Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Current transformer Power transformer Auto transformer Potential transformer Current transformer Power transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 85% 75% 95 % 65% 85% 75% 95 % 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency Power efficiency Current efficiency None of the listed here Energy efficiency Power efficiency Current efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Cu loss at no load Cu loss at any desire load Iron loss at no load None of the listed here Cu loss at no load Cu loss at any desire load Iron loss at no load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability High silicon content All of the listed here Low hysteresis loss High permeability High silicon content All of the listed here Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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