Question

QUESTION
For 100 KVA, 11000V/110V single phase transformer, the secondary full load current is
A. 90.90 Amp
B. 9090.9 Amp
C.909.0 Amp
D. 9.09 Amp
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Ans. C​

Answer 1

Given:

KVA = 100 KVA

To find:

secondary current Is =?

Explanation:

The secondary current is a momentary current induced in a closed circuit by a current of electricity passing through the same or a contiguous circuit at the beginning and also at the end of the passage of the primary current.

The secondary current is given by

$\displaystyle I_s = \frac{VA}{\sqrt{3}\ VL }$

    = $\displaystyle \frac{100000}{1.732 \times 100}$

Is = 909.0 A

The secondary full load current is 909 A.