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 Which of the following protection is normally not provided on small distribution transformers? All of these Buchholz relay Overfluxing protection Overcurrent protection All of these Buchholz relay Overfluxing protection Overcurrent protection ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine all-day efficiency stray losses temperature None of these all-day efficiency stray losses temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ None of the listed here Both primary and secondary windings Primary winding only Secondary winding only None of the listed here Both primary and secondary windings Primary winding only Secondary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 50% load 25% load Zero load 90% load 50% load 25% load Zero load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA ANSWER DOWNLOAD EXAMIANS APP
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