CN103646820A - High-voltage directly-operated air-compressing type SF6 load switch device - Google Patents
High-voltage directly-operated air-compressing type SF6 load switch device Download PDFInfo
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- CN103646820A CN103646820A CN201310684232.9A CN201310684232A CN103646820A CN 103646820 A CN103646820 A CN 103646820A CN 201310684232 A CN201310684232 A CN 201310684232A CN 103646820 A CN103646820 A CN 103646820A
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Abstract
The invention relates to a high-voltage directly-operated air-compressing type SF6 load switch device. The device comprises a static contact, an arc ignition needle, a moving contact assembly, an arc extinguishing cover, a switch box, a contact clamp assembly, a connecting rod, a connecting lever, a shield ring and a busbar, wherein the static contact is fixedly installed at the upper end of the arc extinguishing cover, the static contact is internally provided with the arc ignition needle, the moving contact assembly is disposed at the arc extinguishing cover, the moving contact assembly is in contact with the inner wall of the arc extinguishing cover to form an enclosed cavity, and the arc extinguishing cover is fixedly connected with the switch box. By adopting such a structure, the sealing ring on the moving contact assembly and the inner wall of the arc extinguishing cover form the enclosed cavity, when a load switch is turned off, a mechanism drives the connecting lever to rotate, and the moving contact assembly is driven by the connecting rod to move downwards so that the SF6 gas in the enclosed cavity is compressed, the compressed SF6 gas is sprayed at an extremely high speed from a nozzle to quench the arc between the arc ignition needle and an arc contact.
Description
Technical field
The present invention relates to a kind of high voltage direct action pneumatic type SF
6load switching unit, relates in particular to a kind of high voltage direct action pneumatic type SF being assemblied in Cubicle Gas-Insulated Switchgear
6load switching unit.
Background technology
SF
6, Chinese name: sulphur hexafluoride, came across for 20 beginnings of the century, it is sulphur formed gas while burning in the gas of fluorine, SF
6gas, with its good insulation property and arc extinction performance and aphlogistic characteristic, is progressively used for electric equipment as New insulated medium.At present, Cubicle Gas-Insulated Switchgear, all adopts rotation disconnecting link formula SF
6load switching unit, the electromagnetic force that during on/off switch, electric current produces is elongated cooling arc extinguishing by electric arc, is limited to the intrinsic characteristic of magnetic blow-out formula arc quenching principle itself, this type of SF
6load switching unit arc extinguishing is limited in one's ability, can not meet preferably distribution demand, China Patent No.: 2006201597928, and disclosed straight action pneumatic type switch, complex structure, high pressure weak effect, arc extinction performance is not good.
Summary of the invention
The object of this invention is to provide the high voltage direct action pneumatic type SF that a kind of arc extinguishing ability is strong
6load switching unit, when switch separating brake, the SF in compression arc-extinguish chamber
6gas, makes SF
6gas is blown out electric arc with high speed by spout.
For realizing above object, the present invention by the following technical solutions: a kind of high voltage direct action pneumatic type SF
6load switching unit, comprises fixed contact, striking pin, moving contact component, arc-extinguish chamber, fixed contact is fixedly mounted on arc-extinguish chamber upper end, is provided with striking pin in fixed contact, and moving contact component is located at arc-extinguish chamber, and moving contact component contacts with arc-extinguish chamber inwall and forms enclosed cavity, it is characterized in that: also comprise switch enclosure, contact clip assembly, connecting rod, connecting lever, shading ring, busbar, described arc-extinguish chamber is fixedly connected with switch enclosure, and described moving contact component comprises moving contact, arcing contact, nozzle, lever and the collar, described arcing contact is located between moving contact and nozzle, arcing contact is fixed on moving contact, nozzle is fixedly connected with moving contact, lever one end is fixedly connected with moving contact, and the collar is stuck in moving contact outer ring, and sealing ring is enclosed within collar outer ring, lever lower end is positioned at switch enclosure, connecting rod two ends respectively with lever, connecting lever is rotationally connected, and described contact clip assembly is placed on lever external diameter, with lever external diameter Elastic Contact, busbar is fixedly connected with contact clip assembly, grounding contact folder and grounding contact are fixed on the below of busbar, and curved busbar is fixedly connected with busbar, and shading ring is fixed on curved busbar.
