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Old 07-18-2002, 10:46 PM
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Mark Wilson Mark Wilson is offline
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you don't have to buy a more expensive scr. for my example, you need an scr that can switch 240VAC and pass 60 amps. that is the exact same scr that you would use in the primary of the transformer and the same one that you would put in series with all of the heaters.

you could put a current transformer around the current path to sense if you have heater continuity. this would also allow you to know the resistance of your elements while they are hot. it would work the same as a clip on ampmeter, except it would be permament and part of your safety system. if an element went out, all elements would go out since they are in series. but the current sensor would know that you have a fault, and you could use the signal to interface with an autodialer to call your cell phone to let you know that you had a problem.

Last edited by Mark Wilson; 07-18-2002 at 10:57 PM.
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