CN104701741A - Combination cutter - Google Patents
Combination cutter Download PDFInfo
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- CN104701741A CN104701741A CN201510069068.XA CN201510069068A CN104701741A CN 104701741 A CN104701741 A CN 104701741A CN 201510069068 A CN201510069068 A CN 201510069068A CN 104701741 A CN104701741 A CN 104701741A
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- Prior art keywords
- arc extinguishing
- arc
- triggering
- magazine
- counter
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- 238000002360 preparation method Methods 0.000 claims abstract description 42
- 238000003860 storage Methods 0.000 claims abstract description 39
- 239000012212 insulator Substances 0.000 claims abstract description 23
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- 238000003825 pressing Methods 0.000 claims description 39
- 230000009471 action Effects 0.000 claims description 20
- 230000006698 induction Effects 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000008033 biological extinction Effects 0.000 abstract description 11
- 238000010891 electric arc Methods 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 18
- 230000001960 triggered effect Effects 0.000 description 12
- 208000025274 Lightning injury Diseases 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
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- 230000018109 developmental process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 208000037805 labour Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a combination cutter. The combination cutter comprises an arc extinction device with multiple breaks and a horizontal type arc extinction device, which are fixedly installed at two ends of an insulator respectively through a connection armor clamp I and a connection armor clamp II, wherein an arc extinction route composed of multiple segments of arc extinction channels and arranged in Z-shaped circulation mode is arranged on a main body of the arc extinction device with the multiple breaks, a left side bullet storage bin, a right side bullet storage bin and an arc strike electrode II are arranged in the horizontal type arc extinction device, vertical rails used to transversely place arc extinction gas bullets are arranged in the left side bullet storage bin and the right side bullet storage bin, a preparation rail in a slope shape is arranged at the bottom of each vertical rail, and a gas bullet trigger position is arranged at the tail end of each preparation rail. The combination cutter is simple in structure, reasonable in design, strong in arc extinction ability, stable and reliable in work, capable of counting, and convenient to maintain and replace in a later period.
Description
Technical Field
The invention relates to a lightning protection device of a power transmission line, in particular to a combined interceptor.
Background
Lightning is an important factor influencing the safety of a transmission line, occupies the first place of line fault tripping for a long time, is a natural process of atmospheric activity, and is not controllable so far. However, the lightning stroke rule can be searched by analyzing the frequent accidents, and the prevention is enhanced. For example, towers on high mountains and mountains or on the top of a peak, power transmission lines near ponds or reservoirs, towers crossing mountains or rivers and lakes, towers with high ground resistance, rock towers, power transmission lines and the like are all important points which are easy to be damaged by lightning.
Lightning strike can bring different forms of damage and destruction to electric power facilities, lightning strike overvoltage can be caused in an electric power system by thundercloud discharge, and common overvoltage in an overhead line comprises overvoltage of lightning strike near the overhead line on a power transmission line through electromagnetic induction and overvoltage generated by lightning striking on a wire directly. Lightning stroke causes overvoltage, and can damage insulators and power transmission lines; lightning stroke causes flashover discharge of the insulator, can cause burning and shedding on the surface of porcelain or reticular cracks on the glass insulator, and greatly reduces the insulating strength; lightning strikes on a power transmission line or a lightning conductor can cause strand breakage and even breakage, so that power transmission work cannot be carried out.
Lightning protection of a power transmission line is always important content of lightning protection work of a power department, and lightning faults are still one of important factors influencing the safety of a power grid. Impact flashover caused by lightning strike on a power transmission line causes flashover of a line insulator, then large power frequency follow current is generated, an insulator string and hardware fittings are damaged, and line accidents are caused. The protection of the power department is generally realized by additionally arranging a line lightning protector on a power transmission line.
The arc is a high-temperature high-conductivity free gas, and is extinguished, which is referred to as arc extinction for short. There are several methods for arc extinction, most of which use some kind of gas or liquid to undertake the main arc extinction.
The lightning protector is an electrical device which can release lightning or release overvoltage energy for operating an electric power system, protect electrical equipment from being damaged by instantaneous overvoltage, cut off follow current and avoid causing system grounding short circuit.
For example, the patent No. 201110090288.2 discloses a 10-35 kV overhead transmission line constraint space gas jet arc extinguishing lightning protection gap device suitable for 10-35 kV overhead transmission lines, and for example, the patent No. 200710066259.6 discloses a constraint space gas jet arc extinguishing lightning protection gap device for transmission lines of various voltage classes, which are both installed in parallel at two ends of a line insulator string, and the flashover voltage between protection gaps is smaller than that of the protected insulator string, so that the transmission line is punctured prior to the protected insulator string when being struck by lightning, and when the power is discharged by the breakdown, the gas production material in the constraint space is rapidly heated by high-temperature electric arc to produce high-pressure gas, and the signal acquisition device automatically acquires signals and starts the gas jet generation device, and instantly generates high-speed gas flow to impact the electric arc along the longitudinal direction, and cools to extinguish the electric arc, and.
For a different voltage class segmentation arc extinguishing lightning protection gap device storehouse that patent number is 201310297789.7 discloses, adopted discoid arc extinguishing to store up the magazine, can place a large amount of shots that can produce gas and carry out the arc extinguishing after triggering, and make the arc extinguishing shot closely arrange in the storage bullet track of magazine I is stored up in the arc extinguishing through the torsion effect of flat spiral spring for after current arc extinguishing shot triggered and falls, next can get into the shot and trigger the position automatically, realize moving the bullet automatically. Although the defects of few arc extinguishing projectiles and few effective arc extinguishing times in the prior art are overcome, the counting function is not provided.
Like patent No. 201120391471.1 discloses a simple and easy counter for arrester, including arrester action collection module, electronic switch, singlechip and display, arrester action collection module includes a photoelectric coupler, the switch contact of the heavy current discharge protection device on the arrester is connected to photoelectric coupler's input, its output connects gradually a wave filter and two schmitt phase inverters and is connected to electronic switch's trigger point, electronic switch's signal output part connects singly, the input of mascerating machine, the display is connected to the output of singlechip, this patent manufacturing cost is higher.
