Moving system of the induction type single phase energy meter has _________(a) heavy aluminium disc(b) light aluminium disc(c) medium aluminium disc(d) no aluminium discThe question was posed to me during an internship interview.This is a very interesting question from Induction Type Single Phase Energy Meter topic in chapter Measurement of Power and Related Parameters of Electrical Measurements

Moving system of the induction type single phase energy meter has ____

1.	Moving system of the induction type single phase energy meter has _________(a) heavy aluminium disc(b) light aluminium disc(c) medium aluminium disc(d) no aluminium discThe question was posed to me during an internship interview.This is a very interesting question from Induction Type Single Phase Energy Meter topic in chapter Measurement of Power and Related Parameters of Electrical Measurements
Answer» The CORRECT choice is (b) light aluminium disc For explanation I would say: Aluminium disc is provided in the air gap between the series and shunt MAGNETS. JEWEL bearings support the spindle. Hence the moving SYSTEM in an induction type single phase ENERGY meter consists of light aluminium disc.

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