industrial transformer selection

Discussion in 'The Projects Forum' started by tahir mehmood, Aug 22, 2014.

  1. tahir mehmood

    Thread Starter New Member

    Jun 28, 2013
    16
    0
    Dear Professionals;

    can you people help in selection of a transformer whose technical details are as under:
    Primary Voltage : 230v/3-phase/60 hz
    Secondary voltage : 380 V/3-Phase/60 Hz.

    Total load = 400 Amperes.

    i Just need the transformer selection.
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,754
    760
    U are better off winding one.
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,571
    2,381
    If that is the secondary load, the primary will be double that.
    Max.
     
  4. Ramussons

    Active Member

    May 3, 2013
    557
    92
    I think you better give a schematic of what you want. The definition of 230V 3 Phase is not clear. If each Phase to Neutral is 230 Volts, it would mean 440V phase to phase.

    What is the Transformer to be used for?
     
  5. gerty

    AAC Fanatic!

    Aug 30, 2007
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    williamj likes this.
  6. tahir mehmood

    Thread Starter New Member

    Jun 28, 2013
    16
    0
    Dear Ramussons the transformer primary voltages are 230v line to line and 110v line to phase.
    the total load is 400 Amperes and we are going to install this transformer for our newly installed factory i.e. for industrial use,which may include inductive load of motors,lighting,and many more.
     
  7. Johann

    Senior Member

    Nov 27, 2006
    190
    30
    230V line voltage and 110V phase voltage? If the primary is Star(Wye)-connected, I get 132.8V.

    The total load you are referring to, is that your secondary line current? (263.27kVA)

    Looks like you'll have to settle for something between 300kVA and 500kVA
     
    Last edited: Aug 23, 2014
  8. Ramussons

    Active Member

    May 3, 2013
    557
    92
    If the Phase to Phase is 220 and Phase to Neutral is 110, it's not 3 Phase. it is 2 phase in opposition.
     
  9. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
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