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Technical Data
4.1 General Device Data
4.1
General Device Data
4.1.1
Analog Inputs
Current Inputs
Nominal Frequency
Operating range frequency (not dependent on
the nominal frequency
Nominal current
Ground current, sensitive
Burden per phase and ground path
- at I
= 1 A
Nom
- at I
= 5 A
Nom
- for sensitive ground fault detection at 1 A
- for sensitive ground fault detection at 5 A
Load capacity current path
- thermal (rms)
- dynamic (peak value)
Load capacity input for sensitive ground fault detection I
- thermal (rms)
- dynamic (peak value)
1)
only in models with input for sensitive ground fault detection (see ordering data in Appendix A.1)
Temperature Detectors at the I/O 2 Extension Module (only 7SK805/7SK806)
See chapter Temperature Detection
Voltage Inputs
Nominal voltage
Measuring Range
Burden
Overload capacity in the voltage path
– thermal (rms)
350
f
50 Hz or 60 Hz
Nom
25 Hz to 70 Hz
1 A or 5 A
I
Nom
≤ 1,6· I
I
Ns
Nom
≤ 0.05 VA
≤ 0.3 VA
≤ 0.05 VA
≤ 0.3 VA
500 A for 1 s
150 A for 10 s
20 A continuous
1250 A (half-cycle)
1)
Ns
300 A for 1 s
100 A for 10 s
15 A continuous
750 A (half-cycle)
34 V – 225 V (adjustable) for connection of
phase-to-ground voltages
34 V – 200 V (adjustable) for connection of
phase-to-phase voltages
0 V to 200 V
at 100 V
approx. 0.005 VA
230 V continuous
E50417-G1140-C344-A5, Release date 11.2012
(adjustable)
1)
linear range
SIPROTEC, 7SK80, Manual
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