Subsection split phase automatic-passing system of electric railway and split phase automatic-passing method thereof

Abstract

The invention discloses a subsection split phase automatic-passing system of an electric railway and a split phase automatic-passing method of the subsection split phase automatic-passing system of the electric railway. According to the subsection split phase automatic-passing system of the electric railway, a first catenary and a second catenary are connected with a neutral section through a first electric subsection and a second electric subsection respectively, a first current transformer is connected to the portion, close to the first electric subsection, of the first catenary in series, a second current transformer and a first normally-open switch are connected in series, and then are connected to the first electric subsection in parallel, and a third current transformer and a second normally-closed switch are connected in series, and then are connected to the second electric subsection in parallel; a first voltage transformer and a second voltage transformer are connected with the tail end of the first catenary and the tail end of the second catenary respectively; a first pantograph detector is installed on a supporting column of the first current transformer, a second pantograph detector is installed on the first electric subsection, and a third pantograph detector is installed on the second electric subsection; the first current transformer, the second current transformer, the third current transformer, the first pantograph detector, the second pantograph detector, the third pantograph detector, the first voltage transformer, the second voltage transformer and the first normally-open switch are connected with a control unit. The subsection split phase automatic-passing system of the electric railway is simple in structure, small in investment and convenient to implement, subsection split phase automatic-passing operation of the electric railway can be achieved completely and more reliably, and the lockout function is achieved when the subsection split phase automatic-passing system is abnormal.

Description

technical field [0001] The invention relates to an automatic phase separation system and an automatic phase separation method for electrified railway divisions. Background technique [0002] my country's electrified railway generally adopts single-phase power frequency AC system. In order to make the three-phase load of the power system as balanced as possible, the electrified railway often adopts the scheme of alternating phase sequence and phase-separated partition power supply. The adjacent power supply intervals at the phase-separation partition are divided by air or insulators to form insulating electrical phase separation, referred to as electrical phase separation or phase separation. [0003] In order to prevent electric locomotives from burning out catenary suspension components due to arcing through phase separation, and even causing accidents such as phase-to-phase short circuit, when the train is over-phase-splitting, the driver needs a series of manual operation...

AI Technical Summary

Problems solved by technology

If the electric train does not receive current before the phase separation, but needs to receive current when it reaches the neutral section. At this time, the two switches connected to the neutral section are in the off state, and the current transformer cannot detect the train passing signal. As a result, the train cannot receive current when passing through the entire neutral section, resulting in power supply blind spots, reducing train speed and traffic capacity

At the same time, the application still requires the switching action of two switches when the train in the sub-area automatically passes the phase, and the operation is relatively complicated.

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