CN208848811U - High voltage isolator Rapid arc breaking device - Google Patents
High voltage isolator Rapid arc breaking device Download PDFInfo
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- CN208848811U CN208848811U CN201821600730.5U CN201821600730U CN208848811U CN 208848811 U CN208848811 U CN 208848811U CN 201821600730 U CN201821600730 U CN 201821600730U CN 208848811 U CN208848811 U CN 208848811U
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- arcing contact
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- 238000010586 diagram Methods 0.000 description 7
- 238000002679 ablation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
High voltage isolator Rapid arc breaking device, including quiet layback arc device (2) and dynamic layback arc device (3), the quiet layback arc device (2) is installed on the front side on quiet side mounting bracket (1) and being located at main static contact (5), and the dynamic layback arc device (3) is installed in operator moving contact (4).The high voltage isolator Rapid arc breaking device has many advantages, such as structure novel, function admirable, low in cost, easy for installation.
Description
Technical field
The utility model relates generally to high-voltage switch gear technical field, and in particular to a kind of high voltage isolator Rapid arc breaking dress
It sets.
Background technique
High voltage isolator typically is provided with during the separating brake of no-load current and cut-offs 1-2A under specified fracture voltage
Low current ability, using hard draw arc can normal separating brake current interruption, not will lead to contact burning；And for bus switching current
Operating condition, fracture voltage are generally within 400V, and switching current then reaches 1600A.For such operating condition, disconnecting switch then uses resistance to
The high temperature alloy of arc erosion makes it finally be detached from disconnection as auxiliary contact, since voltage is very low, although electric current is very big,
Arc duration is very short, therefore can normally be cut-off using opening velocity identical with isolation switch contact separating rate.With straight
The raising of power transmission engineering voltage class is flowed, its effect is positioned at the high-voltage direct current isolation switch of DC converter station filter high-voltage end
Filter group is connected into investment DC power transmission line and DC power transmission line is exited in disconnection, due to its special operation condition, interrupting process
For middle fracture voltage class up to 60-80kV, current class also reaches 200-300A, in the past using disconnecting switch add auxiliary contact with
The mode that the synchronous separating brake of main contact is finally detached from current interruption is difficult to meet working condition requirement, since voltage is too high between port, causes arc electric
Stream ablation overlong time in isolation switch contact at a slow speed separation process, or even can be ablated on the main contact other than arcing contact,
It causes main contact scaling loss or auxiliary contact ablation excessively serious, causes to fail.
Electric arc is the free gas of high temperature high conductivity, how to make to generate the distance between two components of electric arc in separating brake
It quicklys increase, reduces the density of free gas, extinguish electric arc quickly, accelerate arc extinguishing, be current problem to be solved.
Utility model content
In order to overcome above isolation switch contact ablation overlong time in separation process at a slow speed, ablation seriously leads to failure
Problem, the utility model provide a kind of high voltage isolator Rapid arc breaking device, current interruption effect simple, at low cost with structure
The advantages that fruit is good.
The technical solution adopted in the utility model is:
High voltage isolator Rapid arc breaking device, including quiet layback arc device and dynamic layback arc device, the quiet layback arc
Device is installed in quiet side mounting bracket and is located at side in front of main static contact, and the dynamic layback arc device is installed on the dynamic touching of operator
On head.
