CN204242933U - High voltage switching device and arc control device, tank body - Google Patents
High voltage switching device and arc control device, tank body Download PDFInfo
- Publication number
- CN204242933U CN204242933U CN201420642799.XU CN201420642799U CN204242933U CN 204242933 U CN204242933 U CN 204242933U CN 201420642799 U CN201420642799 U CN 201420642799U CN 204242933 U CN204242933 U CN 204242933U
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- Prior art keywords
- connection end
- power connection
- tank body
- face
- baffling
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- Withdrawn - After Issue
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- 230000003068 static effect Effects 0.000 claims description 11
- 238000002679 ablation Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000003595 mist Substances 0.000 abstract description 17
- 239000012491 analyte Substances 0.000 abstract description 9
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- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 39
- 238000009413 insulation Methods 0.000 description 23
- 239000000463 material Substances 0.000 description 11
- 239000000428 dust Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
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- 230000001070 adhesive effect Effects 0.000 description 3
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- 238000001816 cooling Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
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- 239000012774 insulation material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
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- 229910052757 nitrogen Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
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- 230000015556 catabolic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a kind of high voltage switching device and arc control device, tank body.Be equipped with the solid insulating layer between the internal face of give vent to anger position and the tank body body that are located at the blowout side on quiet power connection end in tank body, solid insulating layer is baffling-face towards the side of blowout side.In use, the insulating gas that the spout of driven power connection end ejects is to after the high-voltage arc arc extinguishing in fracture, blowout side spray on driven power connection end and/or quiet power connection end goes out, now not only flow velocity and temperature are still higher for insulating gas, and some metallic dusts and ionization analyte will be mingled with, now the mist of high temperature and high speed will collide on the baffling-face of fixed solid insulating barrier, this baffling-face will play the effect of containment by the mist powerful to wind-force, to make the energy of mist be released by collision effect, thus avoid the mist gone out from blowout side spray to the impact erosion of the internal face of tank body body.
Description
Technical field
The utility model relates to a kind of high voltage switching device and arc control device, tank body.
Background technology
At present, in switchgear, customary insulation mode is divided into gas-insulated and fixed insulation, gas isolated mode is filled with sulfur hexafluoride gas, nitrogen etc. in arc control device, the mode of solid insulation is in arc control device, arrange polytetrafluoroethylene, electroporcelain material, glass fabric, resin material etc., and in the insulation against ground of metal enclosed switchgear, generally adopt gas isolated mode, its advantage is that the form of gas is not fixed, especially adopt the switchgear of air blowing arc extinguishing, gas-insulated plays the effect of arc extinguishing especially.But no matter gas-insulated adopts sulfur hexafluoride gas or nitrogen, its dielectric strength is all lower than the fixed insulation material in fixed insulation, and the variable effect of temperature, pressure, element ablation in the tank body that the insulation property of insulating gas can be subject to metal enclosed switchgear, cause metal enclosed switchgear under equal electric pressure, adopt gas isolated tank body larger than adopting the tank body external diameter of open type switchgear.
When metal enclosed switchgear carries out cut-offfing action, insulating gas is spurted to quiet power connection end from the dynamic power connection end of arc control device, the electric arc that insulating gas will be blown out between static arc contact and moving arcing contact, and the cooling duct flowed through in fixed contact pedestal---air side of the open type on fixed contact pedestal periphery or flow through the surface of the static arc contact---air side of the open type on static arc contact periphery, the internal face injecting directly on tank body carries out baffling.But because of dynamic, between static connection end, high-temperature electric arc can heat insulating gas, make the pressure increase of insulating gas, insulating capacity declines, and the dynamic power connection end of arc control device utilizes mechanical system manufacture pressure differential or utilize arc control device pressure itself difference to carry out arc extinguishing, the quiet power connection end simultaneously high-temperature insulation gas being blowed to arc control device cools, so in the gas-cooled process of high-temperature insulation, the element of the quiet power connection end of gas meeting ablation arc control device, to produce a certain amount of metallic dust and ionization analyte in the gas channel of quiet power connection end, the insulating gas of this part dust Sum decomposition thing and not thoroughly cooling will directly be jetted on the internal face of tank body from the air side on quiet power connection end, the dust Sum decomposition thing be mixed in insulating gas can burn and corrode the tank skin of tank body, so that the internal face of tank body is uneven, heavy then arc control device will be caused to puncture over the ground or discharge, so Cubicle Gas-Insulated Switchgear needs to reduce insulating gas temperature by extending the quiet end gas channel of arc control device usually.
