CN105448578A - Isolation switch and conductor thereof - Google Patents
Isolation switch and conductor thereof Download PDFInfo
- Publication number
- CN105448578A CN105448578A CN201510831989.5A CN201510831989A CN105448578A CN 105448578 A CN105448578 A CN 105448578A CN 201510831989 A CN201510831989 A CN 201510831989A CN 105448578 A CN105448578 A CN 105448578A
- Authority
- CN
- China
- Prior art keywords
- leading body
- head
- conductor
- moved end
- contact
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/62—Heating or cooling of contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an isolation switch and a conductor thereof. The conductor of the isolation switch comprises a main conductor; the head of the main conductor is integratedly provided with an annular housing-shaped head part shielding structure for sleeving the outer circumference of a moving contact or a static contact; the head part shielding structure is coaxial with a main conductor; a rotating bus is a rotating body of a curve which is bent along an arc track from the head part of the main conductor; through the combination of the traditional isolation switch conductor and the shielding housing, the surface area is increased through the head part shielding structure, and the current conduction is realized; the head part shielding structure can perform shielding on the head part of the main conductor and uniformly isolates the power plant inside the switch; in the meantime, the integration design of head part shielding structure on the head part of the main conductor eliminates the bolt connection between the traditional conductor and the shielding housing, and reduces the kinds and amount of the parts inside the isolation switch. The compact structure design of the conductor enables the isolation switch to be simple and easy to disassemble.
Description
Technical field
The present invention relates to a kind of isolating switch and conductor thereof.
Background technology
GIS (GasInsulatedmetal-enclosedSwitchgear, SF6 Cubicle Gas-Insulated Switchgear)/HGIS (HalfGasInsulatedmetal-enclosedSwitchgear, combined type SF6 Cubicle Gas-Insulated Switchgear) because of plurality of advantages such as its compact conformation, floor space are little, environmental resistance ability is strong, handling safety, good looking appearances, be widely used in transformer station in recent years.GIS/HGIS is as the nucleus equipment of super-huge transformer station; it organically combines primarily of parts such as circuit breaker, isolating switch, earthed switch, instrument transformer, lightning arrester, cable termination, bus, sleeve pipes; outside is protected by metal shell, fills with SF6 insulating gas in housing.
Isolating switch is one of the critical piece in GIS composition, its effect: operationally carry loop rated current and carrying circuit fault current in short-term; When overhaul of line breaker, provide safe and reliable isolation fracture; When changing main bus bar in power station, play a part to switch main bus bar.Existing isolating switch is " a kind of heavy current disconnecting switches structure " disclosed in Chinese patent literature CN203552958U, comprise towards one end of fracture is the fixed contact of uncovered shape and the pluggable uncovered interior moving contact to fixed contact, the periphery of the opening end of fixed contact is set with quiet end shield, quiet end shield is fixed on and is on the quiet end conductor of fixed contact away from one end of fracture, and is provided with fixed contact on quiet end conductor; Moving contact is hollow-core construction, the periphery of moving contact is set with moved end radome, the inwall of moved end radome and the outer peripheral face of moving contact are conducted electricity by the watchband-shaped contactor be inlaid on the inwall of moved end radome and are connected, moved end radome is fixed with away from one end of fracture the moved end conductor be sleeved on the periphery of moving contact, is also provided with and is connected to the connection connecting lever of moving contact away from one end of fracture in the conductor of moved end.And conductor is as the main carriers of loaded current in isolating switch, its structure and the performance of galvanization ability to isolating switch play a decisive role.The conductor of 550kVGIS/HGIS isolating switch, when designing, should be considered temperature rise (through-current capability) problem, consider Insulation Problems again.Not exceeding standard to control temperature rise of conductor, often will increase the surface area of conductor, this just makes the corresponding increase of the housing area of isolating switch; Consider Insulation Problems, then need increase shielding, with electric field between uniform conductor and housing at end conductor.Finally cause isolating switch internal structure complicated, parts kind is many, and assembly work amount is large, and isolated switchgear cannot accomplish miniaturization, and holistic cost is higher.
Summary of the invention
The object of this invention is to provide a kind of when ensureing temperature rise and insulation, the isolating switch conductor tightly urged of structure, present invention also offers a kind of isolating switch using this conductor simultaneously.
