CN105938774A - Rotary type double-break load switch - Google Patents
Rotary type double-break load switch Download PDFInfo
- Publication number
- CN105938774A CN105938774A CN201610483679.3A CN201610483679A CN105938774A CN 105938774 A CN105938774 A CN 105938774A CN 201610483679 A CN201610483679 A CN 201610483679A CN 105938774 A CN105938774 A CN 105938774A
- Authority
- CN
- China
- Prior art keywords
- contact
- main shaft
- station
- grounding
- pairs
- 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
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 230000005283 ground state Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/045—Means for extinguishing or preventing arc between current-carrying parts for arcs formed during closing
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a rotary type double-break load switch. The rotary type double-break load switch comprises a main shaft, N pairs of moving contacts, N pairs of grounding contacts, N pairs of fixed contacts and N pairs of metal arc chutes which are arranged on the main shaft, wherein N is at least one; the N pairs of moving contacts, the N pairs of grounding contacts, the N pairs of fixed contacts and the N pairs of metal arc chutes are respectively arranged in N planes vertical to the main shaft; one pair of grounding contacts, one pair of fixed contacts and one pair of metal arc chutes positioned in the same plane are symmetrically distributed by taking the main shaft as a center respectively so as to form a grounding station, a closing station and an opening station respectively; and the moving contacts are respectively switched among the grounding station, the closing station and the opening station by rotating the main shaft.
Description
Technical field
The present invention relates to electrical equipment technical field, particularly relate to a kind of rotary double-fracture on-load switch.
Background technology
The SF6 on-load switch of 10kV coordinates with limiting fuse can preferably protect transformator, is the most commonly used.At present, domestic existing tens manufacturers produce the SF6 on-load switch of various not jack per line.There is weak point in each producer to the key technical problem of the following aspects: how (1) improves the connecting-disconnecting function of on-load switch is on-load switch difficulties；(2) it is novel in on-load switch structure, simple how to make, and operation is reliably on-load switch difficulties；(3) how to make mechanical interlocking reliable, operation safety is also on-load switch difficulties.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of novel structure, safe and reliable rotary double-fracture on-load switch.
In order to realize object above, the technical solution adopted in the present invention is:
A kind of rotary double-fracture on-load switch, including main shaft, the N that is arranged on main shaft to moving contact, N to grounding contact, N to determining contact and N to metal arc-chute, wherein N is at least one；Metal arc-chute is respectively arranged in N number of plane being perpendicular to main shaft by described N by moving contact, N by grounding contact, N to determining contact and N, it is generally aligned in the same plane interior a pair grounding contact, determines contact for a pair and a pair metal arc-chute is all symmetrical centered by main shaft and respectively constitute ground connection station, combined floodgate station and separating brake station, make moving contact switch between ground connection station, combined floodgate station and separating brake station respectively by rotating main shaft.
Further, also include be arranged between adjacent plane for the moving contact of adjacent plane, grounding contact, determine contact and metal arc-chute carries out the insulating barrier of dielectric separation.
Further, described grounding contact is respectively connected with the main copper bar of ground connection.
The invention has the beneficial effects as follows: the present invention uses a pair moving contact in the mode of double-fracture, i.e. main shaft must determine with a pair after contact contacts connection simultaneously simultaneously and just can realize closing a floodgate, and determines to pass through arc-chute arc extinguishing when contact switches to combined floodgate station at it.Such design makes switch can reach the strongest connecting-disconnecting function.When as on-load switch and anti-closed ground switch, at least can close rated short circuit making current 63kA tetra-times and be not damaged by.Still have sizable remaining threephase load limit drop-out current to switch up to more than 2000A after the cut-offfing for 150 times of GB3804 regulation also there are the highest insulating properties there is when as disconnecting switch double-fracture dielectric level to can reach industrial frequency withstand voltage 49kV impulse withstand voltage 85kV.In addition the present invention realizes moving contact at ground connection station, combined floodgate station and separating brake station by rotating main shaft, correspondingly can realize the switch mutual switching between ground state, "on" position and gate-dividing state simply by the operation rotating main shaft, its operation is simple, diverse in function.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention.
