[Amps] Solid state relays and step start

[TexasRF at aol.com]

Jim, you might check W.W. Grainger for that. If they are still available  
they will be in their catalog and web site.
 
73,
Gerald K5GW
 
In a message dated 3/4/2010 3:05:56 P.M. Central Standard Time,  
n7fcf at hctc.com writes:

Question. Are the plugin thermal delay relays still manufactured.  We used 
them a lot twenty five years ago in manufacturing and large scale  
refrigeration control. They plugged into an octal socket and had beefy  
contacts. They were relativly inexpensive at the   time.
Jim
----- Original Message ----- 
From: "Gary Schafer"  <garyschafer at comcast.net>
To: <Amps at contesting.com>
Sent:  Thursday, March 04, 2010 12:53 PM
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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> Amps at contesting.com
>  http://lists.contesting.com/mailman/listinfo/amps


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