60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is______________________?

by

A. 76.3 %
B. 91.6 %
C. 83.3 %
D. 90.9 %

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