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Re: [Amps] Solid state relays and step start

To: "amps@contesting" <amps@contesting.com>
Subject: Re: [Amps] Solid state relays and step start
From: Mike Saculla <fqm@msn.com>
Date: Thu, 4 Mar 2010 21:40:23 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
When solid state relays fail, they fail in the shorted condition. One of their 
downfalls.

Mike K6MDS


From: garyschafer@comcast.net
To: Amps@contesting.com
Date: Thu, 4 Mar 2010 15:53:17 -0500
Subject: [Amps] Solid state relays and step start

Has anyone had problems using a solid state relay to short out the step
start resistor in a power supply?
 
I have heard of problems of not enough current thru the SS relays (when amp
is in standby) when used as the primary on/off relay. Sometimes a resistor
has to be placed in parallel with the transformer primary so the relay works
properly.
 
When used in a step start circuit the current could be quite low as well as
the voltage at the relay due to the resistor across the relay.  Any issues
here?
 
73
Gary  K4FMX                                       
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