CN114203475A - Grounding switch with reinforced insulation moving and static contact structure - Google Patents
Grounding switch with reinforced insulation moving and static contact structure Download PDFInfo
- Publication number
- CN114203475A CN114203475A CN202111467491.7A CN202111467491A CN114203475A CN 114203475 A CN114203475 A CN 114203475A CN 202111467491 A CN202111467491 A CN 202111467491A CN 114203475 A CN114203475 A CN 114203475A
- Authority
- CN
- China
- Prior art keywords
- grounding
- contact
- static
- copper sleeve
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 64
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 claims abstract description 88
- 239000010949 copper Substances 0.000 claims abstract description 88
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000005684 electric field Effects 0.000 abstract description 14
- 238000009826 distribution Methods 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 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
- 239000008358 core component Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000463 material Substances 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- -1 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 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
- 238000009434 installation Methods 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
- 239000000203 mixture Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a grounding switch with an insulation-enhanced moving and static contact structure, which comprises a static end grounding contact, an insulator, a moving end 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 quiet end ground contact, move end ground contact and insulator structure as an organic whole, insulator and ground point contact are installed on the baseplate, and quiet end copper sheathing, move end copper sheathing and the inside electric connection medium that is provided with of ground point copper sheathing to all install on the earthing arm, correspond the cooperation with quiet end ground contact, move end ground contact and ground point contact respectively. The high-voltage circuit breaker has the advantages of ingenious structure, simple principle, good insulation safety and high universality, can improve the electric field distribution around the main circuit breaker, promotes the corona starting voltage, and is particularly suitable for the application of the high-voltage electric appliance integration technology.
Description
Technical Field
The invention relates to a high-voltage insulation technology, in particular to a grounding switch with a movable and fixed contact structure for enhancing insulation.
Background
In the field of rail transit, the grounding switch is a protection switch of a network side high-voltage system, the grounding switch is matched with two ends of a fracture of a vacuum circuit breaker to realize bilateral grounding of a contact network and a transformer, the grounding switch is located at an operation position in the operation process of an electric locomotive and a motor train unit, and when the maintenance operation is needed, the grounding switch is operated to the grounding position.
The most common structure of the matching of the grounding switch and the vacuum circuit breaker is a grounding clip and a grounding contact or a grounding knife switch, the vacuum circuit breaker is used as a live action switch of a high-voltage main loop, operation overvoltage can be generated in the process of switching on and switching off the main loop, the problems of poor electric field uniformity and low corona inception voltage exist in the conventional grounding contact or grounding knife switch structure, particularly in a closed high-voltage box or a network side cabinet, the electric field distribution is complex, the grounding contact is likely to have a grounding contact breakdown discharge fault under the induction of specific overvoltage, vehicle marshalling and other working conditions, the grounding clip structure matched with the grounding switch is also not beneficial to uniform electric field distribution when the high-voltage end is negative, and insulation safety risks exist.
At present, the technical direction of the net side high voltage system of the rolling stock is the integration and miniaturization design, so the structural characteristics and the electric field uniformity of each part of the high voltage electrical appliance are very important for the overall layout design and the insulation reliability. In order to improve the corona inception voltage of a high-voltage end grounding contact of a vacuum circuit breaker, improve the electric field distribution uniformity of the vacuum circuit breaker and a grounding switch area, practically service and support the development of a network side high-voltage electric appliance integration technology, the development and the research of a grounding switch with a movable and fixed contact structure for enhancing insulation are urgent.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a grounding switch with a movable and fixed contact structure with enhanced insulation, which aims to solve the technical problems in the prior art. The high-voltage circuit breaker has the advantages of ingenious structure, simple principle, good insulation safety and high universality, can improve the electric field distribution around the main circuit breaker, promotes the corona starting voltage, and is particularly suitable for the application of the high-voltage electric appliance integration technology.
The purpose of the invention is realized by the following technical scheme:
the grounding switch with the insulation-enhanced moving and static contact structure comprises a static end grounding contact, an insulator, a moving end 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 static end grounding contact, the moving end grounding contact and the insulator are of an integral structure, and the insulator and the grounding point contact are arranged on the base plate;
the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are internally provided with the electric connection medium, are all arranged on the grounding arm and are respectively correspondingly matched with the static end grounding contact, the moving end grounding contact and the grounding point contact.
