Protection scheme for China high-speed railway
Developments in Power System Protection（2010）
摘要
Start from Beijing-Tianjin intercity dedicated passenger line, a new 2 ?? 25 kV autotransformer feeding is applied to China high-speed railway. The traction power supply system is different from China common-speed electrified railway. In this paper, the traction power supply system, the course of fault isolation and supply recovery are introduced. According to normal operation and emergency operation, the protection configuration and setting of feeder relay at traction substation, autotransformer station and sectioning post are discussed. The protection scheme introduced in this paper has been put into use in several China high-speed railways.
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关键词
high-speed railway,traction power supply system,feeder protection,china high-speed railway protection scheme,autotransformers,protection scheme,passenger line,feeder relay,traction substation,dedicated passenger line,traction power supplies,power supply quality,railway electrification,fault isolation,fault location,beijing-tianjin intercity,autotransformer feeding station,voltage 25 kv,common-speed electrified railway
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