CN206877892U - A kind of disconnecting switch - Google Patents
A kind of disconnecting switch Download PDFInfo
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- CN206877892U CN206877892U CN201720594729.5U CN201720594729U CN206877892U CN 206877892 U CN206877892 U CN 206877892U CN 201720594729 U CN201720594729 U CN 201720594729U CN 206877892 U CN206877892 U CN 206877892U
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- movable contact
- contact
- contact spring
- disconnecting link
- disconnecting
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Abstract
The utility model provides a kind of disconnecting switch, including disconnecting link contact arm, static contact and vibration absorbing ring, the static contact is arranged on the lower end of the vibration absorbing ring, the disconnecting link contact arm is provided with movable contact spring, the side of the movable contact spring is arranged on the disconnecting link contact arm, and the opposite side of the movable contact spring is provided with the shiny surface contacted with the static contact.The utility model is contacted by the shiny surface of movable contact spring side with static contact, opposite side is arranged on the inner side of disconnecting link contact arm, both can guarantee that disconnecting link contact arm movable contact spring and static contact contact surface it is good, reduce the heating problem caused by movable contact spring and static contact loose contact, being convenient for changing and installing to movable contact spring can be realized again, the power off time during changing is reduced, improves efficiency and economy, it is simple and practical.When changing the movable contact spring at this interval, the normal power supply at other intervals is not influenceed, ensures the reliability of equipment safety stable operation and down-stream enterprise's productive power.
Description
Technical field
Transformer substation switch device arts are the utility model is related to, more particularly, to a kind of disconnecting switch.
Background technology
Disconnecting switch is a kind of to be mainly used for isolating power supply, grid switching operation, connecting and cut off opening for low current circuit
Device is closed, disconnecting switch is commonly called as " disconnecting link ", generally referred to as high voltage isolator, i.e. rated voltage keeping apart in more than 1kV
Close, often referred to simply as disconnecting switch, be most commonly used a kind of electrical equipment in high-voltage switch electric appliance, the operation principle and knot of itself
Structure is fairly simple, but because usage amount is big, functional reliability requires high, and electric substation, the design of power plant, foundation and safety are transported
Capable influence is larger.
As the important switchgear of power system, its operation conditions directly affects the transmission of electric energy, divided high voltage isolator
Match somebody with somebody and the safe and reliable operation of system.It is active because isolated switchgear often operates, not only needs to consider conduction
Contact, insulation creep distance etc., it is most important that the mechanical performance of disconnecting switch, the whether normal of mechanical performance directly decide isolation
Switch the generation of the typical faults, defect such as division position, wiper resistance, part stress.
Nail (unit of length) figure transformer station's 220KV disconnecting switch (model GW6D-252W) often occurs after being run by certain time
The sagging phenomenon of disconnecting switch vibration absorbing ring, cause to fix in the middle part of movable contact spring producing heating with static contact loose contact at the top of screw,
Have a strong impact on system and equipment safety stable operation.Typically in order to handle the heating problem of disconnecting link, it is necessary to be touched by adjusting sound
Head contact surface, or integral replacing disconnecting switch solve, but have the following disadvantages：
First, when adjusting dynamic/static contact contact surface, not only need to stop being spaced where disconnecting switch, it is also necessary to stop this and keep apart
Close corresponding bus, cause power failure area to expand, the uneasy congruent factor of single bus-bar operation, after adjustment because bus sinks or
The factors such as static contact weakening annular strain are it is also possible to cause fever phenomenon, it is impossible to thoroughly effect a radical cure heating problem.
Second, changing the disconnecting switch of other models, there is also stop corresponding disconnecting switch in addition to it need to increase one-time investment
Bus, cause power failure area expand, the unsafe factor of single bus-bar operation.
3rd, operations staff stop power transmission operation in, it is various due to stopping bus operating procedure, add it is dangerous because
Element, influence the safe operation of equipment and system.
4th, nail (unit of length) figure transformer station belongs to hinge power station, stops to send bus need of work to adjust into Inner Mongol every time and applies in advance,
It is middle to adjust examination ＆ approval step difficult.
Utility model content
The utility model provides a kind of disconnecting switch for overcoming above mentioned problem or solving the above problems at least in part, should
Device can reduce movable contact spring in running causes frequent heating problem because of loose contact with static contact.
