CN107275145A - A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula - Google Patents
A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula Download PDFInfo
- Publication number
- CN107275145A CN107275145A CN201710428242.4A CN201710428242A CN107275145A CN 107275145 A CN107275145 A CN 107275145A CN 201710428242 A CN201710428242 A CN 201710428242A CN 107275145 A CN107275145 A CN 107275145A
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- CN
- China
- Prior art keywords
- mechanical formula
- quick mechanical
- formula switch
- vacuum interrupter
- repulsion
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Classifications
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- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula, the Quick mechanical formula switch includes vacuum interrupter and electromagnetic repulsion mechanism, the electromagnetic repulsion mechanism includes repulsion dish, switching winding, closing coil and the secondary discharge circuit being connected with switching winding, the moving contact of the vacuum interrupter is directly fixedly connected with repulsion dish, and the repulsion dish are located between switching winding and closing coil and can moved up and down in the presence of electromagnetic repulsion force.The insulated tension pole between vacuum interrupter and electromagnetic repulsion mechanism is eliminated, the quality of moving component is alleviated, separating brake, closing speed is improved, separating brake, closing time is shortened；Reduce mechanical shock when separating brake, feed motion.
Description
Technical field
The present invention relates to the technical field of high-voltage electric power system, particularly a kind of Quick mechanical formula switch and use should
The high-voltage electric power system of Quick mechanical formula switch.
Background technology
In current high-voltage electric power system, when short trouble occurs for circuit, short circuit current flow is especially big, more than fast at present
The ability that speed mechanical switch can cut-off, further, since short circuit current flow is excessive, when Quick mechanical formula is cut-off, its
Life-span can be drastically reduced, it is necessary to changed in time, cause the high cost of line upkeep.
To reduce the short circuit current flow of high voltage power transmisson system, the life-span of Quick mechanical formula switch is improved, limit is sealed in systems
Reactor is flowed, first reduces amplitude of short circuit, the requirement that connecting-disconnecting function is switched to Quick mechanical formula is reduced.In this scenario, soon
Speed mechanical switch such as is responsible for extremely crucial through-flow, arc extinguishing, quickly isolates, insulate at the important work during drop-out current
With.Existing Quick mechanical formula switch is made up of vacuum interrupter and electromagnetic repulsion mechanism, between arc-chutes and electromagnetic repulsion mechanism
Connected by insulated tension pole, the structure has both sides shortcoming：One is that single switch module height is higher, when for high voltage
Multiple block coupled in series are needed during grade, whole height is too high；Two be that heavy moving parts are big, the operating work that operating mechanism needs
Greatly, and because impulsive force is excessive, it is easily caused the damage of parts in insulated tension pole and arc-chutes.Here it is prior art
Weak point.
The content of the invention
The technical problems to be solved by the invention, aiming at the deficiency present in prior art, and provide a kind of quick
Mechanical switch and the high-voltage electric power system switched using the Quick mechanical formula, the Quick mechanical formula switch eliminate vacuum
Insulated tension pole between arc-chutes and electromagnetic repulsion mechanism, alleviates the quality of moving component, improves point, closing speed, contracting
Short point, closing time；Mechanical shock during switch motion is reduced, while reducing the requirement to operating mechanism, is saved
Cost.
This programme is achieved by the following technical measures：A kind of Quick mechanical formula switch, it is characterized in that：Including vacuum
Arc-chutes and electromagnetic repulsion mechanism, the electromagnetic repulsion mechanism include repulsion dish, switching winding, closing coil and switching winding
The secondary discharge circuit I of connection and the secondary discharge circuit II being connected with closing coil, the moving contact of the vacuum interrupter
Directly be fixedly connected with repulsion dish, the repulsion dish be located between switching winding and closing coil and can electromagnetic repulsion force effect
Under move up and down.Using the technical program, the moving contact of the vacuum interrupter is directly fixedly connected with repulsion dish, is eliminated true
Insulated tension pole between empty arc-chutes and electromagnetic repulsion mechanism, alleviates the quality of moving component, improves separating brake, closes a floodgate fast
Degree, shortens separating brake, closing time；Mechanical shock when separating brake, feed motion is reduced, while reducing to operating mechanism
It is required that, save cost；The overall height of Quick mechanical formula switch is reduced, makes structure compacter.
It is preferred that, the secondary discharge circuit I includes isolating transformer, and the isolating transformer is parallel with rectification module and storage
Energy electric capacity, the both positive and negative polarity of the storage capacitor is connected with switching winding, between the positive pole and switching winding of the storage capacitor
It is provided with IGCT.At the same time, remove after insulated tension pole, current potential and the system nominal voltage one of switching winding and closing coil
Cause.Using the technical program, isolating transformer is pre-charged by rectification module to storage capacitor, is needed when Quick mechanical formula is switched
When carrying out sub-switching operation, turn on thyristors is triggered, storage capacitor produces electromagnetic repulsion force to switching winding electric discharge, and repulsion dish are in electromagnetism
Move up and down to realize separating brake under the driving of repulsion, remove after insulated tension pole, the current potential of switching winding and closing coil is with being
Rated voltage of uniting is consistent, and storage capacitor is charged using isolating transformer, it is ensured that the security of insulation against ground and power supply, can
By property.
