Subway rectification three-phase boost power supply

Abstract

The invention discloses a subway rectification three-phase boost power supply. The subway rectification three-phase boost power supply comprises a power box and a case panel, one side of the top of the case panel is fixedly connected with a power output mechanism, a three-phase four-wire power input mechanism is fixedly connected to one side of the top of the case panel and located on the front face of the power output mechanism. The power output mechanism comprises a binding post a, a binding post b, a binding post c and a binding post n, the three-phase four-wire power input mechanism comprises a binding post A, a binding post B, a binding post C and a binding post N, and a touch screen is fixedly connected to the middle portion of the top of the case panel. According to the subway rectification three-phase boost power supply, the power box has the characteristics is convenient to use and maintain, excellent in performance, safe and reliable to use, attractive in appearance structure, firm, durable, convenient to move and the like, a manual control mode or an automatic control mode can be freely switched, and actual use requirements are met.

Description

technical field [0001] The invention relates to the technical field of rectified three-phase boosted power supply, in particular to a subway rectified three-phase boosted power supply. Background technique [0002] "Rectifier circuit" is a circuit that converts AC power into DC power. Most rectifier circuits are composed of transformers, rectifier main circuits and filters. It has been widely used. After the 1970s, the main circuit is mostly composed of silicon rectifier diodes and thyristors. The filter is connected between the main circuit and the load to filter out the AC component in the pulsating DC voltage. Whether the transformer is set or not depends on the specific situation. The function of the transformer is to realize the matching between the AC input voltage and the DC output voltage and the electrical isolation between the AC power grid and the rectifier circuit. To pulsating direct current, this is the rectification process of alternating current, the rectifi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a subway rectifier three-phase boost power supply, which solves the problem that the manual control mode or the automatic control mode cannot be switched freely, and at the same time, there is no overcurrent and overvoltage protection function inside.

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