CAJ | 학술논문

以±800 kV 云广特高压直流输电工程穗东换流站干式平波电抗器树枝状放电故障为背景,通过仿真分析验证了这次故障是由于平波电抗器隔音罩的横向金属连接螺栓螺栓松动导致电位悬浮所致,并提出了相应的改进措施和运行维护建议.
이±800 kV 운엄특고압직류수전공정수동환류참간식평파전항기수지상방전고장위배경,통과방진분석험증료저차고장시유우평파전항기격음조적횡향금속련접라전라전송동도치전위현부소치,병제출료상응적개진조시화운행유호건의.
Aiming at the tree discharge of ±800 kV smoothing reactors in ±800 kV Suidong Converter Station of Yunnan–Guangdong UHVDC transmission project, this paper makes a simulation of the fault, and concludes that it was induced by floating potential due to the looseness of stainless steel connecting bolts in soundproof cover of the smoothing reactor. Furthermore the improved measure and advice for operation and maintenance are brought forward.