CN105161349A - 220kV disconnecting switch arc-striking device - Google Patents
220kV disconnecting switch arc-striking device Download PDFInfo
- Publication number
- CN105161349A CN105161349A CN201510385110.9A CN201510385110A CN105161349A CN 105161349 A CN105161349 A CN 105161349A CN 201510385110 A CN201510385110 A CN 201510385110A CN 105161349 A CN105161349 A CN 105161349A
- Authority
- CN
- China
- Prior art keywords
- arc
- isolating switch
- contact
- disconnecting switch
- striking
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 14
- 230000006378 damage Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000010891 electric arc Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a 220kV disconnecting switch arc-striking device, and the device comprises a conductive rod which is suspended under a static contact of a disconnecting switch, and an arc-striking rod which is disposed on a moving contact of the disconnecting switch. The arc-striking rod is rotatingly connected to a lower arm of the moving contact of the disconnecting switch, and is connected with an arc-striking conductor. The other end of the arc-striking conductor is fixedly connected to an upper arm of the moving contact of the disconnecting switch. The device is simple in structure, and is convenient for on-site use. The device firstly contacts with the conductive rod during switching-on, and is finally separated from the conductive rod during switching-off, thereby achieving the purpose of protecting the moving and static contacts, increasing the operation reliability of a knife switch and the integrity of equipment, and overcoming the huge workload caused by contact damage. The device reduces the number of maintenance times because of the damages to the moving and static contacts, improves the switching reliability and efficiency, reduces the fault rate of equipment, and meets the safe and stable requirements of 220kV equipment under a big-load condition.
Description
Technical field
The application relates to one and is applied on isolating switch, guarantees that the dynamic and static contact of isolating switch keeps in touch in divide-shut brake process, avoids the 220kV isolating switch arc-initiating device occurring phenomenon of arc discharge.
Background technology
In electric power converting equipment, isolating switch is xegregating unit effective in system or circuit, thus a kind of common equipment of convenient maintenance or the safety that has a power failure.Enter summer peak meeting and meet the time in kurtosis winter, 220kV network load increases suddenly, 220kV power system operating mode is frequently changed, grid switching operation makes the stability of isolating switch be subject to baptism frequently, especially winter operation, weather effect is relatively more serious, and the severe weather conditions such as icing often make isolating switch in making process, cannot close a floodgate and put in place, dynamic and static contact arcing causes contact to burn.
In current China converting equipment 220kV isolating switch, all open from China west, grow tall, put down high, Tai Kaisi great isolating switch producer, wherein GW22A-252 (W) III 4000A of Shandong Taikai Disconnecting Switch Co., Ltd.'s production, its disconnecting link is vertical telescopic and horizontal extension two kinds of structures, after combined floodgate puts in place isolating switch up and down/horizontal arm is straight line, connecting lever place becomes 180 degree.Separating brake process, using motor or manpower as power, by the spring transmission in connecting lever, is ordered about underarm on isolating switch and is stretched.Due to this isolating switch at dynamic and static contact place without arc-initiating device, in making process, moving contact scissors mouth center line and the corresponding deviation of fixed contact conducting rod center line are more than 30mm, moving contact of disconnecting link is by dieback fixed contact, cannot realize time serious closing a floodgate, and dynamic and static contact will produce high temperature height thermic arc at the moment, the dynamic and static contact position of coup injury, fever phenomenon can be produced because of loose contact in contact site by force, for device security stable operation hides some dangers for after combined floodgate power transmission.
This kind of isolating switch to be burnt dynamic and static contact phenomenon stopping repeatedly occurring in transmission process arcing, determine that reason is occur deviation in isolating switch making process by analysis, and disconnecting link is without arc-initiating device, fixed contact and the arcing of moving contact feeler are discharged, burn fixed contact, causes larger threat to increase the security risk of electrical network to the integrality of disconnecting link reliability and equipment simultaneously.
Summary of the invention
The object of the application be to propose a kind of at isolating switch in divide-shut brake process, place the 220kV isolating switch arc-initiating device occurring phenomenon of arc discharge between dynamic and static contact.
