The Explore And Experience Of Crosslinked Polyethylene Cable Above 110kV In Fault Detection Technology

The appearance of high voltage cables enhance urban aesthetics, improve the reliability of power supply lines. Meanwhile, with the rapid increase in the length of the cable operation and maintenance, the problem of years of growth in the cable run, run cable equipment maintenance, testing and other aspects also will be revealed. Once the power cable fault, the fault is extremelydifficult to explore and processing occurs, causing huge power loss. Therefore, how to quickly and accurately locate cable fault, reducing power losses, is an issue of increasing concern to the cable run department. In other words, the cable requires a complete set of fault diagnosis and effective solution.Cable fault tester familiar with the need to explore the structural characteristics of the cable and the cable operating environment, select the appropriate method to explore, exploring through the correct steps, judging by the gradual exclusion, until you find the point of failure.Secondly, this paper describes the operating conditions in Ningbo transmission cable, because cable fault, steps and methods to explore the cable fault. By the principle of the situation XLPE cable faults are classified, described the current mainstream approach to explore the cable fault, and a variety of measurement methods, the use of note were analyzed. The main cable fault with the current procedures and methods to explore, the best way to sum up the process of transmission cables running trouble shooting.At last the research utilizes the theory and practice of research methods in existing cable fault locating the general theory and methodology, based on practical experience combined with the cable running to be refined and summarized, and the current problems of fault location Shangqie supplement analysis to get a systematic approach or program, and ultimately guide the work practices.Meanwhile, starting from the actual work, combined with my specific application in actual cable fault measurement team, detailing the cable fault measurement procedures and measurement conditions, so that the city power grid reliability is further improved.