Siemens 7SC80 - Voltage Protection 27, 59

Voltage Protection 27, 59
Setting Ranges/Increments
Undervoltages 27-1, 27-2
phase-specific phase x 27-1, phase x 27-2
Measured quantity used
with three-phase connection
- Positive-sequence system of voltages
- Smallest phase-to-phase voltage
- Smallest phase-to-ground voltage
Connection of phase-to-ground voltages:
- Evaluation of phase-to-ground voltages
- Evaluation of phase-to-phase voltages
- Evaluation of positive sequence system
10 V to 200 V
10 V to 385 V
10 V to 385 V
Increments 1 V
Increments 1 V
Increments 1 V
Connection of phase-to-phase voltages 10 V to 385 V Increments 1 V
Dropout ratio r for V<, V<<
1)
1.01 to 3.00 Increments 0.01
Dropout threshold for (r · V<) or (r · V<<) max.130 V for phase-to-phase voltage
max. 225 V for for phase-to-ground voltage
Minimum hysteresis 0.6 V
Time delays 27-1, 27-2 0.00 s to 100.00 s or
∞ (disabled)
Increments 0.01 s
Current criterion BkrClosed I MIN
for Ι
Nom
= 1 A
0.04 A to 1.00 A Increments 0.01 A
for Ι
Nom
= 5 A
0.20 A to 5.00 A
Overvoltages 59-1, 59-2
phase-specific phase x 59-1, phase x 59-2
Measured quantity used
with three-phase connection
- Positive sequence system of voltages
- Largest phase-to-phase voltage
- Largest phase-to-ground voltage
Connection of phase-to-ground voltages:
- Evaluation of phase-to-ground voltages
- Evaluation of phase-to-phase voltages
- Evaluation of positive sequence system
20 V to 240 V
20 V to 415 V
20 V to 240 V
Increments 1 V
Increments 1 V
Increments 1 V
Connection of phase-to-phase voltages:
- Evaluation of phase-to-phase voltages
- Evaluation of positive sequence system
20 V to 240 V
20 V to 240 V
Increments 1 V
Increments 1 V
Dropout ratio r for 59-1, 59-2
1)
0.90 to 0.99
Increments 0.01
Dropout threshold for (r · 59-1) or (r · 59-2) max. 240 V for phase-to-phase voltage
max. 415 V for phase-to-ground voltage Minimum
hysteresis 0.6 V
Time delay 59-1, 59-2
Phase-specific delay time Phx 59-1
0.00 s to 100.00 s or
∞ (disabled)
Increments 0.01 s
Displacement voltages V0>, V0>>, V0p
Measured quantity used - Vx measured
- VN measured
- 3V0 calculated
Setting ranges 1 V to 100 V Increments 1 V
Dropout ratio r for V0>, V0>>, V0p 0.90 to 0.99 Increments 0.01
4.8
Technical Data
4.8 Voltage Protection 27, 59
532 SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017