CN108493035A - Disconnecting switch equipped with arc initiation device - Google Patents
Disconnecting switch equipped with arc initiation device Download PDFInfo
- Publication number
- CN108493035A CN108493035A CN201810535920.1A CN201810535920A CN108493035A CN 108493035 A CN108493035 A CN 108493035A CN 201810535920 A CN201810535920 A CN 201810535920A CN 108493035 A CN108493035 A CN 108493035A
- Authority
- CN
- China
- Prior art keywords
- arc
- contact
- striking
- disconnecting switch
- moving contact
- 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
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 31
- 230000003068 static effect Effects 0.000 claims abstract description 58
- 238000010891 electric arc Methods 0.000 claims abstract description 24
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- 238000002679 ablation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method 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
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention is a kind of disconnecting switch equipped with arc initiation device, including the moving contact and static contact that can be fastened relatively, the free end of the moving contact is equipped with the moving contact arc-striking structure being extended to the static contact direction, the free end of the static contact is equipped with the static contact arc-striking structure being extended to the moving contact direction, the moving contact arc-striking structure can generate electric arc and release electric arc prior to moving contact and static contact conductive contact, the moving contact arc-striking structure with the static contact arc-striking structure with the static contact arc-striking structure conductive contact.The disconnecting switch equipped with arc initiation device eliminates damage of the electric arc to the contact of disconnecting switch by installing arc initiation device additional, extends the service life of contact, ensures the operation that high voltage distribution installation long-term safety is stablized.
Description
Technical field
The present invention relates to high voltage power distribution technical field more particularly to a kind of disconnecting switch equipped with arc initiation device.
Background technology
Disconnecting switch is substation, a kind of defeated, important equipment for being used in combination with breaker in distribution line, main to use
Way is the safety for ensureing high-tension apparatus service work, is needing between the part overhauled and other live parts, is using disconnecting switch
Constitute it is sufficiently large be evident that air insulation interval, form apparent cut-off point；Disconnecting switch does not have arc-control device, if
The disconnecting switch operation under on-load state can cause larger phenomenon of arc discharge since the opening and closing speed of dynamic and static contact is relatively slow,
Make ablation at contact, so cannot be used for disconnecting load current and short circuit current, otherwise can form electric arc between contact, it will
Disconnecting switch can be damaged.
Disconnecting switch can be divided into two kinds according to mounting means：One is bareing, disconnecting switch be mounted directly outside, with
Air is in contact.Advantage is that low engineering cost, technology maturation reliable, daily maintenance and emergency repair are very convenient, the disadvantage is that accounting for
Ground area is big, there are certain requirements to environment pollution degree.Another kind is totally enclosed type, disconnecting switch and breaker, earthing switch, mutually
Sensor, arrester, busbar etc. are all enclosed in the shell of metallic ground together, and the SF6 filled with certain pressure is exhausted inside it
Edge gas is sulfur hexafluoride gas-insulating and fully-enclosed power distribution equipment, abbreviation GIS.Advantage is compact-sized, floor space is small, fortune
Row reliability is high, maintenance workload is few, the time between overhauls(TBO) is long；The disadvantage is that project cost is high, service work is complicated, the repair time compared with
It is long.
For the disconnecting switch of gas-insulating and fully-enclosed formula installation, it is helped to go out by the sulfur hexafluoride gas in shell
Arc is effectively reduced damage of the electric arc to contact.But it, can be with currently without the relevant technologies for the disconnecting switch of bareing installation
Reduce damage of the electric arc to contact.Such as SPO2T-800/4000 type disconnecting switch is first way, outside is mounted on, with sky
Gas is in direct contact, rated operational voltage 750kV.Because voltage class is high, overhead transmission line is longer, generated in circuit larger electric over the ground
Capacitance current, SPO2T-800/4000 types disconnecting switch is in the unloaded state during breaking-closing operating, dynamic and static Contact Breaking/Making Operations lock away from
When from 1 meter or so, start to generate larger electric arc.The high temperature that electric arc generates causes to damage to the dynamic and static contact conducting position of disconnecting switch
Wound, long-play causes contact resistance to increase, contact generates heat, and the accident that static contact is burned out twice, serious shadow once occurred
Ring the safe operation of equipment.Isolation switch contact is damaged in order to achieve the purpose that eliminate electric arc, it can be by existing disconnecting switch
And its it is replaced with sulfur hexafluoride gas-insulating and fully-enclosed power distribution equipment after all power distribution equipments dismountings, if will be faced by replacing by two kinds
It is difficult：One, the dismounting of existing power distribution equipment, the buying of new power distribution equipment and the required expense of installation will be very high；Two, this
The duration of need of work construction will be grown very much, and generating set is needed to stop operation.Based on above two reason, so will not
It is considered as replacing the method for disconnecting switch to achieve the purpose that eliminate electric arc to isolation switch contact damage.
