When two D.C. series generators are running in parallel, an equalizer bar is used Options: A . &nbspTo increase the speed and hence generated e.m.f. B . &nbspTo increase the series flux C . &nbspSo that two similar machines will pass approximately equal currents to the load D . &nbspTo reduce the combined effect of armature reaction of both machines

When two D.C. series generators are running in parallel, an equalizer bar is use

Question

When two D.C. series generators are running in parallel, an equalizer bar is used

Options:

A . To increase the speed and hence generated e.m.f.

B . To increase the series flux

C . So that two similar machines will pass approximately equal currents to the load

D . To reduce the combined effect of armature reaction of both machines

Answer: Option C

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Question 1. When two D.C. generators are running in parallel an equalizer bar is used....

Question 2. In a D.C. generator the ripples in the direct e.m.f. generated are reduced by....

Question 3. The armature core of a D.C. generator is usually made of....

Question 4. Magnetic field in a D.C. generator is produced by....

Question 5. Laminations of core are generally made of....

Question 6. In D.C. generators on no-load, the air gap flux distribution in space is....

Question 7. A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave....

Question 8. Which of the following could be lamina proximately the thickness of laminations of a D.C. machine?....

Question 9. The essential condition for parallel operation of two D.C. generators is that they have....

Question 10. The rapid wear of brushes takes place due to....

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