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  1. rgermain

    exploding capacitors

    Examined pump motor yesterday. 7-1/2 HP, 240 VAC, 1 phase motor. Both start caps were blown. When I opened the discharge butterfly valve, the motor turbined in reverse approx. 60 - 80 RPM. Big dirty spot on shaft made it easy to see. Using a Fluke 787, I recorded approx. 1 volt being generated...
  2. rgermain

    exploding capacitors

    Don't know yet. I'll let you know next week.
  3. rgermain

    exploding capacitors

    Thanks guys, No, several people corroborate the spinning slowly version. It was during commissioning of the other pump being replaced due to smoke. I designed the panel and have used it at a half dozen sites or so over the years. I initially considered the motor generating concept (still my best...
  4. rgermain

    exploding capacitors

    This thread will be similar to a recent one regarding condensing fan motors, but since that one hasn't received a conclusive answer, I'm reluctant to hijack his thread. Application is a two pump skid. Pumps are in parallel with a common inlet header and a common outlet header. Only one pump will...

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