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...
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...
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...
