Question 196Electricity/Electronics - Assistant Engineer70% to pass
For the purpose of calculating apparent power, which of the following procedures should be used to determine the total load current of a three-phase, delta wound, AC generator?
AI Explanation
The correct answer is C) Multiply the amperage in one phase by the square root of three.
In a three-phase, delta-wound AC generator, the total load current is equal to the phase current multiplied by the square root of three. This is because in a delta configuration, the phase current is equal to the line current, but the line current is √3 times the phase current. Therefore, to calculate the total load current, you need to multiply the amperage in one phase by the square root of three.
The other options are incorrect because they do not properly account for the delta configuration. Dividing the total amperage by three (option A) or the square root of three (option B) would not give the correct total load current. Multiplying the amperage in one phase by three (option D) would overestimate the total load current.
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