CAD CAM EDM DRO - Yahoo Group Archive

Re: Power Supply & Gecko's

Posted by smith67au
on 2005-08-13 15:14:33 UTC
>
> Where in the circuit is the fuse ?
>
> If you have two motors at 7 amps and one at 3.5 amps, you have 18
amps
> but you have a 5 amp fuse ?
>
> If the fuse is on the AC side, it is blowing from the inrush of the
> transformer, try this experiment, put a lightbulb and a switch in
> parallel with the fuse.
>
> when you turn on power, the light will light and then dim, at that
> point, the transformer and cap will have charged. turn off the
light
> and leave the fuse in the circuit.
>
> If it is just the inrush, you *should* be able to run normally.
>
> But, tell us where the fuse(s) are in the circuit.
>
> Dave

Thanks for the replies.

The 5A fuses are in the individual power wires to the Gecko's.
Also I should have mentioned that I read the AC voltage even with no
load on the 2 power supplies I have tried.
Should have also mentioned that I am in Oz, so mains voltage is 240VAC
50Hz(I'm reading 150VAC on the current Power supply when using the
48VAC output taps)

I do have some smaller caps around 9000uf and 10000uf if it would be
better dropping down in size.

Thanks again

Tim

Discussion Thread

smith67au 2005-08-13 05:48:19 UTC Power Supply & Gecko's caudlet 2005-08-13 08:30:33 UTC Re: Power Supply & Gecko's Peter Reilley 2005-08-13 08:43:53 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's Andy Wander 2005-08-13 08:45:50 UTC RE: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's Roy J. Tellason 2005-08-13 09:03:53 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's wanliker@a... 2005-08-13 09:20:52 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's turbulatordude 2005-08-13 09:24:39 UTC Re: Power Supply & Gecko's turbulatordude 2005-08-13 09:49:03 UTC Re: Power Supply & Gecko's Stephen Wille Padnos 2005-08-13 10:06:58 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's Roy J. Tellason 2005-08-13 10:31:05 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's smith67au 2005-08-13 15:14:33 UTC Re: Power Supply & Gecko's Jon Elson 2005-08-13 18:49:05 UTC Re: [CAD_CAM_EDM_DRO] Re: Power Supply & Gecko's smith67au 2005-08-14 05:29:35 UTC Re: Power Supply & Gecko's