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... as your partner not just your supplier.
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... as your partner not just your supplier. |
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Elettra’s Thermalastic Epoxy Insulation System Elettra utilizes a premium quality insulation system, the critical component being a vacuum pressure impregnation of Thermalastic epoxy resin. The Thermalastic insulation system was introduced by Westinghouse in 1949 and as an official Westinghouse licensee, Elettra has also adopted the same process which has been proven by more than 50 years of outstanding in-service performance and backed by continuous development.. Our Thermalastic insulation system is a class F insulation system. Class F insulation provides a comfortable operating thermal margin over class B temperatures generally specified by customers. Elettra's insulation system has been through rigorous testing, including ANSI/IEEE 275, and tests for electrical strength, voltage endurance, moisture resistance, chemical resistance, thermal cycling, mechanical strength, and abrasion resistance. (Class H polyester insulation is available as an option)
Mica Ground Insulation
- The epoxy mica bond used in the wrappers and tapes co-reacts with the epoxy impregnate
to provide a completely integrated insulation system. Solventless, Thermosetting Epoxy Resin - Epoxy resins are formulated completely from solids and become permanently rigid when cured, resisting moisture and chemical pollutants. "U" Shaped Brazed Coil Connections for Sealed Systems - Coil-to-coil connections are brazed and thoroughly insulated to provide maximum protection against moisture. Custom Designed Bracing Systems - Bracing systems are designed to fit the size, speed and application of each machine and prevent any movement of the coils that would lead to a breakdown of the insulation system. VPI Eliminates Corona-Generating Voids - The vacuum pressure impregnation (VPI) cycle draws out air, insuring a void-free stator insulation which decreases the possibility of corona discharge. Minimum of Two Complete VPI Cycles - After the stator is wound, it is given two vacuum pressure impregnation treatments with solventless resins for double protection. Post Impregnated System - Post-impregnation provides for better thermal conductivity because of the elimination of voids and the increased amount of copper in the slot. For more information on our Thermalastic epoxy resin insulation system please refer to ETI's catalog. |
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