Transformers In a transformer routine efficiency depends upon Both power factor and load current Supply frequency Load current Power factor of load Both power factor and load current Supply frequency Load current Power factor of load ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because iron loss is increased considerably copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input iron loss is increased considerably copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a part of transformer installation? Exciter Buchholz relay Breather Conservator Exciter Buchholz relay Breather Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 100 per cent 25 per cent 50 per cent 98 per cent 100 per cent 25 per cent 50 per cent 98 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its dielectric strength of oil temperature rise copper loss voltage ratio dielectric strength of oil temperature rise copper loss voltage ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Water cooled Oil cooled Air cooled None of the listed here Water cooled Oil cooled Air cooled None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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