The quiet layback arc device includes quiet arc bracket, swing link bracket, quiet side drainage thread, left reduction torsion spring, right reset torsion
Spring, torsional spring fixed pin, quiet arcing bar, buffer spring device, quiet arcing bar shaft；The quiet arcing bar passes through quiet arcing bar shaft
It is installed on swing link bracket, quiet arcing bar can be rotated around quiet arcing bar shaft；The left reduction torsion spring is close to quiet arcing bar
One end and right reduction torsion spring are each attached on the anchor tip of quiet arcing bar lower end close to one end of quiet arcing bar, left reduction torsion spring
One end and right reduction torsion spring far from quiet arcing bar are each attached to the torsion being installed on swing link bracket far from one end of quiet arcing bar
On spring fixed pin；The left reduction torsion spring and right reduction torsion spring apply the pre- torsion of compression buffer spring device to quiet arcing bar
Square is held against quiet arcing bar on buffer spring device, and buffer spring device is installed on quiet arc bracket, quiet arc bracket with
Swing link bracket is connected；Quiet arcing bar can overcome the pre- torsional moment of left reduction torsion spring, right reduction torsion spring to far from slow under external force
The lateral direction for rushing spring arrangement is swung；The anchor tip of the quiet arcing bar lower end is led by quiet side drainage thread with swing link bracket
Electrical connection.
Further, the quiet arcing bar is made of heat-resisting material, such as Heat-Resisting Stainless Steel Tube 0Cr25Ni20, quiet arcing
The selected of the temperature-resistant material of bar can be determined according to the severe degree of actual condition.
Further, the quiet arcing bar is hollow stem, in favor of mitigating the weight of quiet arcing bar, so that quiet arcing bar returns
Spring-go position is quickly and strong.The rebound of quiet arcing bar is resetted to be driven by left reduction torsion spring, right reduction torsion spring, if the matter of quiet arcing bar
Amount is too very slow and powerless it will cause springing back greatly, and buffer deceleration is also difficult after rebound.
The dynamic layback arc device includes dynamic layback arcing contact, moving arcing contact swing rod, moving arcing contact switch block, moving arcing contact turn
Axis, moving arcing contact reduction torsion spring, moving arcing contact installation anchor ear, moving arcing contact mounting plate, torsional spring fixed plate, moving arcing contact limit
Column, moving arcing contact drainage thread, the dynamic layback arc device are installed anchor ear by moving arcing contact and are installed on operator moving contact；It is described
Dynamic layback arcing contact is fixed on one end of moving arcing contact swing rod, and the other end and moving arcing contact switch block of moving arcing contact swing rod are connected；
The moving arcing contact shaft being mounted on moving arcing contact mounting plate passes through moving arcing contact switch block, moves layback arcing contact, moving arcing contact pendulum
The entirety of bar and moving arcing contact switch block can be rotated around moving arcing contact shaft, and the lower end of the moving arcing contact reduction torsion spring is fixed on
On moving arcing contact switch block, the upper end of moving arcing contact reduction torsion spring is fixed in torsional spring fixed plate, and moving arcing contact limited post is set to dynamic
Arcing contact swing rod side is simultaneously fixed on moving arcing contact mounting plate, and torsional spring fixed plate and moving arcing contact limited post are connected；Dynamic arc touching
Head reduction torsion spring provides torque to moving arcing contact switch block, makes moving arcing contact switch block against moving arcing contact limited post；Dynamic layback arc touching
Head can be swung under external force to the direction far from moving arcing contact limited post；Moving arcing contact switch block by moving arcing contact drainage thread with
Anchor ear is installed to be conductively connected.
The dynamic layback arcing contact is fixed on one end of moving arcing contact swing rod by screw.
The moving arcing contact switch block is equipped with mounting hole, and the other end of moving arcing contact swing rod, which is caught in mounting hole, realizes dynamic arc
Contact swing rod and moving arcing contact switch block are connected.
