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? 16 kVA 8 kVA 4 kVA 0.25 kVA 16 kVA 8 kVA 4 kVA 0.25 kVA ANSWER DOWNLOAD EXAMIANS APP
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 Natural oil cooling is used for transformers up to a rating of 500 kVA 3000 kVA 250 kVA 1000 kVA 500 kVA 3000 kVA 250 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 65% 85% 75% 95 % 65% 85% 75% 95 % ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is decreased Remians unchanged Is increased None of the listed here Is decreased Remians unchanged Is increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be Ns (l-s)Ns (Ns-l)s s.N. Ns (l-s)Ns (Ns-l)s s.N. ANSWER DOWNLOAD EXAMIANS APP
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