CN206249973U - A kind of anti-thunder insulator for bare conductor - Google Patents

A kind of anti-thunder insulator for bare conductor Download PDF

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Publication number
CN206249973U
CN206249973U CN201621433494.3U CN201621433494U CN206249973U CN 206249973 U CN206249973 U CN 206249973U CN 201621433494 U CN201621433494 U CN 201621433494U CN 206249973 U CN206249973 U CN 206249973U
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CN
China
Prior art keywords
insulator
bare conductor
thunder
gold utensil
fault detector
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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.)
Expired - Fee Related
Application number
CN201621433494.3U
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Chinese (zh)
Inventor
方旭东
毛靖斐
秦立明
刘晓岑
王思谨
陈为民
周培华
裘学东
张爱祥
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.)
Nanjing Xinhuicheng Electric Co Ltd
State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Nanjing Xinhuicheng Electric Co Ltd
State Grid Corp of China SGCC
Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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 Nanjing Xinhuicheng Electric Co Ltd, State Grid Corp of China SGCC, Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Nanjing Xinhuicheng Electric Co Ltd
Priority to CN201621433494.3U priority Critical patent/CN206249973U/en
Application granted granted Critical
Publication of CN206249973U publication Critical patent/CN206249973U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The application provides a kind of anti-thunder insulator for bare conductor to be applied to 10KV overhead bare conductor novel belt fault detector anti-thunder insulators, used cooperatively using insulator body and fault detector, the insulator body includes gap, in use, when there is Lightning Over-voltage to attack, as long as the amplitude of overvoltage jeopardizes system operation safety, gap between interior insulator copper sheet will transient switching, overvoltage is leaked into the earth by resistor disc, so as to avoid blowing wire because overvoltage builds arc, cause system large-area power-cuts or the generation of secondary accident, ensure system safety operation.The characteristics of simple structure of the present utility model, using effect is good, and economical all good with practicality, suitably promotes the use of.Separately, because this product is safe and reliable, activity duration and difficulty is greatly decreased, is that power system is fixed a breakdown win the quality time in time, effectively reduce the wasting of resources, while saving the confined space of the scope of operation.