According to the technical solution of the utility model, there is provided a kind of disconnecting switch, it includes disconnecting link contact arm, static contact and weakening
Ring, the static contact are arranged on the lower end of the vibration absorbing ring, and the disconnecting link contact arm is provided with movable contact spring, the side of the movable contact spring
On the disconnecting link contact arm, the opposite side of the movable contact spring is provided with the shiny surface contacted with the static contact.
As the further improvement project of above-mentioned technical proposal, the movable contact spring is arranged on the disconnecting link contact arm by screw rod
On.The movable contact spring is detachably connected on the disconnecting link contact arm by screw rod, described dynamic tactile easily to install or change
Piece.
As the further improvement project of above-mentioned technical proposal, the screw rod is arranged on the middle part of the movable contact spring.Pass through
Make to contact with the static contact in the middle part of the shiny surface of the movable contact spring, to avoid the loose contact between movable contact spring and static contact
Phenomenon.
As the further improvement project of above-mentioned technical proposal, one end of the screw rod is welded on the movable contact spring, institute
The other end for stating screw rod is detachably connected by helicitic texture and the disconnecting link contact arm.
As the further improvement project of above-mentioned technical proposal, the weld of the screw rod and the movable contact spring is provided with connection
Part.By setting the connector in one end of the screw rod, it may be such that the welding of the screw rod and the movable contact spring is more firm
It is Gu reliable.
As the further improvement project of above-mentioned technical proposal, the connector is the sheet song for bending towards the screw rod side
Face piece, connector position corresponding with the screw rod end are provided with bellmouth.By in the bellmouth of the connector
Fill welding medium, may be such that welded between screw rod and movable contact spring it is more solid and reliable.Specifically, the cone angle of the bellmouth can
90 degree are arranged to, the size close to the movable contact spring side is more than the size of opposite side.
As the further improvement project of above-mentioned technical proposal, length direction of the movable contact spring along the disconnecting link contact arm is set
Put, the both ends of the movable contact spring are arranged on the disconnecting link contact arm by screw assembly respectively.The movable contact spring passes through middle part
Screw rod and the screw assembly at both ends are connected with the disconnecting link contact arm so that installation and replacement operation are convenient and swift, while ensure two
Person's is reliably connected.
As the further improvement project of above-mentioned technical proposal, the both sides of the static contact are respectively equipped with the disconnecting link and touched
Arm, the movable contact spring contacted with the static contact is respectively equipped with the inside of two disconnecting link contact arms.
As the further improvement project of above-mentioned technical proposal, two disconnecting link contact arms are set in scissor-shaped, pass through control
The opening and closing movement of two disconnecting link contact arms of mechanism controls processed.
As the further improvement project of above-mentioned technical proposal, the static contact is in shaft-like, the both ends point of the static contact
Lower end not with the vibration absorbing ring is connected, and the middle part of the static contact contacts with the movable contact spring.
Based on above-mentioned technical proposal, the utility model proposes disconnecting switch, including the movable contact spring on disconnecting link contact arm
With the static contact positioned at vibration absorbing ring lower end, contacted by the shiny surface of movable contact spring side with static contact, opposite side is arranged on disconnecting link
The inner side of contact arm, both can guarantee that disconnecting link contact arm movable contact spring and static contact contact surface it is good, reduce because of movable contact spring and static contact
Heating problem caused by loose contact, being convenient for changing and installing to movable contact spring can be realized again, reduce the power failure during changing
Time, efficiency and economy are improved, simple and practical, ensure equipment safety stable operation and down-stream enterprise's productive power can
By property.
Meanwhile disconnecting switch of the present utility model also has the characteristics that：When changing movable contact spring or static contact, it is not necessary to
Stop the bus corresponding to the disconnecting switch, ensure system safety and stability；When changing the movable contact spring at this interval, other are not influenceed
Every normal power supply；Monospace only need to be stopped so that power failure operation is simple, simplifies operating procedure, reduces maloperation generation
Probability；And stop monospace, examination ＆ approval step is adjusted in simplifying, power off time is reduced, improves economy.