Method of operating of the high voltage isolator Rapid arc breaking device in on/off switch as previously described, includes the following steps:
When the main static contact of operator moving contact and high voltage isolator is closed a floodgate, operator moving contact is transported toward combined floodgate direction
It is dynamic, after dynamic layback arcing contact touches quiet arcing bar, since quiet arcing bar cannot be toward the conjunction of moving contact by the limitation of buffer spring device
The movement of lock direction, and dynamic layback arcing contact can be rotated around moving arcing contact shaft, therefore touch quiet arcing bar in dynamic layback arcing contact
Afterwards, layback arcing contact is moved to start to swing to the direction far from moving arcing contact limited post to around quiet arcing bar；Layback arc to be moved
After contact bypasses quiet arcing bar, dynamic layback arcing contact realizes reset under the action of moving arcing contact reduction torsion spring；
When the main static contact of operator moving contact and high voltage isolator carries out separating brake, operator moving contact is transported toward separating brake direction
Dynamic, main static contact and operator moving contact disconnect, and after dynamic layback arcing contact touches quiet arcing bar, move layback arcing contact for quiet arcing bar
It hooks and pulls outward, quiet arcing bar is that separating brake direction swings and keeps the conductive connection with dynamic layback arcing contact outward, to make
Winner's static contact will not generate electric arc when separating with operator moving contact between each other；When between operator moving contact and main static contact
When reaching distance tolerance operating condition voltage enough, quiet arcing bar and dynamic layback arcing contact start to be detached from and generate electric arc, quiet arcing bar
The torque of left reduction torsion spring and right reduction torsion spring effect under quickly spring back so that between quiet arcing bar and dynamic layback arcing contact because
The free gas density that electric arc generates reduces, so that the arc current between quiet arcing bar and dynamic layback arcing contact is quickly broken,
Greatly shorten ablation time reduction scaling loss；Quiet arcing bar springs back reset, quiet drawing under the action of left reduction torsion spring, right reduction torsion spring
Fast Collision buffer spring device after the rebound of arc bar resets, the quiet arcing bar fast and stable under the buffer function of buffer spring device
It stops swinging, separating brake current interruption process is completed.
Compared with conventional resistance to burning arcing contact technical solution, utility model has the advantages that
The utility model structure novel, simple, at low cost, current interruption works well, and installation difficulty is low；It is practical new using this
Type accelerates the speed that dynamic layback arcing contact and quiet arcing bar separating brake are detached from, and can quickly cut off the electric arc electricity under certain operating condition
Stream, to reduce the arc erosion time of contact, mitigates the scaling loss of contact, prolongs the service life.
Detailed description of the invention
The general structure schematic diagram of Fig. 1 the utility model high voltage isolator Rapid arc breaking device；
The quiet layback arc apparatus structure schematic diagram of Fig. 2 the utility model；
Fig. 3 the utility model moves layback arc apparatus structure schematic diagram；
Fig. 4 the utility model making process operator moving contact, main static contact move schematic diagram；
Fig. 5 the utility model making process completion status schematic diagram；
Fig. 6 the utility model separating brake process operator moving contact, main static contact move schematic diagram；
Fig. 7 the utility model separating brake process contact is detached from schematic diagram.
Specific embodiment
The utility model is further described below in conjunction with Figure of description and specific embodiment.
High voltage isolator Rapid arc breaking device, including quiet layback arc device 2 and dynamic layback arc device 3, the quiet layback
Arc device 2 is installed on the front side in quiet side mounting bracket 1 and being located at main static contact 5, and the dynamic layback arc device 3 is installed on
It operates on moving contact 4.
The quiet layback arc device 2 is multiple comprising quiet arc bracket 6, swing link bracket 7, quiet side drainage thread 8, left reduction torsion spring 9, the right side
Position torsional spring 10, torsional spring fixed pin 11, quiet arcing bar 12, buffer spring device 13, quiet arcing bar shaft 14；The quiet arcing bar 12
It is installed on swing link bracket 7 by quiet arcing bar shaft 14, quiet arcing bar 12 can be rotated around quiet arcing bar shaft 14；The left side
Reduction torsion spring 9 is each attached to quiet arcing close to one end of quiet arcing bar 12 close to one end of quiet arcing bar 12 and right reduction torsion spring 10
On the anchor tip of 12 lower end of bar, left reduction torsion spring 9 one end and right reduction torsion spring 10 far from quiet arcing bar 12 are far from quiet arcing
One end of bar 12 is each attached on the torsional spring fixed pin 11 being installed on swing link bracket 7；The left reduction torsion spring 9 and right reset are turned round
Spring 10 applies to quiet arcing bar 12 so that the pre- torsional moment that buffer spring device 13 compresses, is held against quiet arcing bar 12 in slow
It rushes on spring arrangement 13, buffer spring device 13 is installed on quiet arc bracket 6, and quiet arc bracket 6 and swing link bracket 7 are connected；Quiet drawing
Arc bar 12 can overcome the pre- torsional moment of left reduction torsion spring 9, right reduction torsion spring 10 to far from buffer spring device 13 under external force
Lateral direction swing；The anchor tip of quiet 12 lower end of arcing bar is conductive even with swing link bracket 7 by quiet side drainage thread 8
It connects.
