When two D.C. generators are running in parallel an equilizer bar is used______________?
Correct answer: D. so that the two identical machines will pass approximately equal cur¬rents to the load
- A. to increase the series flux
- B. to increase the generated e.m.f.
- C. to reduce the combined effect of ar-mature reaction of both the machines
- D. so that the two identical machines will pass approximately equal cur¬rents to the load
Explanation
The equalizer bar connects the armature circuits so that the series-field effects remain balanced, allowing identical generators to share the load current nearly equally. It does not increase generated emf or reduce armature reaction directly.
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