Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Auto transformer Power transformer Current transformer Potential transformer Auto transformer Power transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary terminal voltage to primary applied voltage secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Oil cooled Air cooled Water cooled None of the listed here Oil cooled Air cooled Water cooled None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on AC as well as DC Dc only None of the listed here Ac only AC as well as DC Dc only None of the listed here Ac only ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? Overfluxing protection All of these Overcurrent protection Buchholz relay Overfluxing protection All of these Overcurrent protection Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Eddy current Friction Hysteresis Copper Eddy current Friction Hysteresis Copper ANSWER DOWNLOAD EXAMIANS APP
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