But gas channel to be extended in limited space, deflection plate can only be increased in cooling duct in the quiet power connection end of arc control device, the effect of deflection plate is also limited, when the tank body internal diameter of Cubicle Gas-Insulated Switchgear narrows down to a certain degree, insulation against ground will become very responsive, as long as there is the reduction of some insulation property, will cause discharging over the ground or puncturing, now have no baffle plate will affect not quite the insulation property of whole arc control device.
And along with the progress of society, the continuous increase of the density of population, the requirement of modern society to the utilance in space also improves thereupon, so that the demand that market reduces the overall dimension of metal enclosed switchgear is more and more higher, as in electrical network requirement of invitation for bid, the width of 252kV three-phase phase-splitting metal enclosed switchgear is down to 1500mm from initial 2300mm, it is such as the circuit breaker of dielectric with sulfur hexafluoride gas, if the diameter itself of arc control device does not reduce, the tank diameter of metal enclosed switchgear has dropped to a limit, if reduce tank diameter further, only have and increase insulating gas pressure in tank body, but this method not only wastes gas, but also have impact to the safety of metal enclosed switchgear, improve design pressure after all, not only material cost will be increased, but also need more high-grade authentication of professional qualification.
Utility model content
The purpose of this utility model is to provide a kind of tank body avoiding internal face to be impacted the high-voltage switch gear arc control device of burning by the insulating gas of high temperature, additionally provides a kind ofly use the arc control device of this tank body and use the high voltage switching device of these arc control device simultaneously.
In order to realize above object, in the utility model, the technical scheme of tank body is as follows:
Tank body, comprise the tank body body loaded for the dynamic and static power connection end be oppositely arranged, be provided with for every being located at the solid insulating layer between blowout side and the internal face of tank body body that dynamic power connection end and/or quiet power connection end are arranged in tank body body, the side, side of solid insulating layer is for arranging towards blowout side, to stop the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate.
Solid insulating layer is the solid insulating layer of resistance to ablation that thermal endurance class is not less than C level.
Solid insulating layer is the platy layer body for arranging towards the blowout side of open type.
In the utility model, the technical scheme of arc control device is as follows:
Arc control device, comprise tank body, dynamic and static power connection end is relatively set with in the tank body body of tank body, dynamic power connection end and/or quiet power connection end are provided with and blow to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, what blow out the internal face of give vent to anger position and the tank body body of side is interval with solid insulating layer, and solid insulating layer is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate towards the side of blowout side.
Solid insulating layer is the solid insulating layer of resistance to ablation that thermal endurance class is not less than C level.
Air side is be in the opening dynamic power connection end or quiet power connection end side offered, and solid insulating layer is the platy layer body towards side being oppositely arranged on described opening.
Described opening is in the position, bottom side of the outer peripheral face of residing power connection end, and the both sides of the edge being in the relative direction of dynamic and static power connection end of platy layer body are stretched out from the two ends of relative power connection end.
The both sides of the edge being in power connection end circumference of baffling-face be upturned and with the outer peripheral face of power connection end is be arranged in parallel, the edge of the tilting side of baffling-face higher than bottom side portion to the outer peripheral face of power connection end.
The technical scheme of high voltage switching device of the present utility model is as follows:
High voltage switching device, comprise the operating mechanism of arc control device and upper driving connection thereof, arc control device comprise tank body, dynamic and static power connection end is relatively set with in the tank body body of tank body, dynamic power connection end and/or quiet power connection end are provided with and blow to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, what blow out the internal face of give vent to anger position and the tank body body of side is interval with solid insulating layer, and solid insulating layer is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate towards the side of blowout side.
Air side is be in the opening dynamic power connection end or quiet power connection end side offered, and solid insulating layer is the platy layer body towards side being oppositely arranged on described opening.
