CN108288560A - The insulated leg of direct-acting three-working-position isolation major loop - Google Patents
The insulated leg of direct-acting three-working-position isolation major loop Download PDFInfo
- Publication number
- CN108288560A CN108288560A CN201711451112.9A CN201711451112A CN108288560A CN 108288560 A CN108288560 A CN 108288560A CN 201711451112 A CN201711451112 A CN 201711451112A CN 108288560 A CN108288560 A CN 108288560A
- Authority
- CN
- China
- Prior art keywords
- embedding nut
- insulated leg
- isolation
- nut groove
- acting
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000007789 sealing 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
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/48—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
Landscapes
- Insulators (AREA)
Abstract
The invention discloses a kind of insulated legs of direct-acting three-working-position isolation major loop, insulated leg ontology includes connecting end, ground terminal and isolation end, isolation end includes the bullet for being symmetricly set on insulated leg ontology or more both sides, plug is installed in bullet, it connects end and ground terminal top and is all provided with that there are two upper embedding nut grooves, it connects the support body bottom position of becoming attached to corresponding to end, ground terminal and isolation end and is equipped with down embedding nut groove, under the periphery of embedding nut groove be equipped with seal groove, upper embedding nut groove and under be cast with embedding nut in embedding nut groove.The present invention is by way of reasonably optimizing and uniform electric field arrangement, effectively increase the insulating capacity of tri-station isolating switch fracture, to improve the insulation performance of tri-station isolating switch and the reliability of switchgear, its is simple and compact for structure, reliability is high, easy for installation, percent of pass of the switchgear in delivery test is increased, the production efficiency of product is improved.
Description
Technical field
The present invention relates to high pressure switching equipment technology, specifically a kind of direct-acting three-working-position isolation master
The insulated leg in circuit.
Background technology
Three disconnecting switch of Direct Action Type are commonly used in Cubicle Gas-Insulated Switchgear, it is a kind of will to keep apart
The device that both pass and earthing switch function integrate, being mainly characterized by being isolated, being grounded, connect three operating positions is
Uniquely, that is, it is in isolated location to switch not, is exactly that just can so form reliable machinery in on-position or earthing position and close
Lock, earthing switch is closed for preventing under major loop electriferous state.In recent years, with the relevant technologies of gas-filled switching tube equipment constantly into
Step and development, in order to adapt to the demand of more users, the voltage class and current class of product are continuously improved, main bus-bar volume with
It is accordingly to increased, just cause the space inside closed switch cabinet constantly to reduce in this way, tri-station isolating switch fracture（Isolation
Fracture, ground connection fracture）Insulation performance just require accordingly it is more stringent.Cubicle Gas-Insulated Switchgear 40.5kV electricity
Press grade products in its delivery test, flashover and shelf depreciation easily occur for incision position, need often to open gas chamber replacement absolutely
Edge bearing, increases use cost, and there are security risks.
Invention content
It is existing to solve the object of the present invention is to provide a kind of insulated leg of direct-acting three-working-position isolation major loop
Flashover, partial discharge phenomenon easily occur for tri-station isolating switch insulated leg in Cubicle Gas-Insulated Switchgear, to
It causes usually to need to open the rework problems that gas chamber replaces insulated leg.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of insulated leg of direct-acting three-working-position isolation major loop, it includes insulated leg ontology, the insulated leg
Ontology is tube structure hollow made of epoxy resin once-cast, includes positioned at the connection end of both sides and ground terminal, centre
Isolation end equipped with perforation, isolation end include the bullet for being symmetricly set on insulated leg ontology or more both sides, are pacified in bullet
Equipped with plug, connects end and ground terminal top and be all provided with there are two upper embedding nut groove, connect corresponding to end, ground terminal and isolation end
Support body of becoming attached to bottom position is equipped with down embedding nut groove, under embedding nut groove periphery be equipped with seal groove, upper embedding nut groove and
Under be cast with embedding nut in embedding nut groove.
Preferably, shielding case is equipped between the outer wall of the plug and the inner wall of bullet, it is symmetrical on the outer wall of shielding case
If there are two in flakes.
Preferably, the both ends of the shielding case are arranged with annular edge, and shielding case is by the good Buddhist nun of electric conductivity
Imperial shielding material is prepared.
Preferably, the bottom periphery of the corresponding insulated leg ontology of the isolation end be evenly equipped with it is several under embedding nut groove, often
Embedding nut is cast under a in embedding nut groove.
Preferably, the bottom for connecting the insulated leg ontology corresponding to end and ground terminal is all provided with embedding nut under two
Slot is cast with embedding nut in embedding nut groove under each.
Preferably, mould material is the good epoxy resin of insulation performance.
In the use of the present invention, first the present invention is installed on Cubicle Gas-Insulated Switchgear, end top is connected
Embedding nut connected by fabrication hole with bolt with the holder that makes contact, the plug and insulating contact installed in isolation end bullet
Holder bolt is connected by the threaded hole on plug, and the embedding nut and grounding contact holder bolt on ground terminal top pass through work
Skill hole connects.After the completion of insulated leg assembly, the bottom plate of gas chamber and embedding nut are linked together with bolt.