The patent No. 201410115787.6 discloses a discharge counter for a line arrester, which comprises a casing, a glass sealing cover, a valve plate, a silicon bridge rectifier, a capacitor, an electromagnetic counter and a display screen, wherein the glass sealing cover is a convex spherical glass sealing cover, and the digital outer surface of the display screen is covered with a fluorescent layer. The counter glass sealing cover is changed into convex spherical glass to further increase the digital display effect, but the capability of resisting natural disasters is weaker.
Although above patent has played certain arc extinguishing guard action to the lightning protection, still some are not enough, for example, to multiple thunder, the arc extinguishing effect is too little obvious, exists the phenomenon of relighting etc. and the volume of the counter that discharges moreover is great, is difficult to install in some specific occasions, and the jam-proof ability is weak, produces the error count easily, and data can not save, needs artifical record, extravagant a large amount of labours.
Disclosure of Invention
The invention aims to provide a combined interceptor which has the advantages of simple structure, reasonable design, strong arc extinguishing capability and stable and reliable work, aiming at the defects of the prior art. The combined interceptor is characterized in that a multi-fracture arc extinguishing device and a horizontal arc extinguishing device are respectively arranged at two ends of an insulator string to form a protection gap; the multi-fracture arc extinguishing device is internally provided with a Z-shaped arc extinguishing path to form a plurality of arc striking outlets, so that the arc extinguishing can be guaranteed on the basis of reducing the size of the device, and the multi-thread hardware fitting is fixedly installed, so that the multi-thread hardware fitting cannot rotate or be dislocated in natural disastrous weather such as typhoon; the horizontal arc extinguishing device has the advantages that the storage capacity of arc extinguishing gas pills in the horizontal arc extinguishing device is large, and the arc extinguishing gas pills can automatically slide downwards and advance under the action of self gravity by arranging the vertical tracks, transversely arranging the arc extinguishing gas pills, improving the appearance structure of the arc extinguishing gas pills and the like; the multi-fracture arc extinguishing device and the horizontal arc extinguishing device are matched with each other to act for arc extinguishing, and the arc extinguishing effect is good. Meanwhile, the counter is matched with the arc extinguishing device, so that the device can be prepared in advance when needing to be replaced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combined interceptor comprises a multi-fracture arc extinguishing device and a transverse arc extinguishing device which are fixedly arranged at two ends of an insulator through a connecting hardware fitting I and a connecting hardware fitting II respectively; the multi-fracture arc extinguishing device comprises a device main body and an arc striking electrode I; the arc striking electrode I is fixedly arranged at one end of the device main body and points to the horizontal arc extinguishing device, and the other end of the device main body is fixedly arranged at one end of the insulator through the connecting hardware fitting I; the device main body is provided with an arc extinguishing path which consists of a plurality of arc extinguishing channels and is circularly arranged in a Z shape; copper blocks are arranged at the joints of every two adjacent arc extinguishing channels, two arc extinguishing tubes are arranged in each section of arc extinguishing channel, and an arc guide ball is arranged between the two arc extinguishing tubes; an arc extinguishing tube at the inlet of a first section of arc extinguishing channel of the arc extinguishing path is connected with an arc striking electrode I through an arc guide rod, and an arc extinguishing tube at the outlet of a last section of arc extinguishing channel is connected with a connecting hardware fitting I through a lead;
the inside of the transverse arc extinguishing device is provided with a left side magazine, a right side magazine and an arc striking electrode II; the left side magazine and the right side magazine are both provided with vertical rails for transversely discharging arc extinguishing gas pills, and the bottoms of the vertical rails are respectively provided with a slope-shaped preparation rail I and a slope-shaped preparation rail II; the tail end of a preparation track I of the left magazine is provided with an air shot triggering position I, two sides of the air shot triggering position I are respectively provided with a triggering electrode I, and the triggering electrodes I are connected with an induction coil I used for collecting lightning pulse electrical signals; an air shot triggering position II is arranged at the tail end of a preparation track II of the right magazine, triggering electrodes II are respectively arranged on two sides of the air shot triggering position II, and the triggering electrodes II are connected with an induction coil II used for collecting lightning pulse electrical signals; and one end of the arc striking electrode II is connected with the connecting hardware fitting II, and the other end of the arc striking electrode II sequentially penetrates through the induction coil II and the induction coil I to extend to a position near the gas pill triggering position I and the gas pill triggering position II and points to the arc striking electrode I of the multi-fracture arc extinguishing device.
In the invention, the multi-fracture arc extinguishing device and the transverse arc extinguishing device which can independently extinguish arc are respectively arranged at the two ends of the insulator string, so that the arc extinguishing capability is greatly enhanced, the development of arc energy can be deeply inhibited, the phenomena that the arc is not easily extinguished and can be re-ignited in partial strong lightning areas and partial multiple lightning areas are effectively solved, the safety of a power transmission line is ensured, and the stable work can be realized; and after the arc extinguishing gas pill of the horizontal arc extinguishing device is used up, if the arc extinguishing gas pill is not replenished in time, the multi-fracture arc extinguishing device can also perform arc extinguishing, and the safety of the power transmission line is protected to the greatest extent. According to the multi-fracture arc extinguishing device, the Z-shaped arc extinguishing path is arranged in the device main body, so that the arc extinguishing path is prolonged, the arc is stretched and refined, and the multi-fracture arc extinguishing device is provided with a plurality of outlet breakpoints, so that the arc is easier to extinguish and is not re-combusted; be equipped with the copper billet at the junction of two liang of adjacent arc extinguishing passageways, can effectual injecing electric arc route, guarantee that electric arc carries out flashover according to the arc extinguishing route of setting for, improve lightning protection device's arc extinguishing performance. The horizontally-arranged arc extinguishing device divides the inner space into two bullet storage bins, vertical rails are arranged in the bullet storage bins, and arc extinguishing gas pills are transversely discharged onto the vertical rails, so that the storage amount of the arc extinguishing gas pills in the bullet storage bins can be greatly increased, and the inclined preparation rails are arranged at the bottoms of the vertical rails, so that the arc extinguishing gas pills can conveniently slide down to a triggering position; and the trigger electrodes are respectively arranged on two sides of the trigger position, so that the former structure (one trigger electrode is arranged on the top of the trigger position, and the other trigger electrode is arranged on the side surface) is optimized, arc extinguishing gas pills can conveniently enter the trigger position, and the arc extinguishing gas pills and the trigger electrodes can form more reliable electric connection.