What blow out the internal face of give vent to anger position and the tank body body of side in the utility model is interval with solid insulating layer, and solid insulating layer is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate towards the side of blowout side.In use, the insulating gas that the spout of driven power connection end ejects is to after the high-voltage arc arc extinguishing in fracture, blowout side spray on driven power connection end and/or quiet power connection end goes out, now not only flow velocity and temperature are still higher for insulating gas, and some metallic dusts and ionization analyte will be mingled with, now the mist of high temperature and high speed will collide on the baffling-face of fixed solid insulating barrier, this baffling-face will play the effect of containment by the mist powerful to wind-force, to make the energy of mist be released by collision effect, thus avoid the mist gone out from blowout side spray to the impact erosion of the internal face of tank body body.Simultaneously, solid insulating layer not only can strengthen the dielectric strength in arc control device, and when the baffling-face of the continuous colliding solid insulating barrier of mist, even if baffling-face becomes uneven, also the electric field at residing position can be made to keep stable because the internal face of tank body body keeps complete, thus avoid power connection end and occur in blowout side the problem that the tank skin of the tank body body caused by electric field change is breakdown.
Further, air side is the opening that the bottom side of the outer peripheral face being in dynamic power connection end or quiet power connection end is offered, being in of platy layer body is dynamic, the both sides of the edge of the relative direction of quiet power connection end are stretched out from the two ends of relative power connection end, like this above-mentioned mist from opening ejection and on the baffling-face of solid insulating layer collision rift, gaseous mixture knows from experience baffling under the guiding of baffling-face, so that the flow velocity of mist reduces gradually from opening to the two ends of power connection end, the metallic dust be mingled with in mist can deposit below the power connection end residing for opening along with slowing down of flow velocity with major part in ionization analyte, and it is relative with the baffling-face of solid insulating layer below power connection end residing for opening, sink on the baffling-face of solid insulating layer to make isolated metallic dust and ionization analyte from mist, separated by solid insulating layer between the internal face of the deposit namely below power connection end and tank body body, even if thus make deposit deposit highly be increased to situation about contacting with the outer peripheral face of power connection end, deposit also can not by tank body body and power connection end conducting, therefore the insulation property of arc control device are further increased, avoid power connection end and tank body body in arc control device and occur the hidden danger of conducting.
Further, the both sides of the edge being in power connection end circumference of baffling-face be upturned and with the outer peripheral face of power connection end is be arranged in parallel, the edge of the tilting side of baffling-face higher than bottom side portion to the outer peripheral face of power connection end.In use, from the mist that the opening of power connection end bottom side sprays, part is on baffling-face upwards after baffling, the metallic dust be mingled with in mist and ionization analyte are upwards brushed, and after metallic dust in this section in mist and ionization analyte depart from from insulating gas, upturned portion along baffling-face is slipped to the below of power connection end, to make, deposit is as far as possible many to be deposited between baffling-face and power connection end, further increase the insulation property of arc control device, avoid metallic dust and ionization analyte causes in the both sides of the edge of baffling-face deposition, the situation of deposit conducting power connection end and tank body body.
Accompanying drawing explanation
Fig. 1 is the structural representation of arc control device in the embodiment of high voltage switching device of the present utility model.
Embodiment
The embodiment of the utility model high-voltage switch device: as shown in Figure 1, this high voltage switching device is a kind of primary cut-out, comprise the operating mechanism of arc control device and upper driving connection thereof, the structure of operating mechanism belongs to prior art, and arc control device are formed primarily of tank body, dynamic power connection end 2 and quiet power connection end 4.Tank body is again be made up of tank body body 3 and solid insulating layer, tank body body 3 extends in left-right direction, the two ends of tank body body 3 are connected with end cap 9 respectively by flange-interface 8 bolt, the coaxial setting that dynamic power connection end 2 is relative with quiet power connection end 4 left and right in tank body body 3, and the blowout side 6 of downward opening outlet type is offered in the position, bottom side of the outer peripheral face of quiet power connection end 4.Solid insulating layer is be oppositely arranged on the platy layer body 5 below blowout side 6, platy layer body 5 is adhesively fixed on the internal face of tank body body 3 by tack coat, platy layer body 5 adopts the polytetrafluoroethylmaterial material of the isolation material of resistance to ablation of C level thermal endurance class, and the upper side of platy layer body 5 is the baffling-face arranged towards the blowout side 6 on quiet power connection end 4.
