三断口八跨锚段关节式电分相过电压分析

Analysis of Over-voltage of Eight-span Overlap Section Type Phase Break with Three Breaks

针对电力机车通过锚段关节式电分相时产生的过电压可能造成车顶绝缘击穿的现象,利用PSCAD/EMTDC软件建立仿真模型进行研究。对比分析机车通过七跨与三断口八跨锚段关节出现的过电压幅值大小,表明三断口八跨锚段关节对过电压有一定的抑制作用。

With regard to the breakdown of locomotive roof insulation caused by the over voltage generated during the electric locomotive passing through the overlap section type phase break, the researches are made on the basis of the simulation model established by PSCAD/EMTDC software. The comparison and analysis of voltage amplitudes generated during the electric locomotive passing through the seven-span overlap section type phase break and eight-span overlap section type phase break with three breaks have been made, and the results indicate that eight-span overlap section type phase break with three breaks has certain functions on suppression of the overvoltage .