Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 90 to 95% 85 to 90% 65 to 75% 80 to 85% 90 to 95% 85 to 90% 65 to 75% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Voltage drop in transformer reactance All of the listed here Arc voltage drop Voltage drop in resistance of transformer and smoothing chokes Voltage drop in transformer reactance All of the listed here Arc voltage drop Voltage drop in resistance of transformer and smoothing chokes ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started from A.C. side as induction motor from D.C. side as D.C. motor by means of a small auxiliary motor All of the listed here from A.C. side as induction motor from D.C. side as D.C. motor by means of a small auxiliary motor All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter operates at a zero power factor low power factor None of the listed here high power factor zero power factor low power factor None of the listed here high power factor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a single phase rotary converter the number of slip rings will be Four Three Two Six Four Three Two Six ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 55°C 30°C 45°C 75°C 55°C 30°C 45°C 75°C ANSWER DOWNLOAD EXAMIANS APP
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