电力电容器外壳耐受爆破能量试验系统设计  

Design of Resistant Bursting Energy Test System of Power Capacitor Enclosure

作　　者：杨仁旭 丁锦华 肖奕 赵婧 廖学森 丁晓军 Yang Renxu;Ding Jinhua;Xiao Yi;Zhao Jing;Liao Xuesen;Ding Xiaojun(China National Quality Testing and Inspecting Center for Smart Grid Transmission and Distribution Equipment(Guangdong),Dongguan,Guangdong 523000,China;Guang’an Electrical Testing Center(Guangdong)Co.,Ltd.,Dongguan,Guangdong 523000,China;Guangdong Institute of standardization,Guangzhou 510240,China)

机构地区：[1]国家智能电网输配电设备质量检验检测中心(广东),广东东莞523000 [2]广安电气检测中心(广东)有限公司,广东东莞523000 [3]广东省标准化研究院,广州510240

出　　处：《机电工程技术》2024年第9期298-301,共4页Mechanical & Electrical Engineering Technology

基　　金：广东省重点研发计划项目(2020B0404020003)。

摘　　要：电容器外壳耐爆性能是电力电容器的重要安全性指标之一,相关的行业标准仅给出了该项测试的具体要求,并未对测试方法进行明确的要求。通过分析现行标准对电力电容器外壳耐受爆破能量试验的具体要求,基于RLC回路电流法,对试验回路参数设计进行理论计算。基于理论计算数据,设计出电力电容器外壳耐受爆破能量试验系统所需储能电容、电阻、电感等元件参数,并根据放电电流特点选取了电流测量元件参数,最终搭建出完整测试系统。同时选取了3种规格电容器进行了验证测试,测试结果表明,基准放电波形的相邻峰值比均大于0.8,放电电流波形的频率均大于4kHz,符合DL/T1774中关于电容器外壳耐受爆破能量试验中对放电电流波形的要求,进一步验证了该方法设计的电容器外壳耐受爆破能量试验装置符合实际应用需求。The bursting energy of capacitor shell is one of the important safety indicators of power capacitors.The relevant industry standards only give the specific requirements of the test,but not the clear requirements for test methods.the specific requirements of current standards for bursting energy test are analyzed.Based on the theoretical calculation using RLC loop current method the parameters of energy storage capacitor,resistance,inductance and other components required by the bursting energy test system are designed,and the current measurement element parameters are selected according to the characteristics of discharge current,and a complete test system is finally built.At the same time,three kinds of capacitors were selected for verification test.The test results show that the adjacent peak ratio of the discharge current waveform is greater than 0.8,and the frequency of the discharge current waveform is greater than 4 kHz,which conforms to the discharge current waveform in the bursting energy test of the capacitor shell in DL/T 1774 standard,which further verifies that the capacitor shell bursting energy test device designed by this method meets the application requirements.

关 键 词：电容器外壳 耐受爆破 试验系统 基准放电波形 

分 类 号：TM53[电气工程—电器]