CN206116119U - Lightning protection ware - Google Patents

Abstract

The utility model provides an use lightning protection ware in 35kV and following overhead distributing circuit, belong to strain insulator among the distribution system insulating with the lightning protection field, design through configuration optimization, effectively improve lightning protection ware's life. This lightning protection ware includes lightning arrester body, insulator part and discharging ring, lightning arrester body assembles through establishing ties with the insulator part, discharging ring includes left discharging ring and right discharging ring, installs the lightning protection ware in the middle of on gold utensil and the tail end gold utensil respectively or installs respectively on the gold utensil of disconnect -type insulator partial both ends, a left side discharging ring with form air gap between the discharging ring of the right side. The utility model discloses not only possess the insulating function of strain insulator, still possess the lightning protection function, one kind and collect insulating and lightning protection in the novel product of an organic whole of strain insulator, the annular gap who establishes ties with lightning arrester body can adjust in the certain limit, satisfies multiple lightning protection level, simple to operate, and long service life, safe and reliable, it is convenient to maintain.

Description

A kind of anti-lightening protector

Technical field

This utility model is related to the strain insulator insulation of overhead distribution system and Lightning Prevention Technique field, specifically, It is related to a kind of anti-lightening protector.

Background technology

Electric line is the basis of power system, is responsible for the important function that power system normally runs.As a rule, Power system can meet with some natural disasters for being difficult to overcome during power transmission and distribution, and especially unmanageable thunder and lightning is existing As causing very serious destruction to electric line.Counted according to practical data, the amplitude of lightning surge is left up to 400kV The right side, amplitude of lightning current are maked somebody a mere figurehead exhausted up to 100kA or so, so high amplitude considerably beyond in 35kV and following distribution system The resistance to thunder level of edge circuit, if be not any limitation as to Overvoltage Amplitude, insulated overhead line just cannot safe operation.Wherein thunder Electric overvoltage is exactly to cause the one of the main reasons of Broken of Overhead Insulation Lines By Lightning and line tripping problem in distribution system.

In practical application, when bare conductor is subjected to Lightning Over-voltage, due to the electric power relation that lightning current is produced, Shuo Qianan The thunder and lightning of training level flows to load side movement and the diffusion rapidly of circuit, until circuit breaker trip protection act on circuit, so as to not Wire can be caused seriously to burn out occur with lightning-caused breaking phenomenon.But insulated conductor is then different, due to existing around breakdown point Insulating barrier, hinders the translational speed of lightning current, and it is bad to radiate, and stop can arc root and produce on one point or one section of circuit electricity Arc burn, the arc root temperature of electric arc up to thousands of degree, circuit when any leakage conductor or anti-lightening protector is fitted without, thunder Hit and must break, circuit breaker trip protection on circuit has little time action at all.When lightning surge amplitude is too high, can also cause line Insulator or insulator chain flashover in road, the power frequency continued flow that lightning flash over is produced can burn out insulator umbrella and ultimately result in insulation Son damage, if the power frequency continued flow time is long, can also lead Frequent trip the problems such as.

It is either in order to prevent lightning-caused breaking, or the problem of reduction line tripping or line insulator flashover, traditional Lightning-protected product all there are problems that following：

1., in part strain insulator-string or the lightning protection of suspension string, all it is one anti-lightening protector of independent parallel connection compared with common practice Or overcurrent protection device, and anti-lightening protector itself does not possess strain insulator function, need to purchase insulator and lightning-protected product simultaneously, Lightning protection cost is significantly improved；

2. the schemes of prevention against lightning used in traditional lightning protection strain insulator wire clamp string typically has two kinds, and one kind is strain insulator insulation Sub- side dress parallel connection air gap structure, one kind is that strain insulator side fills lightning arrester connected in parallel series gap structure, this two line structure It is problematic in that, front kind of structure is similar to the problem of anti-thunder insulator in circuit, and power frequency continued flow length can cause line tripping, plant afterwards , because spark gap cascaded structure is side dress, protection effect is poor, and gap is installed and is difficult to align for structure, eventually causes flashover electric discharge to carry Height causes insulator arc-over or lightning-caused breaking phenomenon to occur, cost also higher various problems；

3. the discharging structure majority of traditional lightning-protected product is point-to-point discharge type, and electric discharge arcing number of times is limited, using the longevity Life is shorter.

