Transformers The dielectric strength of transformer oil is expected to be 330 kV 33 kV 100 kV lkV 330 kV 33 kV 100 kV lkV ANSWER DOWNLOAD EXAMIANS APP
Transformers Material used for construction of transformer core is usually Silicon steel Copper Aluminium Wood Silicon steel Copper Aluminium Wood ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around no-load near full-load half-load 10% overload no-load near full-load half-load 10% overload ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Air blast cooling Natural air cooling Any of the listed here Oil cooling Air blast cooling Natural air cooling Any of the listed here Oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Copper loss Leakage reactance Eddy current loss Iron losses Copper loss Leakage reactance Eddy current loss Iron losses ANSWER DOWNLOAD EXAMIANS APP
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