[Amps] Solid State Relays

[R.Measures]

>
>Hi Gang..
>
>Anyone had any experience using the Opto22 series of SSR's in Power Supply 
>construction ?
>I've got two Opto22 Model 240D10-17 Devices and was thinking about using 
>one to control mains supply to a 3kv Power Supply. They supposedly use 
>zero crossover switching but I was wondering about their behaviour during 
>fault conditions. I will be using G3SEK Boards to control things, and 
>ideally drop off the control voltage on the Opto22 during a fault, thereby 
>removing the mains supply
>
>Is this a better way then using a beefy relay...

**  Probably not, Glenn.  Relay contacts typically have less V-drop than 
a Si junction.  Also, relays are more likely to function in RF 
environments.  Sometimes, high-tech is not without problems.  An example 
is anti-lock brakes.  On a test-track, ABS is clearly the best, however, 
autos equipped with ABS have a higher accident rate than those autos 
without ABS.  

cheers

>and are these things 
>reliable ?
>
>Anyone got any experience/exposure to these things ?
>
>73
>
>Glenn
>VK4TZL
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