CN107301929A - A kind of switch fixed contact structure - Google Patents
A kind of switch fixed contact structure Download PDFInfo
- Publication number
- CN107301929A CN107301929A CN201610229510.5A CN201610229510A CN107301929A CN 107301929 A CN107301929 A CN 107301929A CN 201610229510 A CN201610229510 A CN 201610229510A CN 107301929 A CN107301929 A CN 107301929A
- Authority
- CN
- China
- Prior art keywords
- head rod
- stationary contact
- contact head
- wire clamp
- switch fixed
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/12—Bases; Stationary contacts mounted thereon
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention discloses a kind of switch fixed contact structure.Its structure：Bus is clamped between upper clamping boss and the bus wire clamp in the middle part of conductive plate by bolt, stationary contact head rod is clamped between left stationary contact head rod wire clamp and right stationary contact head rod wire clamp by bolt, and the setting parallel with conductive plate of stationary contact head rod, at least one left line wire is clamped between left gripping block and left stationary contact head rod wire clamp by bolt, and the annular for closing the formation of left line wire, at least one right line wire is clamped between right gripping block and right stationary contact head rod wire clamp by bolt, and the annular that the formation of right line wire is closed.The present invention is simple and reasonable for structure, and assembly and adjustment is convenient.Increase conductive portions contact area, effectively reduce contact resistance, effectively reduce contact resistance.And enhancing electric conductivity, it is anti-oxidant, make conductive contact effect more preferable.Efficiency is improved, heavy high-altitude manual labor is alleviated, personnel's operating risk is reduced, it is ensured that the safe and reliable power supply of system.
Description
Technical field
The present invention relates to a kind of static contact structure, more particularly, to a kind of switch fixed contact structure.Belong to field of power.
Background technology
GW16 types disconnecting link is widely used in transformer station, usage amount is larger, it is a kind of disconnecting link of vertical-fracture form, it is affected by the surrounding environment with the growth of operation hours, such as industrial gas emission pollution, particularly chemical emission exhaust emission, salt-alkali contaminated corrosion, long oxidation corrosion etc., so that oxidation corrosion easily occurs for each conductive contact surfaces of disconnecting link, increase to contact resistance is made, disconnecting link is caused to overheat in operation, in recent years, switch fixed contact is conductively connected part oxidation superheating phenomenon and happened occasionally, found mostly as conductive contact surfaces oxidation through strip inspection, connecting bolt loosening etc..Because switch fixed contact is on equipment bus, interruption maintenance number of times is relatively fewer.Therefore, the safe and reliable operation of static contact seems particularly significant to the safety and stability of power network.
With the development of power system, the requirement of quality, the reliability of power supply to power supply is also higher.Equipment have a power failure chance is fewer and fewer, power off time is also shorter and shorter.Thoroughly solve cumbersome grid switching operation, dangerous, heavy manpower work high above the ground, it is ensured that system safety operation, guarantee equipment and personal security are the task of top priority, are also puzzlement staff and need urgent problem to be solved.
The content of the invention
The present invention is exactly a kind of in order to solve the above-mentioned technical problem and stationary contact head rod cable clamp structure provided, reaches that efficiently solving GW16 type switch fixed contacts is conductively connected the problem easily generated heat of part, and a kind of switch fixed contact structure simple in construction, cheap.
The technical solution adopted by the present invention is：A kind of switch fixed contact structure, its structure is as follows：Bus is clamped between upper clamping boss and the bus wire clamp in the middle part of conductive plate by bolt, stationary contact head rod is clamped between left stationary contact head rod wire clamp and right stationary contact head rod wire clamp by bolt, and the setting parallel with conductive plate of stationary contact head rod, at least one left line wire is clamped between left gripping block and left stationary contact head rod wire clamp by bolt, and the annular for closing the formation of left line wire, at least one right line wire is clamped between right gripping block and right stationary contact head rod wire clamp by bolt, and the annular that the formation of right line wire is closed.
Adapting position between described upper clamping boss and bus wire clamp is arranged with the deep-slotted chip breaker of fixed bus.
Described left and right stationary contact head rod wire clamp is constituted by train wheel bridge and lower plate.
