Siemens 7SC80 - Voltage Protection for VX

Voltage Protection for Vx
Setting Ranges/Increments
Undervoltages 27-1, 27-2
Measured quantity used Connected single-phase phase-to-ground voltage
Connection: single-phase 10 V to 200 V Increments 1 V
Dropout ratio r for 27-1, 27-2
1)
1.01 to 3.00 Increments 0.01
Dropout threshold for (r · 27-1) or (r · 27-2) max. 225 V
Minimum hysteresis 0.6 V
Time delays 27-1 Delay, 27-2 Delay 0.00 s to 100.00 s or
∞ (disabled)
Increments 0.01 s
Overvoltages 59-1, 59-2
Measured quantity used
with single-phase connection
Connected single-phase phase-to-ground voltage
Connection: single-phase 20 V to 240 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. 260 V for phase-to-ground voltage Minimum
hysteresis 0.6 V
Minimum hysteresis 0.6 V
Time delay 59-1 Delay, 59-2 Delay
Phase-specific Ph x 59-1 Delay, Ph x 59-2 Delay
0.00 s to 100.00 s or
∞ (disabled)
Increments 0.01 s
1)
r = V
dropout
/V
pickup
Times
Pickup times
- Undervoltage 27-1, 27-2
- Overvoltage 59-1, 59-2
approx. 50 ms
approx. 50 ms
Dropout times
- Undervoltage 27-1, 27-2
- Overvoltage 59-1, 59-2
approx. 50 ms
approx. 50 ms
Tolerances
Voltage limit values
3 % of setting value or 1 V
Delay times T 1 % of setting value or 10 ms
Influencing Variables for Pickup and Dropout Values
Auxiliary direct voltage in the range of 0.8 ≤ V
PS
/V
PSNom
≤ 1.15 1 %
Temperature in the range of 23.00 °F (-5 °C) ≤ Θ
amb
≤ 131.00 °F (55 °C) 0.5 %/10 K
Frequency in the range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
Nom
≤ 1.05 (f
Nom
= 50 Hz or 60 Hz) 1 %
Frequencies outside the range of 0.95 ≤ f/f
Nom
≤ 1.05 increased tolerances
Harmonics
- up to 10 % 3. harmonic
- up to 10 % 5. harmonic
1 %
1 %
4.10
Technical Data
4.10 Voltage Protection for Vx
SIPROTEC Compact, 7SC80, Manual 535
E50417-G1140-C486-A8, Edition 07.2017