As a further explanation of the present invention, the height difference exists between the gas-pill triggering position i and the gas-pill triggering position ii in the above-mentioned horizontal arc extinguishing device. Therefore, the phenomenon that two arc extinguishing gas pills are clamped in the arc extinguishing cylinder due to the fact that the arc extinguishing gas pills on the two sides are almost triggered simultaneously in multiple lightning strokes can be prevented.
As a further explanation of the invention, the horizontal arc-extinguishing device further comprises a digital counter i and a digital counter ii which are respectively and fixedly arranged on the outer surface of the horizontal arc-extinguishing device; a counting pressing point I is arranged on a preparation track I of the left magazine and is connected with a driving shaft of a digital counter I through a connecting rod; and a counting pressing point II is arranged on a preparation track II of the right magazine and is connected with a driving shaft of the digital counter II through a connecting rod.
Two counters are added, and the triggering actions of the left magazine and the right magazine are counted respectively, so that maintenance personnel can visually know the residual quantity of arc extinguishing gas pills in the magazines, and the preparation for replacing devices or supplementing arc extinguishing gas pills is facilitated to be made in advance. And when the arc extinguishing gas pill rolls and slides off, the arc extinguishing gas pill passes through the counting pressing point, and the pointer of the digital counter moves one grid, so that the number of times is counted.
As a further illustration of the present invention, the arc extinguishing gas pill described above is provided with a housing; the shell is provided with two notches which are symmetrically designed and are in an inverted V shape, and the tops of the notches are provided with connecting electrodes; the arc extinguishing gas pill is located at the gas pill triggering position I or the gas pill triggering position II, and the connecting electrode of the arc extinguishing gas pill is connected with the triggering electrode I or the triggering electrode II to form a triggering loop I or a triggering loop II. Specifically, when the arc extinguishing gas pill enters the gas pill triggering position from the preparation track, the notch on the shell of the arc extinguishing gas pill is supported by the triggering electrode, the arc extinguishing gas pill slides downwards horizontally to enter the gas pill triggering position vertically under the action of the self gravity of the arc extinguishing gas pill, and the connecting electrode of the arc extinguishing gas pill is in reliable contact with the triggering electrode of the gas pill triggering position. The inverted V-shaped gap can enable the arc extinguishing gas pill to freely rotate when being supported by the trigger electrode and further move downwards until the trigger electrode supports the top of the gap and forms reliable contact connection with the connecting electrode of the arc extinguishing gas pill. The bottom ends of the two inverted V-shaped gaps are connected, namely the remained shell part is in a V shape.
As a further explanation of the invention, more than two rows of vertical tracks of the left magazine and/or the right magazine are provided, and every two vertical tracks of the same magazine are separated by a rotatable baffle. The vertical tracks are provided with a plurality of rows, when the last arc extinguishing gas pill in the first row of vertical tracks rolls down to the gas pill triggering position, the rotatable baffle between the first row of vertical tracks and the second row of vertical tracks is pushed to one side by the arc extinguishing gas pills in the second row of vertical tracks, the arc extinguishing gas pills in the second row of vertical tracks start to enter the preparation tracks, and after the arc extinguishing gas pills in the gas pill triggering position are triggered, the arc extinguishing gas pills roll down to the gas pill triggering position in sequence to wait for triggering; the latter arc extinguishing gas pellets of the vertical rail move in the same way.
As a further explanation of the present invention, the upper end of the rotatable baffle described above is hinged to the housing of the horizontal arc extinguishing device.
As a further explanation of the invention, the counting pressing point i in the left magazine is connected in series with the trigger circuit ii in the right magazine, and when the arc extinguishing gas pill enters the preparation track i and presses the counting pressing point i, the trigger circuit ii in the right magazine is in a disconnected state; after the arc extinguishing gas ball that is in gas ball trigger position I triggers the action, break away from gas ball trigger position I, subsequent arc extinguishing gas ball begins to roll the gliding, and the count is pressed point I and is obtained the release, and trigger circuit II in the right side storage magazine is in and switches on the state of waiting to trigger, and the next arc extinguishing gas ball that stores up in the magazine on the left side gets into gas ball trigger position I, and the count is pressed point I and is extrudeed by arc extinguishing gas ball, and trigger circuit II resumes off-state.
As another aspect of the present invention, the trigger circuit i and the trigger circuit ii are locked to each other. When the trigger circuit on one side is to be triggered, the trigger circuit on the other side is short-circuited; when the trigger loop at one side carries out trigger action, the trigger loop at the other side instantly enters a state to be triggered; therefore, when the lightning stroke gap is short, the corresponding arc extinguishing gas pill can be ensured to trigger to perform gas blast arc extinguishing.
As a further illustration of the present invention, the multi-break arc extinguishing device described above further comprises a small ball counter; the small ball counter mainly comprises a small ball storage device and counting small balls placed in the small ball storage device; the outlet of the small ball storage device corresponds to the outlet of the last section of the arc extinguishing channel. When the multi-fracture arc-extinguishing device acts, the outlet of the last arc-extinguishing channel still has strong airflow to blow out, so that the counting small balls at the outlet of the small ball storage device can be blown out.
As a further explanation of the present invention, the above-mentioned ball counter is a spiral counter, a vertical counter or a pressing and elastic counter; when the small ball counter is a spiral counter, a small ball storage device of the spiral counter is spirally arranged on a device main body of the multi-fracture arc extinguishing device; when the small ball counter is a pressing and ejecting type counter, the pressing and ejecting type counter is installed at the bottom of the device main body of the multi-fracture arc extinguishing device through the fixed outer ring, and a spring is arranged inside the small ball storage device.