Description

A kind of anti-thunder insulator for bare conductor
Technical field
The utility model is related to power transmission and safeguard technical field, more particularly to a kind of lightning protection for bare conductor Insulator.
Background technology
In overhead distribution, bare conductor plays very important effect in distribution operation, is essential one Point.With the passage of use time, overhead bare conductor is run in atmosphere due to exposed for a long time, the surface part oxygen of bare conductor Change, form layer of oxide layer so that bare conductor minor insulation, when thunderbolt insulator, bare conductor thunderbolt insulator occurs and dodges The line tripping that network, lightning-caused breaking accident and thunderbolt are caused.Therefore, accelerating research prevents the insulator that bare conductor thunderbolt is caused from dodging The measure of network, broken string and tripping operation is significant to ensureing the safe and reliable operation of power distribution network.
Utility model content
In view of this, the utility model provides a kind of anti-thunder insulator for bare conductor, naked in the prior art to solve The problems such as insulator arc-over, broken string and tripping operation that wire thunderbolt is caused.
To achieve the above object, the utility model provides following technical scheme:
A kind of anti-thunder insulator for bare conductor, including:
Insulator body and the fault detector being arranged on below the insulator body, the insulator body with it is described Fault detector is fixedly connected by nut;
The insulator body includes:Upper gold utensil, umbrella body and lower gold utensil, the lower end of the upper gold utensil and the upper end phase of umbrella body Embedding to be fixedly connected, the upper end of the lower gold utensil is mutually embedding with the lower end of umbrella body to be fixedly connected, the upper gold utensil, umbrella body and lower gold utensil it Between formed a cavity, be provided with insulation tube in the cavity, in the insulation tube along from upper gold utensil to lower gold utensil direction according to The secondary copper sheet and resistor disc for being provided with two relative tapers, the copper sheet and resistor disc of described two tapers form gap;It is described exhausted The top of edge body includes groove (108), for installing bare conductor;
The fault detector include being sequentially connected and constitute the signal acquiring system of integrative-structure, measure-controlling unit, Initiating unit and mark band actuating mechanism;The mark band is provided with the mark band actuating mechanism, when the insulator sheet When body breaks down, the mark band is blown out from the fault detector, for representing trouble point.
Preferably, the mark band mark band to be formed for reflectorized material makes.
Preferably, the signal acquiring system is current transformer.
Preferably, the measure-controlling unit includes the current measurement circuit, comparator circuit, the triggers circuit that are sequentially connected And protection circuit.
Preferably, the resistor disc is nonlinear zinc oxide resistance sheet.
Preferably, the umbrella body is porcelain umbrella body or sulphurated siliastic umbrella body.
Preferably, rubber-covered pad is provided between the fault detector and the insulator body.
Understood via above-mentioned technical scheme, the anti-thunder insulator for bare conductor that the utility model is provided is to be applied to 10KV overhead bare conductors novel belt fault detector anti-thunder insulator, being coordinated using insulator body and fault detector is made With the insulator body includes gap, in use, when there is Lightning Over-voltage to attack, as long as the width of overvoltage Value jeopardizes system operation safety, the gap between interior insulator copper sheet will transient switching, overvoltage is let out by resistor disc Enter the earth, so as to avoid blowing wire because overvoltage builds arc, cause system large-area power-cuts or the generation of secondary accident, it is ensured that System safety operation.The characteristics of simple structure of the present utility model, using effect is good, and economical all good with practicality, Suitably promote the use of.
In addition, fault detector is by gathering current signal, when current value is not up to setting value, do not start detonation dynamic Make, after current value reaches setting value, start detonation action, mark band is blown out and indicates anti-thunder insulator to damage.This product safety It is reliable, it is that road has been paved in the extensive use of anti-thunder insulator, activity duration and difficulty is greatly decreased, it is that power system is arranged in time Except failure wins the quality time, the wasting of resources is effectively reduced, while the confined space of the scope of operation is saved, and self- recoverage design, Realize non-maintaining operation truly.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawings can be obtained according to the accompanying drawing for providing.
A kind of structural representation of anti-thunder insulator that Fig. 1 is provided for the utility model;
The fault detector internal circuit configuration schematic diagram that Fig. 2 is provided for the utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Shown in Figure 1, the utility model embodiment provides a kind of anti-thunder insulator, including:Insulator body 1 and set The fault detector 2 below the insulator body 1 is put, the insulator body 1 passes through nut with the fault detector 2 3 are fixedly connected.
Wherein, insulator body 1 includes:Upper gold utensil 101, umbrella body 102 and lower gold utensil 103, the lower end of upper gold utensil 101 and umbrella The upper end of body 102 is mutually embedding to be fixedly connected, and the upper end of lower gold utensil 103 is mutually embedding with the lower end of umbrella body 102 to be fixedly connected, upper gold utensil 101, A cavity is formed between umbrella body 102 and lower gold utensil 103, insulation tube 104 is provided with cavity, along from upper in the insulation tube 104 Gold utensil 101 is sequentially provided with relative two copper sheets of taper 107 and resistor disc 105, two copper of taper to the direction of lower gold utensil 103 Piece 107 and resistor disc 105 form gap 106;The top of insulator body 1 includes groove 108, for installing bare conductor.
The anti-thunder insulator that the utility model is provided is provided with internal clearance 106, and internal clearance 106 is discharged more stable. Internal clearance 106 is combined by upper gold utensil 101, lower gold utensil 103, two taper copper sheets 107, resistor disc 105, insulation tube 104.Thunder Discharged by dwell set when electro ultrafiltration, line voltage distribution is completely cut off by gap when thunder and lightning is not acted on, it is to avoid resistor disc electricity It is aging.
