[Boatanchors] Relay contact arcing

Rodger wq9e at dtnspeed.net
Mon Oct 22 09:26:53 EDT 2007


Hi Gene,

I generally use a capacitor with a resistor in series across the 
contacts for arc suppression.  I believe most of the older handbooks 
have info on choosing the correct resistor/capacitor value and the 
following web site might prove helpful:  
http://www.leachintl2.com/english/english2/vol6/properties/00053.html   
Just scroll down the page a ways for a discussion of arc suppression.

73, Rodger WQ9E

WØQFC wrote:
>    The relay in my Seneca has a lot of arcing at the contacts and I wonder 
> what is the best (easiest) way to suppress the arcing?
>
> This relay switches the CT of the HV tranny to ground when you switch to 
> transmit.
>
> I have heard that you can use diodes like a IN4001, but exactly how do you 
> wire the diodes?
>
> TIA
>
> 73
>
> Gene, WØQFC
>
> www.w0qfc.com
>
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