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Calculate the string efficiency if the de-rating factor is .429.(a) 48.1 %(b) 57.1 %(c) 47.8 %(d) 46.5 %The question was asked in semester exam.The above asked question is from Solid-State Switching Circuits in section Introduction to Solid-State Switching Circuits of Electric Drives

Answer»

The correct OPTION is (B) 57.1 %

Easiest explanation: The string efficiency is CALCULATED for series and parallel CONNECTION of SCRs. The value of string efficiency is 1-(De-rating factor)=1-.429=57.1 %.



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