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电气化铁道采用2×25千伏自耦变压器供电方式是最近十年来才发展起来的新型供电方式。它以技术经济效益高、防干扰性能好而受到许多国家电气化铁道工作者的重视。本文结合我国国情首次提出采用三相三线圈“十字交叉”结线变压器,取消馈线自耦变压器的构成方案,并论证了它的技术经济优越性。该方式已在大秦线电气化铁路工程中采用。
The electrified railway adopts 2 × 25 kilovolt autotransformer power supply mode is the new power supply mode developed in the recent ten years. It is highly technical and economic benefits, good anti-interference performance by many national electrified railway workers attention. Based on the national conditions of our country, this paper proposes for the first time the adoption of a three-phase three-coil “cross-over” junction transformer to cancel the configuration of the feeder autotransformer and demonstrate its technical and economic advantages. This method has been used in Daqin line electrified railway project.