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Transformer power rating?

  1. Jun 25, 2015 #1
    1. The problem statement, all variables and given/known data
    "A 5 kVa, 240:120 V transformer.."

    I am just wondering what the 5kVa refers to

    2. Relevant equations

    3. The attempt at a solution
    is it ##5 kVA = \sqrt{P_{total}^2+Q_{total}^2}## or is it ##5 kVA = I_1V_1 =I_2V_2##
  2. jcsd
  3. Jun 25, 2015 #2
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