Circuit layout and error correction system used for measuring grounding impedance

Abstract

The invention discloses a circuit layout and error correction system used for measuring grounding impedance and a method. The system comprises an electrode and grounding network geographical coordinate acquisition module, a measurement model generation and applicability analysis module and a measurement result automatic correction module, wherein the electrode and grounding network geographical coordinate acquisition module, the measurement model generation and applicability analysis module and the measurement result automatic correction module are connected in turn. The circuit layout and error correction system used for measuring grounding impedance and the method, which are provided by the invention, can overcome the defects of large labor intensity, large error, poor safety and the like in the prior art, and have the advantages of small labor intensity, small error and good safety.

Description

technical field [0001] The invention relates to the field of power system transformation, in particular to a line layout and error correction system for ground impedance measurement. Background technique [0002] With the continuous operation of 750kV and 1000kV UHV substations and lines in my country's power system, the grounding short-circuit current of the system is increasing. In such large-scale substations and power plants, ensure that the grounding resistance of the grounding device drops to the specified value for design. It is of great significance to ensure the safe operation of equipment and personal safety. The grounding resistance of such large-scale substations and power plants must be measured after the completion of the project; the grounding device in normal operation must also test its grounding resistance according to the period specified in the regulations, evaluate the status of the grounding grid, and ensure the safety of equipment and personnel in the s...

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Problems solved by technology

[0005] At present, the above-mentioned detection methods are labor-intensive, low-efficiency, many error links are introduced, and the risk is high. It is difficult to realize scientific management of detection data.

[0006] In the process of realizing the present invention, the inventors found that at least there are defects such as high manual labor intensity, large errors and poor safety in the prior art

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