Thermalastic Epoxy Insulation System
For Unequalled Dielectric Strength and Voltage Endurance
Thermalastic is a proprietary, integrated insulation system that impregnates the wound and connected stator with a solventless epoxy resin. Developed by Westinghouse over 40 years ago, Thermalastic is acknowledged as the industry’s premier insulation system and is under continuous development to maintain its position as the world’s finest.
Mica is the heart of the Thermalastic insulation system and is applied to all of the stator coils. The form-wound stator is postimpregnated with epoxy resin in a vacuum pressure tank and then transferred to an oven for polymerization. The cycle is repeated to ensure elimination of corona generating voids. The result is a stator insulation system that withstands prolonged voltage stresses, moisture, dirt, thermal cycling and chemical contaminants. |
