Measuring device for grounding resistance

A measuring device and grounding resistance technology, which is applied in the field of new measuring grounding resistance system, can solve the problems of only focusing on power frequency grounding resistance measurement and rarely measuring the impact grounding resistance of grounding devices, so as to avoid manual statistics, avoid randomness, Check the effect of accurate data

Inactive Publication Date: 2015-07-01
孙巍巍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many accidents caused by lightning strikes on transmission line towers, but the current measurement of grounding device resistance generally only focuses on the measurement of power frequency grounding resistance, and rarely measures the impact grounding resistance of grounding devices

Method used

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  • Measuring device for grounding resistance

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Experimental program
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Effect test

Embodiment Construction

[0020] Discuss the specific implementation mode below in conjunction with accompanying drawing and embodiment:

[0021] The grounding measurement device is composed of a generating device (1), a receiving device (4), a control device (2), an analysis and processing device (5), a display device (7), a communication device (3) and the like. The generating device (1) is connected to the control device (2), the receiving device (4) is connected to the analysis and processing device (5), the grounding device is connected to the grounding point wire to be tested, and the communication device (3) The control device (2) is connected, and the analysis and processing device (5) is connected to the display device (6).

[0022] The generating device (1) generates impulse current and injects it into the ground loop through the pulse power technology.

[0023] The receiving device (4) collects voltage and current signals in the ground loop through an integrated filter and A / D conversion. ...

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Abstract

The invention relates to a measuring device for multi-point grounding resistance. The device comprises a generating device, a receiving device, a control device, an analyzing processing device, a display device and a communication device, wherein the generating device is connected with the control device; the receiving device is connected with the analyzing processing device; the grounding device is connected with a grounding point to be measured through a conductor; the communication device is connected with the control device; the analyzing processing device is connected with the display device. According to the measuring device, impact current is charged to a grounding loop and acquired and analyzed; the potential risk of grounding of the grounding point to be measured can be detected without excavating to damage the working environment; the impact grounding resistance can be accurately and reliably measured, and the updating and other functions can be achieved.

Description

technical field [0001] The invention relates to the field of electric power equipment, in particular to a novel system for measuring grounding resistance. Background technique [0002] Lightning is a special atmospheric phenomenon caused by the discharge of charged clouds in the air. Lightning is an important cause of damage to electronic equipment, which threatens the safe and stable operation of electronic information systems in various fields such as construction, railways, civil aviation, communications, industrial control, and military. Lightning protection is one of the measures to solve the above problems. In the current field of lightning protection, the setting of grounding devices has become one of the most critical links. It not only involves lightning discharge, but is more related to personal safety, equipment safety and system security. For normal operation, the current various technical specifications have express provisions on the specific settings of the gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/20
Inventor 孙巍巍
Owner 孙巍巍
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