Phenomenon for more than, the lightning-protected product that this utility model is provided is from efficiently solving power frequency continued flow length and line at all Two big main cause of road Frequent trip, lightning arrester body problem of aging, spark gap and strain insulator function it is two-in-one, band automatism isolation Failure function, gap protection effect are good and adjustable, and ring discharge service life is longer, and connection gold utensil variation can meet different company Connect, safe and reliable, structure optimization, good looking appearance.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of anti-lightening protector, it is possible to increase anti-lightening protector Service life.

This utility model embodiment provides a kind of anti-lightening protector, including lightning arrester body, insulator portion and electric discharge Ring, the lightning arrester body pass through assembled in series with insulator portion；

The electric discharge ring includes left electric discharge ring and right electric discharge ring, is separately mounted to anti-lightening protector middle hardware and tail end gold On tool or it is separately mounted to separating insulated subdivision two ends gold utensil, between the left electric discharge ring and the right electric discharge ring, forms empty Gas gap.

This utility model embodiment additionally provides the first possible embodiment of the anti-lightening protector, wherein, it is described Electric discharge ring anchor ring perpendicular to the axis of the anti-lightening protector, it is described it is left and right electric discharge ring anchor ring be it is parallel to each other, it is described Lightning arrester body, insulator portion and electric discharge ring are all coaxial mounted, uniform force during Tensile.

This utility model embodiment additionally provides second possible embodiment of the anti-lightening protector, wherein, it is described Fixed structure is provided with electric discharge ring, for ring is removable is fixed on the insulator portion by the electric discharge, so that the left side The distance between electric discharge ring and the right electric discharge ring are fixed as one of multiple predeterminable ranges, and the electric discharge ring can be around the insulation 360 ° of the axis rotation of subdivision.

This utility model embodiment additionally provides the third possible embodiment of the anti-lightening protector, wherein, it is described Lightning arrester body connects as one structure with insulator portion, and each independently uses external insulation sleeve, and each several part breaks down can With mutually unaffected.

This utility model embodiment additionally provides the 4th kind of possible embodiment of the anti-lightening protector, wherein, it is described Connection gold utensil is correspondingly arranged on each on lightning arrester body and insulator portion, so that the lightning arrester body releasable connection is in institute State insulator portion one end.

This utility model embodiment additionally provides the 5th kind of possible embodiment of the anti-lightening protector, wherein, it is described The outer end of lightning arrester body and insulator portion is provided with connection gold utensil, so that the anti-lightening protector is connected laterally at shaft tower Between cross-arm and high-tension line.

This utility model embodiment additionally provides the 6th kind of possible embodiment of the anti-lightening protector, wherein, it is described Connection gold utensil is at least one in ball-and-socket joint, bulb joint, single ears gold utensil or earring-shaped gold utensil.

This utility model embodiment additionally provides the 7th kind of possible embodiment of the anti-lightening protector, wherein, it is described Disconnector is provided with lightning arrester body, the disconnector is for when the lightning arrester body or insulator portion break down Depart from the lightning arrester body.

This utility model embodiment additionally provides the 8th kind of possible embodiment of the anti-lightening protector, wherein, it is described Disconnector is connected with the screw rod stretched out inside the lightning arrester body, and the other end is connected with the electric discharge ring by attachment structure Connect.

This utility model embodiment additionally provides the 9th kind of possible embodiment of the anti-lightening protector, wherein, it is described Attachment structure is for hard connecting plate, can be hard connecting plate in separate structure or be flexible coupling in integral structure.

