91
UMG 508
Network quality parameters
Specifications
(Measurement using current converters ../5A)
Function Symbol Accuracy class Measur. range Display range
Frequency f 0.05 (IEC61557-12) 40 .. 70 Hz 40 Hz .. 70 Hz
Phase current I 0.2 (IEC61557-12) 0.001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current measured IN 0.2 (IEC61557-12) 0.001 .. 7.4 Arms 0 A .. 9999 kA
Neutral cond. current calculated INc 0.5 (IEC61557-12) 0.001 .. 22.2 A 0 A .. 9999 kA
Voltage U L-N 0.1 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage U L-L 0.1 (IEC61557-12) 18 .. 1000 Vrms 0 V .. 9999 kV
Short-time flicker, long-time fli. Pst, Plt - - -
Voltage drops (L-N) Udip 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage rises (L-N) Uswl 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage interruptions Uint - - -
Voltage unbalance (L-N)
1)
Unba 0.2 (IEC61557-12) 10 .. 600Vrms 0 V .. 9999 kV
Voltage inbalance (L-N)
2)
Unb 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kV
Voltage harmonics Uh cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %
Current harmonics Ih cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %
Network signal voltage MSV - - -
1) Reference to amplitude.
2) Reference to phase and amplitude.
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