绝缘油介电强度测试仪的设计  

The design of an insulating oil dielectric tester

作　　者：崔雪英[1] 贡照天[1] 

机构地区：[1]铜陵学院电气工程系,安徽铜陵244000

出　　处：《工业仪表与自动化装置》2007年第3期64-67,共4页Industrial Instrumentation & Automation

基　　金：安徽省高校青年教师科研"资助计划"项目(2005jq1238)

摘　　要：介绍了单片机控制的绝缘油介电强度测试仪的工作原理、硬件电路及软件设计,并在硬件电路设计中注意了系统的抗干扰问题;采用了555定时器电路切断高压电源,解决了高压击穿时长时间放电干扰现象;试验表明,该仪器能够较好的完成要求的测试功能,而且测试数据准确可靠,性能稳定。This paper presents the working principle of an insulating oil dielectric tester and the design of its hardware circuit and software, including the signal collecting circuitry of breakdown voltage, breakdown current detection, controlling electromotors to rotate in a prescriptive direction. The current detection circuit is provided with the 555 timer, which can resolve the power-off of the high tension supply. The experiment shows that the instrument is competent to test the data reliably.

关 键 词：绝缘油 介电强度 监测电路 信号采集 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]