Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? Options: A . &nbspMotor-generator set B . &nbspMotor converter C . &nbspRotary converter D . &nbspMercury arc rectifier

Normally, which of the following is used, when a large-scale conversion from AC.

Question

Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required?

Options:

A . Motor-generator set

B . Motor converter

C . Rotary converter

D . Mercury arc rectifier

Answer: Option D

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Question 1. Which of the following is the loss within the mercury arc rectifier chamber?....

Question 2. The voltage drop at anode, in a mercury arc rectifier is due to....

Question 3. A rotary converter is a single machine with....

Question 4. The efficiency of an electrolytic rectifier is nearly....

Question 5. Which of the following mercury arc rectifier will deliver least undulating current?....

Question 6. In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on....cathode, then it the electrons on their may to anode.

Question 7. Which of the following methods may be used to convert A.C. system to D.C.?....

Question 8. In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of....

Question 9. On which of the following factors the number of phases for which a rectifier should be designed depends?....

Question 10. With a motor converter it is possible to obtain D.C. voltage only upto....

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