Technical Data P44x/EN TD/E33
MiCOM P441/P442 & P444
Page 1/30
CONTENT
1. RATINGS 5
1.1 Currents 5
1.2 Voltages 5
1.3 Auxiliary Voltage 6
1.4 Frequency 6
1.5 Logic inputs 6
1.6 Output Relay Contacts 7
1.7 Field Voltage 7
1.8 Loop through connections 7
1.9 Wiring requirements 7
2. BURDENS 8
2.1 Current Circuit 8
2.2 Voltage Circuit 8
2.3 Auxiliary Supply 8
2.4 Optically-Isolated Inputs 8
3. ACCURACY 9
3.1 Reference Conditions 9
3.2 Measurement Accuracy 9
3.3 Protection accuracy 10
3.4 Influencing Quantities 12
3.5 High Voltage Withstand IEC60255-5:1977 12
3.5.1 Dielectric Withstand 12
3.5.2 Impulse 12
3.5.3 Insulation Resistance 12
4. ENVIRONMENTAL COMPLIANCE 13
4.1 Electrical Environment 13
4.1.1 DC Supply Interruptions IEC60255-11:1979 13
4.1.2 AC Ripple on DC Supply IEC60255-11:1979 13
4.1.3 Disturbances on AC Supply - EN61000-4-11:1994 13
4.1.4 High Frequency Disturbance IEC60255-22-1:1988 13
4.1.5 Fast Transient IEC60255-22-4:1992 13
4.1.6 Electrostatic Discharge IEC60255-22-2:1996 13
4.1.7 Conducted Emissions EN 55011:1991 13
4.1.8 Radiated Emissions EN 55011:1991 13
4.1.9 Radiated Immunity IEC60255-22-3:1989 14
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