Fig. 2 is present invention side sectional view under "on" position.
Fig. 3 is present invention side sectional view under gate-dividing state.
Fig. 4 is present invention side sectional view under ground state.
Wherein, 1-main shaft, 2-moving contact, 3-grounding contact, the main copper bar of 31-ground connection, 4-determines contact, 5-metal arc-chute, 6-insulating barrier.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, claimed technical solution of the invention is described in further detail.
See shown in accompanying drawing 1 to accompanying drawing 4, the one rotary double-fracture on-load switch of the present embodiment, including main shaft 1,2, three pairs of grounding contacts 3, three of three pairs of moving contacts of being arranged on main shaft 1 to determining contact 4 and three pairs of metal arc-chutes 5, wherein said grounding contact 3 is respectively connected with the main copper bar of ground connection 31.Moving contact 2, grounding contact 3, the logarithm of determining contact 4 and metal arc-chute 5 can adjust according to the actual requirements in other embodiments, it is only necessary to the logarithm of above-mentioned four is unanimously.
2, three pairs of grounding contacts 3, three of three pairs of described moving contacts are to determining contact 4 and three pairs of metal arc-chutes 5 are respectively arranged in three planes being perpendicular to main shaft 1, in the present embodiment, for preventing from short cut with each other between adjacent plane, be also provided with between adjacent plane for the moving contact 2 of adjacent plane, grounding contact 3, determine contact 4 and metal arc-chute 5 carries out the insulating barrier 6 of dielectric separation.
It is generally aligned in the same plane interior a pair grounding contact 3, determines contact 4 for a pair and a pair metal arc-chute 5 is all symmetrical centered by main shaft 1 and respectively constitute ground connection station, combined floodgate station and separating brake station, make moving contact 2 switch between ground connection station, combined floodgate station and separating brake station respectively by rotating main shaft 1.When a pair moving contact 2 switches to ground connection station, contacting with a pair grounding contact 3 respectively, now switch is in ground state；When a pair moving contact 2 switches to combined floodgate station, determining contact 4 respectively with a pair and contact, now switch is in "on" position；When a pair moving contact 2 switches to separating brake station, contacting with a pair metal arc-chute 5 respectively, now switch is in gate-dividing state.
The present embodiment uses the mode of double-fracture, i.e. a pair moving contact 2 on main shaft 1 must determine with a pair after contact 4 contacts connection simultaneously simultaneously and just can realize closing a floodgate, and determines to pass through arc-chute arc extinguishing when contact 4 switches to combined floodgate station at it.Such design makes switch can reach the strongest connecting-disconnecting function.When as on-load switch and anti-closed ground switch, at least can close rated short circuit making current 63 kA tetra-times and be not damaged by.Still have sizable remaining threephase load limit drop-out current to switch up to more than 2000A after the cut-offfing for 150 times of GB3804 regulation also there are the highest insulating properties there is when as disconnecting switch double-fracture dielectric level to can reach industrial frequency withstand voltage 49kV impulse withstand voltage 85 kV.In addition the present invention realizes moving contact 2 at ground connection station, combined floodgate station and separating brake station by rotating main shaft 1, correspondingly can realize the switch mutual switching between ground state, "on" position and gate-dividing state simply by the operation rotating main shaft 1, its operation is simple, diverse in function.
The embodiment of the above is only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction.Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, technical solution of the present invention is made more possible variation and retouching by the technology contents that all may utilize the disclosure above, or is revised as the Equivalent embodiments of equivalent variations.Therefore all contents without departing from technical solution of the present invention, the equivalent equivalence change made according to the thinking of the present invention, all should be covered by protection scope of the present invention.
Claims (3)
1. a rotary double-fracture on-load switch, it is characterised in that: the N include main shaft (1), being arranged on main shaft (1) is to moving contact (2), N to grounding contact (3), N to determining contact (4) and N to metal arc-chute (5), and wherein N is at least one；Metal arc-chute (5) is respectively arranged in N number of plane being perpendicular to main shaft (1) by described N by moving contact (2), N by grounding contact (3), N to determining contact (4) and N, it is generally aligned in the same plane interior a pair grounding contact (3), determines contact (4) for a pair and a pair metal arc-chute (5) is all symmetrical centered by main shaft (1) and respectively constitute ground connection station, combined floodgate station and separating brake station, make moving contact (2) switch between ground connection station, combined floodgate station and separating brake station respectively by rotating main shaft (1).
