In a transformer routine efficiency depends upon Options: A . &nbspsupply frequency B . &nbspload current C . &nbsppower factor of load D . &nbspboth (B) and (C)

In a transformer routine efficiency depends upon

Question

In a transformer routine efficiency depends upon

Options:

A . supply frequency

B . load current

C . power factor of load

D . both (B) and (C)

Answer: Option D

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Question 1. No-load on a transformer is carried out to determine....

Question 2. The dielectric strength of transformer oil is expected to be....

Question 3. A transformer oil must be free from....

Question 4. Losses which occur in rotating electric machines and do not occur in trans formers are....

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Question 6. Primary winding of a transformer....

Question 7. Negative voltage regulation is indicative that the load is....

Question 8. Which motor is preferred for use in mines where explosive gases exist?....

Question 9. Which type of winding is used in 3phase shell-type transformer?....

Question 10. The hum in a transformer is mainly attributed to....

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