Described contact clip assembly comprises contact folder, spring base, stage clip, and spring base is fixed on stage clip on contact folder.
Described fixed contact openend outer ring is with extension spring.
Described arc-extinguish chamber is arranged with grading shield outside top, for internal field evenly.
The arc-extinguish chamber that described moving contact component is corresponding is arranged with grading ring outward, for internal field evenly.
The present invention adopts above structure, and the sealing ring on moving contact component forms enclosed cavity with the contact of arc-extinguish chamber inwall, and when on-load switch separating brake, mechanism drives connecting lever rotation, by connecting rod, drives moving contact component to move downward, and makes the SF in closed cavity
6gas is compressed, the SF of compression
6gas sprays from spout with high speed, by striking pin with the arc extinction between arcing contact.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Fig. 1 is a kind of high voltage direct action pneumatic type of the present invention SF
6the structural representation of load switching unit;
Fig. 2 is a kind of high voltage direct action pneumatic type of the present invention SF
6the assembling schematic diagram of load switching unit;
Fig. 3 is a kind of high voltage direct action pneumatic type of the present invention SF
6the moving contact component structural representation of load switching unit.
Embodiment
Refer to shown in Fig. 1～3,
A kind of high voltage direct action pneumatic type SF
6load switching unit, in fixed contact 2, be provided with striking pin 3, moving contact component 7 is located at arc-extinguish chamber 5, moving contact component 7 contacts with arc-extinguish chamber 5 inwalls and forms enclosed cavity, it is characterized in that: also comprise switch enclosure 8, contact clip assembly 12, connecting rod 10, connecting lever 9, shading ring 11, busbar 127, described arc-extinguish chamber 5 is fixedly connected with switch enclosure 8, described moving contact component 7 comprises moving contact 73, arcing contact 72, nozzle 71, lever 76 and the collar 74, described arcing contact 72 is located between moving contact 73 and nozzle 71, arcing contact 72 is fixed on moving contact 73, nozzle 71 is fixed with arcing contact 72 buckles, lever 76 one end are fixedly connected with moving contact 73, the collar 74 is stuck in moving contact 73 outer rings, sealing ring 75 is enclosed within the collar 74 outer rings, lever 76 lower ends are positioned at switch enclosure 8, connecting rod 10 two ends respectively with lever 76, connecting lever 9 is rotationally connected, described contact clip assembly 12 is placed on lever 76 external diameters, with lever 76 external diameter Elastic Contact, busbar 127 is fixedly connected with contact clip assembly 12, grounding contact folder 124 and grounding contact 125 are fixed on the below of busbar 127, curved busbar 126 is fixedly connected with busbar 127, shading ring 11 is fixed on curved busbar 126.
Described contact clip assembly 12 comprises contact folder 123, spring base 121, stage clip 122, and spring base 121 is fixed on stage clip 122 on contact folder 123.
Described fixed contact 2 openend outer rings are with extension spring 4.
Described arc-extinguish chamber is arranged with grading shield 1 outside 5 tops, for internal field evenly.
The outer grading ring 6 that is arranged with of arc-extinguish chamber 5 of described moving contact component 7 correspondences, for internal field evenly.
The present invention includes fixed contact 2, striking pin 3, moving contact component 7, arc-extinguish chamber 5, arc-extinguish chamber 5 inwall contacts form enclosed cavity, arc-extinguish chamber 5 is fixedly connected with switch enclosure 8, fixed contact 2 is fixed on the top in arc-extinguish chamber 5, striking pin 3 is located in fixed contact 2, extension spring 4 shroud rings are in fixed contact 2 openend outer rings, grading shield 1 is located at arc-extinguish chamber 5 tops, the coated fixed contact 2 of arc-extinguish chamber 5, grading ring 6 is located at the peripheral corresponding contact assembly 7 in arc-extinguish chamber 5 middle parts, contact clip assembly 12 is assemblied in switch enclosure 8, be fixedly connected with switch enclosure 8, shading ring 11 is fixed on curved busbar 126, connecting lever 9 is placed in switch enclosure 8, moving contact component 7 is connected with connecting lever 9 by connecting rod 10 and forms enclosed cavity with arc-extinguish chamber 5, mechanism drives connecting lever 9 rotations, by connecting rod 10, drive moving contact component 7 to complete on/off switch action and arc extinguishing.
