Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Copper loss Iron losses Leakage reactance Eddy current loss Copper loss Iron losses Leakage reactance Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Transformers In a power or distribution transformer about 10 per cent end turns are heavily insulated to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns None of these to reflect the line surge and save the winding of a transformer from damage to absorb the line surge voltage and save the winding of transformer from damage to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns None of these to reflect the line surge and save the winding of a transformer from damage to absorb the line surge voltage and save the winding of transformer from damage ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Current transformer Auto transformer Power transformer Potential transformer Current transformer Auto transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine magnetising current and loss core loss efficiency magnetising current copper loss magnetising current and loss core loss efficiency magnetising current copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine all-day efficiency None of these stray losses temperature all-day efficiency None of these stray losses temperature ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following protection is normally not provided on small distribution transformers? All of these Overfluxing protection Overcurrent protection Buchholz relay All of these Overfluxing protection Overcurrent protection Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
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