In order to realize above object, in the present invention, the technical scheme of isolating switch conductor is as follows:
Isolating switch conductor, comprise for conducting electricity the leading body connecting moving contact or fixed contact, the two ends of definition leading body are respectively head for arranging towards fracture and the afterbody for fracture layout dorsad, the head of leading body is wholely set the hood-like head shielding structure of annular on the periphery for being set in moving contact or fixed contact, the rotary body of the head shielding structure curve that to be, rotary generatrix coaxial with leading body be bends along arc track from leading body head.
Leading body is the moved end leading body for being connected to the moved end conductor on the periphery of moving contact by fingertip conduction, moved end leading body is shell-like, described head shielding structure be the head of automatic end leading body start first outwards, after the flange that rearwardly turns down, the tip position of head shielding structure and the outer peripheral face interval of moved end leading body are arranged.
The outer peripheral face of moved end leading body is that the internal face of moved end leading body is the inner cylinder face coaxial with conical surface section from the head shielding structure rearwardly conical surface that increases gradually of external diameter.
The afterbody of moved end leading body is wholely set for holding the afterbody shielding construction connecting connecting lever, and afterbody shielding construction is the rotary body coaxial with leading body.
Afterbody shielding construction is hollow ball-shape, and the head of afterbody shielding construction offers the connection opening, the tail end that are communicated with the tail end mouth of moved end leading body and is provided with the drive openings of passing for the drive disk assembly being connected connecting lever.
In the present invention, the technical scheme of isolating switch is as follows:
Isolating switch, comprise moving contact, moved end conductor, fixed contact, quiet end conductor, dynamic, fixed contact is coaxially positioned opposite, quiet end conductor comprises the quiet end leading body conducting electricity and be connected on fixed contact, moved end conductor comprises the moved end leading body conducting electricity and be connected on moving contact, definition is dynamic, the afterbody that the two ends of quiet end leading body are respectively head for arranging towards fracture and arrange for fracture dorsad, the head of moved end leading body and/or quiet end leading body is wholely set the hood-like head shielding structure of annular on the periphery for being set in corresponding contact, head shielding structure is coaxial with residing leading body, rotary generatrix is the rotary body of the curve bent along arc track from the head of residing leading body.
The head of moved end leading body has been wholely set head shielding structure, moved end leading body is shell-like, described head shielding structure be the head of automatic end leading body start first outwards, after the flange that rearwardly turns down, the tip position of head shielding structure and the outer peripheral face interval of moved end leading body are arranged.
The afterbody of moved end leading body is wholely set for holding the afterbody shielding construction connecting connecting lever, and afterbody shielding construction is the rotary body coaxial with leading body.
Moved end conductor is square conductor, and the bottom of afterbody shielding construction is fixed with moved end insulating basin, the axis of moved end insulating basin and the axes normal of moved end leading body.
Moving contact comprises the moving arcing contact that coaxial guiding movement is assemblied in the head opening that dynamic main contact in the leading body of moved end and head thereof are fixed, the quiet main contact that fixed contact comprises head opening and inserts for dynamic main contact and interior assembling thereof for inserting the static arc contact in moving arcing contact.
In the present invention, the conductor of conventional isolation switches and radome unite two into one by conductor, both can increase surface area by head shielding structure, and improve radiating efficiency, also with regard to making the problem of temperature rise of whole conductor be ensured, achieve the effect of On current; And head shielding structure also can play shielding action at the head of leading body, the power plant of even isolating switch inside, simultaneously, the bolt that head shielding structure eliminates between conventional conductor with radome at the Integral design of leading body head is connected, decrease parts kind and quantity in isolating switch, reduce assembly work amount, thus by the tightly short design of the structure of conductor, such that the structure of isolating switch is simple, easy accessibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment under "on" position of isolating switch of the present invention;
Fig. 2 is the structural representation of isolating switch after removing shell, under gate-dividing state in Fig. 1.
Embodiment
The embodiment of isolating switch in the present invention: as depicted in figs. 1 and 2, this isolating switch is a kind of HGIS/GIS isolating switch, comprise the moving contact of housing 14 and interior assembling thereof, fixed contact, moving contact and fixed contact are coaxially positioned opposite, fracture between moving contact and fixed contact is isolation fracture, definition moving contact and fixed contact are one end of head, dorsad isolation fracture towards one end of isolation fracture is afterbody, and moving contact is fixed in housing 14 by moved end conductor, fixed contact is fixed in housing 14 by quiet end conductor 5.