The quiet arcing bar 12 is made of hollow heat-resisting material, such as Heat-Resisting Stainless Steel Tube 0Cr25Ni20, quiet arcing bar
The selected of 12 temperature-resistant material can be determined according to the severe degree of actual condition.
The quiet arcing bar 12 is hollow stem, in favor of mitigating the weight of quiet arcing bar 12, so that quiet arcing bar 12 returns
Spring-go position is quickly and strong.The rebound reset of quiet arcing bar 12 is driven by left reduction torsion spring 9, right reduction torsion spring 10, if quiet arcing
The quality of bar 12 is too very slow and powerless it will cause springing back greatly, and buffer deceleration is also difficult after rebound.
The dynamic layback arc device 3 includes dynamic layback arcing contact 15, moving arcing contact swing rod 16, moving arcing contact switch block 17, moves
Arcing contact shaft 18, moving arcing contact reduction torsion spring 19, moving arcing contact installation anchor ear 20, moving arcing contact mounting plate 21, torsional spring are fixed
Plate 22, moving arcing contact limited post 23, moving arcing contact drainage thread 24, the dynamic layback arc device 3 install anchor ear by moving arcing contact
20 are installed on operator moving contact 4；The dynamic layback arcing contact 15 is fixed on one end of moving arcing contact swing rod 16, moving arcing contact pendulum
The other end and moving arcing contact switch block 17 of bar 16 are connected；The moving arcing contact shaft 18 being mounted on moving arcing contact mounting plate 21 passes through
Moving arcing contact switch block 17, the entirety for moving layback arcing contact 15, moving arcing contact swing rod 16 and moving arcing contact switch block 17 can be with moving arc
Contact shaft 18 rotates, and the lower end of the moving arcing contact reduction torsion spring 19 is fixed on moving arcing contact switch block 17, and moving arcing contact is multiple
The upper end of position torsional spring 19 is fixed in torsional spring fixed plate 22, and moving arcing contact limited post 23 is set to 16 side of moving arcing contact swing rod and consolidates
Due on moving arcing contact mounting plate 21, torsional spring fixed plate 22 and moving arcing contact limited post 23 are connected；Moving arcing contact reduction torsion spring 19
Torque is provided to moving arcing contact switch block 17, makes moving arcing contact switch block 17 against moving arcing contact limited post 23；Dynamic layback arcing contact 15
It can be swung to the direction far from moving arcing contact limited post 23 under external force；Moving arcing contact switch block 17 passes through moving arcing contact drainage thread
24 are conductively connected with installation anchor ear 20.
The dynamic layback arcing contact 15 is fixed on one end of moving arcing contact swing rod 16 by screw.
The moving arcing contact switch block 17 is equipped with mounting hole, and the other end of moving arcing contact swing rod 16, which is caught in mounting hole, to be realized
Moving arcing contact swing rod 16 and moving arcing contact switch block 17 are connected.
