交联海底电缆交流耐压试验研究及主要问题处理

Study on AC Voltage Withstand Test and Main Problem Processing for Cross-linking Submarine Cable

交联海底电缆交流耐压试验具有电压高、电流大的特点,现场普遍采用串并联混合谐振试验方式。通过对串并联谐振回路进行分析,计算出交联海底电缆耐压试验所需的设备参数,进而选择合适的试验设备,确保试验工作能够顺利开展。在此基础上,分析试验和运行过程中遇到的主要问题及其原因,提出解决思路。

The AC withstand voltage test of cross-linking submarine cable has the characteristics of high voltage and large current,and the series parallel hybrid resonance test method is widely used on site.In this paper,through the analysis of the series parallel resonant circuit,the equipment parameters required for the cross-linking submarine cable withstand voltage test are calculated,and then the appropriate test equipment is selected to ensure that the test work can be carried out successfully.On this basis,the main problems encountered in the process of test and operation and their causes are analyzed,and the solutions are put forward.