As a further explanation of the invention, a baffle is arranged at the outlet of the small ball storage device; the baffle can prevent the counting small ball from automatically falling off when the lightning protection device does not act. The counting beads are marked with different colors or numbers. The counting balls can be placed in a mode of being perpendicular to the fixed outer ring or being parallel to the fixed outer ring, when the device acts once, the balls at the outlet are blown out one by one, the compressed spring pushes the counting balls beside the outlet into the outlet, and the counting balls carry in to wait for the next action.
As a further explanation of the invention, a nut i is arranged in the bottom of the device main body of the multi-fracture arc-extinguishing device; the outer surface of the connecting hardware fitting I is provided with external threads, and the external nut is adopted to compress the fixing piece and is in threaded connection with the nut I inside the device main body. Place the stationary blade between the nut, when can guaranteeing the action of multifracture arc extinguishing device, electric arc walking path is the nut surface, and inside screw thread prevents that inside screw thread from damaging to lead to the multifracture arc extinguishing device to drop. Adopt threaded connection mode, can guarantee the firm connection of multifracture arc control device, even still can not rotate or misplace under bad natural disasters weather such as typhoon.
As a further explanation of the present invention, the device main body of the multi-fracture arc extinguishing device described above is made of hydrophobic material, and the outer surface of the device main body is provided with an umbrella skirt; the arc striking electrode I is a graphite electrode; the arc-guiding ball is a graphite ball or a copper ball; the arc extinguishing tube is a thin ceramic tube; through holes are arranged on two sides of the copper block. The multi-fracture arc extinguishing device made of hydrophobic materials enables each arc extinguishing channel inlet and outlet inside to still reliably act even if media such as water enter the inlet and outlet.
As a further explanation of the present invention, the above-mentioned horizontal type arc-extinguishing device is provided with a bearing rod, one end of the bearing rod extends into the horizontal type arc-extinguishing device, and a coulomb disc is arranged at the end of the bearing rod. Through the bearing rod, the transverse arc extinguishing device can be fixedly installed at one end of the insulator string or on the cross arm.
The working process (working principle) of the invention is as follows:
when the power transmission line is struck by lightning, the lightning breaks through the protection gap, and when an arc flashover occurs, the multi-fracture arc-extinguishing device leads the arc into a Z-shaped arc-extinguishing path in the device main body through the arc-striking electrode (due to the arc-striking action of the copper block and the arc-guiding ball, the arc path is specified, and the arc flashover cannot occur from the surface of the device main body); when the electric arc passes through each arc extinguishing channel in the arc extinguishing path, the arc extinguishing tube in the arc extinguishing channel generates strong airflow due to high temperature, blows and pulls the inflection point of the electric arc, stretches and refines the electric arc again, and enables the electric arc to be blown out more easily and not to be re-ignited. And a small ball counter arranged at the outlet of the arc extinguishing path counts small balls, and the small balls are blown out by strong airflow and fall off, so that the statistics of the action times is realized. That is, the multi-break arc extinguishing device of the invention is triggered by the lightning pulse, preferentially attracts, controls and changes the development track of the lightning impulse arc, so that after the impulse arc is strongly compressed and bent by the arc extinguishing tube, a very high axial pressure gradient is generated in the arc extinguishing tube, the arc is ejected from the inside of the arc extinguishing tube to the outside, the arc generates breaks at multiple points, and a large-scale sectional arc in the integral arc extinguishing structure is formed, thereby the arc energy is weakened, and the arc is extinguished.
Meanwhile, the transverse arc extinguishing device adopts an internal symmetrical integral streamline structure, arc extinguishing gas pills are arranged on the vertical rail and the slope-shaped preparation rail in a one-shot mode, and a first arc extinguishing gas pill enters the gas pill triggering position in a turnover mode under the action of gravity to wait for triggering; and when the arc extinguishing gas pill on one side is triggered, the arc extinguishing gas pill on the other side is in a state to be triggered. When the lightning pulse passes through the coil, the coil induces current to trigger the arc extinguishing gas pill, the arc extinguishing gas pill generates huge airflow to cut off the electric arc, so that the temperature of the electric arc is reduced, the energy of the electric arc cannot be fully supplied, and the electric arc is extinguished; the latter arc extinguishing gas pill is in place in a mode that the first arc extinguishing gas pill reaches the gas pill triggering position, and the next lightning stroke is waited for to trigger.
The invention has the advantages that:
1. simple structure, reasonable design, more storage capacity of arc extinguishing gas pills, strong arc extinguishing capability and stable and reliable work. The invention combines the multi-fracture arc extinguishing device and the transverse arc extinguishing device for use, and performs arc extinguishing action on two sides of the electric arc simultaneously, thereby effectively inhibiting the electric arc and achieving the protection effect even if strong lightning strike or transient multiple lightning strike occurs. The arc extinguishing path that is Z shape circulation and arranges is set up in the device main part of multifracture arc control device inside, and has set up copper billet and arc guide ball, has effectively injectd the route of electric arc, and the guarantee electric arc is through drawing the inflation many times, and electric arc forms the multiple break point, extinguishes rapidly and does not take place the phenomenon of relighting. The interior of the transverse arc-extinguishing device adopts a symmetrical integral streamline structure, and arc-extinguishing gas pills can be placed on both sides of the transverse arc-extinguishing device; set up the preparation track of vertical formula track and slope in storage bullet storehouse, transversely discharge arc extinguishing gas ball again, not only under the unchangeable condition of device main part size, it is many to have increased the memory space of arc extinguishing gas ball, utilizes the self gravity of arc extinguishing gas ball moreover, can realize that arc extinguishing gas ball gliding to gas ball triggers the position, need not increase power unit in addition again, has greatly optimized the inside structure of device main part.
2. Can count, is convenient for later maintenance and replacement. A small ball counter is arranged at the outlet of the arc extinguishing path, and one counting small ball is blown down through one action; a digital counter and a counting pressing point are arranged on the horizontal arc-extinguishing device, and the triggering action times of the arc-extinguishing gas pill are also recorded. Therefore, maintenance personnel can quickly and visually know the action times, the current action times, the residual action times and the like, the lightning protection device is convenient to replace and maintain in time, and the working continuity of the lightning protection device is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a multi-break arc extinguishing device according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an arc extinguishing path in the multi-break arc extinguishing device according to an embodiment of the invention.
