CN105185642A - Directly-operated three-station disconnecting switch and gas-insulated switchgear - Google Patents
Directly-operated three-station disconnecting switch and gas-insulated switchgear Download PDFInfo
- Publication number
- CN105185642A CN105185642A CN201510588285.XA CN201510588285A CN105185642A CN 105185642 A CN105185642 A CN 105185642A CN 201510588285 A CN201510588285 A CN 201510588285A CN 105185642 A CN105185642 A CN 105185642A
- Authority
- CN
- China
- Prior art keywords
- contact seat
- static contact
- seat
- insulating sleeve
- static
- 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
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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
- H01H31/02—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
- H01H31/023—Base and stationary contacts mounted thereon
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
Abstract
The invention relates to a directly-operated three-station disconnecting switch and a gas-insulated switchgear. The directly-operated three-station disconnecting switch comprises a working contact seat, a static contact seat, a ground contact seat and a moving contact. An insulating sleeve is arranged between the static contact seat and the ground contact seat to realize integrated connection, so that coaxiality between the ground contact seat and the static contact seat is high. The moving contact can rotate smoothly between the ground contact seat and the static contact seat, thereby guaranteeing normal usage of the switch. The static contact seat and a conductor are connected by hoop type conductive clamps; and the contact resistance of the contact part is low and the flow capacity is high. High-voltage insulating shielding covers are arranged on the working contact seat and the static contact seat, so that the electric field distribution between fractures is optimized and the insulation performance between fractures is improved. The distance between the fractures is shortened and thus the whole size of the switchgear is reduced, so that the materials are saved. A technical problem that the moving contact can not be opened or closed normally under the extreme conditions due to poor coaxiality between the moving contact and the ground contact seat and the static contact seat during turning on and off of the three-station switch in the prior art can be solved.
Description
Technical field
The present invention relates to a kind of direct-acting three-working-position isolation and gas insulation switch cabinet, belong to gas-insulated switchgear isolating switch technical field.
Background technology
Gas insulation switch cabinet compact conformation, reliable, be widely used in mesohigh transmission and distribution networks, carry out the distribution of electric energy and the protection of circuit.Three-station is the main components of gas insulation switch cabinet, is installed in the primary circuit of switch cubicle, bears the fracture voltage of high tension loop under gate-dividing state; Ensure loop reliable ground under ground state, guarantee staff and device security; The function of long-time bearing switch cubicle running current and short time rating dynamic and thermal stability electric current under "on" position.Direct action type three-station structure is simple, and reliable in action, obtains and use widely in gas insulation switch cabinet.
Existing direct-acting three-working-position isolation, generally comprises work touch base, ground contact seat, moving contact, static contact seat, connection row, drives screw mandrel and fingertip etc.Moving contact is placed in static contact seat through hole, and work touch base and ground contact seat are located at the two ends of static contact seat, and static contact seat, work touch base, ground contact seat are built with fingertip; Drive screw mandrel through ground contact seat centre bore engage with the feed screw nut of moving contact end, by the rotation of screw mandrel, the side-to-side movement in static contact seat of driving moving contact, completes the operation of combined floodgate, separating brake and ground connection.
Existing gas insulation switch cabinet direct action type three-station, the distance usually by increasing isolation fracture improves insulation level, and the method can cause electric field nonuniformity coefficient between fracture to improve, and affects the insulation property of switch cubicle entirety; While increasing isolation fracture distance, switch cubicle overall dimensions will certainly be made to become large, consumptive material feed consumption, extremely uneconomical; Contact resistance is large, and through-current capability is poor, junction temperature rise; The three-station of three-station drives moving contact to carry out transmission to realize three stations of switch between work touch base, static contact seat, ground contact seat by screw mandrel, because ground contact seat and static contact seat are installed separately, can cause ground contact seat and static contact seat axiality poor, and then cause moving contact in extreme circumstances not divide by normal occlusion, switch can not normally be used.
