CN114203475B - Grounding switch with reinforced insulating moving and static contact structure - Google Patents
Grounding switch with reinforced insulating moving and static contact structure Download PDFInfo
- Publication number
- CN114203475B CN114203475B CN202111467491.7A CN202111467491A CN114203475B CN 114203475 B CN114203475 B CN 114203475B CN 202111467491 A CN202111467491 A CN 202111467491A CN 114203475 B CN114203475 B CN 114203475B
- Authority
- CN
- China
- Prior art keywords
- grounding
- contact
- copper sleeve
- static
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 70
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910052802 copper Inorganic materials 0.000 claims abstract description 79
- 239000010949 copper Substances 0.000 claims abstract description 79
- 239000012212 insulator Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 13
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 241000227287 Elliottia pyroliflora Species 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000008358 core component Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a grounding switch with a reinforced insulating moving and static contact structure, which comprises a static grounding contact, an insulator, a moving grounding contact, a base plate, a grounding point contact, a grounding point copper sleeve, a grounding arm, a moving end copper sleeve, an electric connection medium and a static end copper sleeve, wherein the static grounding contact is connected with the insulator; the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are internally provided with electric connection mediums and are all arranged on the grounding arm and correspondingly matched with the static end grounding contact, the moving end grounding contact and the grounding point contact respectively. The structure is ingenious, the principle is simple, the electric field distribution around the main circuit breaker can be improved, the corona onset voltage is improved, the insulation safety is good, the universality is high, and the high-voltage electric appliance integrated circuit is particularly suitable for being applied to high-voltage electric appliance integrated technology.
Description
Technical Field
The invention relates to a high-voltage insulation technology, in particular to a grounding switch with a reinforced insulation moving and static contact structure.
Background
In the rail transit field, the grounding switch is a protection switch of a network side high-voltage system, and is matched with two ends of a fracture of a vacuum circuit breaker to realize double-side grounding of a contact network and a transformer, the grounding switch is in an operation position in the operation process of an electric locomotive and a motor train unit, and the grounding switch is operated to be grounded when maintenance operation is needed.
The most common structure of the matching of the grounding switch and the vacuum circuit breaker is a grounding clamp and a grounding contact or a grounding knife, the vacuum circuit breaker is used as a live action switch of a high-voltage main loop, the generation of operation overvoltage is accompanied in the process of switching on and off the main loop, the problems of poor electric field uniformity and lower corona onset voltage exist in the conventional grounding contact or grounding knife structure, particularly in a closed high-voltage box or a network side cabinet, the electric field distribution is complex, the ground contact or the grounding knife with irregularities possibly breaks down the ground to discharge faults under the induction of specific overvoltage, vehicle marshalling and other working conditions, and the structure of the grounding clamp matched with the grounding contact or the grounding knife is also unfavorable for the electric field uniform distribution when the high-voltage end is negative in polarity, so that the insulating safety risk exists.
Currently, the technical direction of the rolling stock network side high-voltage system is an integrated and miniaturized design, so that the structural characteristics and electric field uniformity of each component of the high-voltage electrical appliance are important for the overall layout design and insulation reliability. In order to improve the corona onset voltage of a high-voltage ground contact of a vacuum circuit breaker and improve the electric field distribution uniformity of a vacuum circuit breaker and a ground switch area, the practical service and support network side high-voltage electric appliance integration technology is developed, and the development of a ground switch with an enhanced insulating dynamic and static contact structure are urgent.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a grounding switch with a dynamic and static contact structure for enhancing insulation, so as to solve the technical problems in the prior art. The structure is ingenious, the principle is simple, the electric field distribution around the main circuit breaker can be improved, the corona onset voltage is improved, the insulation safety is good, the universality is high, and the high-voltage electric appliance integrated circuit is particularly suitable for being applied to high-voltage electric appliance integrated technology.
The invention aims at realizing the following technical scheme:
The invention relates to a grounding switch with a reinforced insulating moving and static contact structure, which comprises a static grounding contact, an insulator, a moving grounding contact, a base plate, a grounding point contact, a grounding point copper sleeve, a grounding arm, a moving end copper sleeve, an electric connection medium and a static end copper sleeve, wherein the static grounding contact is connected with the insulator;
the fixed grounding contact, the movable grounding contact and the insulator are of an integrated structure, and the insulator and the grounding contact are arranged on the base plate;
the static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve are internally provided with the electric connection medium, are both arranged on the grounding arm, and are correspondingly matched with the static end grounding contact, the movable end grounding contact and the grounding point contact respectively.
