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Substation ground protection device

A grounding protection and substation technology, which is applied in the direction of emergency protection circuit devices, electrical components, connecting contact materials, etc., can solve the problems of substandard service life and poor grounding effect of the grounding protection net, and achieve good grounding effect and tightness High, large contact area effect

Active Publication Date: 2018-11-09
HENAN RUIHENG ELECTRICITY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an automatic substation grounding protection device in order to solve the problems in the prior art that the service life of the grounding protection network is not up to standard and the grounding effect is poor.

Method used

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  • Substation ground protection device
  • Substation ground protection device

Examples

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Embodiment 1

[0019] Embodiment 1, design a kind of substation ground protection device, such as Figures 1 to 4 , including a grounding profile 1 that forms a meshed grounding network with latitude and longitude lines. There are through holes 3 in the grounding profile 1 to connect the secondary grounding pipeline. The surface of the grounding profile 1 is provided with protrusions and concave edges, and the protrusions and The transition between concave ribs is smooth.

[0020] The protection device is also connected with a lightning protection mechanism. The lightning protection mechanism includes a certain number of drainage rods 2 made of steel bars. Extend to the surface of the ground grid. An inclination angle of 60-150° is set between the bottom edge and the upper edge of the "L" shape, and in this embodiment, the inclination angle is a right angle.

[0021] The bottom of the drainage rod 2 is also provided with an extension rod 4 extending downwards to expand the grounding area o...

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Abstract

The invention relates to a grounding protection device of a substation, and aims at solving the problems that the service lifetime of a grounding protection network is not up to standard and the grounding effect is poor in the prior art. The grounding protection device comprises grounding profiles which are distributed along the latitude and longitude to form a mesh grounding network; through holes are arranged in the grounding profiles to connect secondary grounding pipelines; and bumps and concave edges are arranged on the surfaces of the grounding profiles and are in smooth transition. The grounding protection device has the beneficial effects that: (1) on one hand, large contact area is ensured by the bumps and the concave edges in smooth transition and the grounding effect is good, and on the other hand, stress concentration is avoided by the relatively smooth surface to prolong the service lifetime; (2) the compactness of surrounding soil during embedding can be ensured by the design of the grounding network to reduce the corrosion rate; and (3) the grounding effect is ensured through bipolar grounding and the grounding protection device still has a relatively secure grounding effect after being corroded by the soil for a long period of time.

Description

technical field [0001] The invention relates to a substation grounding protection device. Background technique [0002] The grounding network of the substation is connected to the grounding wire of the high and low voltage electrical equipment of the whole station, the grounding of the low voltage power system, the grounding of cable shielding, the grounding of communication, computer monitoring system equipment, and some temporary grounding during substation maintenance and overhaul. The service life of electrical equipment in substations is generally required to be 30 years. Considering that the grounding grid is buried in the ground, it is quite difficult to replace it. The service life of the grounding grid cannot be lower than the life of the electrical equipment, and it is considered to be 40 to 50 years. In other words, even if the equipment on the ground is replaced, the ground grid is still safe and reliable, and can continue to operate. Therefore, when selecting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66H02H7/22
CPCH01R4/66H02H7/22
Inventor 冯久航董琬北逯久鑫宋正祥
Owner HENAN RUIHENG ELECTRICITY CO LTD
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