This utility model embodiment brings following beneficial effect：The anti-lightening protector that this utility model embodiment is provided In, including lightning arrester body, insulator portion and electric discharge ring, and high-tension circuit is connected in parallel on after spark gap main body is connected with electric discharge ring On.Electric discharge ring includes relative and spaced left electric discharge ring and right electric discharge ring, insulate between left electric discharge ring and right electric discharge ring, from And discharging gap is formed between left electric discharge ring and right electric discharge ring.When being struck by lightning, discharge ring formed discharging gap with connect Lightning arrester body moment it is breakdown, discharge lightning current in time, protect insulated conductor, line insulator and itself external insulation Set, so as to lightning-caused breaking phenomenon will not be caused to occur.When overvoltage returns to power-frequency voltage, lightning arrester body is reverted to absolutely again Edge body, can effectively block the power frequency arc afterflow produced at discharging gap position, make circuit recover normal, so as to cause Line tripping.Therefore, the anti-lightening protector employs the discharge type of the stronger spark gap series gap of arc extinguishing ability, can be effective Power frequency short circuit afterflow (quenching time is up to Microsecond grade) produced after preventing lightning discharge, arc extinguishing ability are higher, fundamentally Inhibit the generation of lightning-caused breaking and line tripping phenomenon in insulated overhead line.

Additionally, the anti-lightening protector that this utility model embodiment is provided is using annular electric discharge ring structure, discharge type has Not in traditional structure, power frequency arc can be made not stay in a little upper burning, burning is likely on any position of ring body, because This can significantly improve the burning number of times of power frequency arc, the service life overall so as to improve electric discharge ring and anti-lightening protector.

Other feature and advantage of the present utility model will be illustrated in the following description, also, partly from description In become apparent, or by implement this utility model and understand.The purpose of this utility model and other advantages are in explanation In book, claims and accompanying drawing, specifically noted structure is realizing and obtain.

To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and Accompanying drawing appended by coordinating, is described in detail below.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to using needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 shows the schematic diagram of the anti-lightening protector provided by this utility model embodiment one；

Fig. 2 shows the schematic diagram of the anti-lightening protector provided by this utility model embodiment two；

Fig. 3 shows the schematic diagram of the anti-lightening protector provided by this utility model embodiment three.

Illustrate：

1：Anti-lightening protector； 11：Lightning arrester body； 12：Electric discharge ring；

121：Left electric discharge ring； 122：Right electric discharge ring； 13：Insulator portion；

14：Disconnector； 141：Hard connecting plate.

Specific embodiment

It is to make purpose, technical scheme and the advantage of this utility model embodiment clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in this utility model embodiment, it is clear that described Embodiment be only a part of embodiment of this utility model, rather than the embodiment of whole.Therefore, below to carrying in the accompanying drawings For the detailed description of embodiment of the present utility model be not intended to limit claimed scope of the present utility model, but only Selected embodiment of the present utility model is represented only.Based on embodiment of the present utility model, those skilled in the art are not making The every other embodiment obtained on the premise of creative work, belongs to the scope of this utility model protection.

Existing lightning-protected product, when being struck by lightning, power frequency arc is stopped and is burnt on one point, it will the use of guiding discharge ring Service life reduction.

Based on this, this utility model embodiment provide a kind of anti-lightening protector, it is possible to increase the use of anti-lightening protector Life-span.

Embodiment one：

As shown in figure 1, this utility model embodiment provides a kind of anti-lightening protector 1, including lightning arrester body 11, insulation Subdivision 13 and electric discharge ring 12, lightning arrester body 11 pass through assembled in series with insulator portion 13.Electric discharge ring 12 includes left electric discharge Ring 121 and right electric discharge ring 122, are separately mounted on 1 middle hardware of anti-lightening protector and tail end gold utensil, and left electric discharge ring 12 and the right side are put The air gap is formed between electric ring 12.

