CN105870857A - High-pressure wall bushing of three-element structure - Google Patents

High-pressure wall bushing of three-element structure Download PDF

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Publication number
CN105870857A
CN105870857A CN201610365763.5A CN201610365763A CN105870857A CN 105870857 A CN105870857 A CN 105870857A CN 201610365763 A CN201610365763 A CN 201610365763A CN 105870857 A CN105870857 A CN 105870857A
Authority
CN
China
Prior art keywords
ground
wall bushing
accessory system
electrode side
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610365763.5A
Other languages
Chinese (zh)
Inventor
李永东
郭良松
刘新宇
张德赛
李国�
李国一
魏国强
袁幼林
艾比布勒·塞塔尔
宋占党
原春亮
陈兴
苏宁
刘彪
黄新民
郑斌
陈疆
张艳辉
周凡
巴克热木·艾克拜尔
刘占钧
吕昌满
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd
URUMQI POWER SUPPLY Co OF STATE GRID XINJIANG ELECTRIC POWER Co
Original Assignee
HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd
URUMQI POWER SUPPLY Co OF STATE GRID XINJIANG ELECTRIC POWER Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd, URUMQI POWER SUPPLY Co OF STATE GRID XINJIANG ELECTRIC POWER Co filed Critical HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd
Priority to CN201610365763.5A priority Critical patent/CN105870857A/en
Publication of CN105870857A publication Critical patent/CN105870857A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/24—Installation of lines or cables on walls, ceilings or floors by means of insulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insulators (AREA)

Abstract

The invention relates to a high-pressure wall bushing of a three-element structure. A grounding side attachment system is arranged on the grounding side of the wall bushing, and an electrode side attachment system is arranged on the electrode side of the wall bushing. The grounding side attachment system is composed of an insulation part and a conductive part which are in close contact. The electrode side attachment system is made of an insulation material. The conductive part of the grounding side attachment system is in contact with the grounding side, and the insulation part is in contact with the conductive part. The insulation material of the electrode side attachment system is in contact with the electrode side. According to the grounding side attachment system, the electric field intensity near a flange is reduced, the corona starting voltage is improved, the diameter and the thickness of an umbrella skirt near to the flange are increased, equivalently, the surface capacitance is reduced, and the flashover voltage is improved. The movement locus of discharge charges can be guided, diffusion of the discharge charges can be blocked, the discharge path of flashover is lengthened, and the dry flashover voltage is improved; pollution flashover is restrained, and the wet flashover voltage is improved; the three-element structure is also suitable for all other types of wall bushings.