Moving contact comprises columned dynamic main contact 3, the head end of dynamic main contact 3 offers circular blind hole, the moving arcing contact 4 be fixed on by trip bolt on the inner face of blind end is equipped with in blind hole, moving arcing contact 4 is in tubular, and namely the head of moving arcing contact 4 is opening end, afterbody is blind end; The afterbody of dynamic main contact 3 is connected with the connection connecting lever driving its movement vertically, and this connection connecting lever stretches out from the afterbody of housing 14, to be connected the operating mechanism be in outside housing 14 by drive disk assembly.Moved end conductor is the rotary body of casting, and moved end conductor coaxial is sleeved on the periphery of dynamic main contact 3, and moved end conductor is made up of the head shielding cover 11 be rearwardly integrally formed by connecting from head, moved end leading body 12 and afterbody radome 13.Moved end leading body 12 is shell-like, the internal face of moved end leading body 12 is the inner cylinder face coaxial with dynamic main contact 3, and on the internal face of moved end leading body 12, the watchband-shaped contactor 2 be looped around on dynamic main contact 3 periphery is embedded with by annular groove, to be conducted electricity with moved end leading body 12 by watchband-shaped contactor 2 to make main contact 3 and be connected; The outer peripheral face of moved end leading body 12 is from the head rearwardly conical surface that increases gradually of external diameter, rearwardly increases gradually from head to make the wall thickness of whole moved end leading body 12.Head shielding cover 11 is coaxial with moved end leading body 12 and rotary generatrix is the rotary body of the curve bent along arc track from leading body head, simultaneously head shielding cover 11 be again the head of automatic end leading body 12 outwards start first, after the flange that rearwardly turns down, the tip position of head shielding cover 11 and the outer peripheral face interval of moved end leading body 12 are arranged.Afterbody radome 13 is hollow ball-shape, under the prerequisite of kelvin effect considering electric current, decrease the use amount of material, the inner connection connecting lever that also can hold divide-shut brake, the head of afterbody shielding construction offers the connection opening, the tail end that are communicated with the tail end mouth of moved end leading body 12 and is provided with the drive openings that drive disk assembly that confession is connected connecting lever passes.This moved end conductor is square conductor, the bottom of afterbody shielding construction and the embedded component of moved end insulating basin 9 are directly bolted to connection, avoid and also needed a strutting piece to be connected with moved end insulating basin 9 transition in structure in the past, decrease assembly work amount, this part-structure is simplified greatly, overall structure reduces, and the axes normal of the axis of moved end insulating basin 9 and moved end leading body 12.
The afterbody of quiet end conductor 5 is fixed on housing 14, and the head of quiet end conductor 5 is bolted quiet end shield 6, and assembling is fixed on the fixed contact of quiet end conductor 5 head in quiet end shield 6.Fixed contact is made up of quiet main contact, static arc contact 8 and quiet end fingertip 7.The head opening of quiet main contact and inserting for dynamic main contact 3, static arc contact 8 is disposed coaxially in quiet main contact, and the afterbody of static arc contact 8 is fixed in the head end of quiet end conductor 5, quiet end fingertip 7 is wholely set on quiet main contact, and quiet end fingertip 7 is in the gap of quiet end conductor 5 and quiet end shield 6.
In the present embodiment, isolating switch is operationally, and dynamic main contact 3 motion is docked at the head of fixed contact, with the conducting of quiet end fingertip 7, and moving arcing contact 4 and static arc contact 8 conducting simultaneously.At the afterbody of dynamic main contact 3, dynamic main contact 3 is by watchband-shaped contactor 2 and moved end conductor conducting, and moved end conductor is by metal insert and external conductor 10 conducting in insulation basin.Electric current successively by quiet end conductor 5, quiet end fingertip 7, dynamic main contact 3, watchband-shaped contactor 2, moved end conductor, external conductor 10, thus flows out isolating switch, flows in major loop.Isolating switch realizes a point resultant motion by the connection connecting lever of moving contact afterbody.
