Re: [CAD_CAM_EDM_DRO] Transformer Soft Start

On Thursday 03 July 2003 13:56, wanliker@... wrote:

> In a message dated 7/3/2003 11:29:22 AM Mountain Daylight Time,
>
> tiffyted@... writes:
> > The transformer is 230v only primary and 2 x 40v 12.5A secondary
>
> You can always open all leads, then apply about 6 VAC to one of the
> secondaries to check out the transformer, and to help phase the primaries,
> and the other secondary, if they are not marked.
> bill
>
>snip<

Then leave the secondaries unconnected and connect just the primary to the AC
supply and see if you still have a large inrush current. Next connect the
secondaries and try. Then add the rectifier(s). Lastly add the filter cap.
Take it one step a time.
--
Keith Bowers - Thomasville, NC