Which of the following is reversible in action? Mark as favorite Copy Link Motor generator set Motor converter Rotary converter Any of the above Check Answer
It is the ….. of the transformer on which the magnitude of angle of overlap depends? Mark as favorite Copy Link resistance capacitance leakage reactance any of the above Check Answer
A rotary converter operates at a? Mark as favorite Copy Link low power factor high power factor zero power factor none of the above Check Answer
If cathode and anode connections in a mercury arc rectifier are inter changed? Mark as favorite Copy Link the rectifier will not operate internal losses will be reduced both ion and electron streams will move in the same direction the rectifier will operate at reduced efficiency Check Answer
In a rotary converter I2R losses as compared to a D.C. generator of the same size will be? Mark as favorite Copy Link same double less three times Check Answer
To produce cathode spot in a mercury arc rectifier? Mark as favorite Copy Link anode is heated tube is evacuated an auxiliary electrode is used low mercury vapour pressures are used Check Answer
In a three-phase mercury arc rectifiers each anode conducts for? Mark as favorite Copy Link one-third of a cycle one-fourth of a cycle one-half a cycle two-third of a cycle Check Answer
The internal efficiency of a mercury arc rectifier depends on? Mark as favorite Copy Link voltage only current only voltage and current r.m.s. value of current Check Answer
Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of? Mark as favorite Copy Link 100 A at 100 V 200 A at 200 V 300 A at 300 V 500 A at 500 V Check Answer
A rotary converter in general construction and design, is more or less like? Mark as favorite Copy Link a transformer an induction motor an alternator any dc machine Check Answer