CN208141935U - 220kV air-spaced type metal oxide arrester - Google Patents
220kV air-spaced type metal oxide arrester Download PDFInfo
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- CN208141935U CN208141935U CN201820637075.4U CN201820637075U CN208141935U CN 208141935 U CN208141935 U CN 208141935U CN 201820637075 U CN201820637075 U CN 201820637075U CN 208141935 U CN208141935 U CN 208141935U
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Abstract
The utility model discloses a kind of 220kV air-spaced type metal oxide arrester, including lightning arrester body, lightning arrester body top connection gold utensil is won in succession, and lower part connects discharging gap ring；Lightning arrester body is composed in series by two section unit of an arrester, is equipped with single-column resistor disc column inside every section unit of an arrester, and outside is cased with silastic material, by being bolted between unit of an arrester.Due to being cased with silastic material outside unit of an arrester, so that the arrester is small in size, it is light-weight; anti-aging property is good, gradation for surface pollution is high, and tensile strength is high, and creepage distance is big; it can be mounted directly on steel tower, play a very good protection to transmission line of electricity and steel tower；Simultaneously as unit of an arrester lower part is connected with discharging gap ring, it is failure to actuate under continuous running voltage to leakage conductor; in overvoltage transmission line of lightning strike conducting wire, insulator chain and shaft tower; discharging gap ring electric discharge, leakage conductor movement, plays a protective role to transmission line of electricity.
Description
Technical field
The utility model belongs to arrester technical field, and in particular to one kind can be suitably used for 2000 meters of height above sea level or less transmission of electricity works
The 220kV air-spaced type metal oxide arrester of journey.
Background technique
Currently, project of the State Grid Corporation of China in terms of work transmission line also exists with the high speed development of national economy
It increases significantly.Lightning stroke is the main harm of transmission line of electricity, and installing leakage conductor additional is to reduce transmission line caused by lightning strike accident, improve confession
Electric system reliability, a kind of effective means for further decreasing operating cost.Air-spaced type arrester has small in size, weight
The advantages that amount is light, and anti-aging property is good, gradation for surface pollution is high, and tensile strength is high, easy for installation, can be mounted directly on steel tower,
It plays a very good protection to transmission line of electricity and steel tower.It is applied more in 220kV leakage conductor at home power transmission engineering
Add extensively, therefore, it is necessary to study the material structure of the model leakage conductor, electric property, mechanical performance and long-term energetically
Operational reliability.
Summary of the invention
The purpose of the utility model is to provide between a kind of 220kV air that can be suitably used for 2000 meters of height above sea level or less power transmission engineerings
It is electrical to arrester product to meet work transmission line to fill up the blank of existing arrester for gap type metal oxide arrester
Demand in terms of performance, mechanical performance and longtime running reliability.
To achieve the above object, the technical solution adopted in the utility model is：220kV air-spaced type metal oxide is kept away
Thunder device includes lightning arrester body, and lightning arrester body top connection gold utensil is won in succession, and lower part connects discharging gap ring；Lightning arrester body by
Two section unit of an arrester are composed in series, and single-column resistor disc column is equipped with inside every section unit of an arrester, and outside is cased with silastic material,
By being bolted between unit of an arrester.
Due to being cased with silastic material outside unit of an arrester, so that the arrester is small in size, light-weight, anti-aging property
Good, gradation for surface pollution height, tensile strength is high, and creepage distance is big, can be mounted directly on steel tower, plays to transmission line of electricity and steel tower
Good protective effect；Simultaneously as unit of an arrester lower part is connected with discharging gap ring, to leakage conductor in continuous service
It is failure to actuate under voltage, in overvoltage transmission line of lightning strike conducting wire, insulator chain and shaft tower, discharging gap ring electric discharge, route is kept away
The movement of thunder device, plays a protective role to transmission line of electricity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model lightning arrester body element；
Fig. 3 is the structural schematic diagram of the utility model discharging gap ring；
Fig. 4 is the top view of Fig. 3.