Fig. 4 is a schematic diagram of an arc path in a multi-break arc extinguishing device in accordance with an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a horizontal arc extinguishing device according to an embodiment of the invention.
Reference numerals:
1-insulator, 2-multi-fracture arc extinguishing device, 3-horizontal arc extinguishing device, 201-device body, 202-arc striking electrode I, 203-copper block, 204-arc extinguishing path, 205-umbrella skirt, 206-fixed outer ring, 207-small ball storage device, 208-counting small ball, 209-spring, 210-arc extinguishing channel, 211-arc guiding ball, 212-arc extinguishing tube, 301-vertical track, 302-rotatable baffle, 303-arc extinguishing gas ball, 304-counting pressing point I, 305-digital counter I, 306-trigger electrode I, 307-gas ball triggering position I, 308-arc striking electrode II, 309-gas ball triggering position II, 310-trigger electrode II, 311-digital counter II, 312-counting pressing point II, 313-induction coil I, 314-induction coil II, 315-bearing bar, 316-coulomb disc.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-5, a combined interceptor comprises a multi-fracture arc extinguishing device 2 and a horizontal arc extinguishing device 3 which are fixedly arranged at two ends of an insulator 1 through a connecting hardware fitting I and a connecting hardware fitting II respectively; wherein,
the multi-fracture arc extinguishing device 2 comprises a device main body 201 and an arc striking electrode I202; the arc ignition electrode I202 is fixedly arranged at one end of the device main body 201 and points to the horizontal arc extinguishing device 3, and the other end of the device main body 201 is fixedly arranged at one end of the insulator 1 through the connecting hardware fitting I; the device main body 201 is provided with an arc extinguishing path 204 which consists of a plurality of arc extinguishing channels 210 and is arranged in a Z-shaped circulation manner; the copper blocks 203 are arranged at the joints of every two adjacent arc extinguishing channels 210, two arc extinguishing tubes 212 are arranged in each arc extinguishing channel 210, and an arc guiding ball 211 is arranged between the two arc extinguishing tubes 212; an arc extinguishing tube at the inlet of a first section of arc extinguishing channel of the arc extinguishing path 204 is connected with an arc striking electrode I202 through an arc guide rod, and an arc extinguishing tube at the outlet of a last section of arc extinguishing channel is connected with a connecting hardware fitting I through a lead;
a left side magazine, a right side magazine and an arc striking electrode II 308 are arranged in the transverse arc extinguishing device 3; the left side magazine and the right side magazine are both provided with vertical rails 301 for transversely discharging arc extinguishing gas pills 303, and the bottom of each vertical rail 301 is provided with a slope-shaped preparation rail I and a slope-shaped preparation rail II; an air shot triggering position I307 is arranged at the tail end of a preparation track I of the left magazine, triggering electrodes I306 are respectively arranged on two sides of the air shot triggering position I307, and the triggering electrodes I306 are connected with an induction coil I313 used for collecting lightning pulse electric signals; an air shot triggering position II 309 is arranged at the tail end of a preparation track II of the right magazine, triggering electrodes II 310 are respectively arranged on two sides of the air shot triggering position II 309, and the triggering electrodes II 310 are connected with an induction coil II 314 used for collecting lightning pulse electric signals; one end of the arc striking electrode II 308 is connected with the connecting hardware fitting II, and the other end of the arc striking electrode II passes through the induction coil II 314 and the induction coil I313 in sequence to extend to a position near a position between the gas-pill triggering position I307 and the gas-pill triggering position II 309 and point to the arc striking electrode I202 of the multi-fracture arc extinguishing device 2.
The horizontal arc extinguishing device 3 further comprises a digital counter I305 and a digital counter II 311 which are fixedly arranged on the outer surface of the horizontal arc extinguishing device 3 respectively; a counting pressing point I304 is arranged on a preparation track I of the left magazine, and the counting pressing point I304 is connected with a driving shaft of a digital counter I305 through a connecting rod; and a counting pressing point II 312 is arranged on a preparation track II of the right magazine, and the counting pressing point II 312 is connected with a driving shaft of a digital counter II 311 through a connecting rod.
The arc extinguishing gas pill 303 is provided with a shell; the shell is provided with two notches which are symmetrically designed and are in an inverted V shape, and the tops of the notches are provided with connecting electrodes; the arc extinguishing gas pill 303 is located at a gas pill triggering position I307 or a gas pill triggering position II 309, and a connecting electrode of the arc extinguishing gas pill 303 is connected with a triggering electrode I306 or a triggering electrode II 310 to form a triggering circuit I or a triggering circuit II. The counting pressing point I304 in the left magazine is connected in series with the trigger circuit II in the right magazine, and when the arc extinguishing gas pill 303 enters the preparation track I and presses the counting pressing point I304, the trigger circuit II in the right magazine is in a disconnected state; after the arc extinguishing gas pill 303 at the gas pill triggering position I307 is triggered, the arc extinguishing gas pill is separated from the gas pill triggering position I307, the subsequent arc extinguishing gas pill 303 starts to roll and slide downwards, the counting pressing point I304 is released, the triggering loop II in the right-side magazine is in a conducting state to be triggered until the next arc extinguishing gas pill 303 in the left-side magazine enters the gas pill triggering position I307, the counting pressing point I304 is extruded by the arc extinguishing gas pill 303, and the triggering loop II is in a recovery off state.
The vertical tracks 301 of the left magazine and/or the right magazine are provided with three rows, and every two vertical tracks of the same magazine are separated by a rotatable baffle 302. The upper end of the rotatable baffle 302 is hinged on the housing of the transverse arc-extinguishing device 3.
The multi-fracture arc extinguishing device 2 also comprises a small ball counter; the ball counter mainly comprises a ball storage 207 and a counting ball 208 arranged in the ball storage 207; the outlet of the ball storage 207 corresponds to the outlet of the last arc extinguishing channel. The small ball counter is a pressing and elastic counter; the said press-spring type counter is installed at the bottom of the apparatus main body 201 of the multi-break arc extinguishing apparatus 2 through the fixed outer ring 206, and the spring 209 is provided inside the small ball storage 207.
