Hi Roger, that is exactly how I use it and it works wonderfully well! I am
using a $20 adjustable Dayton timer set for 10 seconds. No runs, no hits,
no errors!
73,
Gerald K5GW
In a message dated 3/4/2010 8:17:10 P.M. Central Standard Time,
sub1@rogerhalstead.com writes:
TexasRF@aol.com wrote:
>
> Hi Gary, I have tried using solid state relays in that application with
> poor reliability. The last attempt was a 70A unit that worked ok for a
while
> but a flashover in the plate circuit took it out in a shorted
condition. The
> B+ lead had a 50 ohm current limiting resistor installed but that was
not
> enough. 30A fuses in the primary also blew.
>
If need be you can always use a solid state timer to control a
mechanical relay(s).
73
Roger (K8RI)
>
> I have since replaced the solid state relay with a 30A mechanical relay
and
> no further problems have come up.
>
> 73,
> Gerald K5GW
>
>
>
> In a message dated 3/4/2010 2:53:40 P.M. Central Standard Time,
> garyschafer@comcast.net writes:
>
> 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
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|