Brief description of the drawings
Fig. 1 is the partial structural diagram according to the disconnecting switch of the utility model embodiment；
Fig. 2 is the left view according to Fig. 1 of the utility model embodiment；
Fig. 3 is the schematic diagram according to the movable contact spring of the utility model embodiment；
Fig. 4 is the schematic diagram according to the screw rod of the utility model embodiment；
Fig. 5 is the partial enlarged drawing according to Fig. 4 of the utility model embodiment.
In figure, 1. vibration absorbing rings, 2. movable contact springs, 3. disconnecting link contact arms, 4. static contacts, 5. screw rods, 6. connectors.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example and its between be combined, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belong to the scope of the utility model protection.
In one embodiment according to the application, with reference to figure 1 and Fig. 2, there is provided a kind of disconnecting switch, it includes disconnecting link and touched
Arm 3, static contact 4 and vibration absorbing ring 1, the static contact 4 are arranged on the lower end of the vibration absorbing ring 1, and the disconnecting link contact arm 3 is provided with dynamic
Contact 2, the side of the movable contact spring 2 are arranged on the disconnecting link contact arm 3, the opposite side of the movable contact spring 2 be provided with it is described quiet
The shiny surface that contact 4 contacts.
The disconnecting switch of the utility model embodiment, including movable contact spring 2 on disconnecting link contact arm 3 and under vibration absorbing ring
The static contact 4 at end, contacted by the shiny surface of the side of movable contact spring 2 with static contact 4, opposite side is arranged on disconnecting link contact arm 3, can
Ensure that the contact surface of the movable contact spring 2 and static contact 4 of disconnecting link contact arm 3 is good, reduce because of movable contact spring 2 and the loose contact of static contact 4 and
Caused heating problem, being convenient for changing and installing to movable contact spring 2 can be realized again, reduce the power off time during changing, improve
Efficiency and economy, it is simple and practical.
In one embodiment according to the application, the movable contact spring 2 is arranged on the disconnecting link contact arm 3 by screw rod 5.
The movable contact spring 2 is detachably connected on the disconnecting link contact arm 3 by screw rod 5, easily can be installed or be changed and be described dynamic
Contact 2.
In one embodiment according to the application, with reference to figure 3, the screw rod 5 is arranged on the middle part of the movable contact spring 2.
Contacted in the middle part of shiny surface by making the movable contact spring 2 with the static contact 4, to avoid connecing between movable contact spring 2 and static contact 4
Touch bad phenomenon.
In one embodiment according to the application, one end of the screw rod 5 is welded on the movable contact spring 2, the spiral shell
The other end of bar 5 is detachably connected by helicitic texture and the disconnecting link contact arm 3.
In one embodiment according to the application, with reference to figure 4, the weld of the screw rod 5 and the movable contact spring 2 is provided with
Connector 6.By setting the connector 6 in one end of the screw rod 5, the weldering of the screw rod 5 and the movable contact spring 2 may be such that
Connect more solid and reliable.
In one embodiment according to the application, with reference to figure 5, the connector 6 is the piece for bending towards the side of screw rod 5
Shape curved-surface piece, the connector 6 position corresponding with the end of screw rod 5 are provided with bellmouth.Pass through the cone in the connector 6
In shape hole fill welding medium, may be such that welded between screw rod 5 and movable contact spring 2 it is more solid and reliable.Specifically, the bellmouth
Cone angle may be configured as 90 degree, close to the side of movable contact spring 2 size be more than its opposite side size.
In one embodiment according to the application, length direction of the movable contact spring 2 along the disconnecting link contact arm 3 is set,
The both ends of the movable contact spring 2 are arranged on the disconnecting link contact arm 3 by screw assembly respectively.The movable contact spring 2 passes through middle part
Screw rod 5 and the screw assembly at both ends are connected with the disconnecting link contact arm 3 so that installation and replacement operation are convenient and swift, ensure simultaneously
Both is reliably connected.
In one embodiment according to the application, the both sides of the static contact 4 are respectively equipped with the disconnecting link contact arm 3, and two
The inner side of the individual disconnecting link contact arm 3 is respectively equipped with the movable contact spring 2 contacted with the static contact 4.
In one embodiment according to the application, two disconnecting link contact arms 3 are set in scissor-shaped, pass through controlling organization
Control the opening and closing movement of two disconnecting link contact arms 3.