Summary of the invention
The object of the present invention is to provide a kind of direct-acting three-working-position isolation, with to solve in prior art three-station close timesharing moving contact and the axiality between ground contact seat and static contact seat poor, cause moving contact can not the normal occlusion technical problem of dividing in extreme circumstances; The present invention also aims to provide a kind of gas insulation switch cabinet.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of direct-acting three-working-position isolation, comprise static contact seat, ground contact seat that left and right is arranged, also comprise and being driven by screw mandrel and the moving contact that can reciprocate between static contact seat, ground contact seat, the insulating sleeve that axis extends in left-right direction is provided with between described static contact seat and ground contact seat, the right-hand member of insulating sleeve is fixedly connected with ground contact seat coaxial line, and the left end of insulating sleeve is fixedly connected with static contact seat coaxial line and makes static contact seat, insulating sleeve and ground contact seat form an overall structure.
Described insulating sleeve is isometrical straight-tube shape structure, and the link external diameter of described static contact seat is less than ground contact seat link external diameter, and insulating sleeve and static contact seat are linked together by swivel nut, and described swivel nut endoporus is threaded with static contact seat and insulating sleeve respectively with outer wall.
Described moving contact comprise Motion and repose touch base guiding coordinate conductive body and spinning conductive body right-hand member feed screw nut, described feed screw nut is provided with the motion thread forming screw-driven with screw mandrel.
Described moving contact is provided with for leading the feather key coordinated with the gathering sill running through whole static contact seat that static contact seat inner headed face is provided with, described feather key screw is arranged in the keyway that moving contact periphery is provided with, and two ends, described keyway left and right have respectively to the stopping surface of feather key movement in the lateral direction.
The opening part of described work touch base and static contact seat relative position is separately installed with high-tension shielding cover.
Conductor for being connected with static contact seat adopts hood type to conduct electricity chuck to be connected with static contact seat.
A kind of gas insulation switch cabinet, comprise direct-acting three-working-position isolation, described direct-acting three-working-position isolation comprises static contact seat, the ground contact seat that left and right is arranged, also comprise and being driven by screw mandrel and the moving contact that can reciprocate between static contact seat, ground contact seat, the insulating sleeve that axis extends in left-right direction is provided with between described static contact seat and ground contact seat, the right-hand member of insulating sleeve is fixedly connected with ground contact seat coaxial line, and the left end of insulating sleeve is fixedly connected with static contact seat coaxial line and makes static contact seat, insulating sleeve and ground contact seat form an overall structure.
Described moving contact comprise Motion and repose touch base guiding coordinate conductive body and spinning conductive body right-hand member feed screw nut, described feed screw nut is provided with the motion thread forming screw-driven with screw mandrel.
The opening part of described work touch base and static contact seat relative position is respectively equipped with high-tension shielding cover.
Conductor for being connected with static contact seat adopts hood type to conduct electricity chuck to be connected with static contact seat.
The invention has the beneficial effects as follows: because static contact seat and ground contact seat are be installed separately in gas insulation switch cabinet, moving contact and the axiality between them is caused to there will be certain deviation, the straight-tube shape insulating sleeve that the present invention extends in left-right direction by being provided with axis between static contact seat and ground contact seat, the axiality of static contact seat and ground contact seat can be ensured, make moving contact can arrive smoothly transmission between which, ensure the normal use of switch.
Further: the present invention, by setting up High-Voltage Insulation cover on work touch base and static contact seat, does not need the distance increasing fracture, optimizes the Electric Field Distribution between fracture, improve the insulation property between fracture.Substantially reduce the distance of fracture, the overall dimensions of switch cubicle is diminished, economize material material-saving.
Static contact seat cylindrical is by adopting hood type conduction chuck connected mode, and substantially increase the reliability of structural conductive contact, junction contact resistance is little, and negotiability is strong.
Accompanying drawing explanation
Fig. 1: be the front view of the embodiment of gas insulation switch cabinet;
Fig. 2: be the structural representation of moving contact;
Fig. 3: the structural representation that hood type conduction chuck is connected with static contact seat.
