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Location：Home > Questions > Energy Metering module > When the im1281b module is actually measuring, why is the measured voltage and current multiplied by the power not equal?

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When the im1281b module is actually measuring, why is the measured voltage and current multiplied by the power not equal?

Author：IRD    Time：2022.11.24    Hits：-

Answer: the calculation formula of standard active power is: voltage x current x power factor (uxixcos Φ）, Never lower 

the power factor. Our electric energy measurement mainly measures the active power, and the voltage x current is the 

apparent power.



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