Transformers A Buchholz relay can be installed on Oil cooled transformer Air-cooled transformer Auto transformer Welding transformer Oil cooled transformer Air-cooled transformer Auto transformer Welding transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 1000 kVA 500 kVA 3000 kVA 250 kVA 1000 kVA 500 kVA 3000 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Auto transformer Power transformer Potential transformer Current transformer Auto transformer Power transformer Potential transformer Current transformer 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 has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 78 Ω 7.8 Ω 1.3 Ω 13 Ω 78 Ω 7.8 Ω 1.3 Ω 13 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Leakage reactance Eddy current loss Copper loss Iron losses Leakage reactance Eddy current loss Copper loss Iron losses ANSWER DOWNLOAD EXAMIANS APP
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