New solventless silicone impregnant for severe duty, severe environment motor applications

Today´s trend in electric equipment is toward higher ratings. Greater performance is being demanded of every type of equipment and with increased ratings, of course, more heat must be dissipated. Two types of solutions are being used to cope with this increased heat load: 1. Liquid or compressed gas cooling; 2. higher temperature operation. The second solution requires an insulation system of a higher temperature class with thin walls to improve heat transfer characteristics. For small and medium-sized motors used in applications with widely varying loads, such as traction equipment the second alternative offers greater economy.