Induction watt-hour meter - Shading Ring & Power factor Compensator

Q.  In induction watt-hour meter, due to shunt magnet the torque is not zero power factor. It can be compensated by using
- Published on 10 Nov 15

a. Shading ring
b. Power factor compensator
c. Both (a) and (b)
d. None of these

ANSWER: Both (a) and (b)

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