Reply to "Dead FasTrack switch"

CUPRIOGR Forum Member

I do not know how TVS diodes could be configured to suppress transients in an AC environment unless they are put after the 2-ohm resistor inside the FasTrack switches. Or are the suspected transients really greater than 20 volts? Has anyone measured really high voltage transients on an AC train layout? BUT I am suspicious the actual problem might be a simple derailing short that applies center rail power to the non-derailing control rail. Without a detailed circuit diagram of the printed circuit board, this hypothesis would be difficult to investigate. Has anyone verified the cause of the blowing of the 2-ohm resistors?

7/9/2211:14 AM

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