Gradual a/c power up

Discussion in 'The Projects Forum' started by metaldav2005, Dec 9, 2009.

  1. metaldav2005

    Thread Starter Member

    Nov 21, 2009
    11
    0
    I have another question. How would I steadily increase wall current smoothly from 0vac to 110 vac in say 5-10 secs?
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Wall current?

    Do you mean the mains voltage?

    Why you need to do that?
     
  3. metaldav2005

    Thread Starter Member

    Nov 21, 2009
    11
    0
    Sorry, yes wall current- I have some water pumps for a aquarium and when they power up, the sudden power surge causes them to rattle. Basically I guess I'm looking of some sort of soft-start for these devices.
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Ask at the shop where you bought them or an electrician to advice you. There are devices called soft starters for motors but you have to find the right one according to your motor (pump).
     
  5. metaldav2005

    Thread Starter Member

    Nov 21, 2009
    11
    0
    Thanks. I'll do that.
     
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