The only positive disconnect is to unplug the AC..
But I have used the cross-over relays in several amps with no problems, but
I have always used RFI input filters and bypass caps on the relays, along
with surge protectors. Works for me, and I think QRO and Commander uses
them also.
Thanks and 73's,
Dudley
WA5QPZ
jhurry@austin.rr.com
----- Original Message -----
From: "R.Measures" <r@somis.org>
To: "Glenn McNeil" <vk4tzl@bigpond.net.au>; <amps@contesting.com>
Sent: Friday, March 26, 2004 10:06 AM
Subject: Re: [Amps] Solid State Relays
>
>
> >
> >Hi Gang..
> >
> >Anyone had any experience using the Opto22 series of SSR's in Power
Supply
> >construction ?
> >I've got two Opto22 Model 240D10-17 Devices and was thinking about using
> >one to control mains supply to a 3kv Power Supply. They supposedly use
> >zero crossover switching but I was wondering about their behaviour during
> >fault conditions. I will be using G3SEK Boards to control things, and
> >ideally drop off the control voltage on the Opto22 during a fault,
thereby
> >removing the mains supply
> >
> >Is this a better way then using a beefy relay...
>
> ** Probably not, Glenn. Relay contacts typically have less V-drop than
> a Si junction. Also, relays are more likely to function in RF
> environments. Sometimes, high-tech is not without problems. An example
> is anti-lock brakes. On a test-track, ABS is clearly the best, however,
> autos equipped with ABS have a higher accident rate than those autos
> without ABS.
>
> cheers
>
> >and are these things
> >reliable ?
> >
> >Anyone got any experience/exposure to these things ?
> >
> >73
> >
> >Glenn
> >VK4TZL
> >_______________________________________________
> >Amps mailing list
> >Amps@contesting.com
> >http://lists.contesting.com/mailman/listinfo/amps
> >
> _______________________________________________
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