Compared with the prior art, the grounding switch with the insulation-enhanced moving contact and static contact structure provided by the embodiment of the invention has the advantages that the moving contact and static contact and the grounding copper sleeve are ingenious in structural design and outstanding in electrical performance, the electric field distribution around the main circuit breaker can be greatly improved, the corona onset voltage is improved, the insulation safety is improved, and the adverse effect of overvoltage of over-phase splitting operation is reduced; the grounding arm has novel and unique structural characteristics and a grounding mode, improves the insulating property while reducing the space and ensuring the reliable grounding of the two ends, and particularly obviously improves the insulating capability under the working condition of negative polarity.
Drawings
Fig. 1 is a schematic structural principle diagram of a moving and static contact structure and a grounding switch provided in an embodiment of the present invention;
in the figure:
1. static end grounding contact 2, insulator 3, moving end grounding contact 4, base plate 5, grounding point contact 6, grounding point copper sleeve 7, grounding arm 8, moving end copper sleeve 9, electric connection medium 10, static end copper sleeve A, grounding switch B and main breaker
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below by combining the attached drawings in the embodiment of the invention; it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended to limit the invention to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The terms that may be used herein are first described as follows:
the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".
The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.
The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.
Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.
The grounding switch with the insulation-enhanced moving and static contact structure comprises a static end grounding contact, an insulator, a moving end 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 static end grounding contact, the moving end grounding contact and the insulator are of an integral structure, and the insulator and the grounding point contact are arranged on the base plate;
the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are internally provided with the electric connection medium, are all arranged on the grounding arm and are respectively correspondingly matched with the static end grounding contact, the moving end grounding contact and the grounding point contact.
The ends of the static end grounding contact and the moving end grounding contact are both regular spherical structures, and the static end copper sleeve and the moving end copper sleeve are both cylindrical or umbrella-shaped structures with the outer ring end part being in an annular shape with pressure and the inner sleeve end part being in an arc shape.
The grounding arm is a multi-layer cylindrical rod piece, a grounding conductor is arranged in the grounding arm, 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 through the base plate at intervals.
The static end grounding contact, the moving end grounding contact and the grounding point contact are in a direct-acting mode with the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve, and the operating mechanism is a manual mechanism, a pneumatic mechanism and/or an electric mechanism.
In conclusion, the grounding switch with the insulation-enhanced moving and static contact structure provided by the embodiment of the invention has the advantages of ingenious structure, simple principle, good insulation safety and high universality, can improve the electric field distribution around the main circuit breaker and improve the corona voltage, and is particularly suitable for the application of the high-voltage electrical apparatus integration technology.
The grounding point copper sleeve, the grounding arm, the movable end copper sleeve, the electric connection medium and the static end copper sleeve belong to a core part of a grounding switch.
The static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve are respectively matched with the static end grounding contact, the movable end grounding contact and the grounding point contact in a corresponding shaft sleeve mode, and the static end grounding contact, the movable end grounding contact and the grounding point contact are connected with the static end copper sleeve, the movable end copper sleeve and the grounding point copper sleeve through contact fingers of a sliding watchband.
The ends of the static end grounding contact and the moving end grounding contact are regular spherical structures, electric fields are uniformly distributed, the static end copper sleeve and the moving end copper sleeve are cylindrical or umbrella-shaped structures with the outer ring end part having a voltage-sharing annular characteristic and the inner sleeve end part having a circular arc characteristic, the voltage-sharing ring at the outer ring end part aims at equalizing the electric field intensity, and the circular arc at the inner sleeve end part aims at playing a role of guiding 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 in plane contact with the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve for conduction.
The grounding method of the grounding arm is in a separable shaft sleeve matching mode, and is synchronous with the static end copper sleeve, the moving end copper sleeve, the static end grounding contact and the moving end grounding contact in matching, so that a long-distance soft braided wire structure is avoided, the grounding method is arranged on a low-voltage side, and the grounding method and the high-voltage side are separated through the base plate at intervals.
