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Technical Data
4.19 Flexible Protection Functions
Tolerances
Pickup thresholds:
Current
Current (symmetrical components)
Current (I
/I
2
1
Voltage
Voltage (symmetrical components)
Voltage change dV/dt
Power
Power factor
Frequency
Frequency change
Times
Influencing Variables for Pickup Values
Auxiliary DC voltage in range 0.8 ≤ V
Temperature in range
–5 °C (41 °F) ≤ Θ
Frequency in range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
or 60 Hz)
Frequency outside range 0.95 ≤ f/f
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
400
)
Aux
≤ 55 °C (131 °F)
amb
Nom
Nom
for I
= 1 A
3% of setting value or 15 mA
Nom
for I
= 5 A
3% of setting value or 75 mA
Nom
for I
= 1 A
4% of setting value or 20 mA
Nom
for I
= 5 A
4% of setting value or 100 mA
Nom
4% of setting value
3% of setting value or 0.2 V
4% of setting value or 0.2 V
5 % of setting value or 2 V/s
for I
= 1 A
3% of setting value or 0.5 W
Nom
for I
= 5 A
3% of setting value or 2.5 W
Nom
3°
15 mHz
5% of setting value or 0.05 Hz/s
1% of setting value or 10 ms
≤ 1.15
/V
1 %
AuxNom
0.5 %/10 K
≤ 1.05 (f
= 50 Hz
1 %
Nom
≤ 1.05
Increased tolerances
1 %
1 %
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
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