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1600 V rated 8 SCRs are connected in series. The operation voltage of the string is 4400. Calculate the string efficiency.(a) 34.37 %(b) 30.15 %(c) 38.48 %(d) 35.84 %I have been asked this question in an interview.I'd like to ask this question from Solid-State Switching Circuits in portion Introduction to Solid-State Switching Circuits of Electric Drives

Answer»

The correct CHOICE is (a) 34.37 %

The BEST I can EXPLAIN: The string efficiency can be CALCULATED using the formula

operation VOLTAGE ÷ (Number of SCRs×Rated voltage) = 4400÷(1600×8) = 34.37 %.



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