Transformers In a power or distribution transformer about 10 per cent end turns are heavily insulated to absorb the line surge voltage and save the winding of transformer from damage to reflect the line surge and save the winding of a transformer from damage to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns None of these to absorb the line surge voltage and save the winding of transformer from damage to reflect the line surge and save the winding of a transformer from damage to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Saving in winding material Copper losses are negligible Eddy losses are totally eliminated Hysteresis losses are reduced Saving in winding material Copper losses are negligible Eddy losses are totally eliminated Hysteresis losses are reduced ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Total losses Copper losses Iron losses Friction losses Total losses Copper losses Iron losses Friction losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find None of the listed here Iron loss at no load Cu loss at any desire load Cu loss at no load None of the listed here Iron loss at no load Cu loss at any desire load Cu loss at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses electric coupling Uses capacitive coupling Uses inductive coupling A static device Uses electric coupling Uses capacitive coupling Uses inductive coupling A static device ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Reduce core loss Increase the wight None of the listed here Provide tight magnetic coupling Reduce core loss Increase the wight None of the listed here Provide tight magnetic coupling ANSWER DOWNLOAD EXAMIANS APP
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