Grounding resistance state evaluation and on-line early-warning cloud monitoring system

Abstract

The invention provides a grounding resistance state evaluation and on-line early-warning cloud monitoring system. The system comprises a plurality of detection terminals; each detection terminal comprises a box body; each box body is mounted on a cross arm of a tower; a solar cell panel is arranged at the upper part of each box body; a wire outlet is formed in the bottom of each box body; a signalprocessing unit is arranged in each box body and penetrates through the wire outlet through a signal wire to be connected with a signal acquisition unit; each signal processing unit is connected withan MCU; each MCU is connected with a power conversion module, a signal generation unit, a communication module, a clock module, a positioning module and a storage module; each power conversion moduleis connected with a solar storage battery and a standby battery; and each signal generation unit is connected with each signal acquisition unit. According to the system, grounding resistance in eachregion is monitored in real time; distance limitation is avoided; system networking is convenient; data of multiple monitoring points can be monitored simultaneously at different positions; and once an exception occurs, a regional leader can be timely notified for overhauling.

Description

technical field [0001] The invention relates to the technical field of ground resistance detection, in particular to a ground resistance state evaluation and online early warning cloud monitoring system. Background technique [0002] In recent years, lightning tripping has always been the first of all kinds of faults. Lightning disaster has become an important factor affecting the safe operation of transmission lines, and after the line is struck by lightning, the intrusive wave that enters the substation along the transmission line threatens the electrical in the substation. Equipment is often the main factor causing substation accidents, especially in areas with strong lightning activities, high soil resistivity, and complex terrain, the accident rate of distribution equipment is higher, causing huge economic losses. [0003] And the lightning accidents of the line account for a large proportion in the total lightning accidents of the power system. Moreover, after the lin...

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Problems solved by technology

[0004] In view of the large number of transmission system towers in the region, the manual measurement work is very heavy, and the technical problems that manual errors are easily introduced during manual measurement, the present invention proposes a grounding resistance status evaluation and online early warning cloud monitoring system

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