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在分析三相V,v结线变压器相序轮换的基础上,研究了采用三相V,x结线变压器的高铁牵引变电所外部电源相序轮换规则。通过分析研究,发现牵引变电所进线相序/馈线相位、变压器联接组号、牵引所和铁路相对位置对牵引变所的主接线形式存在相互影响。在保证牵引变电所馈线相位正常轮换的前提下,牵引变电所主接线和总平面的形式将受进线相序、变压器联接组号的影响。通过合理调整牵引变电所的进线相序和变压器联接组号,铁路沿线各牵引所可以采用形式一致的主接线和总平面布置,可以简化设计,并方便维护管理。
Based on the analysis of phase sequence rotation of three-phase V, v tie-line transformers, the phase sequence rotation rules of external power supply for high-speed rail traction substation using three-phase V, x junction transformers are studied. Through the analysis and research, it is found that there is an interaction between the main phases of the traction substations and the phases of the main phases of the traction substation, the phase sequence of the feeder line, the phase of the feeder line, the connection number of the transformer, the traction station and the relative position of the railway. Under the premise of ensuring the normal rotation of the feeding line of the traction substation, the form of the main wiring and the general plane of the traction substation will be affected by the phase sequence of the incoming line and the connection number of the transformer. By reasonably adjusting the phase sequence of the traction substations and the transformer connection group numbers, all the traction institutes along the railway line can adopt the same main wiring and overall layout, which can simplify the design and facilitate the maintenance and management.