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Thyristor failure cause

Stephen Biddle
Hi All


I've got a control system with thyristor failures, 11 of 16 to be precise.  This is too many to be bad luck.  Does anyone know if it's possible to do a post mortem?  I presume it must be over voltage or over temperature.  My simple view is one would be a hole and the other a charred mess.  Is it as simpe as that?


Thanks


Stephen
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  • Former Community Member
    0 Former Community Member
    Good morning,


    What is the equipment that has the failures? VFD or DC drive?


    Thanks,


    Jon
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  • Former Community Member
    0 Former Community Member
    Good morning,


    What is the equipment that has the failures? VFD or DC drive?


    Thanks,


    Jon
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