Parameters of functions
Function Symbol Accuracy class Metering range Display range
Total real power P 0.5
5)
(IEC61557-12) 0 .. 5.4 kW 0 W .. 999 GW *
Total reactive power QA, Qv 1 (IEC61557-12) 0 .. 5.4 kvar 0 varh .. 999 Gvar *
Total apparent power SA, Sv 0.5
5)
(IEC61557-12) 0 .. 5.4 kVA 0 VA .. 999 GVA *
Total active energy Ea 0.5S
5)
6)
(IEC61557-12) 0 .. 5.4 kWh 0 Wh .. 999 GWh *
Total reactive energy ErA, ErV 1 (IEC61557-12) 0 .. 5.4 kvarh 0 varh .. 999 Gvarh *
Total apparent energy EapA, EapV 0.5
5)
(IEC61557-12) 0 .. 5.4 kVAh 0 VAh .. 999 GVAh *
Frequency f 0.05 (IEC61557-12) 45 .. 65 Hz 45.00 Hz .. 65.00 Hz
Phase current I 0.2 (IEC61557-12) 0 .. 6 Arms 0 A .. 999 kA
Measured neutral conductor current I4
IN - - -
Calculated neutral conductor current
INc 1.0 (IEC61557-12) 0.03 .. 25 A 0.03 A .. 999 kA
Voltage U L-N 0.2 (IEC61557-12) 10 .. 300 Vrms 0 V .. 999 kV
Voltage U L-L 0.2 (IEC61557-12) 18 .. 520 Vrms 0 V .. 999 kV
Displacement factor PFA, PFV 0.5 (IEC61557-12) 0.00 .. 1.00 0.00 .. 1.00
Short-term flicker, long-term flicker Pst, Plt - - -
Voltage dips (L-N) Udip - - -
Voltage surges (L-N) Uswl - - -
Transient overvoltages Utr - - -
Voltage interruptions Uint - - -
Voltage unbalance (L-N)
1)
Unba - - -
Voltage unbalance (L-N)
2)
Unb - - -
Voltage harmonics Uh Class 1 (IEC61000-4-7) up to 2.5 kHz 0 V .. 999 kV
THD of the voltage
3)
THDu 1.0 (IEC61557-12) up to 2.5 kHz 0 % .. 999 %
THD of the voltage
4)
THD-Ru - - -
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