Turning

Subject:
Re: It's Not Running Again

Bill Howatt
Rightly or wrongly I consider a 3-phase motor to be a pretty reliable device because of their simplicity compared to a single-phase motor with its startup circuit stuff.
However, if the motor does lose a phase because of a bad wire/connection or internal fault and runs without it, the current will increase in the remaining 2 phases and cause a fault. So I guess the Powermatic recommendation makes sense even though I am more likely to suspect the complex electronics of the VFD and they likely have knowledge of what has happened to users in the past.
How hard would it be to take the motor to a shop (after carefully inspecting the wires and connections to the motor)?
Bill

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