The object of the application is achieved in that the arc ignition bar that 220kV isolating switch arc-initiating device comprises the conducting rod under the fixed contact being suspended in isolating switch and is arranged on the moving contact of isolating switch, described arc ignition bar is rotatably connected on the underarm place of the moving contact of isolating switch, arc ignition bar is connected with striking wire, striking wire another end is fixedly connected on the upper arm place of the moving contact of isolating switch.
The application's structure is simple; onsite application is convenient; in making process, arc-initiating device first contacts with conducting rod; in separating brake process; conducting rod is finally separated with arc-initiating device; reach the object protecting dynamic and static contact, increase the reliability of switch operation and the integrality of equipment, solve contact and damage the huge workload brought.The application decreases to lift one's head because of sound and damages maintenance number of times, the reliability adding grid switching operation and the efficiency brought, reduces the failure rate of equipment, meets the safety and stability requirement of 220kV equipment under large load condition.
Accompanying drawing illustrates: the concrete structure of the application is provided by following drawings and Examples:
Fig. 1 is 220kV isolating switch arc-initiating device structural representation;
Fig. 2 is 220kV isolating switch arc-initiating device structural representation when isolating switch closes a floodgate the initial stage;
Fig. 3 is 220kV isolating switch arc-initiating device structural representation when isolating switch combined floodgate puts in place.
Legend: 1, fixed contact holder, 2, conducting rod, 3, upper arm, 4, fixed contact, 5, arc ignition bar, 6, rotating shaft, 7, arc ignition bar holder, 8, underarm, 9, moving contact, 10, striking wire.
Embodiment:
The application by the restriction of following embodiment, can not determine concrete execution mode according to the technical scheme of the application and actual conditions.
Embodiment: as Figure 1-3, the arc ignition bar 5 that 220kV isolating switch arc-initiating device comprises the conducting rod 2 under the fixed contact 4 being suspended in isolating switch and is arranged on the moving contact 9 of isolating switch, described arc ignition bar 5 is rotatably connected on underarm 8 place of the moving contact 9 of isolating switch, arc ignition bar 5 is connected with striking wire 10, striking wire 10 another end is fixedly connected on upper arm 3 place of the moving contact 9 of isolating switch.Described fixed contact 4, moving contact 9, and upper and lower arm 3,8 is prior art, the non-the present application point of its concrete structure, therefore be not described in detail at this.
As shown in Figure 2,3, described arc ignition bar 5 is rotatedly connected by rotating shaft 6 and arc ignition bar holder 7, and rotating shaft 6 is provided with torsion spring.Described arc ignition bar holder 7 is fixedly linked at underarm 8 place of the moving contact 9 of isolating switch.
As shown in Figure 1, be fixed with between fixed contact holder 1, two fixed contact holder 1 in fixed contact 4 both sides of isolating switch and be connected with conducting rod 2.Between described conducting rod 2 and fixed contact 4, spacing is not less than 20cm.
Described arc ignition bar holder 7, fixed contact holder 1 are conductor.
In making process, first conducting rod 2 contacts with arc ignition bar 5, and oppresses arc ignition bar 5 and rotate, and now dynamic and static contact 9,4 spacing are enough, there will not be phenomenon of arc discharge.Arc ignition bar 5 is rotated further, until conducting rod 2 contacts with the disconnecting link on moving contact 9, completes combined floodgate.In separating brake process, arc ignition bar 5 upwards rotates under torsion spring effect, all the time contact with conducting rod 2, until arc ignition bar 5 arrives maximum rotation position, conducting rod 2 and arc ignition bar 5 depart from, complete separating brake, now dynamic and static contact 9,4 spacing are enough, and thus avoid occurring phenomenon of arc discharge between dynamic and static contact 9,4.
Above technical characteristic constitutes the most preferred embodiment of the application, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (7)
1. a 220kV isolating switch arc-initiating device, it is characterized in that: the arc ignition bar comprising the conducting rod under the fixed contact being suspended in isolating switch and be arranged on the moving contact of isolating switch, described arc ignition bar is rotatably connected on the underarm place of the moving contact of isolating switch, arc ignition bar is connected with striking wire, striking wire another end is fixedly connected on the upper arm place of the moving contact of isolating switch.
2. 220kV isolating switch arc-initiating device as claimed in claim 1, is characterized in that: described arc ignition bar is rotatedly connected by rotating shaft and arc ignition bar holder, and rotating shaft is provided with torsion spring.
