Siemens SIPROTEC 7SD610 Manual page 354

Technical Data
4.10 Voltage Protection (optional)
Phase-phase undervoltages
Undervoltage U <<
PhPh
Delay T
UPhPh<<
Undervoltage U <
PhPh
Delay T
UPhPh<
Drop-off to pickup ratio
Current criterion
Pickup time
Dropout time
Tolerances
Undervoltage positive sequence systemU
Undervoltage U <<
1
Delay T
U1<<
Undervoltage U <
1
Delay T
U1<
Drop-off to pickup ratio
Current criterion
Pickup time
Dropout time
Tolerances
354
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 to 1,20
Can be switched on/off
Approx. 40 ms
Approx. 35 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 to 1,20
Can be switched on/off
Approx. 40 ms
Approx. 35 ms
Voltages 3 % of setting value or 1 V
Times 1 % of set value or 10 ms
Increments 0.1 V
Increments 0.01 s
Increments 0.1 V
Increments 0.01 s
Increment 0.01
Increments 0.1 V
Increments 0.01 s
Increments 0.1 V
Increments 0.01 s
Increment 0.01
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011