The present inventor relies on as a result, is engaged in experience and the practice of relevant industries for many years, proposes a kind of equipped with arc initiation device
Disconnecting switch, to overcome the deficiencies of existing technologies.
Invention content
The purpose of the present invention is to provide a kind of disconnecting switch equipped with arc initiation device, overcome electricity existing in the prior art
The problem of arc damage contact, safety difference, is somebody's turn to do the disconnecting switch equipped with arc initiation device by installing arc initiation device additional to eliminate electric arc
Damage to the contact of disconnecting switch extends the service life of contact, ensures the operation that high voltage distribution installation long-term safety is stablized.
The object of the present invention is achieved like this, a kind of disconnecting switch equipped with arc initiation device, including opposite can fasten
Moving contact and static contact, the free end of the moving contact are equipped with the moving contact striking knot being extended to the static contact direction
Structure, the free end of the static contact are equipped with the static contact arc-striking structure being extended to the moving contact direction, the moving contact
Arc-striking structure can be prior to moving contact and static contact conductive contact, the moving contact arc-striking structure energy with the static contact arc-striking structure
Electric arc and release electric arc are generated with the static contact arc-striking structure conductive contact.
In the better embodiment of the present invention, the moving contact arc-striking structure includes the first striking contact, and described the
One striking contact is fixedly connected on the side of the moving contact by the first arc ignition bar, outside the free end of the first striking contact
It is convex to be arranged in the free end of the moving contact；The static contact arc-striking structure includes the second striking contact, and second striking is touched
Head is fixedly connected on the side of the static contact by the second arc ignition bar, and the free end of the second striking contact externally protrudes out in described
The free end of static contact is arranged.
In the better embodiment of the present invention, the moving contact arc-striking structure further includes connecting pole, and described first draws
Arc bar is fixedly connected on the connecting pole, and the connecting pole is fixedly connected on by fixing clasp on movable contact conducting bar.
In the better embodiment of the present invention, first connecting hole of the connecting pole equipped with perforation, described first
One end of arc ignition bar is worn by being fixed on the connecting pole by the first attaching nut after first connecting hole.
In the better embodiment of the present invention, side setting of the connecting pole far from the fixing clasp is pressed
Disk.
In the better embodiment of the present invention, pressure is fixedly installed close to the side of the connecting pole in the equal platen
Plate, the pressing plate are bolted by connection in the fixing clasp.
In the better embodiment of the present invention, the static contact arc-striking structure further includes fixed seat, and described second draws
Arc bar is fixedly connected in the fixed seat, and the side of the fixed seat is fixedly connected on static contact pedestal.
In the better embodiment of the present invention, second connecting hole of the fixed seat equipped with perforation, described second
One end of arc ignition bar is worn by being fixed in the fixed seat by the second attaching nut after second connecting hole.
From the above mentioned, the disconnecting switch provided by the invention equipped with arc initiation device has the advantages that：
In the disconnecting switch equipped with arc initiation device of the present invention, by installing arc initiation device additional, electric arc is eliminated to keeping apart
The damage for closing contact (moving contact and static contact), extends the service life of contact, reduces the maintenance generated because contact damages
Expense avoids the feeder line fault caused because contact damages, improves the safety and reliability of generating set operation.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For the schematic diagram of the disconnecting switch equipped with arc initiation device of the present invention.
In figure：
100, the disconnecting switch equipped with arc initiation device；
1, moving contact arc-striking structure；
11, the first striking contact；
12, the first arc ignition bar；
13, connecting pole；
14, fixing clasp；
15, equal platen；151, pressing plate；
2, static contact arc-striking structure；
21, the second striking contact；
22, the second arc ignition bar；
23, fixed seat；
91, moving contact；911, movable contact conducting bar；
92, static contact；921, static contact pedestal.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific implementation mode.