Wherein, resistor disc 105 is preferably nonlinear zinc oxide resistance sheet, and zinc oxide resistance sheet uses high-resistivity nano-paste Coating, heavy current impact tolerance superior performance.Insulation tube 104 is epoxy spike pulling, and with good unbending, its machinery is negative Lotus ability is identical with common insulator ability.The specific material of the umbrella body 102 of the insulator body is not limited in the present embodiment, Can be that sulphurated siliastic umbrella body can also be porcelain umbrella body.Alternatively, porcelain umbrella body is used in the present embodiment, relative to silicon sulfide rubber Glue umbrella body, porcelain umbrella body can effectively improve ageing resistance, while greatly improving the service life of insulator body.
In the present embodiment, the top of insulator body 1 includes groove 108, for installing bare conductor.The bare conductor is 10KV overhead bare conductors;Due to the anti-thunder insulator that the utility model is provided, it is internal to have gap, though overhead bare conductor by Run in atmosphere in exposed for a long time, bare conductor surface forms layer of oxide layer, make bare conductor minor insulation, lightning protection insulation The setting of sub- internal clearance, when there is Lightning Over-voltage to attack, as long as the amplitude of overvoltage jeopardizes system operation safety, insulator Internal gap will transient switching, overvoltage is leaked into the earth by non-linear resistor, so as to play a part of arrester; On the other hand, can substantially reduce due to the line tripping rate that thunderbolt is caused, effectively improve power supply reliability.
As shown in Fig. 2 fault detector 2 includes being sequentially connected and constituting the signal acquiring system 21 of integrative-structure, measurement Control unit 22, initiating unit 23 and mark band actuating mechanism 24;Mark band 201 is provided with mark band actuating mechanism 24, when When insulator body 1 breaks down, mark band 201 is blown out from fault detector 2, for representing trouble point.Wherein, signal is adopted Collecting system 21 is current transformer, and measure-controlling unit 22 includes the current measurement circuit 221, comparator circuit being sequentially connected 222nd, triggers circuit 223 and protection circuit 224.
In the present embodiment, the fault detector is acted using current control, and the fault detector is passive, Need not be safeguarded.Fault detector, when current value is not up to setting value, does not start detonation dynamic by gathering current signal Make, after current value reaches setting value, start detonation action, mark band is blown out and indicates anti-thunder insulator to damage.This product safety It is reliable, it is that road has been paved in the extensive use of anti-thunder insulator, activity duration and difficulty is greatly decreased, it is that power system is arranged in time Except failure wins the quality time, the wasting of resources is effectively reduced, while the confined space of the scope of operation is saved, and self- recoverage design, Realize non-maintaining operation truly.
Rubber-covered pad is additionally provided with the present embodiment between fault detector 2 and insulator body 1.The He of insulator body 1 Fault detector 2 is fixed by the screw rod end attaching nut 3 of lower gold utensil 103 and is located on cross-arm.Between fault detector 2 and cross-arm Insulation set can also be carried out including rubber-covered pad.
The anti-thunder insulator that the utility model is provided organically combines insulator, arrester and fault detector, using post Formula structure and built-in gap are designed.The anti-thunder insulator that the utility model is provided, on the one hand, insulator from normal voltage Effect, when there is Lightning Over-voltage to attack, as long as the amplitude of overvoltage jeopardizes system operation safety, the gap of interior insulator is just Meeting transient switching, leaks into the earth, so as to play a part of arrester by overvoltage by non-linear resistor;On the other hand, energy Enough substantially reduce due to the line tripping rate that thunderbolt is caused, effectively improve power supply reliability.
In addition, insulator oxide layer dexterously by the use of overhead bare conductor is used as discharge medium, so as to form bare conductor Heart yearn and gold utensil between stabilization discharging gap, and the built-in gap of the anti-thunder insulator constitutes series gap together, from And other problems of the similar lightning protection device in Poling Construction are efficiently solved, and efficiency is greatly improved, alleviate construction The labour intensity of operating personnel, while improve the reliability of action.
Further, because increase is provided with fault detector, once insulator body breaks down, and can also be by event Barrier indicator for displaying trouble point, reduce overhead bare conductor is intact and anti-thunder insulator by broken by lightning after trouble point looked into Look for, save time and the manpower of artificial lookup.
The anti-thunder insulator that the utility model is provided at least has following several respects advantage:
(1) insulator and fault detector are united two into one, so as to avoid repetition construction, is effectively reduced construction operation The labour intensity of personnel, improves operating efficiency, while ensure that the confined space of shaft tower to greatest extent.
(2) present apparatus has internal clearance electric discharge more stable.Discharged by dwell set when thunder and lightning is acted on, thunder and lightning is not made With when line voltage distribution is completely cut off by gap, it is to avoid zinc oxide resistance sheet voltage ageing.
(3) after anti-thunder insulator body breaks down (built-in electrical insulation failure), anti-thunder insulator fault detector starts Action, indicator is blown out mark band.Mark band is reflectorized material, is easy to line walking to find trouble point, and line attendant is greatly reduced Tour time and working strength, be in time recover normal power supply won the quality time.Indicator is passive, non-maintaining.
(4) level of protection and action stability of the present apparatus do not receive man's activity.
(5) resistor disc and gap are inserted in epoxy spike pulling, with good unbending, its mechanical load ability with it is general Logical insulator ability is identical, and the present apparatus is installed as the installation of common insulator, does not have any injury to bare conductor, is easy to peace Dress.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain Lid nonexcludability is included, so that article or equipment including a series of key elements not only include those key elements, but also Including other key elements being not expressly set out, or it is this article or the intrinsic key element of equipment also to include.Do not having In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that in the article including above-mentioned key element Or also there is other identical element in equipment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (7)

