CN203707347U

CN203707347U - Substation grounding grid

Info

Publication number: CN203707347U
Application number: CN201320769312.XU
Authority: CN
Inventors: 张力淼; 牛宇干; 殷红德
Original assignee: State Grid Corp of China SGCC; Pingdingshan Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Pingdingshan Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2013-11-30
Filing date: 2013-11-30
Publication date: 2014-07-09
Anticipated expiration: 2023-11-30

Abstract

The utility model discloses a substation grounding grid. The substation grounding grid comprises a grounding grid body composed of a grounding wire, and the grounding wire is a flexible graphite lead; the grounding grid body is a spirally distributed grounding grid; and the grounding grid body is a grounding grid distributed in a concentric circles grid manner. The flexible graphite lead adopted by the substation grounding grid has a good conductivity and can be tightly combined with the soil when grounded, the mode that the flexible graphite lead is grounded in a spiral distribution manner is adopted, so that grounding interfaces can be reduced, and difficulty of maintenance can be reduced; the flexible graphite lead is good in corrosion resistance, and lifetime of the grounding grid can be prolonged by more than three times; and the substation grounding grid is simple in structure and easy to operate, practical value of the substation grounding grid is maximally developed under the condition of the same resources, and the substation grounding grid is worth of being popularized and applied.

Description

A kind of grounding net of transformer substation

Technical field

The utility model belongs to transformer station and arranges articles for use technical field, is specifically related to a kind of grounding net of transformer substation.

Background technology

Now in the placement process of grounding net of transformer substation, the steel that adopt are arranged more, the application of a large amount of steel, not only increase spending, and because it is arranged on underground throughout the year, easily corrosion, after its corrosion, have a strong impact on the safety of transformer station, and because steel contact area is little, if there is problem in grounding net of transformer substation, consequence is hardly imaginable, the lighter causes transformer station's partial failure, severe one can cause the paralysis of whole transformer station, directly cause power-off, therefore the improvement of substation ground network is seemed to very urgent, in CN 202651664 U, a kind of grounding net of transformer substation is disclosed, comprise latticed ground network main body, it is interconnected to constitute by grid bar, described grid bar unequal-interval is arranged.The utility model provides a kind of unequal-interval grounding net of transformer substation; Although it has solved the problem of ground network electromotive force, it not yet solves metallic contact corrosion and the little shortcoming of contact area, therefore need a kind of can enlarge active surface and the little grounding net of transformer substation of corrosivity.

Utility model content

The purpose of this utility model is to provide a kind of grounding net of transformer substation of simple in structure, easy and simple to handle and long service life.

The technical scheme that adopted is to achieve these goals: a kind of grounding net of transformer substation, comprise ground network body, and described ground network body is made up of earth connection, and described earth connection is flexible graphite conducting wire.

Described ground network body is Spiral distribution ground network.

Described ground network body is concentric circles net distribution ground network.

When adopting flexible graphite conducting wire not only to possess good electric conductivity but also its ground connection, the utility model can be combined closely with soil, adopt the mode of flexible graphite conducting wire ground connection in spiral distribution, make it can reduce ground interface, reduce the difficulty of maintenance, and flexible graphite conducting wire corrosion resistance is good, make ground network life more than 3 times, the utility model is simple in structure, easy and simple to handle, in equal resources supplIes, county has brought into play its practical value to greatest extent, is worthy to be popularized and applies.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the another kind of structural representation of the utility model.

Embodiment

Embodiment one: as shown in Figure 1: a kind of grounding net of transformer substation, comprise ground network body 1, described ground network body 1 is made up of earth connection, and described earth connection is flexible graphite conducting wire.

Described ground network body 1 is Spiral distribution ground network.

Embodiment two: as shown in Figure 2: not being of itself and embodiment one: ground network body 1 is concentric circles net distribution ground network.

The utility model adopts the ground network of concentric circles net distribution, make to have increased the contact area with soil, and it can reduce ground interface, reduce the difficulty of maintenance, and flexible graphite conducting wire corrosion resistance is good, make ground network life more than 3 times, the utility model is simple in structure, easy and simple to handle, in equal resources supplIes, county has brought into play its practical value to greatest extent, is worthy to be popularized and applies.

Claims

1. a grounding net of transformer substation, comprises ground network body, it is characterized in that: described ground network body is made up of earth connection, and described earth connection is flexible graphite conducting wire.

2. grounding net of transformer substation according to claim 1, is characterized in that: described ground network body is Spiral distribution ground network.

3. grounding net of transformer substation according to claim 1, is characterized in that: described ground network body is concentric circles net distribution ground network.