紧凑型252 kV GIS产品研发及单元化设计

Unitized Design and Product R&D of Compact 252 kV GIS

论述了国内外252 kV GIS的发展现状及趋势展望,详细介绍了某高压开关有限公司最新研制的额定参数为"252 kV-4 000 A-50 kA(3 s)-50Hz"的新一代紧凑型252 kV GIS的设计理念、关键技术、结构特点及型式试验情况。秉承"高可靠性、小型化、低成本"的设计理念,断路器采用自能灭弧室结构,配弹簧操作机构;隔离/接地开关通用化设计,与主母线气室独立;主母线三相共箱上侧布置;电流互感器整体浇注成型,有内置/外置式2种规格;隔离/接地开关的操作机构集成化设计,在机构箱内实现间隔内电气互锁;整间隔一体化运输、安装与调试。该产品拥有自主知识产权,已完成全套型式试验并通过国家新产品技术鉴定,成功应用于变电站工程。

This paper discusses the present situation and tendency of the development of 252 kV GIS at home and abroad, introduces the rated parameters of the newly developed ＂252 kV-4 000A-50 kA（3 s）-50 Hz＂ of a new generation of compact 252 kV GIS design concept, key technology, structure features and type tests Adhering to the ＂high reliability, miniaturization, low cost＂ design concept, circuit breaker, can adopt the arcing chamber structure with spring operating mechanism; Generalized design disconnetor/earthing switch, and the main bus-bar chamber independence; Main bus-bar three-phase upper layout box; Current transformer integral pouring shape, inner/outer type two kinds of specifications; Integrated design of operation mechanism of disconnetor/earthing switch, the insti- tutions in the implementation of interval electric interlock; The integration between transportation, installation and debugging. This product has independent intellectual property through the national new product technical appraisement, and has rights, has completed a full set of type test and been successfully applied to substation project.