A 1Ø transformer rated at 37.5 KVA supplies power to a 22 KVA load at 240 volts. How many amps is the transformer supplying to the load?

Study for the Independent Electrical Contractors (IEC) Year 2 Part 3 Test. Use flashcards and multiple choice questions with hints and explanations to prepare confidently. Get exam-ready now!

To determine the number of amps the transformer is supplying to the load, first, you can use the formula for calculating amperage from a given load in kilovolt-amperes (kVA) at a specific voltage. The formula is:

[ \text{Amps} = \frac{\text{kVA} \times 1000}{\text{Volts}} ]

In this case, the load is 22 kVA and the voltage is 240 volts. Plugging these values into the formula gives:

[ \text{Amps} = \frac{22 \times 1000}{240} ]

Calculating the above:

[ \text{Amps} = \frac{22000}{240} ]

[ \text{Amps} \approx 91.67 ]

Rounding this value gives approximately 92 amps. Thus, the transformer is supplying about 92 amps to the load. This calculation confirms that the answer is appropriate and aligns with standard practices in calculating current from kVA and voltage. The option selected aligns closely with the rounded figure derived from the calculations, making it the correct answer to the problem.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy