star delta switching

Discussion in 'General Electronics Chat' started by karthikkv, Jan 22, 2012.

  1. karthikkv

    Thread Starter New Member

    Dec 28, 2011
    2
    0
    hi everyone.......
    i am doing a project on stAR DELTA SWITCHING AT 300HZ in an alternator 14.5V 90A alternator.....
    1) i want a switch that could operate at 120A can i use mosfet or igbt?
    2)how to measure frequency at 7(+-)0.5 V 0 to100A dc ?
    :( im confused please guid me :(
     
  2. karthikkv

    Thread Starter New Member

    Dec 28, 2011
    2
    0
    pls can anyone tel me:(
     
  3. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
    maybe you could give us a little more background information. An example would be why you would want to do this, along with some of the major constraints.
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Usually this is done by using contactors.

    Any particullar reason for using semiconductor switches?
     
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