If the per unit leakage impedance for the primary of a transformer is – McqOptions

MCQOPTIONS

1.	If the per unit leakage impedance for the primary of a transformer is ‘x’ on the given rated base value. If the voltage and volt-amperes are doubled, then the changed per unit impedance will be ___________
A.	0.5x
B.	2x
C.	4x
D.	x
Answer» B. 2x

Discussion

No Comment Found

Related MCQs

If the pu impedance of a single phase transformer is 0.01+j0.05, then its regulation at p.f. of 0.8 leading will be?
If the pu impedance of a single phase transformer is 0.01+j0.05, then its regulation at p.f. of 0.8 lagging will be?
A 200/400 V single phase transformer has leakage impedance z= r+jx. Then we can expect zero voltage regulation at power factor of ___________
With the reference of the diagram below, Choose the most appropriate.A: B:
While estimating voltage regulation of a transformer, keeping ___________
The voltage regulation for transformer is given by ___________
If the per unit leakage impedance for the primary of a transformer is ‘x’ on the given rated base value. If the voltage and volt-amperes are halved, then the changed per unit impedance will be ___________
If the per unit leakage impedance for the primary of a transformer is ‘x’ on the given rated base value. If the voltage and volt-amperes are doubled, then the changed per unit impedance will be ___________
While conducting testing on the single phase transformer, one of the student tries to measure the resistance by putting an ammeter across one terminal of primary and other to secondary, the reading obtained will be ___________
While conducting open circuit test and short circuit test on a transformer, status of low-voltage and high-voltage windings will be such that in ____________