Adapting position between described train wheel bridge and lower plate is arranged with fixed left or right line wire（Deep-slotted chip breaker.
Described left and right gripping block is constituted by the lower clamping boss and clamping plate of the left and right end of conductive plate.
Adapting position between described lower clamping boss and clamping plate is arranged with the deep-slotted chip breaker of fixed left or right line wire.
Described deep-slotted chip breaker is laterally set perpendicular to conductive plate length direction.
Described left or right line wire is LGJ240mm2Steel-cored aluminium strand, it winds the number of turns and set by the conductive rated current of disconnecting link.
Described stationary contact head rod is made of the silver-plated hollow copper tubing of conductive contact surfaces.
The present invention due to being had the following advantages that compared with prior art using said structure：
A kind of switch fixed contact structure of the present invention, its static contact material is light excellent, simple and reasonable for structure, and assembly and adjustment is convenient.Optimize the connection between stationary contact head rod and connecting wire, increase conductive portions contact area, effectively reduce contact resistance；The connection between conductive plate and bus, connecting wire is also optimized simultaneously, effectively reduces contact resistance.Each terminal plate conductive contact surfaces are handled through specific coatings, strengthen electric conductivity, anti-oxidant, make conductive contact effect more preferable.The present invention is greatly reduced switch fixed contact current-carrying part and occurred thermal oxide, the occurrence probability of scaling loss, eliminate safe hidden trouble, saving time and cost, improve efficiency, alleviate heavy high-altitude manual labor, reduction personnel's operating risk, the safe and reliable power supply of guarantee system, with preferable economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram of switch fixed contact structure of the invention；
Fig. 2 is a kind of left view structural representation of switch fixed contact structure of the invention；
Fig. 3 is the main structure diagram of left and right stationary contact head rod wire clamp profile of the invention；
Fig. 4 is the left view structural representation of the left and right stationary contact head rod wire clamps of Fig. 3 of the present invention.
In figure：Bus 1, bus wire clamp 2, upper clamping boss 3, conductive plate 4, right gripping block 5, lower clamping boss 6, clamping plate 7, right line wire 8, train wheel bridge 9, lower plate 10, right stationary contact head rod wire clamp 11, stationary contact head rod 12, left stationary contact head rod wire clamp 13, left line wire 14, left gripping block 15.
Embodiment
The present invention is described in further detail with reference to specific embodiment, but protection scope of the present invention is not limited by specific embodiment, is defined by claims.In addition, so that without prejudice on the premise of technical solution of the present invention, any modifications or changes that those of ordinary skill in the art made for the present invention easily realize are fallen within scope of the presently claimed invention.
Embodiment 1
A kind of switch fixed contact structure of the invention as shown in Figure 1,2,3, 4, its structure is as follows：Bus 1 is clamped between the upper clamping boss 3 at the middle part of conductive plate 4 and bus wire clamp 2 by bolt, stationary contact head rod 12 is clamped between left stationary contact head rod wire clamp 13 and right stationary contact head rod wire clamp 11 by bolt, and the setting parallel with conductive plate 4 of stationary contact head rod 12, at least one left line wire 14 is clamped between left gripping block 15 and left stationary contact head rod wire clamp 13 by bolt, and left line wire 14 is formed to the annular of closing, at least one right line wire 8 is clamped between right gripping block 5 and right stationary contact head rod wire clamp 11 by bolt, and right line wire 8 is formed to the annular of closing.
Adapting position between above-mentioned upper clamping boss and bus wire clamp is arranged with the deep-slotted chip breaker of fixed bus.
Above-mentioned left and right stationary contact head rod wire clamp is constituted by train wheel bridge and lower plate.
Positional symmetry between above-mentioned train wheel bridge and lower plate in the middle part of stationary contact head rod one end is provided with the circular arc of fixed stationary contact head rod, and the size of the circular arc is adapted with the external diameter of stationary contact head rod.
The adapting position away from stationary contact head rod one end is arranged with the deep-slotted chip breaker of fixed left or right line wire between above-mentioned train wheel bridge and lower plate, and the size of the deep-slotted chip breaker is adapted with the external diameter of left or right line wire.
