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______________________?
(A) 76.3 %
(B) 91.6 %
(C) 83.3 %
(D) 90.9 %
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