The static end grounding contact, the moving end grounding contact and the grounding point contact are in a direct-moving mode with the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve, and the type of the operating mechanism is not limited to manual operation, pneumatic operation and electric operation and is determined according to different application vehicle types and working condition environments.
In order to more clearly show the technical solutions and the technical effects provided by the present invention, the following detailed description is provided for the embodiments of the present invention with specific embodiments.
Example 1
As shown in fig. 1, the grounding switch with the insulation-enhanced moving and static contact structure of the present invention includes a static end grounding contact 1, an insulator 2, a dynamic end grounding contact 3, a base plate 4, a grounding point contact 5, a grounding point copper sleeve 6, a grounding arm 7, a dynamic end copper sleeve 8, an electrical connection medium 9, and a static end copper sleeve 10, wherein the static end grounding contact 1, the insulator 2, the dynamic end grounding contact 3, the base plate 4, and the grounding point contact 5 belong to a core component of a main circuit breaker B, and the grounding point copper sleeve 6, the grounding arm 7, the dynamic end copper sleeve 8, the electrical connection medium 9, and the static end copper sleeve 10 belong to a core component of a grounding switch a. Quiet end ground contact 1, move end ground contact 3 and insulator 2 structure as an organic whole, insulator 2 and ground point contact 5 are installed on base plate 4, quiet end copper sheathing 10, move end copper sheathing 8 and the inside electric connection medium 9 that is provided with of ground point copper sheathing 6 to all install on ground arm 7, correspond the axle sleeve form cooperation with quiet end ground contact 1, move end ground contact 3 and ground point contact 5 respectively, be the slip between quiet end ground contact 1, move end ground contact 3 and ground point contact 5 and quiet end copper sheathing 10, move end copper sheathing 8 and the ground point copper sheathing 6 and touch the finger to be connected. In this embodiment, earthing switch A and main circuit breaker B formula structure as an organic whole, operating device's installation sharing base plate 4, for the lightweight design of guaranteeing structural strength simultaneous consideration, quiet end copper sheathing 10, move end copper sheathing 8 and ground point copper sheathing 6 are the aluminum alloy material, and the supporting electric connection medium 9 diameter of connecting with it is 30 mm.
The ends of the static end grounding contact 1 and the moving end grounding contact 3 are regular spherical structures, electric fields are uniformly distributed, the static end copper sleeve 10 and the moving end copper sleeve 8 are cylindrical or umbrella-shaped structures with the outer ring end having a voltage-sharing annular characteristic and the inner sleeve end having a circular arc characteristic, the voltage-sharing ring at the outer ring end aims at equalizing the electric field intensity, and the circular arc at the inner sleeve end aims at guiding when the shaft sleeves are matched. In this embodiment, the stationary end copper sleeve 10 and the moving end copper sleeve 8 are integrally cylindrical structures, the diameter of the equalizing ring at the end of the outer ring is 75mm, and the radius of the guiding arc at the end of the inner sleeve is 8 mm.
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 in plane contact with the static end copper sleeve 10, the moving end copper sleeve 8 and the grounding point copper sleeve 6 for conduction. In this embodiment, the internal grounding conductor of the grounding arm 7 is a copper braided wire, the external insulating material is epoxy resin, the internal grounding conductor terminal is fixed with the stationary end copper sleeve 10, the movable end copper sleeve 8 and the grounding point copper sleeve 6 through bolts, and the bolts are hidden inside, so that the adverse effect of the tip on the electric field distribution is reduced.
