... 400V Overloading: 600V(continuous) 1. GeneralACR330EGH is a kind of electrical network analyzer designed by ACREL under the IEC norm, and ... -rate energy and 4-quadrant energies, harmonic and quality of electrical network analysis, 4 logic inputs, 3 relay outputs and ... factor, waveform factor, degree of voltage and current unbalance etc.., and users can analyze the electrical network quality with these ...