Description

A kind of high-voltage wall bushing of three element structures
Technical field
The present invention relates to a kind of high-voltage wall bushing, the high-voltage wall bushing of a kind of three element structures.
Background technology
In sleeve pipe is the metal box that current－carrying conductor introduces electrical equipment or bus through wall time lead wire insulation.This Invention relates to porcelain bushing shell, and its insulating body is porcelain piece.
Existing 10kV bushing 1 structure is shown in Fig. 5, has earthing pole 4, conductive electrode 3.The surface voltage of sleeve pipe Being distributed the most uneven, at earthing pole flange periphery, electric field is extremely concentrated, it is easy to start corona and flashover from there Electric discharge, therefore dry flashover voltage is the highest.In the case of overvoltage, particularly in the case of lightning surge, its Discharge voltage is relatively low, affects its lightning protection properties.
Porcelain belongs to inorganic material, and ceramic material has excellent electromechanical properties, and the performance of resistance to climate might as well；But Porcelain surface has hydrophilic so that the pollution layer moisture-sensitive of insulator surface, causes insulator to have under running voltage It may happen that flashover, here it is the recurrent pollution flashover of power system at present.
Along with expanding economy, filthy problem has become as the serious problems produced with economic quickly growth.Fortune Row empirical evidence, the pollution flashover of insulator be up under the conditions of the one of the main reasons of circuit power-off.Except Outside serious industrial filth, the primary pollution source affecting power system at present also has the filth naturally in ocean or desert. The harm that the pollution flashover accident of insulator is caused serious threat is to the safety of power system.At present, how to improve The antifouling work ability of power system has become as the big problem that domestic and international Utilities Electric Co. faces.
On the other hand, wall bushing mean level is installed, and outdoor part full skirt is less, thus its wet flash-over voltage and Pollution flashover voltage is the highest.
Silicone Rubber Based Coatings is the solution of a kind of anti-pollution flashover at present, and the purpose of this coating is by porcelain insulator The hydrophilic on surface changes into hydrophobicity.But antifouling flush paint is it is generally required to construct at the scene, exists and be difficult to ensure The problems such as quality, material and manpower consumption are big, price is high, therefore can only be as a kind of provisional, remedial Measure.
And improve the lightning impulse voltage of wall bushing after dispatching from the factory and wet flash-over voltage, exhausted for traditional structure Edge is extremely difficult.
The applicant in " a kind of insulator that can improve external insulation electric strength " patent disclosed in CN101409120, Analyze all insulant, all kinds, all electric pressures and all alternating current-direct current insulators structure it After, sum up they common ground structurally, i.e. they are all by insulating body and to connect the big element group of gold utensil two Becoming, therefore above-mentioned all of conventional insulators is referred to as two element structure insulators, connecting gold utensil is first element, Insulating body is second element, and points out that this insulator is structurally incomplete.As shown in Figure 5 It it is exactly the wall bushing of existing two element structures.This patent is theoretical according to Electric Field Distribution, gas discharge theoretical and Creeping discharge in gas is theoretical, sets up accessory system, form the 3rd element, by tradition in conventional insulators The imperfect structures of insulator changes into the complete structure of three elements.Three element structures be applicable to all insulant, All kinds, the insulator of all electric pressures and AC and DC transmission of electricity insulator.
Due to this patent the scope of application widely, therefore to further by this patent improvement with become more meticulous, In order to make three element structural insulation can be promoted larger in reality application, special for high-voltage wall bushing, carry Go out the high-voltage wall bushing of a kind of three element structures.
Summary of the invention
It is an object of the invention to for above-mentioned present situation, it is desirable to provide a kind of can improve this insulator antifouling work, Wet sudden strain of a muscle and lightning protection capability, the insulation configuration for transformer station provides the height of three element structures more, more rationally selected Pressure wall bushing.
The implementation of the object of the invention is, the high-voltage wall bushing of a kind of three element structures, connects at wall bushing Side, ground arranges ground side accessory system, and electrode side arranges electrode side accessory system；
Ground side accessory system is made up of ground insulation part and ground connection current-carrying part, and ground insulation part is led with ground connection Electricity part is in close contact；Electrode side accessory system uses insulant.
Present invention have the advantage that
1, severe non-uniform electric field at ground connection flange periphery is extended to ground connection by the ground connection current-carrying part of ground side accessory system The insulated part of side accessory system, reduces the electric field intensity near flange, improves corona inception voltage, accordingly Improve flashover voltage；
2, the ground insulation part of ground side accessory system increases diameter and thickness, the phase of the full skirt near flange When the electric capacity in surface reduces, improve flashover voltage；
3, when ground side produces electric discharge, the ground insulation part of ground side accessory system can guide discharge charge Movement locus, is effectively improved the dry flashover voltage of wall bushing；
4, when electrode side produces corona discharge, the insulant of electrode side accessory system, corona charge can be stopped Diffusion, extends the discharge path of flashover, is effectively improved the dry flashover voltage of wall bushing；
5, the insulated part of ground side accessory system and the insulant of electrode side accessory system employing have hydrophobicity, make The leakage current obtaining insulator surface pollution layer is greatly reduced, again owing to adding creep age distance so that leakage current enters One step reduces, and effectively inhibits pollution flashover；
6, the insulated part of ground side accessory system and the insulant of electrode side accessory system employing can reduce quilt The surface that rainwater drenches, is effectively improved the wet flash-over voltage of wall bushing.
It is suitable for the wall bushing of every other type.
Accompanying drawing explanation
Fig. 1 be 10kV tri-element structure high-voltage wall bushing (one of) structural representation,
Fig. 2 is the structural representation of 10kV tri-element structure high-voltage wall bushing ground side accessory system,
Fig. 3 is the structural representation of 10kV tri-element structure high-voltage wall bushing (two)
Fig. 4 is the structural representation of 10kV tri-element high-voltage wall bushing ground side accessory system,
Fig. 5 is the structural representation of 10kV two element structure high-voltage wall bushing.
Detailed description of the invention
The present invention arranges ground side accessory system in wall bushing ground side, and electrode side arranges electrode side accessory system.
Ground side accessory system is made up of ground insulation part and ground connection current-carrying part, and ground insulation part is led with ground connection Electricity part is in close contact；Electrode side accessory system uses insulant.
The ground connection current-carrying part of described ground side accessory system contacts with ground side, and ground insulation part is conducted electricity with ground connection Part contact.
The insulant of electrode side accessory system and electrode side contacts.
Described ground side, the insulating polymer material that insulant is hydrophobicity of insulated part of electrode side accessory system Material, the ground connection conductive material of ground side current-carrying part is metal material or conducing composite material；Described conduction composite wood Material is conductive rubber or conductive plastics.
The present invention is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1, the ground side 4 at 10kV high-voltage wall bushing 1 arranges ground connection accessory system one 2-1, electrode Side 3 arranges electrode attachment system one 3-1.
With reference to Fig. 2, ground side accessory system one 2-1 by ground insulation part one 5-1 and ground connection current-carrying part one 6-1 Composition.Severe non-uniform electric field at flange periphery is extended to connecing of ground side accessory system by ground connection current-carrying part one 6-1 Ground insulated part one 5-1, reduces the electric field intensity near flange, improves corona inception voltage, correspondingly carry High flashover voltage.Ground insulation part one 5-1 increases diameter and the thickness of the full skirt near flange, is equivalent to The electric capacity on surface reduces, and improves flashover voltage.When high-voltage wall bushing ground side produces electric discharge, ground insulation Part one 5-1 can guide the movement locus of discharge charge, is effectively improved the dry flashover voltage of wall bushing.Ground connection Insulated part one 5-1 is organic insulation, has both increased the creep age distance of insulator, again the hating of enforced insulator Outlet capacity, improves pollution flashover voltage.Ground insulation part one 5-1 can also reduce the surface drenched by rainwater, has Effect improves the wet flash-over voltage of wall bushing.
When high-voltage wall bushing electrode side produces corona discharge, electrode side accessory system one 3-1 can stop corona electricity The diffusion of lotus, extends the discharge path of flashover, is effectively improved the dry flashover voltage of wall bushing.Electrode side adnexa system Unified 3-1 uses organic insulation, has both increased the creep age distance of insulator, again the hydrophobic energy of enforced insulator Power, improves pollution flashover voltage.Electrode side accessory system one 3-1 can reduce the surface drenched by rainwater, effectively carries The wet flash-over voltage of high wall bushing.
With reference to Fig. 3, the ground side 4 at 10kV high-voltage wall bushing 1 arranges ground side accessory system two 2-2, connects The difference of ground side accessory system one 2-1 of ground side accessory system two 2-2 with Fig. 1 is: ground side accessory system Two 2-2 have stretched a segment length toward the radial direction of high-voltage wall bushing.Electrode side 3 arranges electrode side accessory system two The difference of electrode side accessory system one 3-1 of 3-2, electrode side accessory system two 3-2 with Fig. 1 is: electrode side is attached Part system two 3-2 stretches in axial shortening one segment length of high-voltage wall bushing, the radial direction toward high-voltage wall bushing One segment length, decreases die cost, simplifies releasing process.
It is made up of insulated part two 5-2 and current-carrying part two 6-2 with reference to Fig. 4, ground side accessory system two 2-2. Severe non-uniform electric field at flange periphery is extended to the insulated part two of ground side accessory system by current-carrying part two 6-2 5-2, reduces the electric field intensity near flange, improves corona inception voltage, correspondingly improves flashover voltage. Insulated part two 5-2 increases diameter and the thickness of the full skirt near flange, and the electric capacity being equivalent to surface reduces, Improve flashover voltage.
When high-voltage wall bushing electrode side produces electric discharge, electrode side accessory system 3-2 can more effectively barrier discharge The diffusion of electric charge, extends the discharge path of flashover, is effectively improved the dry flashover voltage of wall bushing.Electrode side adnexa System two 3-2 uses organic insulation, has both increased the creep age distance of insulator, the again hydrophobic of enforced insulator Ability, improves pollution flashover voltage.Electrode side accessory system two 3-2 can reduce the surface drenched by rainwater, effectively Improve the wet flash-over voltage of wall bushing.

