DEVICE FOR TRANSLATION section of the railway, electrified with alternating current 27.5 kW, to DC 25 kV

摘要

The invention relates to devices for translation rail sections electrified at AC 27.5 kV to 25.0 kV DC and can be used to transfer all existing sections iron AC roads.; The object to be solved by the proposed utility model is directed, it is to facilitate the translation rail sections electrified at AC 27.5 kV to 25.0 kV DC.; The technical result is achieved in that the device for translation rail sections electrified at AC 27.5 kV to 25.0 kV direct current, comprising a three-phase switchgear apparatus 110 (220) KV, is connected to a step-down transformer 110 (220) / 27.5 kV, reducing the voltage to 27.5 kV, supplied via the secondary winding of stepdown transformer to the converter AC to DC, converts it into a DC voltage of 25.0 kV, according to the proposed utility model, said output e 25.0 kV DC voltage of positive polarity is supplied with further entered through a smoothing filter and dispenser constant voltage of 25.0 kV to contact network configured to generate an output DC voltage of 25.0 kV, and the output DC voltage of 25.0 kV of negative polarity further introduced through said dispenser constant voltage of 25.0 kV - to the running rail, the inverter AC to DC configured poss zhnosti converting three-phase AC voltage in a six-pulse direct current voltage of 25.0 kV, with small values ​​of the DC voltage ripple, separation of positive and negative polarity of the DC voltage, rectification of higher odd harmonics of the AC voltage, creating a potential difference for the propulsion of electric rolling stock.; Translation, according to the proposed utility model, the existing rail sections electrified at AC 27.5 kV to 25.0 kV DC will simplify translation and increase the capacity of the power supply system, with the power of traction substations DC and AC. 1 yl.