As shown in Figure 1, the present invention provides a kind of disconnecting switch 100 equipped with arc initiation device, including opposite can fasten dynamic
Contact 91 and static contact 92, the free end (one end fastened with static contact 92) of moving contact 91, which is equipped with to extend to static contact direction, to be set
The moving contact arc-striking structure 1 set, the free end (one end fastened with moving contact 91) of static contact 92, which is equipped with to moving contact direction, prolongs
The static contact arc-striking structure 2 of setting is stretched, moving contact arc-striking structure 1 can be prior to moving contact 91 and stationary contact with static contact arc-striking structure 2
First 92 conductive contact, moving contact arc-striking structure 1 can generate electric arc with 2 conductive contact of static contact arc-striking structure and can discharge electric arc,
To achieve the purpose that the moving contact 91 and static contact 92 of protective separation switch.
In the disconnecting switch 100 equipped with arc initiation device of the present invention, by installing arc initiation device additional, electric arc is eliminated to isolation
The damage of switch contact (moving contact and static contact), extends the service life of contact, reduces the dimension generated because contact damages
Shield expense avoids the feeder line fault caused because contact damages, improves the safety of generating set operation and reliable
Property.
Further, as shown in Figure 1, moving contact arc-striking structure 1 includes the first striking contact 11, the first striking contact 11 passes through
First arc ignition bar 12 is fixedly connected on the side of moving contact 91, in the specific embodiment of the present invention, the first striking contact 11
It is threadingly attached on the first arc ignition bar 12；The free end that the free end of first striking contact 11 externally protrudes out in moving contact 91 is set
It sets, i.e. moving contact arc-striking structure 1 is longer than moving contact 91；Static contact arc-striking structure 2 includes the second striking contact 21, and the second striking is touched
First 21 are fixedly connected on the side of static contact 92 by the second arc ignition bar 22, and in the specific embodiment of the present invention, second draws
Arcing contact 21 is threadingly attached on the second arc ignition bar 22；The free end of second striking contact 21 externally protrudes out in oneself of static contact 92
It is arranged by end, i.e. static contact arc-striking structure 2 is longer than static contact 92.During switching on and off, it is of the invention be equipped with arc initiation device every
It leaves in pass 100, before 92 conductive contact of moving contact 91 and static contact, the first striking contact 11 and the second striking contact 21 are first
Realize that (the first striking contact 11 and the second striking contact 21 reach prior to moving contact 91 and static contact 92 and generate electric arc conductive contact
Position), electric arc is generated between the first striking contact 11 and the second striking contact 21 and can discharge electric arc, is touched to which protection is dynamic
First 91 and static contact 92, extend the service life of contact.
Further, as shown in Figure 1, moving contact arc-striking structure 1 further includes connecting pole 13, the first arc ignition bar 12 is fixedly connected on
On connecting pole 13, connecting pole 13 is fixedly connected on by fixing clasp 14 on movable contact conducting bar 911 (prior art).In this hair
In a bright specific embodiment, fixing clasp 14 is sheathed on movable contact conducting bar 911, and is fixed by tight fixed bolt.
Further, as shown in Figure 1, connecting pole 13 is equipped with the first connecting hole of perforation, one end of the first arc ignition bar 12 is worn
If by being fixed on connecting pole 13 by the first attaching nut after the first connecting hole.
Further, as shown in Figure 1, equal platen 15 is arranged in side of the connecting pole 13 far from fixing clasp 14.In this embodiment party
In formula, pressing plate 151 is fixedly installed close to the side of connecting pole 13 in equal platen 15, and pressing plate 151 is bolted by connection in fixation
On snap ring 14, in the present embodiment, connection bolt is long bolt, and quantity is 2.Because the moving contact side of disconnecting switch is not equal
Pressure device easy tos produce point discharge phenomenon after installing moving contact arc-striking structure 1 additional, is installed additional in 1 side of moving contact arc-striking structure equal
Platen 15, can uniform voltage of electric field herein.
