Siemens SIPROTEC 7SD80 - Page 315

Technical Data
4.11 Voltage Protection (Optional)
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
315
Undervoltages Phase-to-Phase
Undervoltage Positive Sequence System V
1
Undervoltage V
PhPh
<< 1.0 V to 175.0 V Increments 0.1 V
Delay T
VPhPh<<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Undervoltage V
PhPh
< 1.0 V to 175.0 V Increments 0.1 V
Delay T
VPhPh<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 1.01 to 1.20 Increments 0.01
Current criterion can be switched on/off
Pickup time approx. 40 ms
Dropout time approx. 35 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms
Undervoltage V
1
<< 1.0 V to 100.0 V Increments 0.1 V
Delay T
V1<<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Undervoltage V
1
< 1.0 V to 100.0 V Increments 0.1 V
Delay T
V1<
0.00 s to 100.00 s; ∞ Increments 0.01 s
Dropout ratio 1.01 to 1.20 Increments 0.01
Current criterion can be switched on/off
Pickup time approx. 40 ms
Dropout time approx. 35 ms
Tolerances Voltages 3 % of setting value or 1 V
Times 1 % of setting value or 10 ms