关键词: 隔爆型电缆连接器, 载流量, 磁热耦合, 老化

Abstract:

Flame-proof high voltage cable connectors are widely used in the mine transmission lines.The high voltage cable connector LBG1-200/6 is employed to analyze the accident causes of the cable connector.The electrical,insulation and thermal structure and properties of the connector are firstly introduced.Then the electromagnetic field and thermal field coupling model of cable connector are established by the finite element method,and its temperature distribution under different environments are plotted and analyzed.The additional temperature rise and the ampacity change caused by dielectric loss are quantitatively analyzed by example.Example shows that the proposed methods are efficient in security running of the mining cable connector.

Key words: flame proof cable connector;ampacity;electromagnetic thermal coupling;aging