Directions: It consists of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answer using the codes given below:

Statement (I): Dampers are used in the alternators.
Statement (II): The voltage fluctuations are not reduced by the damper windings in an alternator.

Question

Question

This question was previously asked in

ESE Electrical 2015 Paper 2: Official Paper

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Statement (I) and Statement (II) are individually true and statement (II) is the correct explanation of statement (II)
Statement (I) and Statement (II) are individually true but statement (II) is not the correct explanation of statement (I)
Statement (I) is true but statement (II) is false
Statement (I) is false but statement (II) is true

Answer 1

In large alternators, damper windings are used to

Therefore, Statement (I) is true but statement (II) is false

Important Points:

The damper winding in synchronous motor performs two functions:

Under normal running conditions, damper winding does not carry any current.