CN105185642B - A kind of direct-acting three-working-position isolation and gas insulation switch cabinet - Google Patents
A kind of direct-acting three-working-position isolation and gas insulation switch cabinet Download PDFInfo
- Publication number
- CN105185642B CN105185642B CN201510588285.XA CN201510588285A CN105185642B CN 105185642 B CN105185642 B CN 105185642B CN 201510588285 A CN201510588285 A CN 201510588285A CN 105185642 B CN105185642 B CN 105185642B
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- Prior art keywords
- contact seat
- static contact
- seat
- direct
- acting
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- 238000002955 isolation Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 80
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 210000003746 feather Anatomy 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 230000003292 diminished effect Effects 0.000 abstract 1
- 230000005283 ground state Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method 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
- H01H31/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Push-Button Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
A kind of direct-acting three-working-position isolation and gas insulation switch cabinet, direct-acting three-working-position isolation include work touch base, static contact seat, ground contact seat and moving contact.The present invention increases insulating sleeve between static contact seat and ground contact seat connects as one it, makes the axiality between ground contact seat and static contact seat good, and moving contact can arrive smoothly to be driven between them, ensures the normal use of switch；Static contact seat is linked together with conductor using hood type conduction chuck connected mode, and junction contact resistance is small, and negotiability is strong.High-voltage isulation radome is set up on work touch base and static contact seat, the Electric Field Distribution between fracture is optimized, improves the insulating properties between fracture.The distance of fracture is shortened, the overall dimensions of switch cubicle is diminished, material saving material-saving.It is poor to solve the axiality that three-station is closed between timesharing moving contact and ground contact seat and static contact seat in the prior art, causes moving contact to be unable to the technical problem of normal occlusion point in extreme circumstances.
Description
Technical field
The present invention relates to a kind of direct-acting three-working-position isolation and gas insulation switch cabinet, belongs to gas-insulated switch and sets
Standby disconnecting switch technical field.
Background technology
Gas insulation switch cabinet is compact-sized, reliable, is widely used in mesohigh transmission and distribution networkses, carries out electric energy
Distribution and the protection of circuit.Three-station is the main components of gas insulation switch cabinet, is installed on once returning for switch cubicle
Lu Zhong, the fracture voltage of high tension loop is born under gate-dividing state；Ensure loop reliable ground under ground state, it is ensured that staff
And equipment safety；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 is simple in construction, reliable in action, is widely used in a variety of applications in gas insulation switch cabinet.
Existing direct-acting three-working-position isolation, generally comprise work touch base, ground contact seat, moving contact, static contact seat, connection
Row, drive screw and fingertip etc..Moving contact is placed in stationary contact block hole, and work touch base is located at the two of static contact seat with ground contact seat
End, static contact seat, work touch base, ground contact seat are built with fingertip；Drive screw through ground contact seat centre bore and with moving contact end
Feed screw nut's engagement in portion, by the rotation of screw mandrel, drives moving contact side-to-side movement in static contact seat, complete to close a floodgate, separating brake and
The operation of ground connection.
Existing gas insulation switch cabinet direct action type three-station, is generally carried by increasing the distance of isolation fracture
High dielectric level, electric field nonuniformity coefficient improves between this method can cause fracture, influences the overall insulating properties of switch cubicle；Increase
Isolation fracture apart from while, switch cubicle overall dimensions will certainly be caused to become big, consumptive material feed consumption is extremely uneconomical；Contact resistance is big,
Through-current capability is poor, junction temperature rise；The three-station of three-station is in work touch base, quiet by screw mandrel driving moving contact
It is driven between touch base, ground contact seat to realize the three of switch stations, because ground contact seat and static contact seat are to be installed separately,
Ground contact seat and static contact seat axiality can be caused poor, so cause in extreme circumstances moving contact be unable to normal occlusion point, make switch
It is unable to normal use.
