Resistance reduction analysis and measure system applied to transformer station lightning-proof grounding system

Abstract

The invention belongs to the technical field of lightning-proof grounding of transformer station engineering, and particularly relates to a resistance reduction analysis and measurement system applied to a transformer station lightning-proof grounding system. The invention provides a resistance reduction analysis and measurement system applied to a transformer station lightning-proof grounding system, and the system can effectively solve the technical problem of grounding. The system includes a resistance reduction database, a resistance reduction problem application part and a ground resistance on-line monitoring part; the resistance reduction problem application part collects field soil environment data, extracts the resistance reduction database, determines a structure of the structure of layering arrangement and soil texture environmental data which are related with the ground resistance, and calculates the geological environment of the grounding system; a solution is selected in the database, calculation of the grounding system is completed, and the mode and the structure of grounding of a transformer station are determined; and the calculation flow of the grounding system is as follow: soil resistivity and grounding area data are collected, and thermostabilization examination of a grounding device is performed.

Description

technical field [0001] The invention belongs to the technical field of lightning protection and grounding of substation engineering, and in particular relates to a resistance reduction analysis and measure system applied to a lightning protection and grounding system of a substation. Background technique [0002] A good grounding system is a reliable guarantee for the safe and stable operation of power grid equipment and systems. [0003] At present, there are the following problems and challenges in the lightning protection work of substation grounding: 1. The geographical environment of substation grounding is relatively complex, with many gravel, rocky land, and saline-alkali land, which reflect high soil resistivity, uneven soil resistivity, and prominent corrosion to varying degrees. 2. Seasonal changes, temperature and humidity changes, etc. have uncertain effects on soil resistivity; 3. The level of experience of grounding technicians is limited, which brings a very s...

AI Technical Summary

Problems solved by technology

[0003] At present, there are the following problems and challenges in the lightning protection work of substation grounding: 1. The geographical environment of substation grounding is relatively complex, with many gravel, rocky land, and saline-alkali land, which reflect high soil resistivity, uneven soil resistivity, and prominent corrosion to varying degrees. 2. Seasonal changes, temperature and humidity changes, etc. have uncertain effects on soil resistivity; 3. The level of experience of grounding technicians is limited, which brings a very severe test to the work of lightning protection grounding and resistance reduction in substations; 4. Design Personnel excessively meet the requirements of grounding and lightning protection technical specifications from a technical point of view, but fail to comprehensively create the value of grounding and lightning protection work from economic and social benefits

[0004] In summary, regardless of environmental factors or human factors, it has brought restrictions on the technical and economic development of substation grounding and lightning protection, and may especially bring potential safety hazards to substations.

Images