Low voltage leakage monitoring method of power distribution platform region

Abstract

The invention discloses a low voltage leakage monitoring method of a power distribution platform region. The method comprises the following steps that a wire outlet side of a low voltage side leakage protector of the power distribution platform region (1) is provided with a zero sequence current transformer which can sample leakage current, and a sampling result is transmitted to a background system through a concentrator remote terminal wireless communication (8); a setting leakage tripping signal, a leakage non-tripping signal, a serious leakage signal, a power failure signal and the like are set by a leakage monitoring device according to a platform region condition and a leakage protection using installation specification requirement, and a background monitoring person can know the platform region leakage current condition and a platform region operation condition in time. The leakage monitoring device is composed of a zero sequence current transformer (3), a concentrator remote terminal (2) and the background system (7), wherein a wire of a low voltage loading side (6) passes through the zero sequence current transformer; an outlet wire of the zero sequence current transformer is connected with the concentrator remote terminal, and the concentrator remote terminal is connected with the background system through wireless communication. The low voltage leakage monitoring method provided by the invention is suitable for monitoring low voltage leakage of the power distribution platform region.

Description

[0001] technical field [0002] The invention relates to a low-voltage leakage monitoring method in a power distribution station area, belonging to the technical field of power supply and distribution monitoring. Background technique [0003] At present, the line equipment in the distribution station area often suffers from low-voltage leakage due to aging electrical equipment and tree obstacles on the line. After the low-voltage leakage, if the current is large, it will affect personal safety. In order to prevent personal electric shock, people install a leakage protector on the low-voltage side of the distribution station area. When the leakage current on the line generates a value that is harmful to the human body, the leakage protector operates to disconnect the power supply. After the event, the maintenance personnel investigated and dealt with the fault, and the power supply was restored after repair. In this case, the fault can only be judged by the leakage prote...

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Problems solved by technology

[0006]The purpose of the present invention is to disclose a power distribution Low-voltage leakage monitoring method and device in station area

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