Method of operating of the high voltage isolator Rapid arc breaking device in on/off switch as previously described, includes the following steps:
When the main static contact 5 of operator moving contact 4 and high voltage isolator is closed a floodgate, making process is as shown in Figure 4, Figure 5,
Moving contact 4 of operating is moved toward combined floodgate direction in the direction of the arrow, after dynamic layback arcing contact 15 touches quiet arcing bar 12, due to quiet arcing
Bar 12 cannot be moved by the limitation of buffer spring device 13 toward the combined floodgate direction of moving contact, and dynamic layback arcing contact 15 can the touching of moving arc
Head shaft 18 rotates, therefore after dynamic layback arcing contact 15 touches quiet arcing bar 12, and dynamic layback arcing contact 15 starts to far from dynamic
The direction of arcing contact limited post 23 swings to bypass quiet arcing bar 12；After dynamic layback arcing contact 15 is around quiet arcing bar 12,
Dynamic layback arcing contact 15 realizes reset under the action of moving arcing contact reduction torsion spring 19.
When the main static contact 5 of operator moving contact 4 and high voltage isolator carries out separating brake, separating brake process is as shown in Figure 6, Figure 7,
Moving contact 4 of operating is moved toward separating brake direction in the direction of the arrow, and main static contact 5 is disconnected with operator moving contact 4, moves layback arcing contact 15
After touching quiet arcing bar 12, quiet arcing bar 12 is hooked and is pulled outward by dynamic layback arcing contact 15, and quiet arcing bar 12 is separating brake outward
Direction swings and keeps the conductive connection with dynamic layback arcing contact 15, so that main static contact 5 is being separated with operator moving contact 4
When will not generate electric arc between each other；Operating condition voltage is resistant to when reaching distance enough between operator moving contact 4 and main static contact 5
When, quiet arcing bar 12 starts to be detached from and generate electric arc with dynamic layback arcing contact 15, and quiet arcing bar 12 is multiple in left reduction torsion spring 9 and the right side
The lower quickly rebound of the torque effect of position torsional spring 10, so that because of trip that electric arc generates between quiet arcing bar 12 and dynamic layback arcing contact 15
Reduce from gas density, to quickly break the arc current between quiet arcing bar 12 and dynamic layback arcing contact 15, greatly shortens
The ablation time reduces scaling loss；Quiet arcing bar 12 springs back reset, quiet arcing under the action of left reduction torsion spring 9, right reduction torsion spring 10
Fast Collision buffer spring device 13 after the rebound of bar 12 resets, quiet arcing bar 12 is fast under the buffer function of buffer spring device 13
Speed stabilization stops swinging, and separating brake current interruption process is completed.
Although the utility model has been disclosed with preferred embodiment as above, it is not intended to limit the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the utility model technical spirit to the above reality
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (5)
1. high voltage isolator Rapid arc breaking device, which is characterized in that including quiet layback arc device (2) and dynamic layback arc device
(3), the quiet layback arc device (2) is installed on the front side on quiet side mounting bracket (1) and being located at main static contact (5), institute
Layback arc device (3) is stated to be installed in operator moving contact (4).
2. high voltage isolator Rapid arc breaking device according to claim 1, which is characterized in that the quiet layback arc device
(2) comprising quiet arc bracket (6), swing link bracket (7), quiet side drainage thread (8), left reduction torsion spring (9), right reduction torsion spring (10), torsion
Spring fixed pin (11), quiet arcing bar (12), buffer spring device (13), quiet arcing bar shaft (14)；The quiet arcing bar (12)
It is installed on swing link bracket (7) by quiet arcing bar shaft (14), quiet arcing bar (12) can turn around quiet arcing bar shaft (14)
It is dynamic；The left reduction torsion spring (9) is close to one end of quiet arcing bar (12) and right reduction torsion spring (10) close to quiet arcing bar (12)
One end is each attached on the anchor tip of quiet arcing bar (12) lower end, the one end of left reduction torsion spring (9) far from quiet arcing bar (12)
The torsional spring fixed pin being installed on swing link bracket (7) is each attached to far from one end of quiet arcing bar (12) with right reduction torsion spring (10)
(11) on；The left reduction torsion spring (9) and right reduction torsion spring (10) apply compression buffer spring device to quiet arcing bar (12)
(13) pre- torsional moment is held against quiet arcing bar (12) on buffer spring device (13), and buffer spring device (13) is pacified
Loaded on quiet arc bracket (6), quiet arc bracket (6) and swing link bracket (7) are connected；Quiet arcing bar (12) can overcome a left side under external force
Reduction torsion spring (9), right reduction torsion spring (10) pre- torsional moment to far from buffer spring device (13) lateral direction swing；It is described
The anchor tip of quiet arcing bar (12) lower end is conductively connected by quiet side drainage thread (8) and swing link bracket (7).
