Siemens siprotec 7SA522 - General Technical Data

4 Technical Data
432
7SA522 Manual
C53000-G1176-C155-3
4.1 General
4.1.1 Analog Inputs and Outputs
Current Inputs
Voltage Inputs
Nominal Frequency f
N
50 Hz or 60 Hz (adjustable)
Rated current I
N
1 A or 5 A
Power Consumption per Phase and Earth Path
- at I
N
= 1 A Approx. 0.05 VA
- at I
N
= 5 A Approx. 0.3 VA
- for sensitive earth fault detection at 1A Approx. 0.05 VA
Current Overload Capability per Current Input
- thermal (rms) 100· I
N
for 1 s
30· I
N
for 10 s
4· I
N
continuous
- dynamic (pulse current) 250 · I
N
(Half-cycle)
Current Overload Capability for Sensitive Earth Current Input
- thermal (rms) 300 A for 1 s
100 A for 10 s
15 A continuous
- dynamic (pulse current) 750 A (Half-cycle)
Rated Voltage U
N
80 V to 125 V (adjustable)
Power consumption per phase at 100 V ≤ 0.1 VA
Voltage Overload Capability in Voltage Path per Input
- thermal (rms) 230 V continuous