Abstract：Abstract ： Research purposes ： Through the study of electrified railway traction substation power rapid switching technology to deal witli the electrified railway traction substation main equipment maintenance or main transformer switch operation，which has problem of leading to the power failure of tlie whole station，low efficiency and over reliance on the maintenance 11 Window". This paper systematically introduces the basic principle of fast switching power supply technology. Based on the practical application of the main electrical connection of the railway traction substation，the paper studies the engineering application of the fast switching power supply device in the equipment maintenance and rotation working of the traction substation，analyzes the results of various programs，in order to promote the accumulation of experience. Research conclusions ：( 1) Power rapid switching technology can realize the seamless switching of the power supply of the traction substation，and can keep the uninterrupted power supply in the process of the main transformer reversing， which avoids the power failure of the whole station. (2) Power rapid switching technology ensures the reliability of traction power supply，and improves the work efficiency of the traction substation main equipment. (3) Power rapid switching technology can provide series switching and parallel switching mode， which makes the maintenance work arrangement of the traction substation main electrical equipment more flexible，and is not limited by the time limit for the maintenance “ Window" . (4) With the improvement of tlie hardware performance and the improvement of tlie software function ; this technology can be widely used in the operation of tlie electrified railway traction substation.
2017, Vol. 34 
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