Question 534Electricity/Electronics - Assistant Engineer70% to pass
If a 12-pole three-phase synchronous alternator is operating at 590 rpm, what will be its output frequency?
AI Explanation
The correct answer is B) 59 Hz.
To calculate the output frequency of a synchronous alternator, you can use the formula: Frequency (Hz) = (Number of Poles x RPM) / 120.
In this case, the alternator has 12 poles and is operating at 590 rpm. Plugging these values into the formula, we get:
Frequency = (12 x 590) / 120 = 59 Hz.
The other options are incorrect because:
A) 58 Hz is too low,
C) 60 Hz is too high,
D) 61 Hz is too high.
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