The schemes of prevention against lightning used in traditional lightning protection strain insulator wire clamp string typically has two kinds, and one kind is strain insulator Side dress air gap structure in parallel, one kind are strain insulator side dress lightning arrester connected in parallel series gap structures, and this two line structure is all Existing problems, front kind of structure are similar to the problem of anti-thunder insulator in circuit, and latter arrangements are because spark gap cascaded structure is side Dress, protection effect is poor, and gap installation is difficult to align, cost also higher various problems.

By contrast, in the anti-lightening protector 1 that this utility model embodiment is provided, including lightning arrester body 11, insulator Part 13 and electric discharge ring 12, and be connected in parallel on high-tension circuit after lightning arrester body 11 is connected with electric discharge ring 12.Electric discharge ring 12 includes Relative and spaced left electric discharge ring 121 and right electric discharge ring 122, insulate between left electric discharge ring 121 and right electric discharge ring 122, from And discharging gap is formed between left electric discharge ring 121 and right electric discharge ring 122.When being struck by lightning, between the electric discharge that the ring 12 that discharges is formed Gap is breakdown with 11 moment of lightning arrester body connected, and discharges lightning current in time, protect insulated conductor, line insulator and from Body external insulation sleeve, so as to lightning-caused breaking phenomenon will not be caused to occur.When overvoltage returns to power-frequency voltage, lightning arrester body 11 Insulator is reverted to again, the power frequency arc afterflow produced at discharging gap position can be effectively blocked, and makes circuit recover normal, from Without causing line tripping.Relative to traditional anti-thunder insulator strain clamp string, this utility model embodiment employs arc extinguishing The discharge type of the stronger spark gap series gap of ability, the power frequency short circuit afterflow that can be produced after effectively preventing lightning discharge (quenching time is up to Microsecond grade), arc extinguishing ability are higher, fundamentally inhibit lightning-caused breaking and circuit in insulated overhead line The generation of trip phenomenon.

In the anti-lightening protector 1 that this utility model embodiment is provided, electric discharge ring 12, lightning arrester body 11 and insulator portion 13 are located at same axle center.Wherein, the anchor ring of electric discharge ring 12 perpendicular to the axis of anti-lightening protector 1, put by the left electric discharge ring 121, right side 122 anchor ring of electric ring is parallel to each other, and lightning arrester body 11, insulator portion 13 and electric discharge ring 12 are all coaxial mounted, are prevented Thunder protector 1 is by uniform force during pulling force, so both functions with line tension insulator, have spark gap function, no again Fixed wire is pulled and supported with another dress strain insulator, it is also possible to individually make Transmission Line Arrestor use.This utility model embodiment will The electric discharge ring of traditional strain insulator parallel connection the air gap and side dress lightning arrester connected in parallel series gap has carried out reasonably optimizing, will Lightning arrester body 11, insulator portion 13 and electric discharge ring 12 these three core parts are designed to integration, and it is simultaneously simultaneous to make new construction Functional, the simple and beautiful structure of standby two kinds of traditional discharging gap structures, performance reliability.

Additionally, the anti-lightening protector 1 that this utility model embodiment is provided is using annular electric discharge 12 structure of ring, discharge type Traditional structure is different from, power frequency arc can be made not stay in a little upper burning, burning is likely on any position of ring body, Therefore the burning number of times of power frequency arc can be significantly improved, so as to the use longevity of electric discharge 1 entirety of ring 12 and anti-lightening protector can be improved Life.This utility model embodiment carries the electric discharge ring 12 of employing, installs more convenient, and gap good fixing effect is not easily susceptible to wind direction inclined From discharge performance is more stable.Because electric discharge ring 12 is in annular, under normal power-frequency voltage, in addition to discharging function is made Certain pressure shielding action is may also operate as, the voltage ageing life-span of insulator silicon rubber overcoat and full skirt can be delayed.

It is further to be provided with fixed structure on electric discharge ring 12, for discharging, ring 12 is removable to be fixed on insulation sub-portion Divide on 13, so that the distance between left electric discharge ring 121 and right electric discharge ring 122 are fixed as one of multiple predeterminable ranges, and the ring that discharges 12 can be around the rotation of 360 ° of the axis of insulator portion 13.

