Am working on a project that require accurate powerfactor measurement. Is the value of power factor calculated by ratio of realpower by apparent power accurate? As far as i came to know emonlib library measures rective power as product of the Root-Mean-Squared (RMS) average of the Voltage and the RMS average of the Current. Will this cause error in powerfactor readings?
Thanks in advance for helping me out.
Re: Powerfactor measurement
"Is the value of power factor calculated by ratio of realpower by apparent power accurate?"
Not only accurate, it is the DEFINITION ! ! !