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- Subject
- D.C. Generatorselectrical-engineering-mcqs › d-c-generators
- Published
- 5 Jul 2018
- Last updated
- 28 May 2026
Explanation
An equalizer bar is used when two identical DC generators run in parallel to balance the load current between them, ensuring each machine carries nearly the same current. This prevents overloading of one generator and promotes stable operation.
More D.C. Generators MCQs
Practice related questions from the same subject.
- 1.What fundamental principle does a direct current (D.C.) generator operate on?
- 2.Under what condition can a series generator initiate self-excitation?
- 3.If the open circuit voltage of a compound generator is 250 V, what can be said about its terminal voltage when operating at full load?
- 4.A series generator has a terminal voltage of 150 V at a load current of 5 A. What will the terminal voltage be if the load current rises to 10 A?
- 5.Under what condition can a shunt generator initiate self-excitation?
- 6.For a DC generator, which value of voltage regulation is considered ideal?
- 7.Two DC shunt generators, each having an armature resistance of 0.02 ohms and a field resistance of 50 ohms, operate in parallel to deliver a combined load current of 1000 A. If their electromotive forces (e.m.f.) are 270 V and 265 V respectively, what will be the voltage at the bus bars?
- 8.What is the key requirement for two DC generators to operate in parallel successfully?
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