Light load adjustment involves _________(a) applying rated voltage across the pressure coil(b) adjusting a light load(c) applying rated current across the transformer(d) applying rated voltage across the current coilThis question was addressed to me in quiz.This is a very interesting question from Electronic Energy Meter, Adjustments in Single Phase Energy meters in chapter Measurement of Power and Related Parameters of Electrical Measurements

Light load adjustment involves _________(a) applying rated voltage acr

1.	Light load adjustment involves _________(a) applying rated voltage across the pressure coil(b) adjusting a light load(c) applying rated current across the transformer(d) applying rated voltage across the current coilThis question was addressed to me in quiz.This is a very interesting question from Electronic Energy Meter, Adjustments in Single Phase Energy meters in chapter Measurement of Power and Related Parameters of Electrical Measurements
Answer» Right option is (a) applying RATED VOLTAGE across the pressure coil Explanation: Disc rotation is adjusted in such a WAY that CORRECT speed is maintained. The pressure coil is supplied with the rated voltage and the current coil is PROVIDED with only about 5 % of the full load at u.p.f.

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