... To measure: voltage, current, active power, reactive power, power factor, frequency, Kwh, 4 quadrant energy, etc. Total 28 electrical ... current, power factor, active power, reactive power;7) Transformed analog output 4-20mA for voltage, current, active power, reactive power, frequency, power factor ... basic unit and optional modules4. 10 years back-up of integrated energy data5. Large LCD, high ...