Epoxy casting composition for UHV service in compressed SF6 insulated equipment

Terrence E. Chenoweth, F. Yeoman, A. Cookson
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引用次数: 2

Abstract

A prototype, 1200 kV (nominal voltage) compressed gas insulated transmission line (CGIT) is being developed on a program for the U.S. Energy Research and Development Administration (ERDA). A critical component of this system is the insulator, which supports the aluminum conductor concentrically within the aluminum sheath. The line is filled with sulphur hexafluoride (SF6) gas at a pressure of 4.4 atmospheres absolute (50 psig) for the high voltage insulation and to help dissipate the heat from the conductor to the sheath. Two types of insulators are being considered for the prototype, to be made from either a cast epoxy, or a low-dielectric constant material. A comprehensive materials evaluation program has therefore been made, together with a detailed investigation of the required profile and construction of the insulator.
用于高压压缩SF6绝缘设备的环氧铸件组合物
美国能源研究与发展管理局(ERDA)正在开发一个1200千伏(标称电压)压缩气体绝缘输电线路(CGIT)的原型。该系统的一个关键部件是绝缘体,它在铝护套内同心地支撑铝导体。该线路在4.4大气压(50 psig)的压力下充满六氟化硫(SF6)气体,用于高压绝缘,并有助于将热量从导体散发到护套。两种类型的绝缘体正在被考虑用于原型,要么由铸造环氧树脂制成,要么由低介电常数材料制成。因此,我们制定了一个全面的材料评估计划,并对绝缘体所需的外形和结构进行了详细的调查。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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