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A Well Group Grounding Grid

A grounding grid and grounding electrode technology, which is applied in the direction of connecting contact materials, can solve the problems of high ground step voltage, waste of grounding materials, and high grounding resistance, so as to achieve a small coupling effect on the ground, increase the efficiency of land use, and protect the ground The effect of small capacitance

Active Publication Date: 2015-10-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the grounding grids used in power plants and substations at home and abroad all use cross-shaped square or rectangular grids. Due to the horizontal layout of these shapes, not only a lot of grounding materials are wasted, but also the project is huge. Difficult to replace after corrosion
Not only that, because the current ground grid is buried shallow, it also brings problems such as high ground resistance and the resulting high ground step voltage.

Method used

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  • A Well Group Grounding Grid
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 , 2 As shown, a well group grounding grid includes seven grounding electrodes 4 and grounding lead wires 5; among the seven grounding electrodes 4, one of the grounding electrodes 4 is located in the middle, and the remaining six grounding electrodes 4 are located around it; The six surrounding ground electrodes 4 are not directly connected to each other, and are respectively connected to the middle ground electrodes 4 .

[0021] The connection between the ground electrodes 4 is interconnected through the conductor 6 under the shallow soil.

[0022] The six surrounding ground electrodes 4 are evenly distributed around the middle ground electrode 4: the connection line between any two surrounding ground electrodes 4 and the middle ground electrode 4 is at 60°; The distances between the surrounding ground electrodes 4 and the mi...

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Abstract

The invention discloses a well group grounding net which comprises seven grounding electrodes and a grounding lead-up wire, wherein one of the grounding electrodes is arranged in the middle; the other six grounding electrodes are positioned around the grounding electrode; and the six surrounding grounding electrodes are not directly connected with one another, and are connected with the middle grounding electrode, respectively. The grounding net has the advantages of high security, high land utilization rate, convenience in maintenance and replacement and the like.

Description

technical field [0001] The invention relates to a well group grounding grid. Background technique [0002] At present, the grounding grids used in power plants and substations at home and abroad all use cross-shaped square or rectangular grids. Due to the horizontal layout of these shapes, not only a lot of grounding materials are wasted, but also the project is huge. It is very difficult to replace after corrosion. Not only that, because the current ground grid is buried shallowly, it also brings problems such as high ground resistance and the resulting high ground step voltage. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a well group grounding grid, which has the advantages of high safety, high land utilization rate, and easy maintenance and replacement. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [0005] A well group grounding net...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66
Inventor 丁卫东苏文博张青青
Owner STATE GRID CORP OF CHINA