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What are load calculations for a transformer?

  1. Jul 27, 2009 #1
    what are load calculations for a transformer???

    A 44kv line is distributed into the industry using around 8 transformers 3750kva, 2500kva and 1500kva. What does this mean and what are the load calculations for this???? Also how is it distributed???
     
  2. jcsd
  3. Jul 27, 2009 #2

    negitron

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    Re: what are load calculations for a transformer???

    KVA is simply volts times amps. And, it's usually three-phase, so you divide the line-to-line voltage by the square root of 3 to find the line-neutral voltage. So, for example, if you have 44 kV into a 3750 kVA transformer, the maximum current will be 3750 / (44 / SQRT (3)) / 3 = 49.2 amps per phase primary current.
     
  4. Jul 27, 2009 #3
    Re: what are load calculations for a transformer???

    thank u.....
     
  5. Jul 30, 2009 #4
    Re: what are load calculations for a transformer???

    Distribution of load on individual transformers is related to their rated power and impedance voltage. For detail calculation you can refer to Transformer Riddle No. 27 from http://electrical-riddles.com
     
    Last edited: Jul 30, 2009
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