Calculate the percentage error at full load

Posted on 2014-01-16 14:02:00 in Engineering by ADLER

A single-phase energy meter of the induction type is rated 230V, 10S, 50 H, and has a meter constant of 600 rev/ kwh when correctly adjusted. If ‘quadrature’ adjustment is slightly disturbed so that the lag is 85, calculate the percentage error at full load, 0.8 p.f. lag.

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