Claims (4)

1. the high-voltage wall bushing of an element structure, it is characterised in that: arrange in wall bushing ground side and connect Side, ground accessory system, electrode side arranges electrode side accessory system；
Ground side accessory system is made up of ground insulation part and ground connection current-carrying part, and ground insulation part is led with ground connection Electricity part is in close contact；Electrode side accessory system uses insulant.
The high-voltage wall bushing of a kind of three element structures the most according to claim 1, it is characterised in that: connect The ground connection current-carrying part of side, ground accessory system contacts with ground side, ground insulation part and ground connection conductive portions contact.
The high-voltage wall bushing of a kind of three element structures the most according to claim 1, it is characterised in that: electricity The insulant of side, pole accessory system and electrode side contacts.
The high-voltage wall bushing of a kind of three element structures the most according to claim 1, it is characterised in that: connect Side, ground, the insulating polymer material that insulant is hydrophobicity of insulated part of electrode side accessory system, ground side The ground connection conductive material of current-carrying part is metal material or conducing composite material；Described conducing composite material is conduction rubber Glue or conductive plastics.
CN201610365763.5A 2016-05-26 2016-05-26 High-pressure wall bushing of three-element structure Pending CN105870857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610365763.5A CN105870857A (en) 2016-05-26 2016-05-26 High-pressure wall bushing of three-element structure