In one embodiment according to the application, the static contact 4 in shaft-like, the both ends of the static contact 4 respectively with
The lower end connection of the vibration absorbing ring, the middle part of the static contact 4 contacts with the movable contact spring 2.
As the specific embodiment of the application, to the 220KV disconnecting switch of nail (unit of length) figure transformer station GW6D-252W models
Progressively transformed, use the specification of disconnecting switch movable contact spring for：4mm*60mm*600mm (the thick wide * length of *), anaerobic T2 red coppers,
All silver-plated 12 microns of surface, screw rod is connected with movable contact spring back fixation by macromolecule welding manner.
Improved disconnecting switch, existing disconnecting switch can be effectively eliminated because caused by movable contact spring and static contact loose contact
Fever phenomenon, the reliability of the transformer station 220KV equipment safeties stable operation of nail (unit of length) figure and down-stream enterprise's productive power is ensured.
Disconnecting switch of the present utility model also has the characteristics that：When changing movable contact spring or static contact, it is not necessary to stop this
Bus corresponding to disconnecting switch, ensure system safety and stability；When changing the movable contact spring at this interval, other intervals are not influenceed
Normal power supply；Monospace only need to be stopped so that power failure operation is simple, simplifies operating procedure, reduces the probability of maloperation generation,
And reduce difficulty of construction；And stop monospace, examination ＆ approval step is adjusted in simplifying, power off time is reduced, improves economy, with
And construction and electrical safety.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (10)
1. a kind of disconnecting switch, it is characterised in that including disconnecting link contact arm, static contact and vibration absorbing ring, the static contact is arranged on institute
The lower end of vibration absorbing ring is stated, the disconnecting link contact arm is provided with movable contact spring, and the side of the movable contact spring is arranged on the disconnecting link contact arm,
The opposite side of the movable contact spring is provided with the shiny surface contacted with the static contact.
2. a kind of disconnecting switch according to claim 1, it is characterised in that the movable contact spring is arranged on described by screw rod
On disconnecting link contact arm.
3. a kind of disconnecting switch according to claim 2, it is characterised in that the screw rod is arranged in the movable contact spring
Portion.
4. a kind of disconnecting switch according to claim 2, it is characterised in that one end of the screw rod is welded on described dynamic tactile
On piece, the other end of the screw rod is detachably connected by helicitic texture and the disconnecting link contact arm.
A kind of 5. disconnecting switch according to claim 4, it is characterised in that the weld of the screw rod and the movable contact spring
Provided with connector.
6. a kind of disconnecting switch according to claim 5, it is characterised in that the connector is to bend towards the screw rod side
Sheet curved-surface piece, connector position corresponding with the screw rod end is provided with bellmouth.
A kind of 7. disconnecting switch according to claim 2, it is characterised in that length of the movable contact spring along the disconnecting link contact arm
Spend direction to set, the both ends of the movable contact spring are arranged on the disconnecting link contact arm by screw assembly respectively.
8. a kind of disconnecting switch according to claim 1, it is characterised in that the both sides of the static contact are respectively equipped with described
Disconnecting link contact arm, the movable contact spring contacted with the static contact is respectively equipped with the inside of two disconnecting link contact arms.
9. a kind of disconnecting switch according to claim 8, it is characterised in that two disconnecting link contact arms are set in scissor-shaped
Put, the opening and closing movement of two disconnecting link contact arms is controlled by controlling organization.
10. a kind of disconnecting switch according to claim 1, it is characterised in that the static contact is in shaft-like, the static contact
Lower end of the both ends respectively with the vibration absorbing ring be connected, the middle part of the static contact contacts with the movable contact spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594729.5U CN206877892U (en) | 2017-05-25 | 2017-05-25 | A kind of disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594729.5U CN206877892U (en) | 2017-05-25 | 2017-05-25 | A kind of disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206877892U true CN206877892U (en) | 2018-01-12 |
Family
ID=61336828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594729.5U Active CN206877892U (en) | 2017-05-25 | 2017-05-25 | A kind of disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206877892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
-
2017
- 2017-05-25 CN CN201720594729.5U patent/CN206877892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
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