Question
Download Solution PDFConsider two alternators running in parallel. Now if the excitation of the one of the alternators is changed, then:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- In the case of alternators, a field rheostat may be used to change the excitation or its field current.
- If alternators are running in parallel, a change in the field current will not change the active power shared significantly but will change the operating power factor.
- With the change in the excitation, the armature current will change which will change the active power by a small amount.
- If the excitation decreased, its power factor becomes more lagging.
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