One the most according to claim 1 rotary double-fracture on-load switch, it is characterised in that: also include be arranged between adjacent plane for the moving contact of adjacent plane (2), grounding contact (3), determine contact (4) and metal arc-chute (5) carries out the insulating barrier (6) of dielectric separation.
One the most according to claim 1 rotary double-fracture on-load switch, it is characterised in that: described grounding contact (3) is respectively connected with the main copper bar of ground connection (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483679.3A CN105938774A (en) | 2016-06-28 | 2016-06-28 | Rotary type double-break load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483679.3A CN105938774A (en) | 2016-06-28 | 2016-06-28 | Rotary type double-break load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105938774A true CN105938774A (en) | 2016-09-14 |
Family
ID=56873346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483679.3A Pending CN105938774A (en) | 2016-06-28 | 2016-06-28 | Rotary type double-break load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105938774A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301745A (en) * | 2018-10-30 | 2019-02-01 | 江苏南瑞帕威尔电气有限公司 | A kind of double-fracture tri-station isolating switch in environmental protection gas-insulated ring network cabinet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008513A1 (en) * | 1978-08-18 | 1980-03-05 | George Caton | Switch arrangement for three-phase electrical supply |
| DE4008801A1 (en) * | 1989-03-20 | 1990-09-27 | Eb Distribusjon | Load switch esp. encapsulated gas insulated rotary switch - has switch housing rotated to closed open and also earth positions to assume switching position visible from outside |
| CN2762406Y (en) * | 2004-12-08 | 2006-03-01 | 上海天迅电气有限公司 | Indoor inflation looped network switch equipment |
| CN202712031U (en) * | 2012-05-18 | 2013-01-30 | 许继（厦门）智能电力设备股份有限公司 | Moving contact structure of 12kV three-position SF6 load switch |
| CN205092182U (en) * | 2015-11-05 | 2016-03-16 | 北海银河开关设备有限公司 | Double knives head three -workers bit switch |
| CN205900418U (en) * | 2016-06-28 | 2017-01-18 | 广东广特电气股份有限公司 | Rotation type double break mouth load switch |
-
2016
- 2016-06-28 CN CN201610483679.3A patent/CN105938774A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008513A1 (en) * | 1978-08-18 | 1980-03-05 | George Caton | Switch arrangement for three-phase electrical supply |
| DE4008801A1 (en) * | 1989-03-20 | 1990-09-27 | Eb Distribusjon | Load switch esp. encapsulated gas insulated rotary switch - has switch housing rotated to closed open and also earth positions to assume switching position visible from outside |
| CN2762406Y (en) * | 2004-12-08 | 2006-03-01 | 上海天迅电气有限公司 | Indoor inflation looped network switch equipment |
| CN202712031U (en) * | 2012-05-18 | 2013-01-30 | 许继（厦门）智能电力设备股份有限公司 | Moving contact structure of 12kV three-position SF6 load switch |
| CN205092182U (en) * | 2015-11-05 | 2016-03-16 | 北海银河开关设备有限公司 | Double knives head three -workers bit switch |
| CN205900418U (en) * | 2016-06-28 | 2017-01-18 | 广东广特电气股份有限公司 | Rotation type double break mouth load switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301745A (en) * | 2018-10-30 | 2019-02-01 | 江苏南瑞帕威尔电气有限公司 | A kind of double-fracture tri-station isolating switch in environmental protection gas-insulated ring network cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Jijiang Inventor after: Guo Haiping Inventor after: Ge Yunsheng Inventor after: Wu Huanye Inventor before: Yue Shengxian Inventor before: Guo Haiping Inventor before: Ge Yunsheng Inventor before: Wu Huanye |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
|
| RJ01 | Rejection of invention patent application after publication |