Electric discharge ring 12 be fixed on 13 two ends gold utensil of insulator portion it is cylindrical on, only need to loosen be fixed on it is tight on gold utensil external diameter Fixing bolt, it is possible to adjust discharging gap according to actual needs, and the ring 12 that discharges can be rotated with 360 °, therefore without worrying to put Electric device can deviate.

Used as a preferred version, lightning arrester body 11 connects as one structure with insulator portion 13, and each independent Using external insulation sleeve, each several part breaks down can be mutually unaffected.It is each own in lightning arrester body 11 and insulator portion 13 Insulation sleeve is protected, good seal performance, unaffected mutually.

In the present embodiment, the outer end of lightning arrester body 11 and insulator portion 13 is provided with connection gold utensil, so that lightning protection Protector 1 is connected laterally between cross arm of tower and high-tension line.

Certainly, in other embodiments, anti-lightening protector 1 is also not necessarily lateral connection, as long as it is phase and ground to determine Between, arbitrary closure can be selected.

Connection gold utensil in the present embodiment be in ball-and-socket joint, bulb joint, single ears gold utensil or earring-shaped gold utensil extremely Few one kind.According to actual needs, the combination in any of above gold utensil can be adopted, so as to meet various connected modes.

In sum, the anti-lightening protector 1 that this utility model embodiment is provided, efficiently solves power frequency continued flow length and circuit Two big main cause of Frequent trip, 11 problem of aging of lightning arrester body, and will be spark gap and strain insulator function two-in-one, between electric discharge Gap protection effect is good and adjustable, and ring discharge service life is longer, and connection gold utensil variation can meet different connections, safely may be used Lean on, structure optimization, good looking appearance.

Embodiment two：

As shown in Fig. 2 the present embodiment provides a kind of anti-lightening protector 1, its on the basis of embodiment one, in spark gap sheet Disconnector 14 is provided with body 11, disconnector 14 is exhausted for when lightning arrester body 11 or insulator portion 13 break down, making Edge subdivision 13 is departed from lightning arrester body 11.

Concrete mounting means is that disconnector 14 is connected with the screw rod stretched out inside lightning arrester body 11, and disconnector 14 is another One end is connected with electric discharge ring 12 by attachment structure 141, and attachment structure 141 is preferably hard connecting plate.

By increasing disconnector 14 in the present embodiment, when lightning arrester body 11 or insulator portion 13 break down, take off From device 14 all can action, faulty component has been entered and has been effectively isolated, now by depart from 14 devices isolation the air gap use, in a short time Can continue to play lightning protection effect, not affect circuit normally to run.After disconnector 14 effectively departs from, it may appear that obvious fracture mark Know, signal, easy access or replacing are sent to track walker in time.

In the present embodiment, disconnector 14 is connected by being Hard link, the disconnector 14 when lightning arrester body 11 breaks down Self-destruction, 141 position of attachment structure is barely affected.Compared to the connected mode of traditional annealed copper wire, easily put by wind, easily Short gap or ground connection, 14 stability of disconnector in the present embodiment are higher.

Embodiment three：

The present embodiment provides a kind of anti-lightening protector, and which is essentially identical with embodiment two, and its difference is：The present embodiment In, connection gold utensil is each correspondingly arranged on lightning arrester body and insulator portion, so that lightning arrester body releasable connection is exhausted Edge subdivision one end, i.e., using separate structure.

As shown in figure 3, lightning arrester body 11 is provided with connection gold utensil, and on insulator portion 13, also it is correspondingly arranged on connection Gold utensil, by connection gold utensil, can connect lightning arrester body 11 and insulator portion 13.When lightning arrester body 11 or insulator portion 13 when being damaged, because they are disconnected from each other, fault element of need to only changing just can be so that interchangeability is good, reduces line Road maintenance cost.Additionally, electric discharge ring 12 includes left electric discharge ring 121 and right electric discharge ring 122, the insulator of separate type is separately mounted to On 13 two ends gold utensil of part.