It is found by experiment that, of the present invention using epoxy resin is the insulated leg of material gas-insulated metal-enclosed
Tri-station isolating switch fracture insulation performance shows excellent, shelf depreciation and flashover when switchgear voltage class reaches 40.5kV
Phenomenon does not occur.
Beneficial effects of the present invention are：
（1）The present invention effectively increases tri-station isolating switch fracture by way of reasonably optimizing and uniform electric field arrangement
Insulating capacity, the electric field at even fracture, to improve tri-station isolating switch insulation performance and switchgear it is reliable
Property, it is simple and compact for structure, reliability is high, easy for installation, while percent of pass of the switchgear in delivery test is also increased,
Improve the production efficiency of product；
（2）Insulated leg ontology is that epoxide resin material is poured into a mould in the present invention, and surface is smooth and intact material, in vivo without gas
The connecting material of bubble, crackle, insulated leg and embedding nut is the good epoxide resin material of insulation performance so that the present invention has
Extremely strong insulation performance, reliability are high；
（3）Sealing ring is set around embedding nut groove, ensure that the air-tightness of gas chamber；
（4）The good shielding case of electric conductivity is arranged in the external of plug, and the field strength distribution that the shape of shielding case makes conductor generate is equal
It is even, maximum field intensity values have effectively dropped.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the stereogram exploded view of the present invention；
Fig. 3 is the structural schematic diagram of insulated leg ontology in the present invention；
Fig. 4 is the structural schematic diagram of insulated leg ontology in the present invention；
Fig. 5 is the structural schematic diagram of shielding case in the present invention；
Fig. 6 is the usage state diagram of this practicality.
In figure：1, connect end, 2, ground terminal, 3, insulated leg ontology, 4, isolation end, 5, upper embedding nut groove, 6, under embedding spiral shell
Female groove, 7, plug, 8, shielding case, 9, in flakes, 10, bullet, 11, make contact holder, 12, insulating contact holder, 13, ground connection
Contact supporting.
Specific implementation mode
The invention will now be described in further detail with reference to the accompanying drawings.
A kind of insulated leg of direct-acting three-working-position isolation major loop as shown in Figures 1 to 5, it includes insulation branch
Seat ontology 3, insulated leg ontology 3 are tube structure hollow made of epoxy resin once-cast, include connecing positioned at both sides
Go side 1 and ground terminal 2, centre are equipped with the isolation end 4 of perforation, and isolation end 4 includes being symmetricly set on insulated leg ontology about 1 two
The bullet 10 of side is equipped with plug 7 in bullet 10, connects end 1 and 2 top of ground terminal and is all provided with there are two upper embedding nut groove 5,
Connect 3 bottom position of support body of becoming attached to corresponding to end 1, ground terminal 2 and isolation end 4 and be equipped with down embedding nut groove 6, under embedding spiral shell
The periphery of female groove 6 is equipped with seal groove, and upper embedding nut groove 5 is cast with embedding nut under in embedding nut groove 6.
It is equipped with shielding case 8 between the outer wall and the inner wall of bullet 10 of plug 7, two are arranged on the outer wall of shielding case 8
A in flakes 9.
The both ends of shielding case 8 are arranged with annular edge, and shielding case 8 is by the good nylon shielding material of electric conductivity
It is prepared.
The bottom periphery of 4 corresponding insulated leg ontology 3 of isolation end be evenly equipped with it is several under embedding nut groove 6, it is each under embedding spiral shell
Embedding nut is cast in female groove 6.The bottom of insulated leg ontology 3 corresponding to connection end 1 and ground terminal 2 is all provided with embedding under two
Nut groove 6 is cast with embedding nut in embedding nut groove 6 under each.Mould material is the good epoxy resin of insulation performance.
In the use of the present invention, first the present invention is installed on Cubicle Gas-Insulated Switchgear, 1 top of end is connected
Embedding nut connected by fabrication hole with bolt with the holder 11 that makes contact, the plug 7 installed in 4 bullet 10 of isolation end and every
It is connected by the threaded hole on plug 7 with bolt from contact supporting 12, the embedding nut and grounding contact holder 13 on 2 top of ground terminal
It is connected by fabrication hole with bolt.After the completion of insulated leg assembly, the bottom plate of gas chamber and embedding nut are linked together with bolt.
It is found by experiment that, of the present invention using epoxy resin is the insulated leg of material gas-insulated metal-enclosed
Tri-station isolating switch fracture insulation performance shows excellent, shelf depreciation and flashover when switchgear voltage class reaches 40.5kV
Phenomenon does not occur.
The present invention effectively increases tri-station isolating switch fracture by way of reasonably optimizing and uniform electric field arrangement
Insulating capacity, the electric field at even fracture, to improve tri-station isolating switch insulation performance and switchgear it is reliable
Property, it is simple and compact for structure, reliability is high, easy for installation, while percent of pass of the switchgear in delivery test is also increased,
Improve the production efficiency of product.