In figure: 1-bar; 2-nut; 3-ground contact seat; 4-insulating sleeve; 5-screw mandrel; 6-swivel nut; 7-conductor; 8-hood type conduction chuck; 9-moving contact; 10-the first high-tension shielding cover; 11-the second high-tension shielding cover; 12-work touch base; 13-gas tank plate; 14-mounting panel; 15-insulator; 16-bus bar; 17-static contact seat; 18-hood type conduction chuck; 20-holding screw; 21-feed screw nut; 22-fingertip; 23-feather key; 24-screw; 25-conductive body; 26-screw; 27-gathering sill.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, the present invention is described in detail:
The preferred embodiment of gas insulation switch cabinet of the present invention, as Figure 1-3: comprise gas tank plate 13, insulator 15, bus bar 16 and direct-acting three-working-position isolation, static contact seat 17, work touch base 12, ground contact seat 3 and moving contact 17 is comprised in the gas tank that direct-acting three-working-position isolation is installed on sealing.Ground contact seat 3 is also fixed by nut 2 and gas tank plate 13 through the circular hole of gas tank plate 13, and the sealing ring on ground contact seat 3 realizes the air seal of gas tank; Be provided with a bar 1 in ground contact seat 3, one end of screw mandrel 5 to be inserted in ground contact seat 3 and is socketed with bar 1, makes bar 1 that screw mandrel 5 can be driven to rotate.
Ground contact seat 3, static contact seat 17, work touch base 12 are coaxially arranged in gas insulation switch cabinet, the axis dead in line therewith of screw mandrel 5; Static contact seat 17 and ground contact seat 3 are connected by insulating cylinder 4 and become one, can guarantee ground contact seat 3 and the axiality of static contact seat 17, improve the stability of direct action type three-station action.Wherein the link external diameter of static contact seat 17 is less than ground contact seat 3 link external diameter, and insulating sleeve 4 and static contact seat are linked together by swivel nut 6, and swivel nut 6 endoporus and outer wall are threaded with static contact seat 17 and insulating sleeve 4 respectively.Swivel nut 6 left end is provided with the defining flange to insulating sleeve 4.
The inner headed face of static contact seat 17 has the gathering sill 27 that runs through whole static contact seat 17, the feather key 23 on moving contact 9 coordinates with this gathering sill 27 slide-and-guide, and moving contact 9 steadily can be moved in static contact seat 17.
As shown in Figure 2: moving contact 9 comprises the conductive body 25 and spinning that to lead with static contact seat 17 and coordinate conductive body 25 right-hand member feed screw nut 21, feed screw nut 21 is provided with the motion thread forming screw-driven with screw mandrel 5, and feed screw nut 21 and conductive body 25 threaded engagement place are provided with the holding screw 20 preventing feed screw nut's circumference from rotating and screw out to prevent feed screw nut 21; The sidewall of conductive body 25 is provided with feather key 23, and feather key 23 is strip.Feather key 23 screw 24 is arranged in the keyway that moving contact periphery is provided with, and two ends, keyway left and right have respectively to the stopping surface of feather key 23 movement in the lateral direction.
Work touch base 12 is arranged on also insulation against ground on gas tank plate 13 with bus bar 16 by supporting insulator 15, supporting bracket 14; As shown in Figure 3: static contact seat 17 is by hood type conductive clip 8,18 make-up and hold tightly by screw 26 is fastening, be installed on conductor 7 by hood type conductive clip 8, this conduction hooping structure enclasping pressure is large, can effectively reduce contact resistance, improves through-current capability; Bus bar 16 is connected the busbar up and down of gas insulation switch cabinet inside with conductor 7, realize the connection of galvanic circle in direct action type three-station and gas tank.
The cylindrical two ends of moving contact 9 offer groove, install fingertip 22 in groove, and by means of only the fingertip 22 on moving contact 9, fingertip consumption is few, just can realize combined floodgate conducting and the reliable ground of direct action type three-station.
The left end of static contact seat 17 is provided with the first high-tension shielding cover 10, the right-hand member end of work touch base 12 is provided with the second high-tension shielding cover 11, by the high-tension shielding cover 10 at these isolation fracture two ends, effectively can reduce the electric field strength of fracture, reduce fracture distance, reduce electric field nonuniformity coefficient.
The operating principle of direct-operated isolating switch is: rotated in the feed screw nut 21 of moving contact 9 end by external agency's driven rod 1 and connected screw mandrel 5, drives moving contact 9 in static contact seat 17 or move right left.When moving contact 9 inserts in work touch base 12, be "on" position; When moving contact 9 is positioned at static contact seat 17, be gate-dividing state; When moving contact 9 inserts ground contact seat 3, be ground state; To close a floodgate and ground state all tactile sub 22 realizes conducting by what be installed on moving contact 9 two ends, realize the function of direct action type three-station.
