Minimal power to energize the transformed one

Discussion in 'Homework Help' started by JRVV, Sep 26, 2006.

  1. JRVV

    Thread Starter New Member

    Sep 26, 2006
    3
    0
    I need to energize only a transformer of 20 MVA in the side of 13.8 kV (connection Y, grounding), across a system of provisional generation. My question is, all the power of generation do I need?, especially to free the inrush
     
  2. mrmeval

    Distinguished Member

    Jun 30, 2006
    833
    2
    Schematic that's in a graphic format? Not wherd.
     
  3. JRVV

    Thread Starter New Member

    Sep 26, 2006
    3
    0
    Thank you for your attention. It is a substation of power installed in Mexico

     
  4. subtech

    Senior Member

    Nov 21, 2006
    123
    4
    Hello JRVV
    Energising that transformer from a single generator may not be possible.
    There are many factors involved. The inrush to the transformer could be anywhere from 8 to 30 times the fla of that unit. Duration of the inrush depends on the L/R ratio of the transformer itself and the cable/conductors that tie the gen to the transformer.
    You might try posting your question here:http://www.eng-tips.com/index.cfm
    but be prepared to provide alot of details such as protection for the generator and transformer.
     
  5. JRVV

    Thread Starter New Member

    Sep 26, 2006
    3
    0
    Thank you for your attention. But it seems to me that adding the curves of contribution there are faults of the generators give me a good index of all the generators I need.

    Regards
     
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