3. 220kV isolating switch arc-initiating device as claimed in claim 2, is characterized in that: described arc ignition bar holder is fixedly linked at the underarm place of the moving contact of isolating switch.
4. 220kV isolating switch arc-initiating device as claimed in claim 2, is characterized in that: described arc ignition bar holder is conductor.
5. 220kV isolating switch arc-initiating device as claimed in claim 1, is characterized in that: be fixed with fixed contact holder in the fixed contact both sides of isolating switch, is connected with conducting rod between two fixed contact holders.
6. 220kV isolating switch arc-initiating device as claimed in claim 4, is characterized in that: between described conducting rod and fixed contact, spacing is not less than 20cm.
7. 220kV isolating switch arc-initiating device as claimed in claim 4, is characterized in that: described fixed contact holder is conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385110.9A CN105161349A (en) | 2015-07-05 | 2015-07-05 | 220kV disconnecting switch arc-striking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385110.9A CN105161349A (en) | 2015-07-05 | 2015-07-05 | 220kV disconnecting switch arc-striking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105161349A true CN105161349A (en) | 2015-12-16 |
Family
ID=54802172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510385110.9A Pending CN105161349A (en) | 2015-07-05 | 2015-07-05 | 220kV disconnecting switch arc-striking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105161349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493035A (en) * | 2018-05-30 | 2018-09-04 | 宁夏京能宁东发电有限责任公司 | Disconnecting switch equipped with arc initiation device |
| CN113611567A (en) * | 2021-08-27 | 2021-11-05 | 湖南长高高压开关集团股份公司 | Arc striking device for single-column double-arm vertical telescopic isolating switch |
-
2015
- 2015-07-05 CN CN201510385110.9A patent/CN105161349A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493035A (en) * | 2018-05-30 | 2018-09-04 | 宁夏京能宁东发电有限责任公司 | Disconnecting switch equipped with arc initiation device |
| CN113611567A (en) * | 2021-08-27 | 2021-11-05 | 湖南长高高压开关集团股份公司 | Arc striking device for single-column double-arm vertical telescopic isolating switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204966369U (en) | Outdoor high voltage isolator of GW1 | |
| CN104361960B (en) | A kind of band can the parallel gap lightning protection device of swing arm electrode | |
| CN102931609B (en) | On-load changes the operational method of 10kV fuse switch | |
| CN209785676U (en) | novel air gap lightning arrester | |
| CN203481707U (en) | Upper pile head drainage wire fixing rod | |
| CN105161349A (en) | 220kV disconnecting switch arc-striking device | |
| CN210325620U (en) | Outdoor high-voltage isolating switch | |
| CN204792590U (en) | 220kV isolator arc initiation device | |
| CN204946753U (en) | A kind of 10kV isolating switch mounting bracket | |
| CN202363191U (en) | 10 kV line lighting arrester | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN204257304U (en) | A kind of glass insulator lightning protection hardware | |
| CN205429386U (en) | Quick connecting device of high altitude construction wire | |
| CN201408615Y (en) | Snow-blowing ice-melting device of electric high tension shackle insulator | |
| CN201075673Y (en) | Overvoltage protector of aerial insulated line | |
| CN104201632A (en) | Adjustable power transmission line windage yaw preventing device | |
| CN105610116A (en) | Protection device having functions of lightning protection, electricity inspection and grounding, and protection method | |
| CN207010168U (en) | A kind of cable for mounting area arrester and overhead line all insulation clutch | |
| CN101887788B (en) | Power high-tension porcelain insulator snow-blowing and deicing device | |
| CN201118170Y (en) | 20kV overhead insulation-line over-voltage protection apparatus | |
| CN203746733U (en) | Improved GW4-10 isolating switch | |
| CN103474906A (en) | Upper pile head drainage wire containing device | |
| CN205452910U (en) | Electrified disappearing of GW7 type plug -in strip lacks specialized tool | |
| CN205104466U (en) | Parallel arrangement's high -tension drop type fuse | |
| CN202142462U (en) | Low-impedance high-pressure disconnector knife brake device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151216 |
|
| WD01 | Invention patent application deemed withdrawn after publication |