论文总字数：15719字

摘 要

真空断路器内的真空灭弧室，也叫真空开关管，是高压电力开关的核心部件，它的主要功能是利用灭弧室真空的绝缘性使高压电路关上开关后后能迅速熄弧并抑制电流，以防止因高压引起的事故和不测，主要运用于电力的输配电控制系统，真空灭弧室从用处上又分为主要用于电力部门中的变电站和电网设施的断路器用灭弧室和主要用于电网的终端的负荷开关用灭弧室。

中国进行“无油化”革新配电系统后，开关技术的发展速度迅猛，真空开关以其自身的杰出优点在中高压领域获得了非常普遍的应用，在电力系统中高压领域的占有率节节攀升。真空断路器是以其真空灭弧室内的的真空度情况作为绝缘基础的，所以，灭弧室内的真空度降低会使到电力系统的安全性降低。而真空中的绝缘能力也就是开断电流能力，又与真空度的高低有关，只有在一定的真空度范围内，只有高真空度才能保障真空断路器的性能，所以，研究如何在测定灭弧室内的真空度具有非常重要的理论和现实意义。

本文简单的分析了真空开关的工作原理和它在电力系统的应用。概括了真空灭弧室真空度检测技术的技术现状,阐述了真空断路器的发展趋势，归纳了现在常用方法的不同和优缺点，并提出了一种真空断路器在线检测的思路，并且阐述了我的感想。

关键词：真空断路器灭弧室 屏蔽罩 在线检测 真空度

The Design of On-line Detecting Vacuity for Interrupter of Vacuum Circuit Breaker

Abstract

Vacuum circuit breaker, can be also called vacuum switch tube,it is the core component of the high voltage power switch, his role is largely by excellent insulation tube vacuum to high voltage circuit to cut off the power supply quickly after the arc and suppress current, and avoid accidents and accident happening, is mainly used in electric power transmission and distribution control system, vacuum arcing chamber is divided into circuit breaker from the purpose with arc extinguish chamber and the load switch with arcing chamber, circuit breaker arcing chamber is mainly used in the power sector in transformer substation and power grid infrastructure, load switch with arc extinguish chamber is mainly used for power grid end users.

Along with our country distribution system "oil free" the implementation of the renovation work, circuit breaker technology has developed very quick, superior vacuum circuit breaker with its own characteristics in the field of medium voltage gain the application is very broad, share in the field of medium voltage power system is more and more high. Vacuum circuit breaker with vacuum arcing chamber vacuum conditions as the basis of their work, so his vacuum degree will directly affect the operation of the power system security. And vacuum dielectric strength of the current and open circuit ability related to vacuum, only within the certain degree of vacuum, vacuum switch equipment’s ability can be guaranteed, so the vacuum degree of vacuum arcing chamber test and on-line detection method research has very important theoretical and practical meaning.

This paper analyzes the principle of vacuum circuit breaker and application in power system. Outlines the vacuum degree of vacuum arcing chamber testing technology research status, this paper states the development trend of the vacuum circuit breaker, analyses the existing methods of different advantages and disadvantages, and puts forward a method of on-line detection of vacuum circuit breaker, and expounds some own feeling and view, and the vacuum degree of vacuum arcing chamber detection technology development prospect were discussed.

Keywords：Vacuum circuit breaker On—line Detecting Shield Vacuum degree

目 录

摘要…………………………………………………………………………………I

ABSTRACT………………………………………………………………………II

第一章 引言………………………………………………………………………1

1.1 真空开关简述………………………………………………………………1

1.2 真空断路器灭弧室基本结构原理…………………………………………1

1.3 真空灭弧室真空度概述……………………………………………………1

1.4 真空断路器的应用与发展前景……………………………………………2

第二章 灭弧室真空度在线检测技术概述…………………………………4

2.1灭弧室真空度在线检测技术的国内外现状

2.1.1 离线检测方法………………………………………………………4

2.1.2 在线检测方法………………………………………………………5

2.1.3 检测方法分析………………………………………………………6

2.2灭弧室真空度在线检测技术概念…………………………………………7

2.3本文的研究内容……………………………………………………………7

第三章 真空断路器灭弧室真空度在线检测方案………………………9

3.1 理论依据………………………………………………………………………9

3.2 方案概述………………………………………………………………………9

3.3 试验研究………………………………………………………………………10

3.3.1 试验系统组成………………………………………………………10

3.3.2 真空校准系统………………………………………………………10

3.3.3 传感器………………………………………………………………12

3.3.4 交流高压电源系统…………………………………………………13

3.4 在线检测………………………………………………………………………14

第四章 结语 ……………………………………………………………………16

参考文献 …………………………………………………………………………18

致谢…………………………………………………………………………………19

请支付后下载全文，论文总字数：15719字