城市轨道交通供电系统35kV接地变压器故障仿真

Simulation on 35 kV Earthing Transformer Fault

针对上海轨道交通8号线主变电站内接地变压器故障进行了详细的分析。结合现场保护装置故障录波所得到的故障信息和保护动作数据,采用PSCAD软件对该供电系统进行建模仿真计算。对比仿真计算结果和故障录波的详细信息,对该故障的整个发展过程进行了阐述,并对系统的可靠运行提出了参考意见。

This paper analyzes the faults of earthing transformer on Shanghai metro Line 8. Compared to the specific fault records and the trip data of breakers from the field relay, the paper establishes a module of power system in Line 8. According to the result obtained from the simulation of the fault details of earthing transformer by using PSCAD, the paper expatiates the whole process of the faults, puts forward some suggestions to the reliability of the power system operation.