The embodiment of isolating switch conductor in the present invention: in the present embodiment, the structure of isolating switch conductor is identical with the structure of moved end conductor in above-described embodiment, therefore repeats no more.
In the above-described embodiments, only moved end conductor adopts radome and the integrated structure of conductor, and in other embodiments, quiet end conductor also can adopt radome and the integrated structure of conductor.
In the above-described embodiments, moved end conductor is square, and in other embodiments, moved end conductor also can be linear pattern, and now the tail end of moved end conductor is directly fixed on the insulating basin on housing.
Claims (10)
1. isolating switch conductor, comprise for conducting electricity the leading body connecting moving contact or fixed contact, the two ends of definition leading body are respectively head for arranging towards fracture and the afterbody for fracture layout dorsad, it is characterized in that, the head of leading body is wholely set the hood-like head shielding structure of annular on the periphery for being set in moving contact or fixed contact, the rotary body of the head shielding structure curve that to be, rotary generatrix coaxial with leading body be bends along arc track from leading body head.
2. isolating switch conductor according to claim 1, it is characterized in that, leading body is the moved end leading body for being connected to the moved end conductor on the periphery of moving contact by fingertip conduction, moved end leading body is shell-like, described head shielding structure be the head of automatic end leading body start first outwards, after the flange that rearwardly turns down, the tip position of head shielding structure and the outer peripheral face interval of moved end leading body are arranged.
3. isolating switch conductor according to claim 2, is characterized in that, the outer peripheral face of moved end leading body is that the internal face of moved end leading body is the inner cylinder face coaxial with conical surface section from the head shielding structure rearwardly conical surface that increases gradually of external diameter.
4. isolating switch conductor according to claim 2, is characterized in that, the afterbody of moved end leading body is wholely set for holding the afterbody shielding construction connecting connecting lever, and afterbody shielding construction is the rotary body coaxial with leading body.
5. isolating switch conductor according to claim 4, it is characterized in that, afterbody shielding construction is hollow ball-shape, and the head of afterbody shielding construction offers the connection opening, the tail end that are communicated with the tail end mouth of moved end leading body and is provided with the drive openings of passing for the drive disk assembly being connected connecting lever.
6. isolating switch, comprise moving contact, moved end conductor, fixed contact, quiet end conductor, dynamic, fixed contact is coaxially positioned opposite, quiet end conductor comprises the quiet end leading body conducting electricity and be connected on fixed contact, moved end conductor comprises the moved end leading body conducting electricity and be connected on moving contact, definition is dynamic, the afterbody that the two ends of quiet end leading body are respectively head for arranging towards fracture and arrange for fracture dorsad, it is characterized in that, the head of moved end leading body and/or quiet end leading body is wholely set the hood-like head shielding structure of annular on the periphery for being set in corresponding contact, head shielding structure is coaxial with residing leading body, rotary generatrix is the rotary body of the curve bent along arc track from the head of residing leading body.
7. isolating switch according to claim 6, it is characterized in that, the head of moved end leading body has been wholely set head shielding structure, moved end leading body is shell-like, described head shielding structure be the head of automatic end leading body start first outwards, after the flange that rearwardly turns down, the tip position of head shielding structure and the outer peripheral face interval of moved end leading body are arranged.
8. isolating switch according to claim 7, is characterized in that, the afterbody of moved end leading body is wholely set for holding the afterbody shielding construction connecting connecting lever, and afterbody shielding construction is the rotary body coaxial with leading body.
9. isolating switch according to claim 8, is characterized in that, moved end conductor is square conductor, and the bottom of afterbody shielding construction is fixed with moved end insulating basin, the axis of moved end insulating basin and the axes normal of moved end leading body.
