基于异频小信号测试法的GIS式电流互感器现场误差检测  

Field Error Detection of GIS Type Current Transformer Based on Different Frequency Small Signal Test Method

作　　者：陈亮 CHEN Liang(State Grid Zhejiang Electric Power Company Jinhua Power Supply Co.,Ltd.,Jinhua Zhejiang 321000,China)

机构地区：[1]国网浙江省电力公司金华供电公司,浙江金华321000

出　　处：《信息与电脑》2024年第6期14-16,共3页Information & Computer

摘　　要：由于传统的气体绝缘金属封闭开关设备(Gas Insulated Switchgear,GIS)式电流互感器误差检测方法主要基于大信号测试,易受噪声和电源干扰的影响,检测精度较低。提出基于异频小信号测试法的GIS式电流互感器现场误差检测。向GIS式电流互感器输入异频小信号,并采集输出信号,对比输入和输出信号的频谱,从而推算出GIS式电流互感器误差,完成GIS式电流互感器现场误差检测。现场测试结果表明,设计方法下GIS式电流互感器现场误差检测结果符合设备精度要求,证实了其可行性。Because the traditional error detection method of gas insulated metal enclosed switchgear(GIS)current transformer is mainly based on large signal test,it is easy to be affected by noise and power interference,and the detection accuracy is low.The field error detection of GIS type current transformer based on different frequency small signal test method is proposed.Enter the different frequency small signal to the GIS current transformer,collect the output signal,compare the frequency spectrum of the input and output signal,so as to calculate the error of the GIS current transformer,and complete the field error detection of the GIS current transformer.The field test results show that the field error detection results of the GIS current transformer under the design method meet the requirements of the equipment accuracy,and confirm its feasibility.

关 键 词：异频小信号测试法 GIS式电流互感器 互感器误差 现场误差检测 

分 类 号：TM451[电气工程—电器]