Re: Resistance of Oven Element

• To: tesla-at-pupman-dot-com
• Subject: Re: Resistance of Oven Element
• From: Ian Hopley <i_hopley-at-wintermute.co.uk>
• Date: Thu, 16 May 1996 18:57:00 +0100

(snip)
>From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
>                           One can indeed blow fuses by connecting an 
>inductor (e.g. variac) to the mains alone. 

I've had the very same problems, our ring main is protected by a 32 amp
breaker and occasionally mannaged to trip it. In the design of my new power
cabinet i'm including a small timer circuit to operate two relays in series.
The first connects the mains via a 100 ohm resistor and then the second
relay pulls in  250 mS later to apply the full voltage to the variac. I hope
this works as my wife is getting tired of being plunged into darkness
whenever i switch on the variac.
*******************************************
Ian Hopley ---->  i_hopley-at-wintermute.co.uk
Aberdeen
Scotland
*******************************************

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