Siemens Siprotec 7VK61 Manual page 252

Technical Data
4.5 Voltage Protection (optional)
Phase-phase undervoltages
Undervoltage U <<
PhPh
Delay T
UPhPh<<
Undervoltage U <
PhPh
Delay T
UPhPh<
Dropout to pickup ratio
Current criterion
Pickup time
Dropout time
Tolerances
Undervoltage Positive Sequence System U
Undervoltage U <<
1
Delay T
U1<<
Undervoltage U <
1
Delay T
U1<
Dropout to pickup ratio
Current criterion
Pickup time
Dropout time
Tolerances
252
1.0 V to 175.0 V
0.00 s to 100.00 s; ∞
1.0 V to 175.0 V
0.00 s to 100.00 s; ∞
1,01-1,20
Can be switched on/off
Approx. 35 ms (50 Hz) / approx. 30 ms (60 Hz)
Approx. 30 ms
Voltages 3 % of setting value or 1 V
Times 1 % of set value or 10 ms
1
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; ∞
1,01-1,20
Can be switched on/off
Approx. 35 ms (50 Hz) / approx. 30 ms (60 Hz)
Approx. 30 ms
Voltages 3 % of setting value or 1 V
Times 1 % of set value or 10 ms
Increments 0.1V
Steps 0.01 s
Increments 0.1V
Steps 0.01 s
Steps 0.01
Increments 0.1V
Steps 0.01 s
Increments 0.1V
Steps 0.01 s
Steps 0.01
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009