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3 Phase Short Circuit

  1. Aug 17, 2012 #1
    1. The problem statement, all variables and given/known data

    A 3-phase, 10KV, busbar of a power station is divided into three sections joined by
    two reactors as shown in Figure 1. Each section contains a synchronous generator
    and supplies a transmission line through a transformer. The parameters of generators, reactors and transformers are given in Figure 1. Calculate the maximum initial
    fault line current which can flow into the fault, if a 3-phase short-circuit occurs in:
    (a). the point A;
    (b). the point B;
    (c). the point C.

    HnGSn.jpg

    2. Relevant equations

    Not been given any equations :/

    3. The attempt at a solution

    I have not been able to attempt a solution which looks remotely correct. I've done this sort of question on short circuiting before when there has not been a busbar in the diagram and also without the reactors on the busbar. I've been working on it for a while now and the deadline is tonight and i'm starting to panic so I thought i'd see if anyone on here is nice enough to give me a starting hand so I know which direction I need to be heading in with this question :(
     
  2. jcsd
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