Transformers Harmonics in transformer result in magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 25 0.2 5 0.4 25 0.2 5 0.4 ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 3-5% 30-40% 15-30% Above 40% 3-5% 30-40% 15-30% Above 40% ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Water cooled Oil cooled Air cooled None of the listed here Water cooled Oil cooled Air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. Magnetically Electrically Electrically and magnetically None of the listed here Magnetically Electrically Electrically and magnetically None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Current transformer Potential transformer Power transformer Auto transformer Current transformer Potential transformer Power transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
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