The two ends, left and right of platy layer body 5 are stretched out from the left and right sides of quiet power connection end 4, the both sides of the edge, front and back of platy layer body 5 are upturned and form the tile like structure that arrange coaxial with quiet power connection end 4 in the below of quiet power connection end 4, to be upturned to make the both sides of the edge, front and back of the baffling-face on platy layer body 5 and parallel with the outer peripheral face of quiet power connection end 4, and the front and back dual-side of baffling-face is along the bottom side portion higher than quiet power connection end 4.
Tank body body 3 is metal can body 3, and the top of tank body body 3 is provided with the moved end wire hole that connects dynamic power connection end 2 respectively and is connected quiet the quiet of power connection end 4 and brings out string holes, and moved end wire hole and the quiet Flange joint respectively that to bring out in string holes have insulating basin 1.
In the present embodiment, platy layer body 5 is except employing polytetrafluoroethylene material, also the high temperature insulating materials such as ceramic material can be adopted, this type of material is after running into high-temperature hot air-flow, insulation property can not be reduced because of the change of temperature, and platy layer body 5 also can be multi-layer material is composited, its objective is the electric field utilizing dielectric difference of unlike material to improve quiet power connection end 4 periphery to manufacture electric capacity, but the baffling-face of platy layer body 5 must be high-temperature insulation material, and namely residing for baffling-face, the thermal endurance class of layer is not less than C level.The situation that insulation property reduce can be there is in the insulating gas of quiet power connection end 4 periphery in high-temperature electric arc heating, and the baffling-face of platy layer body 5 covers the side-lower of giving vent to anger of quiet power connection end 4, to make the thermal current of discharging from quiet power connection end 4 stop by the baffling-face of platy layer body 5, the high-temperature insulation gas being mingled with metallic dust and ionization analyte is avoided to inject directly on the internal face of tank body body 3.
When setting the thickness of platy layer body 5, the dielectric strength due to platy layer body 5 depends on its material and thickness, for this reason ad hocly determines following steps to calculate the thickness of platy layer body 5:
Account form one: 1, according to insulating gas under the impact of thermal current, losing insulating capacity is completely basis;
2, by calculating or test method, know that arc control device are not before installing platy layer body 5 additional, arc control device are by the minimum insulation distance of thunder and lightning and power frequency insulating test over the ground;
3, according to the minimum insulation distance in step 2, calculate the thickness of the platy layer body 5 needed in tank body body 3, but because the dielectric strength of solid insulation material is different, so in foundation step 2, the thickness of the platy layer body 5 that insulation distance calculates can change along with the difference of material.
Account form two: 1, by calculate or test method, know arc control device do not install additional insulation resistance to ablation layer before, arc control device are by the insulation distance of type approval test;
2, according to minimum insulation distance in step 1, the minimum insulation distance with not installing the resistance to ablation layer that insulate in mode one additional, compares, and calculates the thickness of the platy layer body 5 needed in circuit breaker.
Therefore pass-through mode two can reduce the diameter of tank body body 3 to greatest extent.
Because all solids insulating material is different according to production technology, also great changes have taken place for self dielectric strength, so the present embodiment only specifies the referential data of some conventional solid insulating material, suppose, the dielectric strength of sulphur hexafluoride is 1, according to calculation and test, the dielectric strength of epoxy resin is 4-6, the dielectric strength of sulphurated siliastic is 3-4, and the dielectric strength of polytetrafluoro is 2-3, and the dielectric strength of porcelain insulating material is 5-7.
When assembling these arc control device, platy layer body 5 any one can be loaded from the flange-interface 8 at tank body body about 3 two ends, and by applying adhesive linkage 7 and platy layer body 5 is fixed on assigned address on the internal face of tank body body 3, or make adhesive linkage 7 enter in company with platy layer body 5 position realizing platy layer body 5 in tank body body 3 together by applying adhesive linkage 7 on the evagination bottom side of platy layer body 5 to fix, after platy layer body 5 assembles, again dynamic power connection end 2 and quiet power connection end 4 are assemblied in tank body body 3, and the encapsulation of arc control device is realized by end cap 9 and insulated terminal.
In the above-described embodiments, the baffling-face of platy layer body covers below the bottom side portion of quiet power connection end, with the internal face of the bottom side portion and tank body body that intercept the quiet power connection end of deposit conducting, in other embodiments, when not considering sedimental alluvial, platy layer body also only can cover the blow-off outlet position on the downside of quiet power connection end, to play the problem that anti-mist sprays calcination erosion.
