Siemens SIPROTEC 7SK80 User Manual

Technical Data
4.17 Flexible Protection Functions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
381
Times
Tolerances
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
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 thresholds:
Current for
I
Nom
= 1 A
3% of setting value or 15 mA
for I
Nom
= 5 A 3% of setting value or 75 mA
Current (symmetrical components) for
I
Nom
= 1 A
4% of setting value or 20 mA
for
I
Nom
= 5 A
4% of setting value or 100 mA
Current (I
2
/I
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
Power for I
Nom
= 1 A 3% of setting value or 0.5 W
(for nominal values)
for I
Nom
= 5 A 3% of setting value or 2.5 W
(for nominal values)
Power factor 3°
Frequency 15 mHz
Frequency change 5% of setting value or 0.05 Hz/s
Times 1% of setting value or 10 ms

Siemens SIPROTEC 7SK80 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SK80
Category	Protection Device
Language	English