Thank you for the excellent information. Our motor is rather old. It is probably operating within it's service factor rating of 1.15 continuously and we realize that is a problem. We know that it must be replaced soon. (Approx. $4,000.00) Unfortunately my meter is not a true rms. Can someone recommend a nice little clamp on type true rms FLUKE. What is the newest model number available? I really should buy one.