摘要
研究了一种基于无线传输的工频电场测量警示仪,该测量警示仪采用电压感应式传感器测量目标点的工频电场强度,采用数码管显示测量点的电场强度大小。如果测量值超出设定的标准值,仪器可以采用声音报警提示目标场所处的范围,电力职工可以根据测点电场强度以及相关标准判断在该区域的工作时间。此外,测量仪还能以无线传输的方式将测量值发送给到PC机,PC端分析软件可以自动保存数据,并根据测量值以及测量点的位置参数,以等值线的形式显示目标区域的工频电场分布,为电力部门提供参考。先后在两座500kV变电站对该工频电场测量与警示仪进行了现场测试,测试其工作的稳定性与准确性。试验结果表明本文所研究的工频电场测量与警示仪能够准确测量工频电场强度,无线传输模块在高压环境下能够稳定工作。
In this paper,an electric field measurement and alarm device（WEFMA1.0） was developed,which can measure the power frequency electric field and make alarm according to the measured data at the measuring points.What＇s more,the measurement and alarm device can send the measured data to the PC for further data analysis by wireless transmission.The clerk can confirm the working time for the objective area.Tests were carried out in 2 substations,and results indicate the WEFMA1.0 can work stably and measure the electric field accurately.
出处
《电测与仪表》
北大核心
2011年第1期21-25,共5页
Electrical Measurement & Instrumentation
关键词
工频电场
测量
警示仪
环评
无线
power frequency electric field
measurement
alarm device
environmental assessment
wireless
