An Overhead Line Leakage Addresser

Abstract

The invention discloses an overhead network electric leakage addressing instrument comprising a pincer-like electric leakage test device and a power frequency inverter, wherein the pincer-like electric leakage test device comprises a device body and a pincer-like part, the pincer-like part comprise two tong heads pivoted on the device body, the two tong heads form a jaw which can be opened and closed, an iron core is arranged in each tong head, the iron cores form a closed loop together with the closing of the jaw, and a secondary winding is arranged on the iron cores; and a signal amplifying circuit, a sound-light alarm circuit and a power supply are arranged in an accommodating cavity of the device body, the input end of the signal amplifying circuit is connected with a coil of the secondary winding, the output end of the signal amplifying circuit is connected with the sound-light alarm circuit, and the power supply is connected with the signal amplifying circuit and the sound-light alarm circuit respectively. By use of the device provided by the invention, an electric leakage position can be rapidly and accurately diagnosed, and quick response for electric leakage maintenance of an electric transmission line is greatly improved; and the device is convenient to carry and simple to operate, can be reused for multiple times, and avoids manual replacement of an overhead network fault indicator, and meanwhile, the use cost is reduced, so that the device is convenient for promotion and application.

Description

technical field [0001] The invention relates to the field of electric power transmission, in particular to a reusable overhead line leakage addresser which is easy to operate and can quickly check the leakage position of transmission lines. Background technique [0002] Among the existing power transmission lines, especially the 0.4KV and 10KV transmission lines, there are often large leakage phenomena caused by the transmission line being in contact with tree branches or other grounding conductors, transformer failures, lightning arrester damage, and porcelain bottle aging. Electrician inspection and repair is required. The existing detection method is to install an overhead line fault indicator (such as Minsai XGDL-JDG broken line fault indicator) at a certain distance on the transmission line, and indicate the leakage area through electromagnetic induction. However, this method cannot accurately determine the specific location of the leakage, and requires maintenance wor...

AI Technical Summary

Problems solved by technology

However, this method cannot accurately determine the specific location of the leakage, and requires maintenance workers to gradually check along the line. This is especially difficult for areas with long lines or passing through mountains and forests, which increases the work difficulty of maintenance workers and reduces work efficiency; At the same time, the overhead line fault indicator is set outdoors for many years and is of a closed design. The battery can only be replaced as a whole when it is exhausted in less than half a year, and it cannot be reused. At the same time, it increases the cost of purchasing the indicator and the difficulty of manual replacement; Moreover, the existing overhead line fault indicator needs nearly 6 hours to return to the normal indication after the line returns to normal, and the response is slow

Furthermore, if there is another leakage within 6 hours of lightning weather and cannot be indicated, it cannot meet the current fast and efficient power maintenance needs

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