Appendix: Technical Specifications; Inputs Ratings - Satec expertmeter EM720 Installation Manual

Appendix: Technical Specifications

Inputs Ratings

AC Voltage inputs
Reference voltage
U 57.73V up to
n
120V L-N (via PT)
Reference voltage
U 120V up to 277V
n
L-N
22
V1, V2, V3, VN and VG
Voltage rating:
3 x 57.73/100 V
3 x 63/110 V
3 x 69/120 V
3 x 57.73 V
3 x 63 V
3 x 69 V
Voltage range,
Crest factor
Temporary over voltage between live conductors
and earth
Transient over voltage between live conductors
and earth (from 15 μs up to milliseconds)
Starting voltage
Burden per phase
Overload withstand for 1 minute phase-to-ground
(IEC 62053-22, protective class II)
Rated impulse voltage
(IEC 62052-11, protective class II)
Terminals for wires size
Voltage rating:
3 x 120/207 V
3 x 220/380 V
3 x 230/400 V
3 x 277/480 V
3 x 220 V
3 x 230 V
3 x 277 V
Line to Neutral voltage range
Crest factor
Temporary over voltage between live conductors
and earth
Transient over voltage between live conductors
and earth (from 15 microseconds up to
milliseconds)
Starting voltage
Burden per phase
Overload withstand for 1 minute phase-to-ground
(IEC 62053-22, protective class II)
Rated impulse voltage
(IEC 62052-11, protective class II)
Terminals for wires size
50/60 Hz
0 up to 144 V
≥2 (voltage peak up to
300V)
240 V r.m.s
2 kV peak
0.5%U
n
< 0.2 VA
4000V r.m.s
6000V
2
2.5 up to 6 mm
0 up to 320 V r.m.s,
≥2 (voltage peak up to
700 V)
1.0 kV r.m.s
2kV
0.5%U
n
< 0.5 VA
4000V r.m.s
6000V peak
2
2.5 to 6 mm
Appendix: Technical Specifications