Described moving contact component 7 comprises moving contact 73, arcing contact 72, nozzle 71, lever 76 and the collar 74, described arcing contact 72 is fixed on moving contact 73, lever 76 is with moving contact 73 riveted joints, nozzle 71 is located at moving contact 73 tops, the collar 74 is stuck in moving contact 73 peripheries, and sealing ring 75 is enclosed within the collar 74 peripheries.
Described contact clip assembly 12 comprises contact folder 123, spring base 121, stage clip 122, contact folder 123 is fixed on busbar 127 tops by nut 128, spring base 121 is fixed on stage clip 122 on contact folder 123, grounding contact folder 124 is fixed on the below of busbar 127 with grounding contact 125, curved busbar 126 is fixedly connected with busbar 127.
Under "on" position, the tensile force after described moving contact component 7 contacts with fixed contact 2, is provided by extension spring 4.
Closing operation: mechanism drives connecting lever 9 to turn clockwise, drives moving contact component 7 to move upward by connecting rod 10, and arcing contact 72 first contacts with striking pin 3, and moving contact 73 inserts in fixed contact 2 subsequently, completes feed motion.
Sub-switching operation: mechanism drives connecting lever 9 to be rotated counterclockwise, drives moving contact component 7 to move downward by connecting rod 10, makes the SF in closed cavity
6gas is compressed, and moving contact 73 is separated at first with fixed contact 2, and arcing contact 72 is separated and produce electric arc with striking pin 3 subsequently, and along with the motion of moving contact component 7, the air pressure in closed cavity increases, SF at a high speed
6air-flow sprays from spout, by striking pin with the arc extinction between arcing contact.
Claims (5)
1. a high voltage direct action pneumatic type SF
6load switching unit, comprises fixed contact, striking pin, moving contact component, arc-extinguish chamber, fixed contact is fixedly mounted on arc-extinguish chamber upper end, is provided with striking pin in fixed contact, and moving contact component is located at arc-extinguish chamber, and moving contact component contacts with arc-extinguish chamber inwall and forms enclosed cavity, it is characterized in that: also comprise switch enclosure, contact clip assembly, connecting rod, connecting lever, shading ring, busbar, described arc-extinguish chamber is fixedly connected with switch enclosure, and described moving contact component comprises moving contact, arcing contact, nozzle, lever and the collar, described arcing contact is located between moving contact and nozzle, arcing contact is fixed on moving contact, nozzle is fixedly connected with moving contact, lever one end is fixedly connected with moving contact, and the collar is stuck in moving contact outer ring, and sealing ring is enclosed within collar outer ring, lever lower end is positioned at switch enclosure, connecting rod two ends respectively with lever, connecting lever is rotationally connected, and described contact clip assembly is placed on lever external diameter, with lever external diameter Elastic Contact, busbar is fixedly connected with contact clip assembly, grounding contact folder and grounding contact are fixed on the below of busbar, and curved busbar is fixedly connected with busbar, and shading ring is fixed on curved busbar.
2. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described contact clip assembly comprises contact folder, spring base, stage clip, and spring base is fixed on stage clip on contact folder.
3. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described fixed contact openend outer ring is with extension spring.
4. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: described arc-extinguish chamber is arranged with grading shield outside top.
