Transformers For the parallel operation of single phase transformers it is necessary that they should have same polarity same efficiency same number of turns on the secondary side. same kVA rating same polarity same efficiency same number of turns on the secondary side. same kVA rating ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases load on it increases None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Eddy current loss Hysteresis loss Copper loss Leakage reactance Eddy current loss Hysteresis loss Copper loss Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The permissible flux density in case of cold rolled grain oriented steel is around 3.7 Wb/m² 1.7 Wb/m² 4.7 Wb/m² 2.7 Wb/m² 3.7 Wb/m² 1.7 Wb/m² 4.7 Wb/m² 2.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has Low hysteresis loss All of the listed here High permeability High silicon content Low hysteresis loss All of the listed here High permeability High silicon content ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current cool as there is no secondary current none of above will happen hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current cool as there is no secondary current none of above will happen ANSWER DOWNLOAD EXAMIANS APP
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