CN203660076U - Lightning protection grounding system with distance between mobile communication base station and transformer being greater than 30 meters - Google Patents
Lightning protection grounding system with distance between mobile communication base station and transformer being greater than 30 meters Download PDFInfo
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- CN203660076U CN203660076U CN201420014703.5U CN201420014703U CN203660076U CN 203660076 U CN203660076 U CN 203660076U CN 201420014703 U CN201420014703 U CN 201420014703U CN 203660076 U CN203660076 U CN 203660076U
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Abstract
本实用新型公开了一种移动通信基站与变压器相距大于30米的防雷接地系统，包括基站变压器和基站变压器接地网；所述基站变压器接地网为等边三角形结构，所述等边三角形接地网的几何中心点与三个顶点通过水平接地体电气连接；等边三角形接地网的三个顶点分别电气连接有沿水平方向向外延伸的辐射形水平接地体，所述辐射形水平接地体的长度为10-20米；在基站变压器高压侧安装有高通流量雷电避雷器，其低压侧安装开关型避雷器。本实用新型优点在于基站变压器地网的辐射形水平接地体可以有效的对雷电流进行散流，并且在采用等量材料的条件下，接地电阻值可以达到最小。
The utility model discloses a lightning protection grounding system with a distance of more than 30 meters between a mobile communication base station and a transformer, which comprises a base station transformer and a base station transformer grounding network; the base station transformer grounding network has an equilateral triangle structure, and the equilateral triangle grounding network The geometric center point and the three vertices are electrically connected through the horizontal grounding body; the three vertices of the equilateral triangle grounding grid are respectively electrically connected to a radial horizontal grounding body extending outward along the horizontal direction, and the length of the radial horizontal grounding body It is 10-20 meters; a high-pass flow lightning arrester is installed on the high-voltage side of the base station transformer, and a switch-type arrester is installed on the low-voltage side. The utility model has the advantages that the radiation-shaped horizontal grounding body of the base station transformer grounding network can effectively diffuse the lightning current, and the grounding resistance value can reach the minimum under the condition of using the same amount of materials.
Description
Technical field
The utility model relates to mobile communication base station supply transformer, especially relates to and is greater than the lightning protection earthing system of 30 meters apart when mobile communication base station and transformer.
Background technology
The mobile communication base station of operator, much build suburb or field at present.In recent years, along with the development of mobile communications industry, mobile communications network scale constantly expands, the scope that mobile communication base station covers also by city, suburb to mountain area, field expands.For ensureing the power supply to mobile communication base station, need special base station transformer to become 380V voltage to power to mobile communication base station 10kV voltage transitions.At present, there is sector-specific base station transformer to establish at the foot of the mountain, be greater than 30 meters at a distance of mobile communication base station, by power transmission line, 380V power supply is drawn and gone up a hill.More severe at these regional thunder and lightning environment, therefore base station transformer is caused the situation of mobile communication base station power failure (or causing base station outage) in the accident of mobile communication base station, to occupy suitable ratio by broken by lightning.
Summary of the invention
The utility model object is to provide a kind of mobile communication base station and transformer to be greater than the lightning protection earthing system of 30 meters apart.
For achieving the above object, the utility model is taked following technical proposals:
Mobile communication base station described in the utility model and transformer are greater than the lightning protection earthing system of 30 meters apart, comprise base station transformer and base station transformer grounding net; Described base station transformer grounding net is equilateral triangle structure, and the geometric center point of described equilateral triangle ground network and three summits are electrically connected by horizontal grounding objects; Three summits of equilateral triangle ground network have been electrically connected respectively the outward extending Radiation horizontal grounding objects of along continuous straight runs, and the length of described Radiation horizontal grounding objects is 10-20 rice; At base station high voltage side of transformer, high pass flow thunder and lightning lightning arrester is installed, its low-pressure side is installed switching mode lightning arrester.
The utility model advantage is that the Radiation horizontal grounding objects of base station transformer earth mat can effectively carry out diffusing to lightning current, and is adopting under the condition of equivalent material, and it is minimum that grounding resistance can reach.Base station high voltage side of transformer is installed high pass flow thunder and lightning lightning arrester, utilizes the characteristic with high pass flow, low residual voltage (8/20 μ S 20kA residual voltage is less than 50kV), in the time of thunderbolt, is not easy to damage; Base station step down side is installed switching mode lightning arrester, is not easy damage, long service life while therefore work.
Brief description of the drawings
Fig. 1 is the electric hookup of base station described in the utility model transformer.
Fig. 2 is the syndeton schematic diagram of base station described in the utility model transformer grounding net.
Embodiment
As shown in Figure 1, 2, mobile communication base station described in the utility model and transformer are greater than the lightning protection earthing system of 30 meters apart, comprise base station transformer 1 and base station transformer grounding net; Described base station transformer grounding net is that the length of side is not less than the equilateral triangle structure of three meters, and the geometric center point 3 of described equilateral triangle ground network 2 and three summits 4,5,6 are electrically connected by horizontal grounding objects; Three summits 4,5,6 of equilateral triangle ground network 2 are electrically connected respectively the outward extending Radiation horizontal grounding objects 7,8,9 of along continuous straight runs, and the length of described Radiation horizontal grounding objects 7,8,9 is selected between 10-20 rice; High pass flow thunder and lightning lightning arrester 10 is installed in base station transformer 1 high-pressure side, and its low-pressure side is provided with switching mode lightning arrester 11.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014703.5U CN203660076U (en) | 2014-01-10 | 2014-01-10 | Lightning protection grounding system with distance between mobile communication base station and transformer being greater than 30 meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014703.5U CN203660076U (en) | 2014-01-10 | 2014-01-10 | Lightning protection grounding system with distance between mobile communication base station and transformer being greater than 30 meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660076U true CN203660076U (en) | 2014-06-18 |
Family
ID=50926428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014703.5U Expired - Lifetime CN203660076U (en) | 2014-01-10 | 2014-01-10 | Lightning protection grounding system with distance between mobile communication base station and transformer being greater than 30 meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269663A (en) * | 2014-09-26 | 2015-01-07 | 中讯邮电咨询设计院有限公司 | Grounding method for small LTE distribution base station in different lightning strike environments |
| CN112563769A (en) * | 2020-12-03 | 2021-03-26 | 上海宝冶集团有限公司 | Lightning protection grounding method for wind generating set in high resistivity area |
-
2014
- 2014-01-10 CN CN201420014703.5U patent/CN203660076U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269663A (en) * | 2014-09-26 | 2015-01-07 | 中讯邮电咨询设计院有限公司 | Grounding method for small LTE distribution base station in different lightning strike environments |
| CN104269663B (en) * | 2014-09-26 | 2016-05-18 | 中讯邮电咨询设计院有限公司 | The earthing method of small-sized LTE distributed base station under difference thunderbolt environment |
| CN112563769A (en) * | 2020-12-03 | 2021-03-26 | 上海宝冶集团有限公司 | Lightning protection grounding method for wind generating set in high resistivity area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |