jackalope
Titanium
- Joined
- Oct 8, 2004
- Location
- St. Peters, MO
I am needing some imput regarding a transformer.
Here's my situation. I have a Nardini 1440 that I have been using for a few years with no "real" problems. The motor is a dual hp rated WEG motor 3/6hp. It is a single voltage 440v motor. I have been running this on 220v 3ph power with no issues other than occasionally it won't get up to speed immediately and in that case I flip it off and then on again. When on, it operates smoothly and quietly and no problems bogging down with heavy cuts, etc.
I have recently been told that this is bad for the motor and that I need a transformer to prevent premature motor failure. Sooooo, my question at this point is, what is my MINIMUM KVA requirement for this lathe motor to function properly?
I am currently running my machines off of a 30hp rpc that is fed by 50amp supply. Yes, I said 50amp. It works and that is all I have.
I have been told I need a minimum of 20kva, but someone else has said that according to the calculation, a 15kva will be more than adequate and even a 9kva is theoretically okay.
Anyone here want to chime in??
Thanks in advance!!!!----Grant
Here's my situation. I have a Nardini 1440 that I have been using for a few years with no "real" problems. The motor is a dual hp rated WEG motor 3/6hp. It is a single voltage 440v motor. I have been running this on 220v 3ph power with no issues other than occasionally it won't get up to speed immediately and in that case I flip it off and then on again. When on, it operates smoothly and quietly and no problems bogging down with heavy cuts, etc.
I have recently been told that this is bad for the motor and that I need a transformer to prevent premature motor failure. Sooooo, my question at this point is, what is my MINIMUM KVA requirement for this lathe motor to function properly?
I am currently running my machines off of a 30hp rpc that is fed by 50amp supply. Yes, I said 50amp. It works and that is all I have.
I have been told I need a minimum of 20kva, but someone else has said that according to the calculation, a 15kva will be more than adequate and even a 9kva is theoretically okay.
Anyone here want to chime in??
Thanks in advance!!!!----Grant