Power transformers are characterized under open-circuit and short-circuit conditions. Open circuit, the power factor of the transformer is close to zero (<0.01), which demands very low phase error of the power analyzer. The analog design of the PM3000ACE ensures that its voltage and current channels are carefully matched, providing great performance at low power factors.
 Measurements
- Watts, Vrms, Vrmn, Arms, VA, VAr, Apk, Harmonics, THD, Inrush. K-factor and corrected power to IEEE and IEC standards
Advantages
- Accurate at low power factors
- Simultaneous measurement of rms and mean voltage as required by IEC76 and IEEEC57
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