A 1-phase transformer supplying 332 amps to a 240-volt load delivers how many KVA 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 kVA delivered to the load by a 1-phase transformer, the formula to use is:

[ \text{kVA} = \frac{V \times I}{1000} ]

where V is the voltage in volts and I is the current in amps. In this case, the transformer supplies a current of 332 amps at a voltage of 240 volts.

Now, using the formula:

  1. Multiply the voltage (240 volts) by the current (332 amps):

[

240 , \text{volts} \times 332 , \text{amps} = 79,680 , \text{watts}

]

  1. Convert watts to kVA by dividing by 1000:

[

\frac{79,680 , \text{watts}}{1000} = 79.680 , \text{kVA}

]

Thus, the kVA delivered to the load is 79.680, which corresponds to one of the choices provided. This calculation shows how kVA is derived from voltage and current, emphasizing the significance of both parameters in power delivery.

Understanding this concept is crucial, as it allows one to

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