Compared with the prior art, the grounding switch with the enhanced insulating moving and static contact structure, provided by the embodiment of the invention, has the advantages that the structural design of the moving and static contacts and the grounding copper sleeve is ingenious, the electrical performance is outstanding, the electric field distribution around a main circuit breaker can be greatly improved, the corona onset voltage is improved, the insulating safety is improved, and the adverse effect of over-voltage of over-phase separation operation is reduced; the grounding arm has novel and unique structural characteristics and grounding modes, reduces the space, ensures the reliable grounding of two ends, and improves the insulating performance, especially the insulating performance under the negative working condition.
Drawings
Fig. 1 is a schematic structural diagram of a moving and static contact structure and a grounding switch according to an embodiment of the present invention;
In the figure:
1. The static end grounding contact 2, the insulator 3, the moving end grounding contact 4, the base plate 5, the grounding point contact 6, the grounding point copper sleeve 7, the grounding arm 8, the moving end copper sleeve 9, the electric connection medium 10, the static end copper sleeve A, the grounding switch B and the main circuit breaker
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it will be apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, which do not constitute limitations of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The terms that may be used herein will first be described as follows:
The term "and/or" is intended to mean that either or both may be implemented, e.g., X and/or Y are intended to include both the cases of "X" or "Y" and the cases of "X and Y".
The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example: including a particular feature (e.g., a starting material, component, ingredient, carrier, formulation, material, dimension, part, means, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.), should be construed as including not only a particular feature but also other features known in the art that are not explicitly recited.
The term "consisting of … …" is meant to exclude any technical feature element not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly to include, for example: the connecting device can be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms herein above will be understood by those of ordinary skill in the art as the case may be.
The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description and to simplify the description, and do not explicitly or implicitly indicate that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure.
What is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art. The specific conditions are not noted in the examples of the present invention and are carried out according to the conditions conventional in the art or suggested by the manufacturer. The reagents or apparatus used in the examples of the present invention were conventional products commercially available without the manufacturer's knowledge.
The invention relates to a grounding switch with a reinforced insulating moving and static contact structure, which comprises a static grounding contact, an insulator, a moving grounding contact, a base plate, a grounding point contact, a grounding point copper sleeve, a grounding arm, a moving end copper sleeve, an electric connection medium and a static end copper sleeve, wherein the static grounding contact is connected with the insulator;
the fixed grounding contact, the movable grounding contact and the insulator are of an integrated structure, and the insulator and the grounding contact are arranged on the base plate;
the static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve are internally provided with the electric connection medium, are both arranged on the grounding arm, and are correspondingly matched with the static end grounding contact, the movable end grounding contact and the grounding point contact respectively.
The fixed end copper sleeve and the movable end copper sleeve are of a cylindrical or umbrella-shaped structure with a pressed ring at the end part of the outer ring and a circular arc at the end part of the inner sleeve.
The grounding arm is a multi-layer cylindrical rod piece, the inside of the grounding arm is a grounding conductor, and the outside of the grounding arm is coated by an insulating material.
The grounding structure of the grounding arm is a separable shaft sleeve matching structure and is separated from the high-voltage end by the base plate at intervals.
The static end contact, the moving end contact and the grounding point contact are in a direct-acting mode, and the operating mechanism is a manual mechanism, a pneumatic mechanism and/or an electric mechanism.
In summary, the grounding switch with the enhanced insulating moving and static contact structure has the advantages of ingenious structure, simple principle, capability of improving electric field distribution around a main circuit breaker, capability of improving corona onset voltage, good insulating safety and high universality, and is particularly suitable for application of high-voltage electric appliance integration technology.
The static grounding contact, the insulator, the moving grounding contact, the base plate and the grounding contact belong to a main circuit breaker core component, and the grounding copper sleeve, the grounding arm, the moving end copper sleeve, the electric connection medium and the static end copper sleeve belong to a grounding switch core component.
The static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are respectively matched with the static end grounding contact, the moving end grounding contact and the grounding point contact in a corresponding shaft sleeve mode, and the static end grounding contact, the moving end grounding contact and the grounding point contact are connected with the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve through sliding watchband contact fingers.
