Circuit layout and error correction system used for measuring grounding impedance

A circuit layout and error correction technology, applied in the direction of grounding resistance measurement, etc., can solve the problems of high labor intensity, high labor intensity, and high risk, and achieve high labor intensity, low labor intensity, and good safety. Effect

Inactive Publication Date: 2015-09-16
STATE GRID CORP OF CHINA +2
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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 det

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  • Circuit layout and error correction system used for measuring grounding impedance

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0029] According to an embodiment of the present invention, such as figure 1 As shown, a line layout and error correction system and method for grounding impedance measurement are provided, especially suitable for large-scale grounding grid grounding resistance measurement systems.

[0030] The present invention aims to solve the problems of current line and voltage line arrangement and automatic verification of detection results when using three-point method to measure large-scale grounding grids, and provides a grounding grid grounding resistance detection system with flexible wiring and automatic result correction. The system is compact in structure, perfect in m...

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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...

Claims

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Application Information

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IPC IPC(8): G01R27/20
Inventor 胡春江温定筠张广东孙亚明吴玉硕张凯江峰杨志华
Owner STATE GRID CORP OF CHINA
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