railway DFCCIL Executive 2025 Mock Test Electrical Machines Alternator and Synchronous Motors

An alternator has rated field current of 3 A. It is developing 180 V at a field current of 1.5 A at rated speed. If its field current is made 3 A rated speed, then the generated voltage would be

1

360 V

2

180 V

3

less than 360 V

4

270 V

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