配电变压器振荡型雷电冲击试验波形产生及调节方法研究  

Research on Waveform Generation and Adjustment Method of Oscillating Lightning Impulse Test for Distribution Transformer

作　　者：倪浩 李伟 赵述金 史华康 张轩瑞 李军浩[2] NI Hao;LI Wei;ZHAO Shujin;SHI Huakang;ZHANG Xuanrui;LI Junhao(State Grid Shanghai Electric Power Company Material Company,Shanghai 200235,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国网上海市电力公司物资公司,上海200235 [2]西安交通大学电气工程学院,西安710049

出　　处：《高压电器》2023年第12期122-129,共8页High Voltage Apparatus

基　　金：国家自然科学基金资助项目(51877169)。

摘　　要：振荡型雷电冲击具有产生效率高、易于调波的特点适合在现场试验应用。文中针对配电变压器的参数和结构特点,提出振荡型雷电冲击电压的产生方法,研究了波形影响因素和现场调波方法。在仿真的基础上,在10kV配电变压器上开展试验。结果表明,配电变压器振荡型雷电冲击试验可以采用低压开路的接线方式获得满足标准要求的振荡型雷电冲击波形。通过调节调波电感可以改变振荡型冲击电压波前时间和振荡频率,调节波头电阻和波尾电阻可以改变波尾时间。利用文中所研究方法,可以在配电变压器上产生符合IEC60060-3:2006规定的振荡型雷电冲击电压。Oscillating lightning impulse(OLI)has such characteristics as high efficiency and convenient wave ad-justment and is therefore suitable for field test.According to the parameters and structural characteristics of distribu-tion transformer in this paper,the generation method of OLI voltage is proposed,and the influence factors of wave-form and on-site wave adjustment method are studied.On the basis of simulation,the test is carried out on 10 kV dis-tribution transformer.The results show that OLI test meet standard requirements using a low-voltage open circuit wir-ing mode.The front time and oscillation frequency of the OLI can be changed by adjusting the modulated inductance,and the tail time can be changed by adjusting both the front and tail resistance.The use of the method researched in the paper can generate the OLI voltage complying with the standard specified in IEC 60060-3:2006.

关 键 词：配电变压器 振荡型雷电冲击 波形调节 IEC60060-3:2006 

分 类 号：TM421[电气工程—电器] TM855