Hipot switcher

Discussion in 'General Electronics Chat' started by ak2011, Jan 5, 2012.

  1. ak2011

    Thread Starter New Member

    Oct 24, 2011
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    I'm looking for ways to electronically switch power going to a device between MAINS (120VAC) and Hipot (HV) ~4kVAC and vice-versa.

    My initial thought was using power FETs, but I doubt there is any rated for such high voltages. The idea is to switch to high voltage when doing Hipot tests, then back to normal "MAINS" during regular testing
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,770
    970
    What is your actual hipot voltage.. I doubt its 4kV.. I thought it was typically 2 times operating voltage + 1000V for AC. (so 2x120=240+1000=1240V)
    That might help others narrow down your choices/solutions..
    I know TE has many relays (kilovac series) that is capable of switching up to 70kV
    http://relays.te.com/kilovac/
     
  3. ak2011

    Thread Starter New Member

    Oct 24, 2011
    12
    0
    Sweeeet! Thanks for the link.

    Actual hipot voltage is currently 4kVAC, but might go up to 5kVAC. Not sure how the number was derived, but that's the requirement I have. The high voltage would only be applied for about a minute. So the relay/switch will mainly be passing MAINS power.
     
  4. ak2011

    Thread Starter New Member

    Oct 24, 2011
    12
    0
    I've attached a pic of what I'm really trying to achieve. The desire is to have S1, S2, S3, S4, and S5 be required to be in the same position at all times, this position will be opposite to that of S6 and S7. The relays would be controlled by 12V or less
     
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