Technical Data
4.21 Flexible Protection Functions
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
522
Times
Tolerances
Pickup times:
Current, voltage (phase quantities)
2 times pickup value
10 times pickup value
approx. 30 ms
approx. 20 ms
Current, voltage (symmetrical components)
2 times pickup value
10 times pickup value
approx. 40 ms
approx. 30 ms
Power
typical
maximum ((small signals and thresholds)
approx. 120 ms
approx. 350 ms
Power factor
300 to 600 ms
Frequency
approx. 100 ms
Frequency change for 1.25 times pickup 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
Pickup tresholds:
Current
for
I
Nom
= 1 A 1% of setting value or 10 mA
for
I
Nom
= 5 A 1% of setting value or 50 mA
Current (symmetrical components)
for
I
Nom
= 1 A 2% of setting value or 20 mA
for
I
N
om = 5
A
2% of setting value or 100 mA
Current (
I
2
/
I
1
)
2% of setting value
Voltage
1% of setting value or 0,1 V
Voltage (symmetrical components)
2% of setting value or 0,2 V
Power
1% of setting value or 0,3 W
(for nominal values)
Power Factor
2°
Frequency
10 mHz
Frequency Change
5% of setting value or 0,05 Hz/s
Times
1% of setting value or 10 ms
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