Frequency Protection 81 Of Side 2 - Siemens 7SC80 Manual

Technical Data
4.25 Additional Applications with 6 Voltage Inputs
Times
Pickup times
- Undervoltage 27-1, 27-2, 27-1V
- Overvoltage 59-1, 59-2
- Overvoltage 59-1V
- Undervoltage phase x 27-1, phase x 27-2
- Overvoltage phase x 59-1, phase x 59-2
Dropout times
- Undervoltage 27-1, 27-2, 27-1V
- Overvoltage 59-1, 59-2
- Overvoltage 59-1 V
- Undervoltage phase x 27-1, phase x 27-2
- Overvoltage phase x 59-1, phase x 59-2
Tolerances
Voltage limit values
Voltage limit value displacement voltage
(measuring range 0 V to 300 V)
Delay times T
Influencing Variables for Pickup and Dropout Values
Auxiliary direct voltage in the range of 0.8 ≤ V
Temperature in the range of 23.00 °F (-5 °C) ≤ Θ
Frequency in the range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
Frequencies outside the range of 0.95 ≤ f/f
Harmonics
- up to 10 % 3. harmonic
- up to 10 % 5. harmonic
4.25.2

Frequency Protection 81 of Side 2

Setting Ranges/Increments
Number of frequency elements
Pickup values f> or f< at f
Pickup values f> or f< at f
Dropout threshold
= |pickup threshold – dropout threshold|
Delay times T
Undervoltage blocking
with three-phase connection: Positive-sequence
component V
1
578
, 27-2V
1 1
, 59-2 V
1 1
<, 27-2V
1 1
, 59-2V
1 1
PS
≤ 1.05 (f
Nom
≤ 1.05
Nom
= 50 Hz
Nom
= 60 Hz
Nom
approx. 50 ms
approx. 50 ms
approx. 60 ms
approx. 50 ms
approx. 50 ms
approx. 60 ms
3 % of setting value, or 1 V
2 % of setting value
1 % of setting value, or 10 ms
/V ≤ 1.15 1 %
PSNom
≤ 131.00 °F (55 °C) 0.5 %/10 K
amb
= 50 Hz or 60 Hz) 1 %
Nom
increased tolerances
1 %
1 %
4; each can be set to f> or f<
40.00 Hz to 60.00 Hz
50.00 Hz to 70.00 Hz
0.04 Hz to 1.00 Hz
0.00 s to 100.00 s or ∞
(unwirksam)
10 V to 150 V
E50417-G1140-C486-A8, Edition 07.2017
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 s
Increments 1 V
SIPROTEC Compact, 7SC80, Manual