Question 371Electricity & Electronics - Assistant Engineer

The correct answer is B) 669 amps. The reasoning is as follows: The question states that the emergency generator has a power factor of 0.9. With a power factor of 0.9 and the given rated output of 600 kW, the maximum output amperage can be calculated as 600 kW / (0.9 x 480 V) = 669 amps. This is the correct formula to determine the maximum output amperage given the power factor. The other answer choices are incorrect because they do not properly account for the 0.9 power factor in the calculation.