It is further that disconnector 14 is provided with lightning arrester body 11, disconnector 14 is in lightning arrester body 11 When breaking down, insulator portion 13 is made to depart from lightning arrester body 11.Stretch out inside disconnector 14 and lightning arrester body 11 Screw rod connects, and 14 other end of disconnector is connected with electric discharge ring 12 by attachment structure 141.Due to the spark gap in the present embodiment Body 11 and insulator portion 13 are separate structures, so attachment structure 141 both be able to can also be adopted using hard connecting plate With being flexible coupling.

By increasing disconnector 14 in the present embodiment, when lightning arrester body 11 or insulator portion 13 break down, take off From device 14 all can action, faulty component has been entered and has been effectively isolated, now by depart from 14 devices isolation the air gap use, in a short time Can continue to play lightning protection effect, not affect circuit normally to run.After disconnector 14 effectively departs from, it may appear that obvious fracture mark Know, signal, easy access or replacing are sent to track walker in time.

It should be noted that in the description of this utility model embodiment, term " " center ", " on ", D score, " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outward " is based on orientation shown in the drawings or position Relation, is for only for ease of description this utility model and simplifies description, rather than indicates or imply that the device or element of indication must Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

In addition, in the description of this utility model embodiment, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect Connect；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can Being the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in this utility model.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power The protection domain that profit is required is defined.

Claims (10)

1. a kind of anti-lightening protector, including lightning arrester body, insulator portion and electric discharge ring, it is characterised in that the spark gap Body passes through assembled in series with insulator portion；

The electric discharge ring includes left electric discharge ring and right electric discharge ring, is separately mounted on anti-lightening protector middle hardware and tail end gold utensil Or be separately mounted on the gold utensil of separating insulated subdivision two ends, air is formed between the left electric discharge ring and the right electric discharge ring Gap.

2. anti-lightening protector according to claim 1, it is characterised in that the anchor ring of the electric discharge ring is perpendicular to the lightning protection The axis of protector, the left and right electric discharge ring anchor ring is parallel to each other, the lightning arrester body, insulator portion and is put Electric ring is all coaxial mounted, uniform force during Tensile.

3. anti-lightening protector according to claim 2, it is characterised in that be provided with fixed structure on the electric discharge ring, uses In by the electric discharge, ring is removable is fixed on the insulator portion, so that between the left electric discharge ring and the right electric discharge ring Distance is fixed as one of multiple predeterminable ranges, and the electric discharge ring can be around the rotation of 360 ° of the axis of the insulator portion.

4. anti-lightening protector according to claim 1, it is characterised in that the lightning arrester body is connected with insulator portion It is structure as a whole, and each independently uses external insulation sleeve, each several part breaks down can be mutually unaffected.

5. anti-lightening protector according to claim 1, it is characterised in that the lightning arrester body is each with insulator portion From connection gold utensil is correspondingly arranged on, so that the lightning arrester body releasable connection is in described insulator portion one end.

6. anti-lightening protector according to claim 1, it is characterised in that the lightning arrester body and insulator portion it is outer End is provided with connection gold utensil, so that the anti-lightening protector is connected laterally between cross arm of tower and high-tension line.

7. the anti-lightening protector according to claim 5 or 6, it is characterised in that the connection gold utensil is ball-and-socket joint, bulb At least one in joint, single ears gold utensil or earring-shaped gold utensil.

8. anti-lightening protector according to claim 1, it is characterised in that be provided with disconnector on the lightning arrester body, The disconnector for when the lightning arrester body or insulator portion break down with the lightning arrester body depart from.

9. anti-lightening protector according to claim 8, it is characterised in that inside the disconnector and the lightning arrester body The screw rod for stretching out connects, and the other end is connected with the electric discharge ring by attachment structure.

10. anti-lightening protector according to claim 9, it is characterised in that the attachment structure is in integral structure For hard connecting plate, for hard connecting plate or can be flexible coupling in separate structure.