It is preferred that, the secondary discharge circuit II includes isolating transformer, and the isolating transformer is parallel with rectification module
And storage capacitor, the both positive and negative polarity of the storage capacitor is connected with closing coil, the positive pole and closing line of the storage capacitor
IGCT is provided between circle.Using the technical program, isolating transformer is pre-charged by rectification module to storage capacitor, when fast
When speed mechanical switch needs to carry out closing operation, turn on thyristors is triggered, storage capacitor produces electromagnetism to closing coil electric discharge
Repulsion, repulsion dish move up and down to realize combined floodgate under the driving of electromagnetic repulsion force, remove after insulated tension pole, switching winding and conjunction
The current potential of brake cable circle is consistent with system nominal voltage, storage capacitor is charged using isolating transformer, it is ensured that insulation against ground
Security, reliability with power supply.
It is preferred that, it is provided with rebound between the switching winding and closing coil.Using the technical program, switching winding
With separated in the middle of closing coil with rebound, it is ensured that repulsion dish have enough stroke spaces up and down.
It is preferred that, the lower end of the moving contact of the vacuum interrupter is connected with state dish spring device., can using the technical program
It is effective to ensure that vacuum interrupter is maintained at stable sub-gate and closing state.
It is preferred that, it is provided with oil buffer below the state dish spring device.Using the technical program, oleo cushion is set
Device can be prevented effectively in separating brake and making process because excessive velocities cause vacuum interrupter part by blastic deformation or damage
Wound.
It is preferred that, the upper end of the vacuum interrupter is fixedly connected with inlet wire plate, and the inlet wire plate passes through insulating support rod
It is fixedly connected with outlet board.
It is preferred that, watchband-shaped contactor is provided with the outlet board, moving contact and the watchband-shaped contactor of the vacuum interrupter are slided
It is dynamic to coordinate.
It is preferred that, the outlet board is fixedly connected with support bar, and the support bar is fixedly connected with state dish spring device.
It is preferred that, the Quick mechanical formula switch is arranged on support insulator.Using the technical program, set pillar exhausted
Edge can keep insulation against ground.
It is preferred that, the height of the rebound is a, and the height of the repulsion dish is b, a-b >=5cm.
A kind of high-voltage electric power system switched using above-mentioned Quick mechanical formula, including it is AC power, resistance, inductance, quick
Mechanical switch, current-limiting reactor and load, the AC power, resistance, inductance, Quick mechanical formula switch, current-limiting reactor
Device and load in series composition loop.Using in the technical program, current-limiting reactor, energy are set in above-mentioned high-voltage electric power system
Enough the connecting-disconnecting function of reduction Quick mechanical formula switch, improves separating brake, closing speed using above-mentioned Quick mechanical formula switch, shortens
Separating brake, closing time；Reduce mechanical shock when separating brake, feed motion.
It is preferred that, the Quick mechanical formula switch includes vacuum interrupter and electromagnetic repulsion mechanism, the electromagnetic repulsion force machine
Structure includes repulsion dish, switching winding, closing coil, the secondary discharge circuit I being connected with switching winding and connected with closing coil
The secondary discharge circuit II connect, the moving contact of the vacuum interrupter is directly fixedly connected with repulsion dish, and the repulsion dish are located at
It can move up and down between switching winding and closing coil and in the presence of electromagnetic repulsion force.Using the technical program, the vacuum
The moving contact of arc-chutes is directly fixedly connected with repulsion dish, and the insulation eliminated between vacuum interrupter and electromagnetic repulsion mechanism is drawn
Bar, alleviates the quality of moving component, improves separating brake, closing speed, shortens separating brake, closing time；Reduce separating brake, conjunction
Mechanical shock when lock is acted, while reducing the requirement to operating mechanism, has saved cost；Reduce Quick mechanical formula switch
Overall height, makes structure compacter.
It is preferred that, the secondary discharge circuit I include isolating transformer, the isolating transformer be parallel with rectification module with
And storage capacitor, the both positive and negative polarity of the storage capacitor is connected with switching winding, the positive pole and switching winding of the storage capacitor
Between be provided with IGCT.At the same time, remove after insulated tension pole, current potential and the system nominal electricity of switching winding and closing coil
Pressure is consistent.Using the technical program, isolating transformer is pre-charged by rectification module to storage capacitor, when Quick mechanical formula switch
When needing to carry out sub-switching operation, turn on thyristors is triggered, storage capacitor produces electromagnetic repulsion force to switching winding electric discharge, and repulsion dish exist
Move up and down to realize separating brake under the driving of electromagnetic repulsion force, remove after insulated tension pole, the current potential of switching winding and closing coil
It is consistent with system nominal voltage, storage capacitor is charged using isolating transformer, it is ensured that the safety of insulation against ground and power supply
Property, reliability.