Above-mentioned left and right gripping block is constituted by the lower clamping boss and clamping plate of the left and right end of conductive plate.
Adapting position between above-mentioned lower clamping boss and clamping plate is arranged with the deep-slotted chip breaker of fixed left or right line wire, and the size of the deep-slotted chip breaker is adapted with the external diameter of left or right line wire.
Above-mentioned deep-slotted chip breaker is laterally set perpendicular to conductive plate length direction.
Above-mentioned left or right line wire is LGJ240mm2Steel-cored aluminium strand, it winds the number of turns and set by the conductive rated current of disconnecting link.
Above-mentioned stationary contact head rod is made of the silver-plated hollow copper tubing of conductive contact surfaces.
Spot effect example
A kind of switch fixed contact structure of the present invention, 220 kv substation, 1 group of GW16-252 disconnecting link overhaul in Dashiqiao, because the operation time limit is longer, ageing equipment is serious, it is more frequent that superheating phenomenon occurs for switch fixed contact, strip inspection has been carried out in the former GW16-252 switch fixed contacts to disassembling, it is found that each wire clamp conductive contact surfaces oxidation is serious.Overhauled by this, former switch fixed contact is all replaced by switch fixed contact structure of the present invention, testing inspection data are good after installation, and later stage operations staff's tracing detection is all gone well, thoroughly improve switch fixed contact operation defective mode, it is ensured that power supply reliability.
Simple structure of the present invention, rationally, it is practical, effect substantially, be especially advantageous for power domain popularization and application.
Claims (10)
1. a kind of switch fixed contact structure, it is characterised in that structure is as follows：Bus（1）Conductive plate is clamped on by bolt（4）The upper clamping boss at middle part（3）With bus wire clamp（2）Between, stationary contact head rod（12）Left stationary contact head rod wire clamp is clamped on by bolt（13）With right stationary contact head rod wire clamp（11）Between, and stationary contact head rod（12）With conductive plate（4）It is parallel to set, at least one left line wire（14）Left gripping block is clamped on by bolt（15）With left stationary contact head rod wire clamp（13）Between, and by left line wire（14）Form the annular of closing, at least one right line wire（8）Right gripping block is clamped on by bolt（5）With right stationary contact head rod wire clamp（11）Between, and by right line wire（8）Form the annular of closing.
2. a kind of switch fixed contact structure according to claim 1, it is characterised in that described upper clamping boss（3）With bus wire clamp（2）Between adapting position be arranged with fixed bus（1）Deep-slotted chip breaker.
3. a kind of switch fixed contact structure according to claim 1, it is characterised in that described left and right stationary contact head rod wire clamp（13、11）By train wheel bridge（9）And lower plate（10）Composition.
4. a kind of switch fixed contact structure according to claim 3, it is characterised in that described train wheel bridge（9）And lower plate（10）Between close to stationary contact head rod（12）Positional symmetry in the middle part of one end is provided with fixed stationary contact head rod（12）Circular arc, and size and the stationary contact head rod of the circular arc（12）External diameter be adapted.
5. a kind of switch fixed contact structure according to claim 3, it is characterised in that described train wheel bridge（9）And lower plate（10）Between away from stationary contact head rod（12）The adapting position of one end is arranged with fixed left or right line wire（14、8）Deep-slotted chip breaker, and size and the left or right line wire of the deep-slotted chip breaker（14、8）External diameter be adapted.
6. a kind of switch fixed contact structure according to claim 1, it is characterised in that described left and right gripping block（15、5）By conductive plate（4）Left and right end lower clamping boss（6）And clamping plate（7）Composition.
7. a kind of switch fixed contact structure according to claim 6, it is characterised in that described lower clamping boss（6）And clamping plate（7）Between adapting position be arranged with fixed left or right line wire（14、8）Deep-slotted chip breaker, and size and the left or right line wire of the deep-slotted chip breaker（14、8）External diameter be adapted.
8. a kind of switch fixed contact structure according to claim 2,5 or 7, it is characterised in that described deep-slotted chip breaker is laterally perpendicular to conductive plate（4）Length direction is set.
