Hi all, I was wondering if someone could make some sense of these motor sizes & outputs comparisons. They are both around the same vintage. Attached are photos of two 3Phase motors. I am intending to use one for a new RPC I am preparing to build. The smaller one weighs 67kg and is 10Kw with a 19.7Amp output and has a speed of 1455 rpm.
The second motor weighs 115Kg and is 11Kw with a 20-22Amp output and has a speed of 1465 rpm. The size difference between these two motors is quite significant and the weight is 19kgs shy of double on the bigger one. Is it possible that the name plate is incorrect on one of them? For the minor gain in power (as on name plates), the physical size difference seems inperportionate to the output?
any thoughts are welcome.
The second motor weighs 115Kg and is 11Kw with a 20-22Amp output and has a speed of 1465 rpm. The size difference between these two motors is quite significant and the weight is 19kgs shy of double on the bigger one. Is it possible that the name plate is incorrect on one of them? For the minor gain in power (as on name plates), the physical size difference seems inperportionate to the output?
any thoughts are welcome.