The static end copper sleeve and the movable end copper sleeve are cylindrical or umbrella-shaped structures with pressure equalizing annular features at the end parts of the outer ring and arc-shaped features at the end parts of the inner sleeve, the purpose of the pressure equalizing ring at the end parts of the outer ring is to equalize the electric field intensity, and the purpose of the arc-shaped end parts of the inner sleeve is to play a guiding role when the shaft sleeves are matched.
The grounding arm is a multi-layer cylindrical rod piece, the inside of the grounding arm is a grounding conductor, the outside of the grounding arm is coated by an insulating material, and the internal grounding conductor is electrically conductive with the static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve through plane contact.
The grounding method of the grounding arm is in a separable shaft sleeve matching mode, is synchronous with the matching of the static end copper sleeve and the movable end copper sleeve with the static end grounding contact and the movable end grounding contact, avoids a long-distance soft braided wire structure, is arranged on the low-voltage side, and is separated from the high-voltage end through the base plate.
The static end contact, the moving end contact and the grounding point contact are in a direct-acting mode, the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are in direct-acting mode, and types of operating mechanisms include manual, pneumatic and electric modes and are determined according to different application vehicle types and working condition environments.
In order to more clearly demonstrate the technical scheme and the technical effects provided by the invention, the following detailed description of the embodiments of the invention is given by way of specific examples.
Example 1
As shown in fig. 1, the grounding switch with the enhanced insulating moving and static contact structure of the invention comprises a static grounding contact 1, an insulator 2, a moving grounding contact 3, a base plate 4, a grounding point contact 5, a grounding point copper sleeve 6, a grounding arm 7, a moving end copper sleeve 8, a dielectric connection medium 9 and a static end copper sleeve 10, wherein the static grounding contact 1, the insulator 2, the moving grounding contact 3, the base plate 4 and the grounding point contact 5 belong to the core component of a main breaker B, and the grounding point copper sleeve 6, the grounding arm 7, the moving end copper sleeve 8, the dielectric connection medium 9 and the static end copper sleeve 10 belong to the core component of a grounding switch a. The static grounding contact 1, the moving grounding contact 3 and the insulator 2 are of an integrated structure, the insulator 2 and the grounding contact 5 are arranged on the base plate 4, the static copper bush 10, the moving copper bush 8 and the grounding copper bush 6 are internally provided with electric connection media 9 and are respectively arranged on the grounding arm 7, the static grounding contact 1, the moving grounding contact 3 and the grounding contact 5 are respectively matched with corresponding shaft sleeves in a form of sliding watchband contact finger, and the static grounding contact 1, the moving grounding contact 3 and the grounding contact 5 are respectively connected with the static copper bush 10, the moving copper bush 8 and the grounding copper bush 6. In this embodiment, the grounding switch a and the main breaker B are of an integral structure, the installation of the operating mechanism shares the base plate 4, and for ensuring structural strength and considering light weight design, the static end copper sleeve 10, the moving end copper sleeve 8 and the grounding point copper sleeve 6 are all made of aluminum alloy materials, and the diameter of the matched electric connection medium 9 is 30mm.
The ends of the static end grounding contact 1 and the movable end grounding contact 3 are of regular spherical structures, electric fields are uniformly distributed, the static end copper sleeve 10 and the movable end copper sleeve 8 are of cylindrical or umbrella-shaped structures with pressure equalizing annular features at the ends of the outer ring and arc-shaped features at the ends of the inner sleeve, the purpose of the pressure equalizing ring at the ends of the outer ring is to uniform electric field intensity, and the purpose of the arc of the ends of the inner sleeve is to play a guiding role when the shaft sleeves are matched. In the embodiment, the static end copper sleeve 10 and the movable end copper sleeve 8 are integrally of cylindrical structures, the diameter of an equalizing ring at the end part of the outer ring is 75mm, and the radius of a guiding circular arc at the end part of the inner sleeve is 8mm.
The grounding arm 7 is a multi-layer cylindrical rod piece, the inside of the grounding arm is a grounding conductor, the outside of the grounding arm is coated by an insulating material, and the internal grounding conductor is electrically conductive with the static end copper sleeve 10, the movable end copper sleeve 8 and the grounding point copper sleeve 6 through plane contact. In this embodiment, the inner grounding conductor of the grounding arm 7 is a copper braided wire, the outer insulating material is epoxy resin, the inner grounding conductor terminal is fixed with the static end copper sleeve 10, the moving end copper sleeve 8 and the grounding point copper sleeve 6 through bolts, and the bolts are hidden inside, so that adverse effects of the tip on electric field distribution are reduced.