Further, as shown in Figure 1, static contact arc-striking structure 2 further includes fixed seat 23, the second arc ignition bar 22 is fixedly connected on
In fixed seat 23, the side of fixed seat 23 is fixedly connected on static contact pedestal 921 (prior art).
Further, as shown in Figure 1, fixed seat 23 is equipped with the second connecting hole of perforation, one end of the second arc ignition bar 22 is worn
If by being fixed in fixed seat 23 by the second attaching nut after the second connecting hole.
From the above mentioned, the disconnecting switch provided by the invention equipped with arc initiation device has the advantages that：
In the disconnecting switch 100 equipped with arc initiation device of the present invention, by installing arc initiation device additional, electric arc is eliminated to isolation
The damage of switch contact (moving contact and static contact), extends the service life of contact, reduces the dimension generated because contact damages
Shield expense avoids the feeder line fault caused because contact damages, improves the safety of generating set operation and reliable
Property.
The foregoing is merely the schematical specific implementation modes of the present invention, are not limited to the scope of the present invention.It is any
Those skilled in the art, made equivalent variations and modification under the premise of not departing from design and the principle of the present invention,
The scope of protection of the invention should be belonged to.
Claims (8)
1. a kind of disconnecting switch equipped with arc initiation device, including can be with respect to the moving contact and static contact fastened, which is characterized in that institute
The free end for stating moving contact is equipped with the moving contact arc-striking structure being extended to the static contact direction, the freedom of the static contact
End is equipped with the static contact arc-striking structure being extended to the moving contact direction, the moving contact arc-striking structure and the static contact
Arc-striking structure can be with the static contact arc-striking structure prior to moving contact and static contact conductive contact, the moving contact arc-striking structure
Conductive contact generates electric arc and release electric arc.
2. being equipped with the disconnecting switch of arc initiation device as described in claim 1, which is characterized in that the moving contact arc-striking structure packet
The first striking contact is included, the first striking contact is fixedly connected on the side of the moving contact by the first arc ignition bar, described
The free end of first striking contact externally protrudes out in the free end setting of the moving contact；The static contact arc-striking structure draws including second
Arcing contact, the second striking contact are fixedly connected on the side of the static contact, second striking by the second arc ignition bar
The free end of contact externally protrudes out in the free end setting of the static contact.
3. being equipped with the disconnecting switch of arc initiation device as claimed in claim 2, which is characterized in that the moving contact arc-striking structure is also
Including connecting pole, first arc ignition bar is fixedly connected on the connecting pole, and the connecting pole is fixed by fixing clasp to be connected
It is connected on movable contact conducting bar.
4. being equipped with the disconnecting switch of arc initiation device as claimed in claim 3, which is characterized in that the connecting pole is equipped with perforation
The first connecting hole, one end of first arc ignition bar is worn by being fixed by the first attaching nut after first connecting hole
In on the connecting pole.
5. being equipped with the disconnecting switch of arc initiation device as claimed in claim 3, which is characterized in that the connecting pole is far from described solid
Equal platen is arranged in the side for determining snap ring.
6. being equipped with the disconnecting switch of arc initiation device as claimed in claim 5, which is characterized in that the equal platen is close to the company
The side fixed setting pressing plate of column is connect, the pressing plate is bolted by connection in the fixing clasp.
7. being equipped with the disconnecting switch of arc initiation device as claimed in claim 2, which is characterized in that the static contact arc-striking structure is also
Including fixed seat, second arc ignition bar is fixedly connected in the fixed seat, and the side of the fixed seat is fixedly connected on quiet
In contact base.