10. according to the isolating switch in claim 6 to 9 described in any one, it is characterized in that, moving contact comprises the moving arcing contact that coaxial guiding movement is assemblied in the head opening that dynamic main contact in the leading body of moved end and head thereof are fixed, the quiet main contact that fixed contact comprises head opening and inserts for dynamic main contact and interior assembling thereof for inserting the static arc contact in moving arcing contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831989.5A CN105448578B (en) | 2015-11-25 | 2015-11-25 | A kind of disconnecting switch and its conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831989.5A CN105448578B (en) | 2015-11-25 | 2015-11-25 | A kind of disconnecting switch and its conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448578A true CN105448578A (en) | 2016-03-30 |
| CN105448578B CN105448578B (en) | 2018-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510831989.5A Active CN105448578B (en) | 2015-11-25 | 2015-11-25 | A kind of disconnecting switch and its conductor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105448578B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
| CN106571251A (en) * | 2016-11-08 | 2017-04-19 | 河南平高电气股份有限公司 | Insulated operating rod and disconnecting switch with insulating operating rod |
| CN106710901A (en) * | 2017-02-08 | 2017-05-24 | 河南平高电气股份有限公司 | Contact base, contact base assembly and isolation ground-connection combination switch |
| CN108269711A (en) * | 2017-12-11 | 2018-07-10 | 河南平高电气股份有限公司 | A kind of static contact and static contact component, GIS disconnecting switch |
| CN109671596A (en) * | 2017-10-17 | 2019-04-23 | 浙江正泰电器股份有限公司 | Breaker of plastic casing |
| CN110112656A (en) * | 2019-04-25 | 2019-08-09 | 平高集团有限公司 | GIS device |
| CN111105951A (en) * | 2018-10-29 | 2020-05-05 | 平高集团有限公司 | High-voltage switch and resistance static contact thereof |
| CN111342310A (en) * | 2020-02-19 | 2020-06-26 | 平高集团有限公司 | Electric connection structure and connector thereof |
| CN112701004A (en) * | 2020-12-07 | 2021-04-23 | 河南平高电气股份有限公司 | Isolation grounding switch arc contact base and isolation grounding switch |
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| CN1066534A (en) * | 1991-05-08 | 1992-11-25 | 株式会社日立制作所 | Switch that gas-insulated opens circuit and switching device |
| JP2012015009A (en) * | 2010-07-02 | 2012-01-19 | Hitachi Ltd | High voltage switchgear |
| CN104766752A (en) * | 2014-11-17 | 2015-07-08 | 平高集团有限公司 | Compact isolating switch |
-
2015
- 2015-11-25 CN CN201510831989.5A patent/CN105448578B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066534A (en) * | 1991-05-08 | 1992-11-25 | 株式会社日立制作所 | Switch that gas-insulated opens circuit and switching device |
| JP2012015009A (en) * | 2010-07-02 | 2012-01-19 | Hitachi Ltd | High voltage switchgear |
| CN104766752A (en) * | 2014-11-17 | 2015-07-08 | 平高集团有限公司 | Compact isolating switch |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
| CN106571251A (en) * | 2016-11-08 | 2017-04-19 | 河南平高电气股份有限公司 | Insulated operating rod and disconnecting switch with insulating operating rod |
| CN106710901A (en) * | 2017-02-08 | 2017-05-24 | 河南平高电气股份有限公司 | Contact base, contact base assembly and isolation ground-connection combination switch |
| CN106710901B (en) * | 2017-02-08 | 2019-11-01 | 河南平高电气股份有限公司 | Touch base, touch base component and isolation ground connection stacked switch |
| CN109671596A (en) * | 2017-10-17 | 2019-04-23 | 浙江正泰电器股份有限公司 | Breaker of plastic casing |
| CN109671596B (en) * | 2017-10-17 | 2024-03-26 | 浙江正泰电器股份有限公司 | Plastic case circuit breaker |
| CN108269711A (en) * | 2017-12-11 | 2018-07-10 | 河南平高电气股份有限公司 | A kind of static contact and static contact component, GIS disconnecting switch |
| CN108269711B (en) * | 2017-12-11 | 2019-08-23 | 河南平高电气股份有限公司 | A kind of static contact and static contact component, GIS disconnecting switch |
| CN111105951A (en) * | 2018-10-29 | 2020-05-05 | 平高集团有限公司 | High-voltage switch and resistance static contact thereof |
| CN110112656A (en) * | 2019-04-25 | 2019-08-09 | 平高集团有限公司 | GIS device |
| CN111342310A (en) * | 2020-02-19 | 2020-06-26 | 平高集团有限公司 | Electric connection structure and connector thereof |
| CN112701004A (en) * | 2020-12-07 | 2021-04-23 | 河南平高电气股份有限公司 | Isolation grounding switch arc contact base and isolation grounding switch |
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|---|---|
| CN105448578B (en) | 2018-03-06 |
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