Siemens SIPROTEC 7SD80, Manual

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Technical Data
4.1 General Device Data
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
282
4.1 General Device Data
4.1.1 Analog Inputs
Current Inputs
1)
only in models with input for sensitive ground fault detection (see ordering data in Appendix A.1)
Voltage inputs
Nominal Frequency f
Nom
50 Hz or 60 Hz (adjustable)
Operating range frequency (not dependent on
the nominal frequency 25 Hz to 70 Hz
Nominal current
I
Nom
1 A or 5 A
Ground current, sensitive
I
Ns
≤
1.6·
I
Nom
linear range
1)
Burden per phase and ground path
- at
I
Nom
= 1 A
- at
I
Nom
= 5 A
- for sensitive ground fault detection at 1 A
≤
0.05 VA
≤
0.3 VA
≤
0.05 VA
Load capacity current path
- thermal (rms)
- dynamic (peak value)
500 A for 1 s
150 A for 10 s
20 A continuous
1250 A (half-cycle)
Load capacity input for sensitive ground fault detection I
Ns
1)
- thermal (rms)
- dynamic (peak value) 300 A for 1 s
100 A for 10 s
15 A continuous
750 A (half-cycle)
Nominal voltage 34 V – 225 V (adjustable) for connection of
phase-to-ground voltages
34 V – 200 V (adjustable) for connection of
phase-to-phase voltages
Measuring Range 0 V to 200 V
Burden at 100 V approx. 0.005 VA
Overload capacity in the voltage path
– thermal (rms) 230 V continuous