The embodiment of direct-acting three-working-position isolation is identical with the direct-acting three-working-position isolation in above-mentioned gas insulated switch cabinet, and in this not go into detail.
Claims (10)
1. a direct-acting three-working-position isolation, comprise static contact seat, ground contact seat that left and right is arranged, also comprise and being driven by screw mandrel and the moving contact that can reciprocate between static contact seat, ground contact seat, it is characterized in that: between described static contact seat and ground contact seat, be provided with the insulating sleeve that axis extends in left-right direction, the right-hand member of insulating sleeve is fixedly connected with ground contact seat coaxial line, and the left end of insulating sleeve is fixedly connected with static contact seat coaxial line and makes static contact seat, insulating sleeve and ground contact seat form an overall structure.
2. direct-acting three-working-position isolation according to claim 1, it is characterized in that: described insulating sleeve is isometrical straight-tube shape structure, the link external diameter of described static contact seat is less than ground contact seat link external diameter, insulating sleeve and static contact seat are linked together by swivel nut, and described swivel nut endoporus is threaded with static contact seat and insulating sleeve respectively with outer wall.
3. direct-acting three-working-position isolation according to claim 1, it is characterized in that: described moving contact comprise Motion and repose touch base guiding coordinate conductive body and spinning conductive body right-hand member feed screw nut, described feed screw nut is provided with the motion thread forming screw-driven with screw mandrel.
4. direct-acting three-working-position isolation according to claim 1, it is characterized in that: described moving contact is provided with for leading the feather key coordinated with the gathering sill running through whole static contact seat that static contact seat inner headed face is provided with, described feather key screw is arranged in the keyway that moving contact periphery is provided with, and two ends, described keyway left and right have respectively to the stopping surface of feather key movement in the lateral direction.
5. direct-acting three-working-position isolation according to claim 1, is characterized in that: the opening part of described work touch base and static contact seat relative position is separately installed with high-tension shielding cover.
6. direct-acting three-working-position isolation according to claim 1, is characterized in that: the conductor for being connected with static contact seat adopts hood type to conduct electricity chuck to be connected with static contact seat.
7. a gas insulation switch cabinet, comprise direct-acting three-working-position isolation, described direct-acting three-working-position isolation comprises the static contact seat that left and right is arranged, ground contact seat, also comprise and to be driven by screw mandrel and can at static contact seat, the moving contact reciprocated between ground contact seat, it is characterized in that: between described static contact seat and ground contact seat, be provided with the insulating sleeve that axis extends in left-right direction, the right-hand member of insulating sleeve is fixedly connected with ground contact seat coaxial line, the left end of insulating sleeve is fixedly connected with static contact seat coaxial line and makes static contact seat, insulating sleeve and ground contact seat form an overall structure.
8. gas insulation switch cabinet according to claim 7, it is characterized in that: described moving contact comprise Motion and repose touch base guiding coordinate conductive body and spinning conductive body right-hand member feed screw nut, described feed screw nut is provided with the motion thread forming screw-driven with screw mandrel.
9. gas insulation switch cabinet according to claim 7, is characterized in that: the opening part of described work touch base and static contact seat relative position is respectively equipped with high-tension shielding cover.