8. being equipped with the disconnecting switch of arc initiation device as claimed in claim 7, which is characterized in that the fixed seat is equipped with perforation
The second connecting hole, one end of second arc ignition bar is worn by being fixed by the second attaching nut after second connecting hole
In in the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810535920.1A CN108493035A (en) | 2018-05-30 | 2018-05-30 | Disconnecting switch equipped with arc initiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810535920.1A CN108493035A (en) | 2018-05-30 | 2018-05-30 | Disconnecting switch equipped with arc initiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108493035A true CN108493035A (en) | 2018-09-04 |
Family
ID=63352377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810535920.1A Pending CN108493035A (en) | 2018-05-30 | 2018-05-30 | Disconnecting switch equipped with arc initiation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493035A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003858A (en) * | 2018-09-29 | 2018-12-14 | 湖南长高高压开关有限公司 | High voltage isolator Rapid arc breaking device and its method of operating in on/off switch |
| CN110112027A (en) * | 2019-05-10 | 2019-08-09 | 湖南长高高压开关集团股份公司 | A kind of disconnecting switch arc current closes auxiliary device |
| CN110335783A (en) * | 2019-07-22 | 2019-10-15 | 浙江天继电气有限公司 | An arcing contact for a DC contactor |
| CN111755281A (en) * | 2020-06-22 | 2020-10-09 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Isolating switch |
| CN111799125A (en) * | 2020-06-22 | 2020-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for prolonging electric service life of isolating switch |
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| CN201294194Y (en) * | 2008-10-23 | 2009-08-19 | 河南森源电气股份有限公司 | Arc initiating device of high voltage isolating switch |
| CN202076181U (en) * | 2011-04-26 | 2011-12-14 | 平高集团有限公司 | Isolating switch with arc striking device |
| CN202352577U (en) * | 2011-12-02 | 2012-07-25 | 深圳市奇辉电气有限公司 | Novel load switch arcing contact and fixed contact thereof |
| EP2838098A1 (en) * | 2013-08-15 | 2015-02-18 | Siemens Aktiengesellschaft | Isolating switch |
| CN105161349A (en) * | 2015-07-05 | 2015-12-16 | 国家电网公司 | 220kV disconnecting switch arc-striking device |
| CN105225883A (en) * | 2014-06-26 | 2016-01-06 | 西门子公司 | Sub-component and earthed switch thereof are touched in quiet striking |
| CN205789660U (en) * | 2016-06-30 | 2016-12-07 | 中国西电电气股份有限公司 | A kind of 800kV double pillar horizontal telescopic high-voltage alternating current isolating switch |
| CN208189469U (en) * | 2018-05-30 | 2018-12-04 | 宁夏京能宁东发电有限责任公司 | Disconnecting switch equipped with arc initiation device |
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2018
- 2018-05-30 CN CN201810535920.1A patent/CN108493035A/en active Pending
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| CN201294194Y (en) * | 2008-10-23 | 2009-08-19 | 河南森源电气股份有限公司 | Arc initiating device of high voltage isolating switch |
| CN202076181U (en) * | 2011-04-26 | 2011-12-14 | 平高集团有限公司 | Isolating switch with arc striking device |
| CN202352577U (en) * | 2011-12-02 | 2012-07-25 | 深圳市奇辉电气有限公司 | Novel load switch arcing contact and fixed contact thereof |
| EP2838098A1 (en) * | 2013-08-15 | 2015-02-18 | Siemens Aktiengesellschaft | Isolating switch |
| CN105225883A (en) * | 2014-06-26 | 2016-01-06 | 西门子公司 | Sub-component and earthed switch thereof are touched in quiet striking |
| CN105161349A (en) * | 2015-07-05 | 2015-12-16 | 国家电网公司 | 220kV disconnecting switch arc-striking device |
| CN205789660U (en) * | 2016-06-30 | 2016-12-07 | 中国西电电气股份有限公司 | A kind of 800kV double pillar horizontal telescopic high-voltage alternating current isolating switch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003858A (en) * | 2018-09-29 | 2018-12-14 | 湖南长高高压开关有限公司 | High voltage isolator Rapid arc breaking device and its method of operating in on/off switch |
| CN109003858B (en) * | 2018-09-29 | 2023-11-07 | 湖南长高高压开关有限公司 | Quick arc breaking device of high-voltage isolating switch and action method of quick arc breaking device during switching-on and switching-off |
| CN110112027A (en) * | 2019-05-10 | 2019-08-09 | 湖南长高高压开关集团股份公司 | A kind of disconnecting switch arc current closes auxiliary device |
| CN110335783A (en) * | 2019-07-22 | 2019-10-15 | 浙江天继电气有限公司 | An arcing contact for a DC contactor |
| CN111755281A (en) * | 2020-06-22 | 2020-10-09 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Isolating switch |
| CN111799125A (en) * | 2020-06-22 | 2020-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for prolonging electric service life of isolating switch |
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