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DC traction power supply system

DC traction power supply device for urban rail transit consists of epoxy cast dry-type traction rectifier transformer and traction rectifier. The dry-type traction rectifier transformer adopts the casting molding technology of winding integration to enhance the ability to anti-short circuit. The winding intersegment is filled with glass fiber mat so as to enhance the electrical performance, reduce the partial discharge value and prolong the transformer's lifespan. The traction rectifier can set the internal short circuit, over power voltage and temperature protection, and set the alarm indicator lamp of diode fault, diode fault tripping and the temperature tripping of rectifier. PLC chosen as the intelligent data acquisition device has the function of programming and can upload the information of temperature analog quantity signals, fault alarm and fault tripping through communication interfaces which adopt standard interfaces.

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