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  1. Wyeman

    power factor calculations in LV and HV metering

    stevenal, I believe you mean sinusoidal PF = |cos(90-atan(kWtotal/kVARtotal))| The 90-atan(kWtotal/kVARtotal) would be the actual phase angle. Use absolute value around the cosine because you cannot have a negative PF. That PF formula works ok with wattless reactive power until you introduce...

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