电力防污闪电导仪的设计
摘要：在我国飞速发展的今天，中国沿海和相对发达地区的电力设备开始频繁的出现污闪事件，所谓污闪是指在电气设备的表面,由于长期的使用各个污染源会排放出一些污秽物附着在上面,污秽物吸收了空气中的水分,使得绝缘强度降低,在电场力作用下出现的强烈放电现象。电气设备外绝缘的防污闪工作，是保证供电设备正常运行的重要条件，以确保电力系统的安全及稳定，而且在电路系统的各种工作中，户外高压电是发生污闪事故比较严重的地方，据统计，在电力系统的总事故中，污闪事件仅仅次于雷电，但是造成的损失是雷电的10倍以上，为了防止这么大的经济损失，与防污闪事故的发生，所以我们定期的对绝缘子进行等值度附盐密度的测试，这就是电导仪的工作内容，所以说电导仪和防污闪是息息相关的，而且电导测量在工业生产和科学实验中有着十分重要的意义，而且在这之中，随着 随着当今工业化社会的飞速发展，中国的电力行业已经进入了大电网、长距离和高质量的发展阶段中。电力系统越来越复杂，电力系统的安全稳定运行越来越重要。在电力系统中，输电设备绝缘的污秽闪络事故一直是影响输电设备安全运行的重要因素，成为主要困扰我国的主要问题之一。有关部门对如何预防污闪，做出了相关的工作，也是电力系统设计、施工、生产和科研运营部门中的一个相当重要的问题。
【关键字】防污闪 电导仪 电导盐密仪
Abstract
Today in the rapid development of our country, the powerequipment in China coastal and relatively developed areas began to frequent emergence of pollution flashover events, the so-called pollution flashover is on the surface of electrical equipment, due to the long-term use of all sources of pollution will emit some dirt attached to the above, filth absorb the moisture in the air, the dielectric strength decreased, under the action of electric field force strong discharge phenomenon. Electrical equipment external insulation flashover, the power supply is an important condition to ensure the normal operation of equipment, to ensure the safety and stability of the power system, and work in a variety of circuit system, outdoor high-voltage flashover accident is serious, according to statistics, the total accidents in power system, pollution flashover only after the event of lightning, but the loss caused by lightning is more than 10 times, in order to prevent such a large economic loss, and the occurrence of pollution flashover accidents, so we regularly on the equivalent degree of insulator salt density test, which is the content of the work so that the conductivity meter, conductivity meter and flashover are closely related moreover, the conductance measurement plays an important role in industrial production and scientific experiments, and in this, along with the rapid development of industrialization, the power industry has entered the In the large power grid, high voltage, long distance, high quantity stage, grid structure is increasingly complex, safe and stable operation of the power system is becoming more and more important. In power system, the pollution flashover accident of power transmission and transformation equipment external insulation has been an important factor affecting the safe operation of the system, which is one of the problems troubling systems at home and abroad.How to prevent the dust of the pollution flashover accident is a very important issue in the design, construction, manufacturing, scientific research and operation Department of power system.
[keyword] Anti pollution flashover Electrical conductivity meter Conductance salt density instrument
1.4防污闪电导仪的设计背景……………………………….. 4
2.1电力防污闪电导仪的设计要求……………………………. 5
2.2电导仪对污闪事故的重要性 ……………………………. 5
2.5电导测量的发展趋势………………………………….. 11
3.5 AD5933芯片概述…………………………………….. 14
第4章 系统程序的设计…………………………………….. 25
