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Transformer substation grounding grid fault corrosion monitoring method and system

A substation grounding grid, corrosion monitoring technology, applied in fault location, weather resistance/light resistance/corrosion resistance, measurement of electricity and other directions, can solve problems such as theoretical simulation and field tests that have not been carried out

Inactive Publication Date: 2016-06-08
ZHANGQIU POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the impact of the steel structure in the substation on the corrosion diagnosis of the ground grid, no detailed theoretical simulation and field test have been carried out so far.

Method used

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  • Transformer substation grounding grid fault corrosion monitoring method and system
  • Transformer substation grounding grid fault corrosion monitoring method and system
  • Transformer substation grounding grid fault corrosion monitoring method and system

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Embodiment Construction

[0100] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0101] This embodiment provides a substation grounding grid fault corrosion monitoring method, the method includes:

[0102] Obtain the topological structure of the grounding grid and the number of nodes and branches of the substation grounding grid, number the nodes and branches, and select a node of the grounding grid as a common point;

[0103] Establish fault diagnosis equation:

[0...

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Abstract

The invention discloses a transformer substation grounding grid fault corrosion monitoring method and system. The monitoring method can monitor the fault corrosion condition of a transformer substation grounding grid, has certain reliability and accuracy and can reduce error and improve precision of point selection according to a measuring point selection principle and a measuring point selection rule. By means of monitoring on the transformer substation grounding grid, the running safety and stability of the grounding grid are improved, and safety production of an electrical power system is facilitated. Potential safety hazards existing in the grounding grid can be found in time, and normal running of a power supply system is guaranteed. For maintenance of the grounding grid, due to the fact that local breakpoints of the grounding grid can be positioned precisely, damage to the substation environment can be greatly reduced, and meanwhile the labor intensity is reduced.

Description

technical field [0001] The invention relates to the field of substation grounding grids, in particular to a method and system for monitoring fault corrosion of substation grounding grids. Background technique [0002] With the development of modern large power grids in the direction of ultra-high voltage, large capacity and long distance, the requirements for the safety, stability and economic operation of the power system are getting higher and higher. In order to ensure the safe and stable operation of the power grid and improve the reliability of power supply, there must be a Good substation grounding device. [0003] The grounding grid is a hidden facility buried deep underground in the power system. The main technical problems exposed on site are corrosion of the grounding grid, small cross-section of the grounding down-conductor, and poor connection between grounding bodies. These problems have buried hidden dangers for power failures. . Grounding grid corrosion is a...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01N17/00
CPCG01R31/088G01N17/00
Inventor 郭建峰潘广国李江吉刘凤伟李庆江马玉杰李岩孟丽宋振山高成周毅赵志伟石俊民周承山
Owner ZHANGQIU POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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