Dr. Hillbilly
Aluminum
- Joined
- Dec 6, 2019
- Location
- Oregonia, Ohio
I have at least one problem. My new VFD only supports Delta, and the motor which converted my 1904 LeBlond from steam power to electric in the 30s is Wye.
The motor is a 9 wire unit so I can rewire it for Delta. However the plate on the motor specifies Wye connection for moth high voltage and low.
Will I abuse the motor by converting it to Delta? The current will increase, but is that typically a problem in these old heavy motors? (the starters in my old Flathead Fords love to run on 12V rather than 6!)I would like for this motor to see its 100th birthday...
And if Delta will not damage it, how will the power curve change?
I may have a 2nd problem. I only read the "fine print" in VFD instructions and determined that it was intended only for Delta after connecting it to the motor. When the motor is switched on the VFD faults out instantly. The motor shaft does not even twitch. Even if the VFD was intended for Delta I would have expected it to take some milliseconds for the additional current to create a fault. So is my new VFD DOA? If so perhaps I just need to purchase a VFD which supports Wye.
The motor is a 9 wire unit so I can rewire it for Delta. However the plate on the motor specifies Wye connection for moth high voltage and low.
Will I abuse the motor by converting it to Delta? The current will increase, but is that typically a problem in these old heavy motors? (the starters in my old Flathead Fords love to run on 12V rather than 6!)I would like for this motor to see its 100th birthday...
And if Delta will not damage it, how will the power curve change?
I may have a 2nd problem. I only read the "fine print" in VFD instructions and determined that it was intended only for Delta after connecting it to the motor. When the motor is switched on the VFD faults out instantly. The motor shaft does not even twitch. Even if the VFD was intended for Delta I would have expected it to take some milliseconds for the additional current to create a fault. So is my new VFD DOA? If so perhaps I just need to purchase a VFD which supports Wye.