A nut I is arranged in the bottom of the device main body 201 of the multi-fracture arc extinguishing device 2; the surface of link fitting I be equipped with the external screw thread to adopt external nut to compress tightly nut I that stationary blade and device main part 201 are inside to carry out threaded connection. The device main body 201 of the multi-fracture arc extinguishing device 2 is made of hydrophobic materials, and the outer surface of the device main body 201 is provided with an umbrella skirt 205; the arc ignition electrode I202 is a graphite electrode; the arc-guiding ball 211 is a graphite ball or a copper ball; the arc extinguishing tube 212 is a thin ceramic tube; through holes are arranged on two sides of the copper block 203.
The transverse arc-extinguishing device 3 is provided with a bearing rod 315, one end of the bearing rod 315 extends into the transverse arc-extinguishing device 3, and a coulomb disc 316 is arranged at the tail end of the bearing rod 315.
Example 2:
a combined interceptor comprises a multi-fracture arc extinguishing device 2 and a transverse arc extinguishing device 3 which are fixedly arranged at two ends of an insulator 1 through a connecting hardware fitting I and a connecting hardware fitting II respectively; wherein,
the multi-fracture arc extinguishing device 2 comprises a device main body 201 and an arc striking electrode I202; the arc ignition electrode I202 is fixedly arranged at one end of the device main body 201 and points to the horizontal arc extinguishing device 3, and the other end of the device main body 201 is fixedly arranged at one end of the insulator 1 through the connecting hardware fitting I; the device main body 201 is provided with an arc extinguishing path 204 which consists of a plurality of arc extinguishing channels 210 and is arranged in a Z-shaped circulation manner; the copper blocks 203 are arranged at the joints of every two adjacent arc extinguishing channels 210, two arc extinguishing tubes 212 are arranged in each arc extinguishing channel 210, and an arc guiding ball 211 is arranged between the two arc extinguishing tubes 212; an arc extinguishing tube at the inlet of a first section of arc extinguishing channel of the arc extinguishing path 204 is connected with an arc striking electrode I202 through an arc guide rod, and an arc extinguishing tube at the outlet of a last section of arc extinguishing channel is connected with a connecting hardware fitting I through a lead;
a left side magazine, a right side magazine and an arc striking electrode II 308 are arranged in the transverse arc extinguishing device 3; the left side magazine and the right side magazine are both provided with vertical rails 301 for transversely discharging arc extinguishing gas pills 303, and the bottom of each vertical rail 301 is provided with a slope-shaped preparation rail I and a slope-shaped preparation rail II; an air shot triggering position I307 is arranged at the tail end of a preparation track I of the left magazine, triggering electrodes I306 are respectively arranged on two sides of the air shot triggering position I307, and the triggering electrodes I306 are connected with an induction coil I313 used for collecting lightning pulse electric signals; an air shot triggering position II 309 is arranged at the tail end of a preparation track II of the right magazine, triggering electrodes II 310 are respectively arranged on two sides of the air shot triggering position II 309, and the triggering electrodes II 310 are connected with an induction coil II 314 used for collecting lightning pulse electric signals; one end of the arc striking electrode II 308 is connected with the connecting hardware fitting II, and the other end of the arc striking electrode II passes through the induction coil II 314 and the induction coil I313 in sequence to extend to a position near a position between the gas-pill triggering position I307 and the gas-pill triggering position II 309 and point to the arc striking electrode I202 of the multi-fracture arc extinguishing device 2.
The horizontal arc extinguishing device 3 further comprises a digital counter I305 and a digital counter II 311 which are fixedly arranged on the outer surface of the horizontal arc extinguishing device 3 respectively; a counting pressing point I304 is arranged on a preparation track I of the left magazine, and the counting pressing point I304 is connected with a driving shaft of a digital counter I305 through a connecting rod; and a counting pressing point II 312 is arranged on a preparation track II of the right magazine, and the counting pressing point II 312 is connected with a driving shaft of a digital counter II 311 through a connecting rod.
The arc extinguishing gas pill 303 is provided with a shell; the shell is provided with two notches which are symmetrically designed and are in an inverted V shape, and the tops of the notches are provided with connecting electrodes; the arc extinguishing gas pill 303 is located at a gas pill triggering position I307 or a gas pill triggering position II 309, and a connecting electrode of the arc extinguishing gas pill 303 is connected with a triggering electrode I306 or a triggering electrode II 310 to form a triggering circuit I or a triggering circuit II. The counting pressing point I304 in the left magazine is connected in series with the trigger circuit II in the right magazine, and when the arc extinguishing gas pill 303 enters the preparation track I and presses the counting pressing point I304, the trigger circuit II in the right magazine is in a disconnected state; after the arc extinguishing gas pill 303 at the gas pill triggering position I307 is triggered, the arc extinguishing gas pill is separated from the gas pill triggering position I307, the subsequent arc extinguishing gas pill 303 starts to roll and slide downwards, the counting pressing point I304 is released, the triggering loop II in the right-side magazine is in a conducting state to be triggered until the next arc extinguishing gas pill 303 in the left-side magazine enters the gas pill triggering position I307, the counting pressing point I304 is extruded by the arc extinguishing gas pill 303, and the triggering loop II is in a recovery off state.
The vertical tracks 301 of the left magazine and/or the right magazine are provided with two rows, and every two vertical tracks of the same magazine are separated by a rotatable baffle 302. The upper end of the rotatable baffle 302 is hinged on the housing of the transverse arc-extinguishing device 3.
The multi-fracture arc extinguishing device 2 also comprises a small ball counter; the ball counter mainly comprises a ball storage 207 and a counting ball 208 arranged in the ball storage 207; the outlet of the ball storage 207 corresponds to the outlet of the last arc extinguishing channel. The small ball counter is a spiral counter; the small ball storage 207 of the spiral counter is spirally arranged on the device main body 201 of the multi-fracture arc extinguishing device 2;
a nut I is arranged in the bottom of the device main body 201 of the multi-fracture arc extinguishing device 2; the surface of link fitting I be equipped with the external screw thread to adopt external nut to compress tightly nut I that stationary blade and device main part 201 are inside to carry out threaded connection. The device main body 201 of the multi-fracture arc extinguishing device 2 is made of hydrophobic materials, and the outer surface of the device main body 201 is provided with an umbrella skirt 205; the arc ignition electrode I202 is a graphite electrode; the arc-guiding ball 211 is a graphite ball or a copper ball; the arc extinguishing tube 212 is a thin ceramic tube; through holes are arranged on two sides of the copper block 203.
