摘要详情

ID / 提交时间

198 / 2024-04-15 23:56:46

标题

Influence of rotating Angle of static and dynamic contact notch assembly on arc shape and breaking ability of vacuum interrupter

关键字

Assembly rotation Angle vacuum interrupter arc mode breaking ability

主题及专题

全体主题

状态

摘要录用

作者

展布顾 / 西安交通大学

Fei Yang / State Key Laboratory of Electrical Insulation and Power Equipment； China； Xi’an Jiaotong University

Hongbin Chen / Xi'An Jiaotong University

摘要

At present, China's electric power industry is developing rapidly, and the high voltage and high current conditions put forward higher standards for the breaking capacity of vacuum interrupter. In recent years, the mainstream research on improving the breaking ability of vacuum interrupters focuses on optimizing the contact structure, improving the breaking time, and finding the key factors affecting the arc distribution at different breaking stages. The current research shows that improving the breaking ability of vacuum interrupter by optimizing the contact structure has reached the limit. In addition, although the improvement of the contact structure can enhance the longitudinal and transverse magnetic field at breaking time to control the arc, it brings a series of additional problems. For example, the longer electric current flow path increases the temperature rise of the contact, the complex structure affects the mechanical life of the contact, and the complex contact structure also requires more elaborate processing technology and higher costs. This paper presents a method to improve the breaking ability of the contact by changing the Angle of rotation of the groove assembly of the dynamic and static contact. The influence of rotation Angle of dynamic and static contact notch assembly on arc shape control and breaking ability is analyzed in detail, and the evolution law of this method on arc shape and breaking ability is concluded. The simulation results show that the arc magnetic field distribution intensity can be significantly improved by changing the rotation Angle of the dynamic and static contact assembly. The experimental results show that the arc shape can be better controlled by changing the rotation Angle of the dynamic and static contact assembly, and the breaking ability of the vacuum interrupter can be improved. Compared with the scheme of optimizing the contact structure, this scheme has the obvious advantages of simple and convenient, efficient and practical, low price and high reliability. It provides a more efficient and simple scheme for improving the breaking capacity of the current vacuum interrupter, and has a high popularization and application value.