The grounding method of the grounding arm 7 is a separable shaft sleeve matching form, and is synchronous with the matching of the static end copper sleeve 10, the moving end copper sleeve 8, the static end grounding contact 1 and the moving end grounding contact 3, so that a long-distance soft braided wire structure is avoided, the soft braided wire structure is arranged on a low-voltage side, and the soft braided wire structure and the high-voltage end are separated through the base plate 4 at intervals. In this 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 end grounding contact 1, the moving end grounding contact 3 and the grounding point contact 5 are in a direct-acting mode with the static end copper sleeve 10, the moving end copper sleeve 8 and the grounding point copper sleeve 6, and the types of the operating mechanisms include manual operation, pneumatic operation and electric operation, and are determined according to different application vehicle types and working condition environments. In this embodiment, the grounding switch a is matched with the main breaker B and applied to the high-voltage electrical apparatus integrated device under the vehicle, and the operating mechanism is of a pneumatic type.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (5)
1. A grounding switch with a dynamic and static contact structure with enhanced insulation is characterized by comprising a static end grounding contact, an insulator, a dynamic end grounding contact, a base plate, a grounding point contact, a grounding point copper sleeve, a grounding arm, a dynamic end copper sleeve, an electric connection medium and a static end copper sleeve;
the static end grounding contact, the moving end grounding contact and the insulator are of an integral structure, and the insulator and the grounding point contact are arranged on the base plate;
the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve are internally provided with the electric connection medium, are all arranged on the grounding arm and are respectively correspondingly matched with the static end grounding contact, the moving end grounding contact and the grounding point contact.
2. The grounding switch with the insulation-enhanced moving and static contact structure as claimed in claim 1, wherein the ends of the static end grounding contact and the moving end grounding contact are regular spherical structures, and the static end copper sleeve and the moving end copper sleeve are cylindrical or umbrella-shaped structures with an outer ring end portion having a ring shape with pressure and an inner sleeve end portion having a circular arc shape.
3. The grounding switch with insulation enhanced moving and static contact structure as recited in claim 2, wherein said grounding arm is a multi-layer cylindrical rod member, the inside is a grounding conductor, and the outside is covered by an insulating material.
4. The grounding switch with insulation enhanced moving and static contact structure as recited in claim 3, wherein the grounding structure of said grounding arm is a separable bushing engaging structure and is spaced apart from the high voltage end by said base plate.
5. The grounding switch with insulation enhanced moving and grounding contact structure as claimed in any one of claims 1 to 4, wherein the static end grounding contact, the moving end grounding contact and the grounding point contact are in a direct-acting manner with the static end copper sleeve, the moving end copper sleeve and the grounding point copper sleeve, and the operating mechanism is a manual mechanism, a pneumatic mechanism and/or an electric mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467491.7A CN114203475B (en) | 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 | Grounding switch with reinforced insulating moving and static contact structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114203475A true CN114203475A (en) | 2022-03-18 |
| CN114203475B CN114203475B (en) | 2024-06-28 |
Family
ID=
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053869A (en) * | 1973-09-12 | 1975-05-13 | ||
| DE2907559B1 (en) * | 1979-02-27 | 1980-06-12 | Krone Gmbh | Three-pole high-voltage switch, in particular load disconnector |
| 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 |
| WO2000024016A1 (en) * | 1998-10-20 | 2000-04-27 | Hitachi, Ltd. | Vacuum switch and vacuum switch gear |
| CN2540020Y (en) * | 2002-05-31 | 2003-03-12 | 唐嘉隆 | Vacuum arc-extinguishing chamber for circuit breaker |
| JP2009240095A (en) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | Vacuum breaker |
| CN101728784A (en) * | 2008-10-14 | 2010-06-09 | 阿海珐输配电股份公司 | Switch apparatus and control mechanism for the same |
| KR101014205B1 (en) * | 2010-08-02 | 2011-02-14 | 주식회사 비츠로테크 | Cradle of vacuum circuit breaker |
| WO2011020508A1 (en) * | 2009-08-20 | 2011-02-24 | Siemens Aktiengesellschaft | Disconnector for switchgear |
