Rectifiers and Converters A commutating rectifier consists of commutator driven by A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of 500 A at 500 V 100 A at 100 V 400 A at 400 V 300 A at 300 V 500 A at 500 V 100 A at 100 V 400 A at 400 V 300 A at 300 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier anode is heated low mercury vapour pressures are used an auxiliary electrode is used tube is evacuated anode is heated low mercury vapour pressures are used an auxiliary electrode is used tube is evacuated ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters If cathode and anode connections in a mercury arc rectifier are inter changed Internal losses will be reduced The rectifier will not operate The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction Internal losses will be reduced The rectifier will not operate The rectifier will operate at reduced efficiency Both ion and electron streams will move in the same direction ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started by means of a small auxiliary motor from D.C. side as D.C. motor All of the listed here from A.C. side as induction motor by means of a small auxiliary motor from D.C. side as D.C. motor All of the listed here from A.C. side as induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters On which of the following factors the number of phases for which a rectifier should be designed depends? The power factor of the system should be high In the output circuit there should be no harmonics All of the listed here The voltage regulation of the rectifier should be low The power factor of the system should be high In the output circuit there should be no harmonics All of the listed here The voltage regulation of the rectifier should be low ANSWER DOWNLOAD EXAMIANS APP
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