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SIPROTEC 7SJ81/7SK81 V4.70, Product Information
E50417-K1150-C462-A2, Edition 02.2012
10
Limit Values of Inputs and Outputs
Current Inputs
Measuring range V
eff
0 V to 17.7 V
Measuring accuracy
0.5 % of the measured value or 0.5 mV
Protection accuracy
2 % of the measured value or 2 mV
Voltage Inputs
Secondary rated voltage V
N
3 V to 17 V
Measuring range V
eff
0V bis 50 V
Measuring accuracy
0.5 % of the measured value or 5 mV
Protection accuracy
3 % of the measured value or 50 mV
Influence of temperature on accuracy
Temperarture in range
-5 °C (41 °F) to +55 °C (131 °F)
Currents
0.15 %/10 K
Voltage
0.2 %/10 K
Power Supply
Direct Voltage
Voltage Supply via Integrated Converter:
Permissible AC Ripple Voltage,
peak to peak
≤
15 % of the Power Supply Voltage
Alternating Voltage
Voltage Supply via Integrated Converter:
Rated Power Supply
Direct Voltage
24 V to 48 V
60 V to 250 V
Permissible Voltage Ranges
19 V to 58 V
48 V to 300 V
Rated Power Supply
Alternating Voltage
115 V
230 V
Permissible Voltage Ranges
92 V to 132 V
184 V to 265 V