SF_6设备NTC电阻温度保持装置的有限元仿真分析

Finite element analysis of NTC resistance heating system based SF_6 equipment

针对低温下SF6设备液化的问题,从简化设备结构、降低故障率的角度出发,提出一种采用NTC电阻加热方法。从NTC电阻、SF6设备结构、电路及热分析的角度对该方法进行研究,得出主要参数对该系统的影响机理和趋势,并通过有限元仿真进行了验证。

Aiming at the liquefaction of SF6 at low temperature, from the ment structure and lowering fault ratio, this paper presents a new heating angle of views including simplify equip system adopting NTC. By studying NTC resistance, structure of SF6 equipment, circuit, and thermal analysis, it also finds the mechanisms and influence of the main parameters on the system, which are verified by finite element simulation.