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Application Number Priority Date Filing Date Title
CN201610365763.5A CN105870857A (en) 2016-05-26 2016-05-26 High-pressure wall bushing of three-element structure

Publications (1)

Publication Number Publication Date
CN105870857A true CN105870857A (en) 2016-08-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2360703A1 (en) * 2008-11-20 2011-08-24 Wuhan Desai Electric Power Equipment Co., Ltd. An insulator capable of improving the electrical strength of external insulation
CN202042293U (en) * 2011-04-14 2011-11-16 湖北鑫德赛绝缘技术有限公司 Insulator capable of improving external insulating strength and monitoring on line
CN202352429U (en) * 2011-12-01 2012-07-25 湖北鑫德赛绝缘技术有限公司 Insulator with combined barriers
CN102682934A (en) * 2011-12-01 2012-09-19 湖北鑫德赛绝缘技术有限公司 Insulator with combined type barrier
CN103474187A (en) * 2013-09-28 2013-12-25 衡阳华瑞电气有限公司 Anti-bending wall bushing
CN205811469U (en) * 2016-05-26 2016-12-14 国网新疆电力公司乌鲁木齐供电公司 A kind of high-voltage wall bushing of three element structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2360703A1 (en) * 2008-11-20 2011-08-24 Wuhan Desai Electric Power Equipment Co., Ltd. An insulator capable of improving the electrical strength of external insulation
CN202042293U (en) * 2011-04-14 2011-11-16 湖北鑫德赛绝缘技术有限公司 Insulator capable of improving external insulating strength and monitoring on line
CN202352429U (en) * 2011-12-01 2012-07-25 湖北鑫德赛绝缘技术有限公司 Insulator with combined barriers
CN102682934A (en) * 2011-12-01 2012-09-19 湖北鑫德赛绝缘技术有限公司 Insulator with combined type barrier
CN103474187A (en) * 2013-09-28 2013-12-25 衡阳华瑞电气有限公司 Anti-bending wall bushing
CN205811469U (en) * 2016-05-26 2016-12-14 国网新疆电力公司乌鲁木齐供电公司 A kind of high-voltage wall bushing of three element structures

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C06 Publication
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CB02 Change of applicant information

Address after: 830011 Beijing South Road, Urumqi, No. 1, No.

Applicant after: STATE GRID XINJIANG ELECTRIC POWER CO., LTD. URUMQI POWER SUPPLY Co.

Applicant after: HUBEI XINDESAI INSULATION TECHNOLOGY Co.,Ltd.

Address before: 830011 Beijing South Road, Urumqi, No. 1, No.

Applicant before: STATE GRID XINJIANG ELECTRIC POWER COMPANY URUMQI ELECTRIC POWER SUPPLY Co.

Applicant before: HUBEI XINDESAI INSULATION TECHNOLOGY Co.,Ltd.

CB02 Change of applicant information
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Huang Zhen

Inventor after: Yuan Chunliang

Inventor after: Chen Xing

Inventor after: Su Ning

Inventor after: Liu Biao

Inventor after: Huang Xinmin

Inventor after: Zheng Bin

Inventor after: Chen Jiang

Inventor after: Zhang Yanhui

Inventor after: Zhou Fan

Inventor after: Bakrem Akbar

Inventor after: Guo Liangsong

Inventor after: Liu Zhanjun

Inventor after: Lv Changman

Inventor after: Liu Xinyu

Inventor after: Zhang Desai

Inventor after: Li Guoyi

Inventor after: Wei Guoqiang

Inventor after: Yuan Youlin

Inventor after: Abybro Sethar

Inventor after: Song Zhandang

Inventor before: Li Yongdong

Inventor before: Yuan Chunliang

Inventor before: Chen Xing

Inventor before: Su Ning

Inventor before: Liu Biao

Inventor before: Huang Xinmin

Inventor before: Zheng Bin

Inventor before: Chen Jiang

Inventor before: Zhang Yanhui

Inventor before: Zhou Fan

Inventor before: Bakrem Akbar

Inventor before: Guo Liangsong

Inventor before: Liu Zhanjun

Inventor before: Lv Changman

Inventor before: Liu Xinyu

Inventor before: Zhang Desai

Inventor before: Li Guoyi

Inventor before: Wei Guoqiang

Inventor before: Yuan Youlin

Inventor before: Abybro Sethar

Inventor before: Song Zhandang

CB02 Change of applicant information

Address after: 830011 Beijing South Road, Urumqi, the Xinjiang Uygur Autonomous Region 1