5. a kind of high voltage direct action pneumatic type SF according to claim 1
6load switching unit, is characterized in that: the arc-extinguish chamber that described moving contact component is corresponding is arranged with grading ring outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684232.9A CN103646820A (en) | 2013-12-13 | 2013-12-13 | High-voltage directly-operated air-compressing type SF6 load switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684232.9A CN103646820A (en) | 2013-12-13 | 2013-12-13 | High-voltage directly-operated air-compressing type SF6 load switch device |
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| Publication Number | Publication Date |
|---|---|
| CN103646820A true CN103646820A (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684232.9A Pending CN103646820A (en) | 2013-12-13 | 2013-12-13 | High-voltage directly-operated air-compressing type SF6 load switch device |
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| CN (1) | CN103646820A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118731A (en) * | 2015-09-15 | 2015-12-02 | 西山煤电（集团）天安电气有限责任公司 | Puffer arc extinguishing chamber |
| CN105489437A (en) * | 2016-01-08 | 2016-04-13 | 中能电气（福清）有限公司 | Pressure-operated load switch for high-voltage gas insulation ring-network cabinet |
| CN105675944A (en) * | 2016-04-07 | 2016-06-15 | 威胜集团有限公司 | Three-phase combined load switch module |
| CN108258611A (en) * | 2018-02-08 | 2018-07-06 | 广东金晖隆开关有限公司 | A kind of environment-friendly type air insulated switch cabinet |
| CN108335926A (en) * | 2018-02-08 | 2018-07-27 | 广东金晖隆开关有限公司 | A kind of shielding construction of environment-protecting cabinet contact |
| CN109346352A (en) * | 2018-12-04 | 2019-02-15 | 国网山东省电力公司汶上县供电公司 | A kind of SF6Switch arc-extinguish chamber fastening tool and manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095183A (en) * | 1989-01-17 | 1992-03-10 | Merlin Gerin | Gas-blast electrical circuit breaker |
| CN201449932U (en) * | 2009-07-13 | 2010-05-05 | 西安森源开关技术研究所有限公司 | Double-acting self energy thermal expansion type high-pressure sulfur hexafluoride breaker arc extinguish chamber |
| CN202616136U (en) * | 2012-03-12 | 2012-12-19 | 福建中能电气股份有限公司 | Load switch for 40.5kV SF6 inflation ring main unit |
| CN202772039U (en) * | 2012-07-24 | 2013-03-06 | 上海天灵开关厂有限公司 | Pressure-operated load switch for gas insulation ring-network cabinet |
| CN203644655U (en) * | 2013-12-13 | 2014-06-11 | 上海灏赛电器有限公司 | High pressure direct pneumatic SF6 load switch device |
-
2013
- 2013-12-13 CN CN201310684232.9A patent/CN103646820A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095183A (en) * | 1989-01-17 | 1992-03-10 | Merlin Gerin | Gas-blast electrical circuit breaker |
| CN201449932U (en) * | 2009-07-13 | 2010-05-05 | 西安森源开关技术研究所有限公司 | Double-acting self energy thermal expansion type high-pressure sulfur hexafluoride breaker arc extinguish chamber |
| CN202616136U (en) * | 2012-03-12 | 2012-12-19 | 福建中能电气股份有限公司 | Load switch for 40.5kV SF6 inflation ring main unit |
| CN202772039U (en) * | 2012-07-24 | 2013-03-06 | 上海天灵开关厂有限公司 | Pressure-operated load switch for gas insulation ring-network cabinet |
| CN203644655U (en) * | 2013-12-13 | 2014-06-11 | 上海灏赛电器有限公司 | High pressure direct pneumatic SF6 load switch device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118731A (en) * | 2015-09-15 | 2015-12-02 | 西山煤电（集团）天安电气有限责任公司 | Puffer arc extinguishing chamber |
| CN105489437A (en) * | 2016-01-08 | 2016-04-13 | 中能电气（福清）有限公司 | Pressure-operated load switch for high-voltage gas insulation ring-network cabinet |
| CN105489437B (en) * | 2016-01-08 | 2018-11-06 | 福建中能电气有限公司 | A kind of pressure-operated load switch for high pressure gas insulation ring main unit |
| CN105675944A (en) * | 2016-04-07 | 2016-06-15 | 威胜集团有限公司 | Three-phase combined load switch module |
| CN108258611A (en) * | 2018-02-08 | 2018-07-06 | 广东金晖隆开关有限公司 | A kind of environment-friendly type air insulated switch cabinet |
| CN108335926A (en) * | 2018-02-08 | 2018-07-27 | 广东金晖隆开关有限公司 | A kind of shielding construction of environment-protecting cabinet contact |
| CN109346352A (en) * | 2018-12-04 | 2019-02-15 | 国网山东省电力公司汶上县供电公司 | A kind of SF6Switch arc-extinguish chamber fastening tool and manufacturing method |
| CN109346352B (en) * | 2018-12-04 | 2023-09-08 | 国网山东省电力公司汶上县供电公司 | SF (sulfur hexafluoride) 6 Fastening tool for switch arc extinguishing cover and manufacturing method |
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Application publication date: 20140319 |