3. high voltage isolator Rapid arc breaking device according to claim 1 or 2, which is characterized in that the dynamic layback arc
Device (3) includes dynamic layback arcing contact (15), moving arcing contact swing rod (16), moving arcing contact switch block (17), moving arcing contact shaft
(18), moving arcing contact reduction torsion spring (19), moving arcing contact install anchor ear (20), moving arcing contact mounting plate (21), torsional spring fixed plate
(22), moving arcing contact limited post (23), moving arcing contact drainage thread (24), the dynamic layback arc device (3) are pacified by moving arcing contact
Dress anchor ear (20) is installed in operator moving contact (4)；The dynamic layback arcing contact (15) is fixed on moving arcing contact swing rod (16)
One end, the other end of moving arcing contact swing rod (16) and moving arcing contact switch block (17) are connected；It is mounted on moving arcing contact mounting plate (21)
On moving arcing contact shaft (18) pass through moving arcing contact switch block (17), move layback arcing contact (15), moving arcing contact swing rod (16) and
The entirety of moving arcing contact switch block (17) can be rotated around moving arcing contact shaft (18), under the moving arcing contact reduction torsion spring (19)
End is fixed on moving arcing contact switch block (17), and the upper end of moving arcing contact reduction torsion spring (19) is fixed on torsional spring fixed plate (22),
Moving arcing contact limited post (23) is set to moving arcing contact swing rod (16) side and is fixed on moving arcing contact mounting plate (21), and torsional spring is solid
Fixed board (22) and moving arcing contact limited post (23) are connected；Moving arcing contact reduction torsion spring (19) provides torsion to moving arcing contact switch block (17)
Square makes moving arcing contact switch block (17) against moving arcing contact limited post (23)；Dynamic layback arcing contact (15) can be to remote under external force
Direction from moving arcing contact limited post (23) is swung；Moving arcing contact switch block (17) is embraced by moving arcing contact drainage thread (24) and installation
(20) are bound round to be conductively connected.
4. high voltage isolator Rapid arc breaking device according to claim 3, which is characterized in that the dynamic layback arcing contact
(15) one end of moving arcing contact swing rod (16) is fixed on by screw.
5. high voltage isolator Rapid arc breaking device according to claim 3, which is characterized in that the moving arcing contact switch block
(17) it is equipped with mounting hole, the other end of moving arcing contact swing rod (16), which is caught in mounting hole, to be realized moving arcing contact swing rod (16) and move
Arcing contact switch block (17) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600730.5U CN208848811U (en) | 2018-09-29 | 2018-09-29 | High voltage isolator Rapid arc breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600730.5U CN208848811U (en) | 2018-09-29 | 2018-09-29 | High voltage isolator Rapid arc breaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208848811U true CN208848811U (en) | 2019-05-10 |
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ID=66374157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821600730.5U Withdrawn - After Issue CN208848811U (en) | 2018-09-29 | 2018-09-29 | High voltage isolator Rapid arc breaking device |
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| CN (1) | CN208848811U (en) |
Cited By (1)
| 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 |
-
2018
- 2018-09-29 CN CN201821600730.5U patent/CN208848811U/en not_active Withdrawn - After Issue
Cited By (2)
| 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 |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190510 Effective date of abandoning: 20231107 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190510 Effective date of abandoning: 20231107 |