Applicant after: STATE GRID XINJIANG ELECTRIC POWER CO., LTD. URUMQI POWER SUPPLY Co.

Applicant after: HUBEI XINDESAI INSULATION TECHNOLOGY Co.,Ltd.

Address before: 830011 Beijing South Road, Urumqi, the Xinjiang Uygur Autonomous Region 1

Applicant before: STATE GRID XINJIANG ELECTRIC POWER COMPANY URUMQI ELECTRIC POWER SUPPLY Co.

Applicant before: HUBEI XINDESAI INSULATION TECHNOLOGY Co.,Ltd.

CB02 Change of applicant information
CB03 Change of inventor or designer information

Inventor after: Huang Zhen

Inventor after: Song Zhandang

Inventor after: Yuan Chunliang

Inventor after: Chen Xing

Inventor after: Su Ning

Inventor after: Liu Biao

Inventor after: Huang Xinmin

Inventor after: Zheng Bin

Inventor after: Chen Jiang

Inventor after: Zhang Yanhui

Inventor after: Zhou Fan

Inventor after: Li Yongdong

Inventor after: Bakrem Akbar

Inventor after: Liu Zhanjun

Inventor after: Lv Changman

Inventor after: Guo Liangsong

Inventor after: Liu Xinyu

Inventor after: Zhang Desai

Inventor after: Li Guoyi

Inventor after: Wei Guoqiang

Inventor after: Yuan Youlin

Inventor after: Abybro Sethar

Inventor before: Li Yongdong

Inventor before: Yuan Chunliang

Inventor before: Chen Xing

Inventor before: Su Ning

Inventor before: Liu Biao

Inventor before: Huang Xinmin

Inventor before: Zheng Bin

Inventor before: Chen Jiang

Inventor before: Zhang Yanhui

Inventor before: Zhou Fan

Inventor before: Bakrem Akbar

Inventor before: Guo Liangsong

Inventor before: Liu Zhanjun

Inventor before: Lv Changman

Inventor before: Liu Xinyu

Inventor before: Zhang Desai

Inventor before: Li Guoyi

Inventor before: Wei Guoqiang

Inventor before: Yuan Youlin

Inventor before: Abybro Sethar

Inventor before: Song Zhandang

CB03 Change of inventor or designer information
CI02 Correction of invention patent application
CI02 Correction of invention patent application

Correction item: Applicant|Address|Applicant

Correct: Urumqi Power Supply Company of State Grid Xinjiang Electric Power Company|830011 Beijing South Road, Urumqi, the Xinjiang Uygur Autonomous Region 1|Hubei Xindesai Insulation Technology Co., Ltd.

False: Urumqi power supply company of Xinjiang Power Co., Ltd.|830011 Beijing South Road, Urumqi, the Xinjiang Uygur Autonomous Region 1|Hubei Xindesai Insulation Technology Co., Ltd.

Number: 15-01

Volume: 34

Correction item: Inventor

Correct: Li Yongdong|Guo Liangsong|Liu Xinyu|Zhang Desai|Li Guoyi|Wei Guoqiang|Yuan Youlin|Abybro Sethar|Song Zhandang|Yuan Chunliang|Chen Xing|Su Ning|Liu Biao|Huang Xinmin|Zheng Bin|Chen Jiang|Zhang Yanhui|Zhou Fan|Bakrem Akbar|Liu Zhanjun|Lv Changman

False: Huang Zhen|Guo Liangsong|Liu Xinyu|Zhang Desai|Li Guoyi|Wei Guoqiang|Yuan Youlin|Abybro Sethar|Song Zhandang|Yuan Chunliang|Chen Xing|Su Ning|Liu Biao|Huang Xinmin|Zheng Bin|Chen Jiang|Zhang Yanhui|Zhou Fan|Bakrem Akbar|Liu Zhanjun|Lv Changman

Number: 15-01

Volume: 34

RJ01 Rejection of invention patent application after publication

Application publication date: 20160817

RJ01 Rejection of invention patent application after publication