... power, reactive power, power factor, frequency, Kwh, 4 quadrant energy, etc. Total 28 electrical parameters;2) 3 lines 4 digit ... Q5. Power factor—PFa, PFb, PFc, ∑PF6. Frequency7. Active energy—kWh8. Reactive energy– kvarh DW9 Series 3 phase coulometer DW9A-DC38DW9B-DC38DW9C ... 0.1HzPower Active / Reactive / Apparent power, accuracy 0.5%F.S.Energy Accuracy for Active Power and Reactive Power : 1%F ...