9. a kind of switch fixed contact structure according to claim 1,5 or 7, it is characterised in that described left or right line wire（14、8）It is LGJ240mm2
Steel-cored aluminium strand, it winds the number of turns and set by the conductive rated current of disconnecting link.
10. a kind of switch fixed contact structure according to claim 1,4 or 5, it is characterised in that described stationary contact head rod（12）It is made of the silver-plated hollow copper tubing of conductive contact surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229510.5A CN107301929A (en) | 2016-04-14 | 2016-04-14 | A kind of switch fixed contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229510.5A CN107301929A (en) | 2016-04-14 | 2016-04-14 | A kind of switch fixed contact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107301929A true CN107301929A (en) | 2017-10-27 |
Family
ID=60136645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610229510.5A Pending CN107301929A (en) | 2016-04-14 | 2016-04-14 | A kind of switch fixed contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107301929A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962650A (en) * | 2018-10-13 | 2018-12-07 | 国网湖北省电力有限公司随州供电公司 | A kind of production method of device and switch fixed contact for switch fixed contact production |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504708A (en) * | 1982-03-17 | 1985-03-12 | Ruhrtal-Elektrizitatsgesellschaft Hartig Gmbh & Co. | Disconnect switch |
| CN201638735U (en) * | 2010-04-21 | 2010-11-17 | 山东泰开隔离开关有限公司 | Single-pole vertical-fracture telescopic outdoor high-voltage alternating-current isolating switch |
| CN203277183U (en) * | 2013-05-28 | 2013-11-06 | 浙江伏尔特电器有限公司 | Outdoor AC high-voltage disconnecting switch |
| CN203398698U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Support fitting of multi-group parallel bus |
| CN203398682U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Bus fitting with boss |
| CN204928025U (en) * | 2015-07-24 | 2015-12-30 | 香江科技股份有限公司 | Intelligence generating line bearing structure |
| CN105319501A (en) * | 2015-11-12 | 2016-02-10 | 河南平高电气股份有限公司 | Isolating switch test rack and test static contact thereof |
| CN205542534U (en) * | 2016-04-14 | 2016-08-31 | 国网辽宁省电力有限公司营口供电公司 | Switch static contact structure |
-
2016
- 2016-04-14 CN CN201610229510.5A patent/CN107301929A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504708A (en) * | 1982-03-17 | 1985-03-12 | Ruhrtal-Elektrizitatsgesellschaft Hartig Gmbh & Co. | Disconnect switch |
| CN201638735U (en) * | 2010-04-21 | 2010-11-17 | 山东泰开隔离开关有限公司 | Single-pole vertical-fracture telescopic outdoor high-voltage alternating-current isolating switch |
| CN203277183U (en) * | 2013-05-28 | 2013-11-06 | 浙江伏尔特电器有限公司 | Outdoor AC high-voltage disconnecting switch |
| CN203398698U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Support fitting of multi-group parallel bus |
| CN203398682U (en) * | 2013-08-08 | 2014-01-15 | 马鞍山市华能电力线路器材有限责任公司 | Bus fitting with boss |
| CN204928025U (en) * | 2015-07-24 | 2015-12-30 | 香江科技股份有限公司 | Intelligence generating line bearing structure |
| CN105319501A (en) * | 2015-11-12 | 2016-02-10 | 河南平高电气股份有限公司 | Isolating switch test rack and test static contact thereof |
| CN205542534U (en) * | 2016-04-14 | 2016-08-31 | 国网辽宁省电力有限公司营口供电公司 | Switch static contact structure |
Non-Patent Citations (1)
| Title |
|---|
| 广东电网公司佛山供电局组编: "《现场标准化作业指导书变电检修》", 28 February 2009, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962650A (en) * | 2018-10-13 | 2018-12-07 | 国网湖北省电力有限公司随州供电公司 | A kind of production method of device and switch fixed contact for switch fixed contact production |
| CN108962650B (en) * | 2018-10-13 | 2023-12-19 | 国网湖北省电力有限公司随州供电公司 | Device for manufacturing disconnecting link static contact and manufacturing method of disconnecting link static contact |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171027 |