Claims (6)
1. a kind of insulated leg of direct-acting three-working-position isolation major loop, it includes insulated leg ontology（3）, feature exists
In：The insulated leg ontology（3）Include connecing positioned at both sides for tube structure hollow made of epoxy resin once-cast
Go side（1）And ground terminal（2）, centre is equipped with the isolation end of perforation（4）, isolation end（4）Including being symmetricly set on insulated leg sheet
Body（1）The bullet of upper and lower both sides（10）, bullet（10）In plug is installed（7）, connect end（1）And ground terminal（2）Top
Upper embedding nut groove there are two being all provided with（5）, connect end（1）, ground terminal（2）And isolation end（4）Corresponding support body of becoming attached to（3）
Bottom position is equipped with down embedding nut groove（6）, under embedding nut groove（6）Periphery be equipped with seal groove, upper embedding nut groove（5）It is embedding under
Nut groove（6）In be cast with embedding nut.
2. the insulated leg of direct-acting three-working-position isolation major loop according to claim 1, it is characterised in that：It is described
Plug（7）Outer wall and bullet（10）Inner wall between be equipped with shielding case（8）, shielding case（8）Outer wall on be arranged with two
It is a in flakes（9）.
3. the insulated leg of direct-acting three-working-position isolation major loop according to claim 2, it is characterised in that：It is described
Shielding case（8）Both ends be arranged with annular edge, shielding case（8）It is prepared by the good nylon shielding material of electric conductivity
It forms.
4. the insulated leg of direct-acting three-working-position isolation major loop according to claim 1 or 2 or 3, feature exist
In：The isolation end（4）Corresponding insulated leg ontology（3）Bottom periphery be evenly equipped with it is several under embedding nut groove（6）, under each
Embedding nut groove（6）In be cast with embedding nut.
5. the insulated leg of direct-acting three-working-position isolation major loop according to claim 4, it is characterised in that：It is described
Connect end（1）And ground terminal（2）Corresponding insulated leg ontology（3）Bottom be all provided with embedding nut groove under two（6）, under each
Embedding nut groove（6）In be cast with embedding nut.
6. the insulated leg of direct-acting three-working-position isolation major loop according to claim 5, it is characterised in that：Cast
Material is the good epoxy resin of insulation performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451112.9A CN108288560A (en) | 2017-12-27 | 2017-12-27 | The insulated leg of direct-acting three-working-position isolation major loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451112.9A CN108288560A (en) | 2017-12-27 | 2017-12-27 | The insulated leg of direct-acting three-working-position isolation major loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108288560A true CN108288560A (en) | 2018-07-17 |
Family
ID=62832404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711451112.9A Pending CN108288560A (en) | 2017-12-27 | 2017-12-27 | The insulated leg of direct-acting three-working-position isolation major loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108288560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859980A (en) * | 2018-12-10 | 2019-06-07 | 河南平高通用电气有限公司 | Inflatable cabinet and its direct-acting three-position switch |
| CN113990703A (en) * | 2021-10-21 | 2022-01-28 | 上海平高天灵开关有限公司 | Adjustable supporting seat structure of three-station isolation cutter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363343U (en) * | 2011-11-27 | 2012-08-01 | 天水长城开关厂有限公司 | Main-loop insulation part of three-position disconnecting switch |
| CN204315438U (en) * | 2014-12-05 | 2015-05-06 | 甘肃长城电工电器工程研究院有限公司 | Gas-filling cabinet major loop insulated support |
| CN105185642A (en) * | 2015-09-16 | 2015-12-23 | 上海天灵开关厂有限公司 | Directly-operated three-station disconnecting switch and gas-insulated switchgear |
| CN207818452U (en) * | 2017-12-27 | 2018-09-04 | 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 |
-
2017
- 2017-12-27 CN CN201711451112.9A patent/CN108288560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363343U (en) * | 2011-11-27 | 2012-08-01 | 天水长城开关厂有限公司 | Main-loop insulation part of three-position disconnecting switch |
| CN204315438U (en) * | 2014-12-05 | 2015-05-06 | 甘肃长城电工电器工程研究院有限公司 | Gas-filling cabinet major loop insulated support |
| CN105185642A (en) * | 2015-09-16 | 2015-12-23 | 上海天灵开关厂有限公司 | Directly-operated three-station disconnecting switch and gas-insulated switchgear |
| CN207818452U (en) * | 2017-12-27 | 2018-09-04 | 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859980A (en) * | 2018-12-10 | 2019-06-07 | 河南平高通用电气有限公司 | Inflatable cabinet and its direct-acting three-position switch |
| CN109859980B (en) * | 2018-12-10 | 2020-10-23 | 河南平高通用电气有限公司 | Inflatable cabinet and its direct-acting three-position switch |
| CN113990703A (en) * | 2021-10-21 | 2022-01-28 | 上海平高天灵开关有限公司 | Adjustable supporting seat structure of three-station isolation cutter |
| CN113990703B (en) * | 2021-10-21 | 2023-07-11 | 上海平高天灵开关有限公司 | Adjustable supporting seat structure of three-station isolation knife |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180717 |