文档介绍：110kV降压变电站一次系统设计
摘要
,社会生产和生活对电能供应的质量和管理提出了越来越高的要求。城市供电系统的核心部分是变电站。因此,设计和建造一个安全、经济的变电站,是极为重要的。本变电站设计除了注重变电站设计的基本计算外,对于主接线的选择与论证等都作了充分的说明,其主要内容包括:变电站主接线方案的选择,进出线的选择;变电站主变压器台数、容量和型式的确定;短路点的确定与短路电流的计算,电气设备的选择(断路器,隔离开关,电压互感器,电流互感器,避雷器);配电装置设计和总平面布置;防雷保护与接地系统的设计。另外,绘制了六张图纸,包括:电气主接线图,电气总平面布置图,防雷接地图,110kV接线断面图,35kV接线断面图,10kV室内配电图。图纸规格与布图规范都按照了电力系统相关的图纸要求来进行绘制。
关键词:变电站;电气主接线;电气设备;设计
A DESIGN OF ELETRIC SYSTEM
FOR 110kV TERMINAL TRANSFORMER SUBSTATION
Abstract
Electric energy is the main energy and dynamism of modern city development. With development and progress of modern civilization, social production and is it put forward high request more and more to quality and management that electric energy supply to live. The core of city for supplying power is transformer. It is very important to design and build one safe and economical transformer substation. Besides paying attention to basic calculation of design for transformer substation, the design make satisfying narration toward choice and argumentation of main connection. The main content of this design include the choice of main connection for transformer substation; the choice of pass in and out line; the certainty of number, capacitance and model for main transformer; the certainty of short circuit points and calculation of short circuit; the choice electric equipment(breaker, insulate switch, voltage mutual-inductance implement, current mutual-inductance implement, arrester); the design for distribution and disposal for chief plane; the design for lightning proof protection and earth system. In addition, drawing six blueprints include the main wiring diagram; the disposal drawing of electric plane; the drawing of lightning proof protection and earth system; the drawing of 110kV connection; the drawing of 35kV connection; the drawing of 10kV indoor distribution. Both the specification of drawing and the criterion of disposal is based on requirement of drawing to electric power system.