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A (350 A/ 7A), 50 Hz current transformer has a primary bar. The secondary burden is a pure resistance of 1 Ω and it draws a current of 5 A. The magnetic core requires 350 AT for magnetization. Find the percentage ratio error.(a) 10.56(b) -28.57(c) 11.80(d) -11.80This question was posed to me in an interview for internship.Question is taken from Advanced Problems on C.T. and P.T. topic in division Extension of Instrument Ranges of Electrical Measurements |
Answer» Correct OPTION is (B) -28.57 |
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