| 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 |
| 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 |
| WO2014041857A1 (en) * | 2012-09-12 | 2014-03-20 | 株式会社日立製作所 | Gas-insulated switchgear |
| CN105280431A (en) * | 2015-10-21 | 2016-01-27 | 福州大学 | Grounding switch capable of extinguishing arc quickly through electromagnetic reluctance tension |
| 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 |
| CN105590769A (en) * | 2016-02-14 | 2016-05-18 | 河南平高电气股份有限公司 | 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 |
| DE102016207292A1 (en) * | 2016-04-28 | 2017-11-02 | Siemens Aktiengesellschaft | Electric protection device |
| 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 |
| 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 |
| CN111758142A (en) * | 2018-03-06 | 2020-10-09 | 株式会社日立产机系统 | Switch with a switch body |
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053869A (en) * | 1973-09-12 | 1975-05-13 | ||
| DE2907559B1 (en) * | 1979-02-27 | 1980-06-12 | Krone Gmbh | Three-pole high-voltage switch, in particular load disconnector |
| 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 |
| WO2000024016A1 (en) * | 1998-10-20 | 2000-04-27 | Hitachi, Ltd. | Vacuum switch and vacuum switch gear |
| CN2540020Y (en) * | 2002-05-31 | 2003-03-12 | 唐嘉隆 | Vacuum arc-extinguishing chamber for circuit breaker |
| JP2009240095A (en) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | Vacuum breaker |
| US8389884B2 (en) * | 2008-10-14 | 2013-03-05 | Areva T & D Sas | Electrical switch apparatus having two interrupters, such as a busbar disconnector and a grounding disconnector, and including common actuator means for the movable contacts of the interrupters |
| CN101728784A (en) * | 2008-10-14 | 2010-06-09 | 阿海珐输配电股份公司 | Switch apparatus and control mechanism for the same |
| WO2011020508A1 (en) * | 2009-08-20 | 2011-02-24 | Siemens Aktiengesellschaft | Disconnector for switchgear |
| EP2467865A1 (en) * | 2009-08-20 | 2012-06-27 | Siemens AG | 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 |
| 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 |
| WO2014041857A1 (en) * | 2012-09-12 | 2014-03-20 | 株式会社日立製作所 | Gas-insulated switchgear |
| CN105280431A (en) * | 2015-10-21 | 2016-01-27 | 福州大学 | Grounding switch capable of extinguishing arc quickly through electromagnetic reluctance tension |
| 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 |
| CN105590769A (en) * | 2016-02-14 | 2016-05-18 | 河南平高电气股份有限公司 | 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 |
| DE102016207292A1 (en) * | 2016-04-28 | 2017-11-02 | Siemens Aktiengesellschaft | Electric protection device |
| 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 |
| CN111758142A (en) * | 2018-03-06 | 2020-10-09 | 株式会社日立产机系统 | Switch with a switch body |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4568765B2 (en) | Vacuum switchgear | |
| US8178801B2 (en) | Electrical switching apparatus including a carrier, and pole for the same | |
| ATE426910T1 (en) | VACUUM CLOSURE SWITCH | |
| CN110729684A (en) | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof | |
| CN102290730B (en) | Solid insulation sealed component for high-voltage alternating-current vacuum switch cabinet | |
| US11107652B2 (en) | Circuit breaker for gas insulated switchgear | |
| CN103828155B (en) | Tank-type vacuum interrupter | |
| CN114203475A (en) | Grounding switch with reinforced insulation moving and static contact structure | |
| CN114203475B (en) | Grounding switch with reinforced insulating moving and static contact structure | |
| CN100563070C (en) | Gas isolated combination switch device | |
| CN102959815A (en) | Cubicle-type gas-insulated switching apparatus | |
| EP3459784B1 (en) | Branching unit and vehicular system | |
| CN204558348U (en) | Combined vacuum breaker | |
| CN201629495U (en) | Wall-through shielded bushing of high-voltage switchgear cabinet | |
| CN217086401U (en) | Insulation structure of dry tap switch | |
| CN201298490Y (en) | Gas insulation type load switch | |
| JP5815449B2 (en) | Vacuum circuit breaker | |
| CN219627218U (en) | Voltage transformer handcart for high-voltage switch cabinet body | |
| US11688572B2 (en) | Inline disconnect for multiphase electric utility line applications | |
| CN219394034U (en) | High tension switchgear convenient to cable installation and maintenance | |
| CN214753434U (en) | Transmission mechanism for grounding knife, switch cabinet with transmission mechanism and electrical equipment | |
| CN203242919U (en) | Main transformer plug-in type switch for transformer substation | |
| CN202721096U (en) | 72.5 kilovolt double frequency circuit breaker | |
| CN102244372A (en) | Integrated vacuum circuit breaker | |
| CN207664510U (en) | A kind of novel solid insulation cabinet movement |
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 |