The content of the invention
It is an object of the invention to provide a kind of direct-acting three-working-position isolation, is opened with solving three stations in the prior art
The axiality closed between timesharing moving contact and ground contact seat and static contact seat is poor, causes moving contact normal in extreme circumstances
Close the technical problem divided；The present invention also aims to provide a kind of gas insulation switch cabinet.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of direct-acting three-working-position isolation, including static contact seat, the ground contact seat that left and right is set, in addition to driven by screw mandrel
The moving contact that moves and can be reciprocated between static contact seat, ground contact seat, is provided with axis between the static contact seat and ground contact seat
The insulating sleeve extended in left-right direction, the right-hand member of insulating sleeve are fixedly connected with ground contact seat coaxial line, a left side for insulating sleeve
End is fixedly connected with static contact seat coaxial line and static contact seat, insulating sleeve and ground contact seat is formed an overall structure.
The insulating sleeve is isometrical straight structure, and the connection end external diameter of the static contact seat is less than ground contact seat connection end
External diameter, insulating sleeve are linked together with static contact seat by swivel nut, the swivel nut endoporus and outer wall respectively with static contact seat and insulation
Bush whorl connects.
The moving contact includes the dynamic conductive body coordinated with static contact seat guiding and spinning in conductive body right-hand member screw mandrel spiral shell
Mother, the feed screw nut are provided with the motion thread that screw-driven is formed with screw mandrel.
The moving contact, which is provided with, to be used to be oriented to the guide groove through whole static contact seat that static contact seat inner headed face is provided with
The feather key of cooperation, the feather key are arranged in the keyway that is provided with of moving contact periphery with screw, described keyway or so two
End is with the stopping surface moved in the lateral direction to feather key respectively.
The opening of the 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 is connected using hood type conduction chuck with static contact seat.
A kind of gas insulation switch cabinet, including direct-acting three-working-position isolation, the direct-acting three-working-position isolation
Static contact seat, the ground contact seat set including left and right, in addition to driven by screw mandrel and shifting can be come and gone between static contact seat, ground contact seat
Dynamic moving contact, the insulating sleeve that axis extends in left-right direction, insulating sleeve are provided between the static contact seat and ground contact seat
Right-hand member be 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 stationary contact
Seat, insulating sleeve and ground contact seat form an overall structure.
The moving contact includes the dynamic conductive body coordinated with static contact seat guiding and spinning in conductive body right-hand member screw mandrel spiral shell
Mother, the feed screw nut are provided with the motion thread that screw-driven is formed with screw mandrel.
The opening of the 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 is connected using hood type conduction chuck with static contact seat.
The beneficial effects of the invention are as follows：Because static contact seat and ground contact seat are to be installed separately in gas insulation switch cabinet,
Cause moving contact and the axiality between them that certain deviation occurs, the present invention between static contact seat and ground contact seat by installing
There is the straight-tube shape insulating sleeve that axis extends in left-right direction, can guarantee that the axiality of both static contact seat and ground contact seat, make
Contact can arrive smoothly to be driven between them, ensures the normal use of switch.
Further：The present invention on work touch base and static contact seat by setting up high-voltage isulation cover, it is not necessary to which increase is disconnected
The distance of mouth, optimizes the Electric Field Distribution between fracture, improves the insulating properties between fracture.The distance of fracture is substantially reduced,
The overall dimensions of switch cubicle are made to diminish, material saving material-saving.
Static contact seat is cylindrical by using hood type conduction chuck connected mode, substantially increases the reliable of structural conductive contact
Property, junction contact resistance is small, and negotiability is strong.
Brief description of the drawings
Fig. 1：For the front view of the embodiment of gas insulation switch cabinet；
Fig. 2：For 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-installing plate；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-guide groove.
Embodiment
Below in conjunction with preferred embodiment and its accompanying drawing, the present invention is described in detail：
The preferred embodiment of the gas insulation switch cabinet of the present invention, as Figure 1-3：Including gas tank plate 13, insulator 15,
Bus bar 16 and direct-acting three-working-position isolation, direct-acting three-working-position isolation, which is installed in the gas tank of sealing, includes stationary contact
Seat 17, work touch base 12, ground contact seat 3 and moving contact 17.Ground contact seat 3 through gas tank plate 13 circular hole and by nut 2 with
Gas tank plate 13 is fixed, and the sealing ring on ground contact seat 3 realizes the air seal of gas tank；One bar 1, silk are installed in ground contact seat 3
It is socketed in one end insertion ground contact seat 3 of bar 5 and with bar 1, allows bar 1 to drive screw mandrel 5 to rotate.
