 s; ∞
1.0 V to 220.0 V; ∞
0.00 s to 100.00 s; ∞
0.30 to 0.99
Approx. 75 ms
Approx. 35 ms
Approx. 75 ms
Approx. 30 ms
Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
1.0 V to 100.0 V
0.00 s to 100.00 s; ∞
1.0 V to 100.0 V
0.00 s to 100.00 s; ∞
1.01 to 1.20
Can be switched on/off
Approx. 35 ms
Approx. 30 ms
Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
4.19 Undervoltage and Overvoltage Protection (optional)
Increments 0.1 V
Increments 0.01 s
Increments 0.1 V
Increments 0.01 s
Increments 0.01
X
Increments 0.1 V
Increments 0.01 s
Increments 0.1 V
Increments 0.01 s
Increments 0.01
Increments 0.1 V
Increments 0.01 s
Increments 0.1 V
Increments 0.01 s
Technical Data
621