摘要
PT二次侧电压和泄漏电流是变电站容性设备在线监测装置的两个主要监测量,对其进行测量准确度的测试与评价是在线监测装置调试的重要内容。本文设计了一种新型便携式容性设备在线监测装置调试仪,其组成包括标准源模块、数据采集模块及控制与数据处理模块。该仪器能够输出一定频率范围内的电压和电流信号,模拟实际容性设备的PT二次侧电压及泄漏电流,并加以采集和分析处理,给出标准测量值。该设备电压和电流两路独立输出,幅值范围宽,并能够施加频率波动和谐波干扰,适应各种在线监测装置的被监测量模拟。与硬件系统相配套的软件操作简单、功能丰富,能够实现全自动调试。本调试仪可用于容性设备在线监测装置的入网前实验室性能试验及变电站定期检修中的校核与调试。
The secondary voltage of PT and leakage current are the two main monitoring targets of capacitive equipment online monitoring device in substations, and the measuring accuracy test and evaluation of such device is an important part of functional debugging. This paper introduced a kind of portable debugging instrument for capacitive equipment online monitoring device, which is consist of standard source module, data acquisition module and control & data processing module. The instrument is able to output voltage and current signal of a certain frequency range to simulate the secondary voltage of PT and leakage current, and give the standard value. The independent voltage and current output, wide amplitude range and harmonic simulation make the instrument adapt to various kinds of capacitive equipment online monitoring device. The supporting software is functionally rich and easy to operate, and automatic debugging can be realized. The debugging instrument could be used in pre-install performance testing and verification and debugging of substation periodic maintenance.
出处
《电气技术》
2014年第2期4-8,19,共6页
Electrical Engineering
关键词
容性设备
在线监测
调试仪
便携式
capacitive equipment
online monitoring
debugging instrument
portable