Specific embodiment
As shown, the utility model includes air-gap metal Oxide Arrester, and total high 2385mm, gross weight
74kg.Unit of an arrester height 1879mm, unit of an arrester top connection gold utensil win 1 in succession, unit of an arrester top connection gold utensil
It wins in succession for connecting iron tower of power transmission line cross-arm；Lightning arrester body is composed in series by two section unit of an arrester 2.Every section arrester
Single-column resistor disc column is equipped with inside body member 2, outside is cased with silastic material 7.Resistor disc column is divided longitudinally into 3 groups, every group by
Multiple resistor discs 5 and aluminium electrode 8 are in series, and every group is made of 9-10 sheet resistance piece 5.7 gamp of silastic material, 4 outer diameter φ
210mm, internal diameter φ 81mm, quantity 11；6 outer diameter φ of umbellule 174 mm, internal diameter φ 81mm, quantity 10.Arrester single-unit is climbed
Electrical distance is not less than 2700mm.Discharging gap ring 3 is fixed on 2 lower part of unit of an arrester, discharging gap ring 3 by oval aluminum pipe and
Long sheet aluminium flake is welded.
The technical parameter of the utility model see the table below：
Claims (4)
1. a kind of 220kV air-spaced type metal oxide arrester, including lightning arrester body, lightning arrester body top connection gold
Tool is won in succession (1), and lower part connects discharging gap ring (3)；It is characterized in that：Lightning arrester body is by two section unit of an arrester (2) series connection groups
At equipped with single-column resistor disc column inside every section unit of an arrester (2), outside is cased with silastic material (7), unit of an arrester (2)
Between by being bolted.
2. 220kV air-spaced type metal oxide arrester according to claim 1, it is characterized in that：Resistor disc column is vertical
To being divided into 3 groups, every group in series by multiple resistor discs (5) and aluminium electrode (8), and every group is made of 9-10 sheet resistance piece (5).
3. 220kV air-spaced type metal oxide arrester according to claim 1, it is characterized in that：Silastic material
(7) gamp (4) outer diameter φ 210mm, internal diameter φ 81mm, quantity 11；Umbellule (6) outer diameter φ 174 mm, internal diameter φ 81mm, quantity
10.
4. 220kV air-spaced type metal oxide arrester according to claim 1, it is characterized in that：Discharging gap ring
（3）It is fixed on lightning arrester body lower part, discharging gap ring (3) is welded by oval aluminum pipe and long sheet aluminium flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820637075.4U CN208141935U (en) | 2018-05-02 | 2018-05-02 | 220kV air-spaced type metal oxide arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820637075.4U CN208141935U (en) | 2018-05-02 | 2018-05-02 | 220kV air-spaced type metal oxide arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208141935U true CN208141935U (en) | 2018-11-23 |
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ID=64310331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820637075.4U Active CN208141935U (en) | 2018-05-02 | 2018-05-02 | 220kV air-spaced type metal oxide arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208141935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883965A (en) * | 2022-06-10 | 2022-08-09 | 广东电网有限责任公司 | Overvoltage protection device of transformer substation |
| CN115359983A (en) * | 2022-09-05 | 2022-11-18 | 杭州永德电气有限公司 | Novel arrester for 10KV distribution network |
-
2018
- 2018-05-02 CN CN201820637075.4U patent/CN208141935U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883965A (en) * | 2022-06-10 | 2022-08-09 | 广东电网有限责任公司 | Overvoltage protection device of transformer substation |
| CN115359983A (en) * | 2022-09-05 | 2022-11-18 | 杭州永德电气有限公司 | Novel arrester for 10KV distribution network |
| CN115359983B (en) * | 2022-09-05 | 2023-03-28 | 杭州永德电气有限公司 | Lightning arrester for 10KV distribution network |
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