Ground contact seat 3, static contact seat 17, work touch base 12 be coaxially mounted in gas insulation switch cabinet, the axis of screw mandrel 5 with
This axis overlaps；Static contact seat 17 and ground contact seat 3 become one by the connection of insulating cylinder 4, can ensure that ground contact seat 3 with it is quiet
The axiality of touch base 17, improve the stability of direct action type three-station action.The connection end external diameter of wherein static contact seat 17 is less than
The connection end external diameter of ground contact seat 3, insulating sleeve 4 are linked together with static contact seat by swivel nut 6, and the endoporus of swivel nut 6 is distinguished with outer wall
It is threadedly coupled with static contact seat 17 and insulating sleeve 4.The left end of swivel nut 6 is provided with the defining flange to insulating sleeve 4.
A guide groove 27 for running through whole static contact seat 17, the guiding on moving contact 9 are provided with the inner headed face of static contact seat 17
Key 23 coordinates with the slide-and-guide of guide groove 27, moving contact 9 is steadily moved in static contact seat 17.
As shown in Figure 2：Moving contact 9 includes being oriented to the conductive body 25 coordinated and spinning in conductive body 25 with static contact seat 17
Right-hand member feed screw nut 21, feed screw nut 21 are provided with the motion thread that screw-driven is formed with screw mandrel 5, feed screw nut 21 and conduction
Being provided with the screw thread cooperation of body 25 prevents the holding screw 20 that feed screw nut circumferentially rotates to prevent feed screw nut 21 from screwing out；Leading
Feather key 23 is installed, feather key 23 is strip in the side wall of electric body 25.Feather key 23 is arranged on moving contact with screw 24
In the keyway that periphery is provided with, keyway left and right ends have the stopping surface moved in the lateral direction to feather key 23 respectively.
The touch base 12 that works is arranged on gas tank plate 13 and exhausted over the ground with bus bar 16 by supporting insulator 15, supporting plate 14
Edge；As shown in Figure 3：Static contact seat 17 fastens holding by hood type conductive clip 8,18 make-ups and by screw 26, is led by hood type
Electricity folder 8 is installed on conductor 7, and the conductive hooping structure enclasping pressure is big, can effectively reduce contact resistance, improve through-flow energy
Power；Bus bar 16 is connected the busbar up and down inside gas insulation switch cabinet with conductor 7, realize direct action type three-station with
The connection of galvanic circle in gas tank.
The cylindrical both ends of moving contact 9 offer groove, and fingertip 22 is installed in groove, only passes through the fingertip on moving contact 9
22, fingertip dosage is few, 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, and the right-hand member end of work touch base 12 is provided with the second high pressure screen
Cover cover 11, by the high-tension shielding cover 10 at this isolation fracture both ends, can effectively reduce the electric-field intensity of fracture, reduce fracture away from
From reduction electric field nonuniformity coefficient.
The operating principle of direct-operated isolating switch is：Touched by external agency's driven rod 1 and connected screw mandrel 5 dynamic
Rotated in the feed screw nut 21 of first 9 end, driving moving contact 9 to the left or moves right in static contact seat 17.When moving contact 9 inserts
Work in touch base 12, as "on" position；When moving contact 9 is located in static contact seat 17, as gate-dividing state；When moving contact 9 is inserted
Enter ground contact seat 3, as ground state；Close a floodgate and tactile sub 22 realization of the ground state by being installed on the both ends of moving contact 9 is led
It is logical, realize the function of direct action type three-station.
The embodiment of direct-acting three-working-position isolation is isolated with the station of Direct Action Type three in above-mentioned gas insulated switch cabinet
Switch identical, in this not go into detail.
Claims (10)
1. a kind of direct-acting three-working-position isolation, including static contact seat, the ground contact seat that left and right is set, in addition to driven by screw mandrel
And the moving contact that can be reciprocated between static contact seat, ground contact seat, it is characterised in that：Between the static contact seat and ground contact seat
The insulating sleeve extended in left-right direction provided with axis, the right-hand member of insulating sleeve are fixedly connected with ground contact seat coaxial line, insulation
The left end of sleeve is fixedly connected with static contact seat coaxial line and static contact seat, insulating sleeve and ground contact seat is formed an entirety knot
Structure, ensure the axiality of static contact seat and ground contact seat.