10. gas insulation switch cabinet according to claim 7, is characterized in that: the conductor for being connected with static contact seat adopts hood type to conduct electricity chuck to be connected with static contact seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588285.XA CN105185642B (en) | 2015-09-16 | 2015-09-16 | A kind of direct-acting three-working-position isolation and gas insulation switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588285.XA CN105185642B (en) | 2015-09-16 | 2015-09-16 | A kind of direct-acting three-working-position isolation and gas insulation switch cabinet |
Publications (2)
| Publication Number | Publication Date |
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| CN105185642A true CN105185642A (en) | 2015-12-23 |
| CN105185642B CN105185642B (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510588285.XA Active CN105185642B (en) | 2015-09-16 | 2015-09-16 | A kind of direct-acting three-working-position isolation and gas insulation switch cabinet |
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| CN (1) | CN105185642B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731608A (en) * | 2017-11-08 | 2018-02-23 | 北京北开电气股份有限公司 | A kind of high-voltage isulation multi-turn drive mechanism |
| CN108288560A (en) * | 2017-12-27 | 2018-07-17 | 甘肃长城电工电器工程研究院有限公司 | The insulated leg of direct-acting three-working-position isolation major loop |
| CN108631201A (en) * | 2018-06-06 | 2018-10-09 | 中国三冶集团有限公司 | A kind of GIS flanges dock comprehensive gatherer and method |
| CN109494605A (en) * | 2018-12-19 | 2019-03-19 | 上海平高天灵开关有限公司 | A kind of device having double main bus-bar isolation features |
| CN109859980A (en) * | 2018-12-10 | 2019-06-07 | 河南平高通用电气有限公司 | Gas-filling cabinet and its direct action type three-station |
| CN110473735A (en) * | 2017-07-24 | 2019-11-19 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN112530730A (en) * | 2020-11-30 | 2021-03-19 | 海南电网有限责任公司东方供电局 | Distribution network overhead line isolating switch |
| CN113035627A (en) * | 2021-03-29 | 2021-06-25 | 山东泰开电力开关有限公司 | Single box-separating type linear three-position switch structure and using method thereof |
| CN113539615A (en) * | 2021-07-19 | 2021-10-22 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
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| US4816624A (en) * | 1987-01-19 | 1989-03-28 | Merlin Gerin | Multiphase gas expansion circuit breaker for gas-insulated metalclad cell |
| CN102176612A (en) * | 2011-01-25 | 2011-09-07 | 郑文秀 | Console type alternative current intelligent switch cubicle |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4816624A (en) * | 1987-01-19 | 1989-03-28 | Merlin Gerin | Multiphase gas expansion circuit breaker for gas-insulated metalclad cell |
| CN102176612A (en) * | 2011-01-25 | 2011-09-07 | 郑文秀 | Console type alternative current intelligent switch cubicle |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473735A (en) * | 2017-07-24 | 2019-11-19 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN107731608A (en) * | 2017-11-08 | 2018-02-23 | 北京北开电气股份有限公司 | A kind of high-voltage isulation multi-turn drive mechanism |
| CN107731608B (en) * | 2017-11-08 | 2024-04-12 | 北京北开电气股份有限公司 | High-voltage insulation multi-circle transmission structure |
| CN108288560A (en) * | 2017-12-27 | 2018-07-17 | 甘肃长城电工电器工程研究院有限公司 | The insulated leg of direct-acting three-working-position isolation major loop |
| CN108631201B (en) * | 2018-06-06 | 2023-06-16 | 中国三冶集团有限公司 | GIS flange butt joint omnibearing leading-in device and method |
| CN108631201A (en) * | 2018-06-06 | 2018-10-09 | 中国三冶集团有限公司 | A kind of GIS flanges dock comprehensive gatherer and method |
| CN109859980A (en) * | 2018-12-10 | 2019-06-07 | 河南平高通用电气有限公司 | Gas-filling cabinet and its direct action type three-station |
| CN109859980B (en) * | 2018-12-10 | 2020-10-23 | 河南平高通用电气有限公司 | Aerify cabinet and three station switches of direct action formula thereof |
| CN109494605A (en) * | 2018-12-19 | 2019-03-19 | 上海平高天灵开关有限公司 | A kind of device having double main bus-bar isolation features |
| CN112530730B (en) * | 2020-11-30 | 2023-04-28 | 海南电网有限责任公司东方供电局 | Wire-distribution overhead line isolating switch |
| CN112530730A (en) * | 2020-11-30 | 2021-03-19 | 海南电网有限责任公司东方供电局 | Distribution network overhead line isolating switch |
| CN113035627A (en) * | 2021-03-29 | 2021-06-25 | 山东泰开电力开关有限公司 | Single box-separating type linear three-position switch structure and using method thereof |
| CN113035627B (en) * | 2021-03-29 | 2023-12-29 | 山东泰开电力开关有限公司 | Single-body split-box type linear three-position switch structure and use method thereof |
| CN113539615A (en) * | 2021-07-19 | 2021-10-22 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
| CN113539615B (en) * | 2021-07-19 | 2022-02-11 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105185642B (en) | 2018-02-06 |
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