For a 20kVA transformer with a turn ratio of 0.4 what amount of total power is transferred inductively?

Electrical and Electronic Engineering (EEE) : Transformers - Quiz(MCQ)

8kVA

10kVA

12kVA

50kVA

Correct Answer : Option (C) : 12kVA

Explanation : For an auto transformer power is transferred partially inductively and partially conductively. Thus, out of total power, power transferred inductively is given by (1-k)*total power= 0.6*20= 12kVA.

Recently Updated in Transformers Questions

Which of the following parts of a transformer is visible from outside?

Core

Bushings

Primary winding

Secondary winding

Correct Answer : Bushings

A no-load test is performed on a transformer to determine

efficiency

copper loss

magnetising current

magnetising current and loss

Correct Answer : magnetising current and loss

Natural oil cooling is used for transformers up to a rating of

250 kVA

500 kVA

1000 kVA

3000 kVA

Correct Answer : 3000 kVA

EEE MCQ's