The efficiency of two identical transformers under load conditionscan be determined by
A)short-circuit test
B)back-to-back test
C)open circuit test
D)All of the above

Question

Quizplus · Accepted Answer

The back-to-back test, also known as the Sumpner's test, is specifically designed to determine the efficiency of two identical transformers under load conditions without the need to supply the full load power. This method involves connecting the transformers in parallel and loading them without actually supplying the full load, thus efficiently determining their performance under load conditions.

The Efficiency of Two Identical Transformers Under Load Conditionscan Be