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