In the above-described embodiments, the blowout side on quiet power connection end is the aperture being in its position, bottom side, and in other are implemented, this blowout side also can be the opening etc. of the notch form that the periphery open spaces of fixed contact or quiet power connection end are offered.
The embodiment of arc control device in the utility model: in the present embodiment, the structure of arc control device is identical with the structure of arc control device in above-mentioned enforcement, therefore repeats no more.
The embodiment of tank body in the utility model: in the present embodiment, the structure of tank body is identical with the structure of tank body in above-described embodiment, therefore repeats no more.
Claims (10)
1. tank body, comprise the tank body body loaded for the dynamic and static power connection end be oppositely arranged, it is characterized in that, be provided with for every being located at the solid insulating layer between blowout side and the internal face of tank body body that dynamic power connection end and/or quiet power connection end are arranged in tank body body, the side, side of solid insulating layer is for arranging towards blowout side, to stop the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate.
2. tank body according to claim 1, is characterized in that, solid insulating layer is the solid insulating layer of resistance to ablation that thermal endurance class is not less than C level.
3. tank body according to claim 1 and 2, is characterized in that, solid insulating layer is the platy layer body for arranging towards the blowout side of open type.
4. arc control device, comprise tank body, dynamic and static power connection end is relatively set with in the tank body body of tank body, dynamic power connection end and/or quiet power connection end are provided with and blow to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, it is characterized in that, what blow out the internal face of give vent to anger position and the tank body body of side is interval with solid insulating layer, and solid insulating layer is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate towards the side of blowout side.
5. arc control device according to claim 4, is characterized in that, solid insulating layer is the solid insulating layer of resistance to ablation that thermal endurance class is not less than C level.
6. the arc control device according to claim 4 or 5, is characterized in that, air side is be in the opening dynamic power connection end or quiet power connection end side offered, and solid insulating layer is the platy layer body towards side being oppositely arranged on described opening.
7. arc control device according to claim 6, is characterized in that, described opening is in the position, bottom side of the outer peripheral face of residing power connection end, and the both sides of the edge being in the relative direction of dynamic and static power connection end of platy layer body are stretched out from the two ends of relative power connection end.
8. arc control device according to claim 6, it is characterized in that, the both sides of the edge being in power connection end circumference of baffling-face be upturned and with the outer peripheral face of power connection end is be arranged in parallel, the edge of the tilting side of baffling-face higher than bottom side portion to the outer peripheral face of power connection end.
9. high voltage switching device, comprise the operating mechanism of arc control device and upper driving connection thereof, arc control device comprise tank body, be relatively set with dynamic in the tank body body of tank body, quiet power connection end, dynamic power connection end and/or quiet power connection end are provided with and blow to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, it is characterized in that, what blow out the internal face of give vent to anger position and the tank body body of side is interval with solid insulating layer, solid insulating layer is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate towards the side of blowout side.
10. high voltage switching device according to claim 9, is characterized in that, air side is be in the opening dynamic power connection end or quiet power connection end side offered, and solid insulating layer is the platy layer body towards side being oppositely arranged on described opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642799.XU CN204242933U (en) | 2014-10-31 | 2014-10-31 | High voltage switching device and arc control device, tank body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642799.XU CN204242933U (en) | 2014-10-31 | 2014-10-31 | High voltage switching device and arc control device, tank body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242933U true CN204242933U (en) | 2015-04-01 |
Family
ID=52772393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642799.XU Withdrawn - After Issue CN204242933U (en) | 2014-10-31 | 2014-10-31 | High voltage switching device and arc control device, tank body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362035A (en) * | 2014-10-31 | 2015-02-18 | 平高集团有限公司 | High-voltage switch device and arc extinguish chamber and tank of high-voltage switch device |
-
2014
- 2014-10-31 CN CN201420642799.XU patent/CN204242933U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362035A (en) * | 2014-10-31 | 2015-02-18 | 平高集团有限公司 | High-voltage switch device and arc extinguish chamber and tank of high-voltage switch device |
| CN104362035B (en) * | 2014-10-31 | 2017-10-10 | 平高集团有限公司 | A kind of high-tension switch gear and its arc-chutes, tank body |
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