Modelling Of 3 Winding Transformer

Discussion in 'General Electronics Chat' started by Hafiz Bilal Usman Qureshi, Oct 28, 2013.

  1. Hafiz Bilal Usman Qureshi

    Thread Starter New Member

    Oct 28, 2013
    1
    0
    Rated Voltage Network
    380 KV
    110 KV
    30KV

    Rated Voltage Transformer
    400 KV
    120 KV
    33 KV

    Rated Apparant Power
    300 MVA
    300 MVA
    75 MVA

    Impedence Voltage drop
    uk 12 18.92%
    uk 23 11.08%
    uk 31 5.81%

    no load current
    0.0398%

    SIDE 1 :
    zero Sequence Short Circuit impedance
    R0k 1.538 ohm
    X0k 101.3 ohm

    zero sequence noload impedance
    R00 8.8 ohm
    X00 221.6 ohm

    SIDE 2 :
    zero Sequence Short Circuit impedance
    R0k 0.2340 ohm
    X0k 4.463 ohm

    zero sequence noload impedance
    R00 0.73 ohm
    X00 9.87 ohm

    how can we calculate 3 windings tranformer Admittance ???

    Thank you very much for your cooperation .
     
    Last edited by a moderator: Oct 28, 2013
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