Electrical Machines If Ke is eddy current constant, Kf is form factor, f is supply frequency, Bm maximum flux density in core of transformer, the expression of eddy current loss in transformer, is given by KefKf2Bm2. Kef2Kf2Bm2. Kef2KfBm2. Kef2Kf2Bm. KefKf2Bm2. Kef2Kf2Bm2. Kef2KfBm2. Kef2Kf2Bm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in transformer insulating oil. winding conductors and steel structures of transformer. paper insulation in transformers. steel core. transformer insulating oil. winding conductors and steel structures of transformer. paper insulation in transformers. steel core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If iron loss and full load copper loss of any transformer are denoted by Pi and Pc, then the load corresponding to maximum efficiency is given by (Pi / Pc)2 × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc) × full Load. (Pi / Pc)1.6 × full Load. (Pi / Pc)2 × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc) × full Load. (Pi / Pc)1.6 × full Load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called compensating winding. common winding. damping winding. tertiary winding. compensating winding. common winding. damping winding. tertiary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to zero. infinity. two. unity. zero. infinity. two. unity. ANSWER DOWNLOAD EXAMIANS APP
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