TIDUEM8B March   2019  – February 2021

 

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3.2.1.3.2.2.1 Gain Calibration

Usually, gain correction for voltage and current can be done simultaneously for all phases. However, energy accuracy (%) from the reference meter for each individual phase is required for gain correction for active power. Also, when performing active power calibration for any given phase, the other phase must be turned OFF by turning off the current but leaving the other voltages still enabled.