2. direct-acting three-working-position isolation according to claim 1, it is characterised in that：The insulating sleeve is to wait straight
Tubular structure, the connection end external diameter of the static contact seat are less than ground contact seat connection end external diameter, and insulating sleeve passes through spiral shell with static contact seat
Set is linked together, and the swivel nut endoporus is threadedly coupled with static contact seat and insulating sleeve respectively with outer wall.
3. direct-acting three-working-position isolation according to claim 1, it is characterised in that：The moving contact includes and stationary contact
Seat is oriented to the feed screw nut of the conductive body coordinated and spinning in conductive body right-hand member, and the feed screw nut is provided with and screw mandrel structure
Into the motion thread of screw-driven.
4. direct-acting three-working-position isolation according to claim 1, it is characterised in that：The moving contact, which is provided with, to be used for
The feather key coordinated, the feather key screw are oriented to the guide groove through whole static contact seat that static contact seat inner headed face is provided with
In the keyway being provided with installed in moving contact periphery, the keyway left and right ends have to be moved in the lateral direction to feather key respectively
The dynamic stopping surface for carrying out block.
5. direct-acting three-working-position isolation according to claim 1, it is characterised in that：Direct-acting three-working-position isolation
Also include and spaced work touch base coaxial with static contact seat, the opening of work touch base and static contact seat relative position is pacified respectively
Equipped with high-tension shielding cover.
6. direct-acting three-working-position isolation according to claim 1, it is characterised in that：Led for what is be connected with static contact seat
Body is connected using hood type conduction chuck with static contact seat.
7. a kind of gas insulation switch cabinet, including direct-acting three-working-position isolation, the direct-acting three-working-position isolation bag
Static contact seat, the ground contact seat that left and right is set are included, in addition to is driven and can be reciprocated between static contact seat, ground contact seat by screw mandrel
Moving contact, it is characterised in that：The insulating sleeve that axis extends in left-right direction is provided between the static contact seat and ground contact seat,
The right-hand member of insulating sleeve is fixedly connected with ground contact seat coaxial line, the left end of insulating sleeve be fixedly connected with static contact seat coaxial line and
Static contact seat, insulating sleeve and ground contact seat is formed an overall structure, ensure the axiality of static contact seat and ground contact seat.
8. gas insulation switch cabinet according to claim 7, it is characterised in that：The moving contact includes being oriented to static contact seat
The conductive body and spinning of cooperation conductive body right-hand member feed screw nut, the feed screw nut be provided with and screw mandrel form screw thread
The motion thread of transmission.
9. gas insulation switch cabinet according to claim 7, it is characterised in that：Direct-acting three-working-position isolation also includes
The opening of coaxial with static contact seat and spaced work touch base, work touch base and static contact seat relative position is respectively equipped with high pressure
Radome.
10. gas insulation switch cabinet according to claim 7, it is characterised in that：Conductor for being connected with static contact seat is adopted
It is connected with hood type conduction chuck 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 |
|---|---|
| CN105185642A CN105185642A (en) | 2015-12-23 |
| CN105185642B true CN105185642B (en) | 2018-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 (1)
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| 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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| CN107578944B (en) * | 2017-07-24 | 2019-05-14 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| 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 |
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| 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 |
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| 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 |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2609837B1 (en) * | 1987-01-19 | 1989-04-14 | Merlin Gerin | SELF-EXPANSION POLYPHASE CIRCUIT BREAKER WITH POLE-SHIELDED CUT-OFF CHAMBER |
| CN102176612A (en) * | 2011-01-25 | 2011-09-07 | 郑文秀 | Console type alternative current intelligent switch cubicle |
| CN102420399B (en) * | 2011-08-19 | 2014-09-03 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
-
2015
- 2015-09-16 CN CN201510588285.XA patent/CN105185642B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| CN105185642A (en) | 2015-12-23 |
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