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  • Users: sparxicus
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  1. sparxicus

    Help Req with SSR Leakage

    I have set up a test rig to test out Temperature controllers. An SSR is activated to switch on a 240V LED when the T/C is calling for Heat. Trouble is that even when the SSR is not switched on there is a leakage current across it that lights the LED anyway. I spoke to the SSR manufacturer...
  2. sparxicus

    DC Motor Arcing to Earth & "blowing" Drive Thyristors

    Please bear with me as I am a first time "poster"!. I have a 49kw ABB Dc Motor which seems to be arcing from the bottom brushes to the motor case. This is causing two of the 3 phase fuses feeding the ABB drive to blow (in one case it actually took out the main 200A Breaker feeding the entire...

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