My power supply tripped the RCD

Discussion in 'General Electronics Chat' started by tom66, Apr 18, 2011.

  1. tom66

    Thread Starter Senior Member

    May 9, 2009
    I was using my power supply to power an electronics project. The power supply is a TM035-3/GM035-3 0-3A 0-35V CC/CV power supply. When I turned the supply off, then on again, it made a little pop sound from inside and the RCD for the sockets tripped. (Lights remained.) It also blew the 5A mains input fuse. Obviously both safety features helped protect against a bad failure. After untripping the RCD and replacing the fuse, all is well - it still works perfectly fine. I am now a little concerned about how the power supply blew both the fuse and tripped the RCD! I have turned the supply on and off many times before. I am thinking inrush current but why only this time?
  2. Wendy


    Mar 24, 2008
    RCD? You need to defined anagrams at least once in a thread.
  3. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    It's the inrush or surge....this happens to me all the time.

    I simply swear & turn on the Breaker

    RCD...Residual current Device thingy

    We have ELCB...Earth Leakage Circuit Breaker thingy
  4. DumboFixer

    Active Member

    Feb 10, 2009
    RCD = Residual Current Device (used to be called Earth Leakage Circuit Breaker)

    In the United States and Canada, a residual current device is also known as a ground fault circuit interrupter (GFCI), ground fault interrupter (GFI) or an appliance leakage current interrupter (ALCI)
  5. Wendy


    Mar 24, 2008
    Oh! That. It does sound like capacitor surge to me.