JYC型高压电力设备绝缘参数测试仪的数字低通滤波器的设计.docVIP

基于JYC61型高压电力设备绝缘参数测试仪的数字低通滤波器的设计 摘 要 高压输变电设备的安全运行是影响电力系统安全，稳定和经济运行的重要因素，高压电力设备发生的绝缘事故不仅会造成设备本身的损坏，而且会造成多方面的损失。JYC61型绝缘参数测试仪对电气设备的介质损耗角，流过介质的电流，介质电容量，设备接地电阻,以及接入电气设备的三相交流电的ABC三相电压，三相电流，功率因素进行在线测量，并存储于测量装置的RAM中。当通信计算机有数据请求时，测量装置将根据数据采集器请求进行数据应答，并通过CAN总线数据链路层协议进行回应。通信计算机将每隔一定的时间实时进行数据请求，如果接收到电气设备的介质损耗角，流过介质的电流和介质电容量三个参数中有一个参数超过了设备的临界值，那么通信计算机将对应的电气设备号及对应的参数值通过TCP/IP数据链路发送到主控计算机。 关键词：绝缘参数 数字低通滤波器 介质损耗 JYC61 high voltage electrical equipment insulation parameters tester based digital low-pass filter design Abstract The safe operation of the high voltage transmission and distribution equipment important factors to affect power system security, stability and economic operation, the insulation of high voltage electrical equipment accidents not only cause damage to the device itself, but will also cause many losses. JYC61 insulation parameters tester flow through the dielectric loss angle of electrical equipment, medium current, medium power capacity, equipment grounding resistance, as well as access to electrical equipment ABC three-phase three-phase AC voltage, three-phase current, power factoronline measurement, the measuring device and stored in the RAM. When the communications computer when a data request, the measurement device according to the data acquisition request data response, and respond through the CAN bus data link layer protocol. Communication computer at certain time intervals in real time, the data request, if the dielectric loss angle of the received electrical equipment, flowing through a parameter exceeds the threshold value of the device current of the medium and medium power capacity of the three parameters, then the communication computerthe electrical equipment corresponding to the number and the corresponding parameter value is transmitted via TCP / IP data link to the master computer. Keywords: insulation parameters of digital low-pass filter dielectric loss 0 引 言 JYC61型绝缘参数测试仪的技术指标有：介质损耗角的测量准确度、高压电力设备接地漏电地漏电流测量准确度、介质电容量测量的准确度、漏电流测量准确度、接地电阻测量