The grounding method of the grounding arm 7 is in a separable shaft sleeve matching mode, is synchronous with the matching of the static end copper sleeve 10, the movable end copper sleeve 8, the static end grounding contact 1 and the movable end grounding contact 3, avoids a long-distance soft braided wire structure, is arranged on the low-voltage side, and is separated from the high-voltage end through the base plate 4 at intervals. In the present embodiment, the grounding point contact 5 is fixed to the base plate 4, and grounding is achieved by the grounding point of the main breaker B.
The static grounding contact 1, the moving grounding contact 3 and the grounding point contact 5 are in a direct-acting mode, the static copper sleeve 10, the moving copper sleeve 8 and the grounding point copper sleeve 6, and the types of operating mechanisms include manual, pneumatic and electric modes and are determined according to different application vehicle types and working condition environments. In this embodiment, the grounding switch a is applied to the in-vehicle high-voltage electrical apparatus integrated device by matching with the main breaker B, and the operating mechanism is of a pneumatic type.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims. The information disclosed in the background section herein is only for enhancement of understanding of the general background of the invention and is not to be taken as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
Claims (1)
1. The grounding switch with the reinforced insulating moving and static contact structure is characterized by comprising a static grounding contact, an insulator, a moving grounding contact, a base plate, a grounding point contact, a grounding point copper sleeve, a grounding arm, a moving end copper sleeve, an electric connection medium and a static end copper sleeve;
the fixed grounding contact, the movable grounding contact and the insulator are of an integrated structure, and the insulator and the grounding contact are arranged on the base plate;
The static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve are internally provided with the electric connecting medium, are both arranged on the grounding arm and are correspondingly matched with the static end grounding contact, the movable end grounding contact and the grounding point contact respectively;
The fixed end copper sleeve and the movable end copper sleeve are of cylindrical or umbrella-shaped structures with annular pressing ends and circular arc inner sleeve ends;
the grounding arm is a multi-layer cylindrical rod piece, the inside of the grounding arm is a grounding conductor, and the outside of the grounding arm is coated by an insulating material;
The grounding structure of the grounding arm is a separable shaft sleeve matching structure and is separated from the high-voltage end at intervals through the base plate;
The static end grounding contact, the moving end grounding contact and the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are connected by sliding watchband contact fingers;
The grounding switch and the main circuit breaker are of an integrated structure, and the installation of the operating mechanism shares a base plate;
The static end contact, the moving end contact and the grounding point contact are in a direct-acting mode, and the operating mechanism is a manual mechanism, a pneumatic mechanism or an electric mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467491.7A CN114203475B (en) | 2021-12-03 | 2021-12-03 | Grounding switch with reinforced insulating moving and static contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467491.7A CN114203475B (en) | 2021-12-03 | 2021-12-03 | Grounding switch with reinforced insulating moving and static contact structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114203475A CN114203475A (en) | 2022-03-18 |
| CN114203475B true CN114203475B (en) | 2024-06-28 |
Family
ID=80650428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111467491.7A Active CN114203475B (en) | 2021-12-03 | 2021-12-03 | Grounding switch with reinforced insulating moving and static contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114203475B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053869A (en) * | 1973-09-12 | 1975-05-13 | ||
| CN2540020Y (en) * | 2002-05-31 | 2003-03-12 | 唐嘉隆 | Vacuum arc-extinguishing chamber for circuit breaker |
