i need Automatic change over circuit of star/Delta starter for both 3Ph and 2 Ph

Discussion in 'General Electronics Chat' started by kandans, May 3, 2016.

  1. kandans

    Thread Starter New Member

    May 3, 2016
    1
    0
    In our land we are using 15HP submersible pump, we use capacitor for run the pump in 2Phase.

    every time when power changeover from two Phase to three phase we need to add and remove the capacitors and start the pump.

    so i want automatic changeover of 3Ph to 2Ph circuit, please help
     
  2. tcmtech

    Well-Known Member

    Nov 4, 2013
    2,039
    1,667
    Where do you have 2 phase available? o_O

    Do you mean split single phase like is standard in the North American power systems?
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,554
    2,375
    Where does the star/delta starting come in?
    Max.
     
  4. Picbuster

    Member

    Dec 2, 2013
    376
    50
    Please make a few drawings
    a:in star 3Ph
    b:in star 2ph
    c & d for Delta
    This to allow us what you want.
     
  5. Ramussons

    Active Member

    May 3, 2013
    557
    92
    I guess the OP's problem is that he has a 15 HP 3 Phase motor; and when 1 phase fails, to "generate" the missing phase by setup of capacitors.
    He wants to automate the process.

    As Picbuster said, let's have the schematic for the 2 phase and 3 phase operations.
     
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