1. a kind of anti-thunder insulator for bare conductor, it is characterised in that including:
Insulator body (1) and the fault detector (2) being arranged on below the insulator body (1), the insulator body (1) it is fixedly connected by nut (3) with the fault detector (2);
The insulator body (1) includes:Upper gold utensil (101), umbrella body (102) and lower gold utensil (103), the upper gold utensil (101) Lower end it is mutually embedding with the upper end of umbrella body (102) be fixedly connected, the upper end of the lower gold utensil (103) and the lower end phase of umbrella body (102) It is embedding to be fixedly connected, the upper gold utensil (101), one cavity of formation between umbrella body (102) and lower gold utensil (103), in the cavity Insulation tube (104) is inside provided with, edge is sequentially provided with from upper gold utensil (101) to lower gold utensil (103) direction in the insulation tube (104) Two relative copper sheets of taper (107) and resistor disc (105), the copper sheet (107) and resistor disc (105) shape of described two tapers Into gap (106);The top of the insulator body (1) includes groove (108), for installing bare conductor;
The fault detector (2) is including being sequentially connected and constitutes the signal acquiring system (21) of integrative-structure, measure control list First (22), initiating unit (23) and mark band actuating mechanism (24);The mark is provided with the mark band actuating mechanism (24) Know band (201), when the insulator body (1) breaks down, the mark band (201) is from the fault detector (2) Blow out, for representing trouble point.
2. the anti-thunder insulator for bare conductor according to claim 1, it is characterised in that the mark band (201) is Reflectorized material makes the mark band to be formed.
3. the anti-thunder insulator for bare conductor according to claim 2, it is characterised in that the signal acquiring system (21) it is current transformer.
4. the anti-thunder insulator for bare conductor according to claim 3, it is characterised in that the measure-controlling unit (22) current measurement circuit (221), comparator circuit (222), triggers circuit (223) and protection circuit including being sequentially connected (224)。
5. the anti-thunder insulator for bare conductor according to claim 1, it is characterised in that the resistor disc (105) is Nonlinear zinc oxide resistance sheet.
6. the anti-thunder insulator for bare conductor according to claim 1, it is characterised in that the umbrella body (102) is porcelain Umbrella body or sulphurated siliastic umbrella body.
7. the anti-thunder insulator for bare conductor according to claim 1, it is characterised in that the fault detector (2) Rubber-covered pad is provided between the insulator body (1).
CN201621433494.3U 2016-12-23 2016-12-23 A kind of anti-thunder insulator for bare conductor Expired - Fee Related CN206249973U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621433494.3U CN206249973U (en) 2016-12-23 2016-12-23 A kind of anti-thunder insulator for bare conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621433494.3U CN206249973U (en) 2016-12-23 2016-12-23 A kind of anti-thunder insulator for bare conductor

Publications (1)

Publication Number Publication Date
CN206249973U true CN206249973U (en) 2017-06-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111814355A (en) * 2020-07-24 2020-10-23 南方电网科学研究院有限责任公司 Method and device for protecting high-voltage transmission line from lightning shielding failure and terminal equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111814355A (en) * 2020-07-24 2020-10-23 南方电网科学研究院有限责任公司 Method and device for protecting high-voltage transmission line from lightning shielding failure and terminal equipment
CN111814355B (en) * 2020-07-24 2024-04-26 南方电网科学研究院有限责任公司 High-voltage transmission line lightning shielding failure protection method and device and terminal equipment

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20170613

Termination date: 20201223