Re: [CAD_CAM_EDM_DRO] Weird Temperature problem

condensation? i mean inside the box, switch, on the transformer?

the hair drier would not only heat, but remove moist effectively.

vajk

kimvellore wrote:

>Hi,
> I built a CNC controller with a torroidal transformer at the power
>supply end. Everything works fine (almost). The Problem I have is when
>the garage is cold (I have the setup in my garage) around 57F or less
>I keep blowing the AC fuse to the transformer. I normally run fine
>with a 3A fuse but when cold it blows a 6A fuse as soon as the power
>switch is flipped.
>
>To debug I disconnected the transformer from the diode caps etc.. so
>it was just open and still I kept blowing the fuse. Now I heat up the
>transformer with a hair dryer and after it is warm I turn it ON and it
>does not even blow up a 1A fuse. So on warmer days (>65F) when I was
>using the power supply it was working fine...
>
> My question is has anyone seen this kind of problem and do you have
>any recommendations for a solution.
>
>Thanks
>Kim
>
>
>
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