Relationship
Ι
2
/
Ι
1
measurement
for
Ι
Nom
= 1 A
Positive or negative sequence system current > 0.1 A
for
Ι
Nom
= 5 A
Positive or negative sequence system current > 0.5 A
Times
Pickup times:
Current, voltage (phase quantities)
for 2 times the setting value
for 10 times the setting value
approx. 30 ms
approx. 20 ms
Current, voltage (symmetrical components)
for 2 times the setting value
for 10 times the setting value
approx. 40 ms
approx. 30 ms
Power
typical
maximum (small signals and threshold values)
approx. 120 ms
approx. 350 ms
Power factor
300 to 600 ms
Frequency
approx. 100 ms
Frequency change for 1.25 times the setting value
approx. 220 ms
Voltage change dV/dt for 2 times the setting value
approx. 220 ms
Binary input
approx. 20 ms
Dropout times:
Current, voltage (phase quantities)
< 20 ms
Current, voltage (symmetrical components)
< 30 ms
Power
typical
maximum
< 50 ms
< 350 ms
Power factor
< 300 ms
Frequency
< 100 ms
Frequency change
< 200 ms
Binary input
< 10 ms
Tolerances
Pickup thresholds:
Current
for
Ι
Nom
= 1 A 3% of setting value or 15 mA
for
Ι
Nom
= 5 A 3% of setting value or 75 mA
Current (symmetrical components)
for
Ι
Nom
= 1 A 4% of setting value or 20 mA
for
Ι
Nom
= 5 A 4% of setting value or 100 mA
Current (
Ι
2
/
Ι
1
)
4% of setting value
Voltage
3% of setting value or 0,2 V
Voltage (symmetrical components)
4% of setting value or 0,2 V
Voltage change dV/dt
5 % of setting value or 2 V/s
Power
for
Ι
Nom
= 1 A 3% of setting value or 0,5 W
for
Ι
Nom
= 5 A 3% of setting value or 2,5 W
Power factor
3°
Frequency
15 mHz
Frequency change
5% of setting value or 0,05 Hz/s
Technical Data
4.16 Flexible Protection Functions
SIPROTEC 4, 7SD80, Manual
287
E50417-G1100-C474-A2, Edition 02.2018
Summary of Contents for SIPROTEC 4 7SD80
Page 8: ...8 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 10: ...10 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 18: ...18 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 248: ...248 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 298: ...298 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 312: ...312 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 322: ...322 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 400: ...400 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...
Page 402: ...402 SIPROTEC 4 7SD80 Manual E50417 G1100 C474 A2 Edition 02 2018 ...