Are there problems using a vfd on two speed 5hp/3hp 460vac 60hz motor?
Separate windings. One winding powered, and one winding open, for high.
To make matters worse. Motor is 60 to100 feet from control panel.
Vfd near motor is an option. Unprotected outdoor pit in Minnesota!
There are 4 to change over.
Seems there are certain designs that have cleaner output for long runs.
Also seems good practice would mean some type of termination of unused winding.
In a pinch I'll talk them into changing motors.
Separate windings. One winding powered, and one winding open, for high.
To make matters worse. Motor is 60 to100 feet from control panel.
Vfd near motor is an option. Unprotected outdoor pit in Minnesota!
There are 4 to change over.
Seems there are certain designs that have cleaner output for long runs.
Also seems good practice would mean some type of termination of unused winding.
In a pinch I'll talk them into changing motors.