Example 3:
a combined interceptor comprises a multi-fracture arc extinguishing device 2 and a transverse arc extinguishing device 3 which are fixedly arranged at two ends of an insulator 1 through a connecting hardware fitting I and a connecting hardware fitting II respectively; wherein,
the multi-fracture arc extinguishing device 2 comprises a device main body 201 and an arc striking electrode I202; the arc ignition electrode I202 is fixedly arranged at one end of the device main body 201 and points to the horizontal arc extinguishing device 3, and the other end of the device main body 201 is fixedly arranged at one end of the insulator 1 through the connecting hardware fitting I; the device main body 201 is provided with an arc extinguishing path 204 which consists of a plurality of arc extinguishing channels 210 and is arranged in a Z-shaped circulation manner; the copper blocks 203 are arranged at the joints of every two adjacent arc extinguishing channels 210, two arc extinguishing tubes 212 are arranged in each arc extinguishing channel 210, and an arc guiding ball 211 is arranged between the two arc extinguishing tubes 212; an arc extinguishing tube at the inlet of a first section of arc extinguishing channel of the arc extinguishing path 204 is connected with an arc striking electrode I202 through an arc guide rod, and an arc extinguishing tube at the outlet of a last section of arc extinguishing channel is connected with a connecting hardware fitting I through a lead;
a left side magazine, a right side magazine and an arc striking electrode II 308 are arranged in the transverse arc extinguishing device 3; the left side magazine and the right side magazine are both provided with vertical rails 301 for transversely discharging arc extinguishing gas pills 303, and the bottom of each vertical rail 301 is provided with a slope-shaped preparation rail I and a slope-shaped preparation rail II; an air shot triggering position I307 is arranged at the tail end of a preparation track I of the left magazine, triggering electrodes I306 are respectively arranged on two sides of the air shot triggering position I307, and the triggering electrodes I306 are connected with an induction coil I313 used for collecting lightning pulse electric signals; an air shot triggering position II 309 is arranged at the tail end of a preparation track II of the right magazine, triggering electrodes II 310 are respectively arranged on two sides of the air shot triggering position II 309, and the triggering electrodes II 310 are connected with an induction coil II 314 used for collecting lightning pulse electric signals; one end of the arc striking electrode II 308 is connected with the connecting hardware fitting II, and the other end of the arc striking electrode II passes through the induction coil II 314 and the induction coil I313 in sequence to extend to a position near a position between the gas-pill triggering position I307 and the gas-pill triggering position II 309 and point to the arc striking electrode I202 of the multi-fracture arc extinguishing device 2.
The horizontal arc extinguishing device 3 further comprises a digital counter I305 and a digital counter II 311 which are fixedly arranged on the outer surface of the horizontal arc extinguishing device 3 respectively; a counting pressing point I304 is arranged on a preparation track I of the left magazine, and the counting pressing point I304 is connected with a driving shaft of a digital counter I305 through a connecting rod; and a counting pressing point II 312 is arranged on a preparation track II of the right magazine, and the counting pressing point II 312 is connected with a driving shaft of a digital counter II 311 through a connecting rod.
The arc extinguishing gas pill 303 is provided with a shell; the shell is provided with two notches which are symmetrically designed and are in an inverted V shape, and the tops of the notches are provided with connecting electrodes; the arc extinguishing gas pill 303 is located at a gas pill triggering position I307 or a gas pill triggering position II 309, and a connecting electrode of the arc extinguishing gas pill 303 is connected with a triggering electrode I306 or a triggering electrode II 310 to form a triggering circuit I or a triggering circuit II. And the trigger circuit I and the trigger circuit II are locked with each other.
The multi-fracture arc extinguishing device 2 also comprises a small ball counter; the ball counter mainly comprises a ball storage 207 and a counting ball 208 arranged in the ball storage 207; the outlet of the ball storage 207 corresponds to the outlet of the last arc extinguishing channel. The small ball counter is a vertical counter.
A nut I is arranged in the bottom of the device main body 201 of the multi-fracture arc extinguishing device 2; the surface of link fitting I be equipped with the external screw thread to adopt external nut to compress tightly nut I that stationary blade and device main part 201 are inside to carry out threaded connection. The device main body 201 of the multi-fracture arc extinguishing device 2 is made of hydrophobic materials, and the outer surface of the device main body 201 is provided with an umbrella skirt 205; the arc ignition electrode I202 is a graphite electrode; the arc-guiding ball 211 is a graphite ball or a copper ball; the arc extinguishing tube 212 is a thin ceramic tube; through holes are arranged on two sides of the copper block 203.
