Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 8 kVA 16 kVA 0.25 kVA 4 kVA 8 kVA 16 kVA 0.25 kVA 4 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current none of above will happen cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current none of above will happen ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around half-load 10% overload no-load near full-load half-load 10% overload no-load near full-load ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because iron loss is increased considerably secondary output is much less as compared to primary input voltage drop both in primary and secondary becomes large copper loss becomes high in proportion to the output iron loss is increased considerably secondary output is much less as compared to primary input voltage drop both in primary and secondary becomes large copper loss becomes high in proportion to the output ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Leakage reactance of the two winding None of the listed here Copper loss is equal to constant loss Resistance of the two winding are equal Leakage reactance of the two winding None of the listed here Copper loss is equal to constant loss Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find None of the listed here Cu loss at no load Iron loss at no load Cu loss at any desire load None of the listed here Cu loss at no load Iron loss at no load Cu loss at any desire load ANSWER DOWNLOAD EXAMIANS APP
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