| CN102376491A (en) * | 2011-10-18 | 2012-03-14 | 株洲庆云电力机车配件工厂有限公司 | High-voltage ground switch |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2907559C2 (en) * | 1979-02-27 | 1981-04-02 | Krone Gmbh, 1000 Berlin | Three-pole high-voltage switch, especially switch disconnectors |
| CN2060942U (en) * | 1989-10-04 | 1990-08-22 | 河南省信阳市高压开关厂 | Earth-contacting switch for high tension switch plant |
| EP1124242B1 (en) * | 1998-10-20 | 2004-06-16 | Hitachi, Ltd. | Vacuum switch and vacuum switch gear |
| JP2009240095A (en) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | Vacuum breaker |
| FR2937175B1 (en) * | 2008-10-14 | 2010-12-03 | Areva T & D Sa | ELECTRICAL SWITCHING APPARATUS HAVING TWO SWITCHES, SUCH AS A BAR BREAKER AND A GROUND DISCONNECT AND COMPRISING COMMON TRAINING MEANS OF THE MOBILE SWITCH CONTACTS. |
| WO2011020508A1 (en) * | 2009-08-20 | 2011-02-24 | Siemens Aktiengesellschaft | Disconnector for switchgear |
| KR101014205B1 (en) * | 2010-08-02 | 2011-02-14 | 주식회사 비츠로테크 | Cradle of vacuum circuit breaker |
| CN102254733A (en) * | 2011-07-25 | 2011-11-23 | 北京京东方真空电器有限责任公司 | Double-grounded three-station vacuum switch tube |
| JP2016012388A (en) * | 2012-09-12 | 2016-01-21 | 株式会社日立製作所 | Gas-insulation opening/closing equipment |
| CN105280431B (en) * | 2015-10-21 | 2017-11-17 | 福州大学 | Electromagnetic reluctance pulling force fast arc extinction earthed switch |
| CN105470032A (en) * | 2015-11-11 | 2016-04-06 | 南车株洲电力机车有限公司 | Electric locomotive and grounding switch |
| CN105590769B (en) * | 2016-02-14 | 2018-06-22 | 河南平高电气股份有限公司 | A kind of disconnecting switch |
| CN205508670U (en) * | 2016-03-04 | 2016-08-24 | 福建省宏科电力科技有限公司 | Intelligent combination electric isolation and ground connection interconnection device on post convenient to use |
| DE102016207292B4 (en) * | 2016-04-28 | 2019-10-17 | Siemens Aktiengesellschaft | Electrical protection device and transformer with such |
| CN207038418U (en) * | 2017-06-12 | 2018-02-23 | 中车株洲电力机车有限公司 | Locomotive and its vacuum circuit breaker |
| JP6953329B2 (en) * | 2018-03-06 | 2021-10-27 | 株式会社日立産機システム | Switch |
| CN111446090A (en) * | 2020-03-27 | 2020-07-24 | 株洲庆云电力机车配件工厂有限公司 | Cylinder driven earthing switch |
-
2021
- 2021-12-03 CN CN202111467491.7A patent/CN114203475B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053869A (en) * | 1973-09-12 | 1975-05-13 | ||
| CN2540020Y (en) * | 2002-05-31 | 2003-03-12 | 唐嘉隆 | Vacuum arc-extinguishing chamber for circuit breaker |
| CN102376491A (en) * | 2011-10-18 | 2012-03-14 | 株洲庆云电力机车配件工厂有限公司 | High-voltage ground switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114203475A (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2077569B1 (en) | Vacuum switchgear | |
| US20030094438A1 (en) | Vacuum interrupter with two contact systems | |
| ATE426910T1 (en) | VACUUM CLOSURE SWITCH | |
| CN114203475B (en) | Grounding switch with reinforced insulating moving and static contact structure | |
| CN102290730B (en) | Solid insulation sealed component for high-voltage alternating-current vacuum switch cabinet | |
| CN110729684A (en) | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof | |
| CN100563070C (en) | Gas isolated combination switch device | |
| CN112467597A (en) | Electric connection assembly and high-voltage switch using same | |
| CN207303817U (en) | Compound inslation switchgear | |
| EP3459784B1 (en) | Branching unit and vehicular system | |
| CN204558348U (en) | Combined vacuum breaker | |
| US3042918A (en) | Antenna ice clearing system | |
| CN202839450U (en) | Vacuum arc extinguishing chamber | |
| CN201210461Y (en) | 35kV outdoor AC high isolating switch | |
| CN201298490Y (en) | Gas insulation type load switch | |
| JPH0134487Y2 (en) | ||
| CN212063247U (en) | High-power PT handcart | |
| CN203242919U (en) | Main transformer plug-in type switch for transformer substation | |
| US11688572B2 (en) | Inline disconnect for multiphase electric utility line applications | |
| US20080105654A1 (en) | Polyphase Switching Device Comprising at Least Three Similar Interrupter Units | |
| JP2013206665A (en) | Vacuum switch | |
| CN217086401U (en) | Insulation structure of dry tap switch | |
| CN102244372A (en) | Integrated vacuum circuit breaker | |
| CN101331571A (en) | Electric switchgear, particularly high-voltage circuit-breaker, comprising a housing | |
| CN108879454B (en) | Combined electric vehicle and combined switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |