During open circuit test of a transformer

A)
primary is supplied rated voltage
B)
primary is supplied full-load current
C)
primary is supplied rated kVA
D)
primary is supplied current at reduced voltage

Correct Answer : Option (A) :   primary is supplied rated voltage

Recently Updated in Transformers Questions
Which of the following parts of a transformer is visible from outside?
A)
Core
B)
Bushings
C)
Primary winding
D)
Secondary winding

Correct Answer :   Bushings

A no-load test is performed on a transformer to determine
A)
efficiency
B)
copper loss
C)
magnetising current
D)
magnetising current and loss

Correct Answer :   magnetising current and loss

Natural oil cooling is used for transformers up to a rating of
A)
250 kVA
B)
500 kVA
C)
1000 kVA
D)
3000 kVA

Correct Answer :   3000 kVA

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