Claims (11)
1. A combined interceptor comprises a multi-fracture arc extinguishing device (2) and a horizontal arc extinguishing device (3), wherein the multi-fracture arc extinguishing device and the horizontal arc extinguishing device are fixedly arranged at two ends of an insulator (1) respectively through a connecting hardware fitting I and a connecting hardware fitting II; the method is characterized in that: the multi-fracture arc extinguishing device (2) comprises a device main body (201) and an arc striking electrode I (202); the arc striking electrode I (202) is fixedly arranged at one end of the device main body (201) and points to the horizontal arc extinguishing device (3), and the other end of the device main body (201) is fixedly arranged at one end of the insulator (1) through the connecting hardware fitting I; the device main body (201) is provided with an arc extinguishing path (204) which consists of a plurality of arc extinguishing channels (210) and is arranged in a Z-shaped circulating manner; copper blocks (203) are arranged at the joints of every two adjacent arc extinguishing channels (210), two arc extinguishing tubes (212) are arranged in each section of arc extinguishing channel (210), and an arc guide ball (211) is arranged between the two arc extinguishing tubes (212); an arc extinguishing tube at the inlet of a first section of arc extinguishing channel of the arc extinguishing path (204) is connected with an arc striking electrode I (202) through an arc guide rod, and an arc extinguishing tube at the outlet of a last section of arc extinguishing channel is connected with a connecting hardware fitting I;
a left side magazine, a right side magazine and an arc striking electrode II (308) are arranged in the horizontal arc extinguishing device (3); the left side magazine and the right side magazine are respectively provided with a vertical track (301) for transversely discharging arc extinguishing gas pills (303), and the bottom of the vertical track (301) is respectively provided with a slope-shaped preparation track I and a preparation track II; an air shot triggering position I (307) is arranged at the tail end of a preparation track I of the left magazine, triggering electrodes I (306) are respectively arranged on two sides of the air shot triggering position I (307), and the triggering electrodes I (306) are connected with an induction coil I (313) used for collecting lightning pulse electrical signals; an air shot triggering position II (309) is arranged at the tail end of a preparation track II of the right magazine, two sides of the air shot triggering position II (309) are respectively provided with a triggering electrode II (310), and the triggering electrodes II (310) are connected with an induction coil II (314) used for acquiring lightning pulse electrical signals; one end of the arc striking electrode II (308) is connected with the connecting hardware fitting II, and the other end of the arc striking electrode II penetrates through the induction coil II (314) and the induction coil I (313) in sequence to extend to a position near a position between the gas pill triggering position I (307) and the gas pill triggering position II (309) and point to the arc striking electrode I (202) of the multi-fracture arc extinguishing device (2).
2. A combination interceptor of claim 1 wherein: the horizontal arc extinguishing device (3) further comprises a digital counter I (305) and a digital counter II (311) which are fixedly arranged on the outer surface of the horizontal arc extinguishing device (3) respectively; a counting pressing point I (304) is arranged on a preparation track I of the left magazine, and the counting pressing point I (304) is connected with a driving shaft of a digital counter I (305) through a connecting rod; and a counting pressing point II (312) is arranged on a preparation track II of the right magazine, and the counting pressing point II (312) is connected with a driving shaft of a digital counter II (311) through a connecting rod.
3. A combination interceptor of claim 2 wherein: the arc extinguishing gas pill (303) is provided with a shell; the shell is provided with two notches which are symmetrically designed and are in an inverted V shape, and the tops of the notches are provided with connecting electrodes; the arc extinguishing gas pill (303) is positioned at a gas pill triggering position I (307) or a gas pill triggering position II (309), and a connecting electrode of the arc extinguishing gas pill (303) is connected with a triggering electrode I (306) or a triggering electrode II (310) to form a triggering circuit I or a triggering circuit II.
4. A combined interceptor of claim 3, wherein: the vertical tracks (301) of the left magazine and/or the right magazine are arranged in more than two rows, and every two vertical tracks of the same magazine are separated by a rotatable baffle (302).
5. A combined interceptor of claim 4 wherein: the upper end of the rotatable baffle (302) is hinged on the shell of the transverse arc extinguishing device (3).
6. A combined interceptor of claim 3, wherein: the counting pressing point I (304) in the left magazine is connected in series with the trigger circuit II in the right magazine, and when the arc extinguishing gas pill (303) enters the preparation track I and presses the counting pressing point I (304), the trigger circuit II in the right magazine is in a disconnected state; after the arc extinguishing gas pill (303) that is in gas pill trigger position I (307) triggers the action, break away from gas pill trigger position I (307), subsequent arc extinguishing gas pill (303) begin to roll gliding, the count is pressed point I (304) and is obtained the release, trigger circuit II in the right side storage magazine is in the state of switching on and waiting to trigger, until the next arc extinguishing gas pill (303) in the left side storage magazine gets into gas pill trigger position I (307), the count is pressed point I (304) and is extrudeed by arc extinguishing gas pill (303), trigger circuit II resumes off-state.
7. A combination interceptor of claim 1 wherein: the multi-fracture arc extinguishing device (2) also comprises a small ball counter; the small ball counter mainly comprises a small ball storage (207) and counting small balls (208) arranged in the small ball storage (207); the outlet of the ball storage (207) corresponds to the outlet of the last arc extinguishing channel.
8. A combination interceptor of claim 7 wherein: the small ball counter is a spiral counter, a vertical counter or a pressing and elastic counter; when the small ball counter is a spiral counter, a small ball storage device (207) of the spiral counter is spirally arranged on a device main body (201) of the multi-fracture arc extinguishing device (2); when the small ball counter is a press-spring type counter, the press-spring type counter is installed at the bottom of a device main body (201) of the multi-fracture arc extinguishing device (2) through a fixed outer ring (206), and a spring (209) is arranged inside a small ball storage (207).
9. A combination interceptor of claim 8 wherein: a nut I is arranged in the bottom of a device main body (201) of the multi-fracture arc extinguishing device (2); the outer surface of the connecting hardware fitting I is provided with external threads, and the external nut is adopted to compress the fixing piece to be in threaded connection with the nut I inside the device main body (201).
10. A combination interceptor of claim 1 wherein: the device main body (201) of the multi-fracture arc extinguishing device (2) is made of hydrophobic materials, and an umbrella skirt (205) is arranged on the outer surface of the device main body (201); the arc ignition electrode I (202) is a graphite electrode; the arc guide ball (211) is a graphite ball or a copper ball; the arc extinguishing tube (212) is a thin ceramic tube; through holes are arranged on two sides of the copper block (203).
11. A combination interceptor of claim 1 wherein: the transverse arc extinguishing device (3) is provided with a bearing rod (315), one end of the bearing rod (315) extends into the transverse arc extinguishing device (3), and a coulomb disc (316) is arranged at the tail end of the bearing rod (315).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072472A (en) * | 2020-08-31 | 2020-12-11 | 广东电网有限责任公司 | Arc extinguishing lightning arrester |
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| US4503414A (en) * | 1983-06-20 | 1985-03-05 | Sykes Huey P | Current interrupting lightning arrester isolator |
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| CN112072472B (en) * | 2020-08-31 | 2022-01-25 | 广东电网有限责任公司 | Arc extinguishing lightning arrester |
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