Transformers In a power or distribution transformer about 10 per cent end turns are heavily insulated to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns 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 None of these to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 880 V 73 V 88 V 7.3 V 880 V 73 V 88 V 7.3 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is Any of these air blast cooling natural air cooling oil cooling Any of these air blast cooling natural air cooling oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find 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 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Frequency Time period Power Voltage Frequency Time period Power Voltage ANSWER DOWNLOAD EXAMIANS APP
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