Re: Delay on a mains-powered relay?
From: Paul Hovnanian P.E. (Paul_at_Hovnanian.com)
Date: 01/06/05
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Date: Wed, 05 Jan 2005 20:43:26 -0800
DaveC wrote:
>
> I've got several remote alarm sensors triggered by 120vac relays. When power
> fails, the alarm calls the right folks.
>
> Problem is that even the small power glitches get these guys out of bed. Not
> a good thing.
>
> How can I delay the de-energizing of these relays? 5 minutes without power is
> OK. Will a series diode and shunt cap do the trick? If so, what size cap? If
> not, what're my options?
>
> The relay is similar to this one:
>
> http://tinyurl.com/6pppw
>
> Thanks,
> --
> Please, no "Go Google this" replies. I wouldn't
> ask a question here if I hadn't done that already.
Look for a TDDO (Time Delay Drop Out) relay.
-- Paul Hovnanian mailto:Paul@Hovnanian.com ------------------------------------------------------------------ Reject nihilism!
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