It is preferred that, the secondary discharge circuit II includes isolating transformer, and the isolating transformer is parallel with rectification module
And storage capacitor, the both positive and negative polarity of the storage capacitor is connected with closing coil, the positive pole and closing line of the storage capacitor
IGCT is provided between circle.Using the technical program, isolating transformer is pre-charged by rectification module to storage capacitor, when fast
When speed mechanical switch needs to carry out closing operation, turn on thyristors is triggered, storage capacitor produces electromagnetism to closing coil electric discharge
Repulsion, repulsion dish move up and down to realize combined floodgate under the driving of electromagnetic repulsion force, remove after insulated tension pole, switching winding and conjunction
The current potential of brake cable circle is consistent with system nominal voltage, storage capacitor is charged using isolating transformer, it is ensured that insulation against ground
Security, reliability with power supply.
It is preferred that, it is provided with rebound between the switching winding and closing coil.Using the technical program, switching winding
With separated in the middle of closing coil with rebound, it is ensured that repulsion dish have enough stroke spaces up and down.
It is preferred that, the lower end of the moving contact of the vacuum interrupter is connected with state dish spring device., can using the technical program
It is effective to ensure that vacuum interrupter is maintained at stable sub-gate and closing state.
It is preferred that, it is provided with oil buffer below the state dish spring device.Using the technical program, oleo cushion is set
Device can be prevented effectively in separating brake and making process because excessive velocities cause vacuum interrupter part by blastic deformation or damage
Wound.
It is preferred that, the upper end of the vacuum interrupter is fixedly connected with inlet wire plate, and the inlet wire plate passes through insulating support rod
It is fixedly connected with outlet board.
It is preferred that, watchband-shaped contactor is provided with the outlet board, moving contact and the watchband-shaped contactor of the vacuum interrupter are slided
It is dynamic to coordinate.
It is preferred that, the outlet board is fixedly connected with support bar, and the support bar is fixedly connected with state dish spring device.
It is preferred that, the Quick mechanical formula switch is arranged on support insulator.Using the technical program, set pillar exhausted
Edge can keep insulation against ground.
It is preferred that, the height of the rebound is a, and the height of the repulsion dish is b, a-b >=5cm.
It is preferred that, the Quick mechanical formula switch is connected in loop by inlet wire plate and outlet board.
As can be seen here, compared with prior art, with prominent substantive distinguishing features and significant progress, it is implemented the present invention
Beneficial effect be also obvious.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, it will make simple to the required accompanying drawing used in description below
Introduce on ground, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that Quick mechanical formula is switched；
Fig. 2 is the principle schematic of high-voltage electric power system.
In figure：1- inlet wire plates, 2- vacuum interrupters, the moving contact of 2.1- vacuum interrupters, 3- insulating support rods, 4- outlets
Plate, 5- switching windings, 6- repulsion dish, 7- rebounds, 8- closing coils, 9- support bars, 10- state dish spring devices, 11- oleo cushions
Device, 12- support insulators, 13- watchband-shaped contactors, TV is isolating transformer, and D is rectification module, and C is storage capacitor, and TS is brilliant lock
Pipe, AC is AC power, and R is resistance, and L is inductance, and CB switchs for Quick mechanical formula, and FCL is current-limiting reactor.
Embodiment
, below will be with specific to enable goal of the invention, feature, the advantage of the present invention more obvious and understandable
Embodiment and accompanying drawing, the technical scheme that the present invention is protected are clearly and completely described, it is clear that implementation disclosed below
Example is only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this area
All other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of this patent protection
Enclose.
As shown in figure 1, a kind of Quick mechanical formula switch, including inlet wire plate 1, vacuum interrupter 2, insulating support rod 3, outlet
Plate 4, switching winding 5, repulsion dish 6, rebound 7, closing coil 8, support bar 9, state dish spring device 10, oil buffer 11, pillar
Insulator 12, isolating transformer TV, rectifier module D, storage capacitor C and IGCT TS.The upper end of vacuum interrupter 2 is fixed on inlet wire
On plate 1, inlet wire plate 1 is fastened to by insulating support rod 3 to be occurred on plate 4, and moving contact 2.1 and the repulsion dish 6 of vacuum interrupter are led to
Threaded connection is crossed, switching winding 5 in the middle of closing coil 8 with rebound 7 with being separated, it is ensured that repulsion dish 6 there are enough stroke spaces,
Repulsion dish 6 are located between switching winding 5 and closing coil 8, and isolating transformer TV is by rectifier module D to storage capacitor C preliminary fillings
Electricity, need to carry out point when high-speed switch, closing operation when, triggering IGCT TS conducting, capacitor C to point, closing coil discharges
Electromagnetic repulsion force is produced, the upper and lower motion under the driving of electromagnetic repulsion force of repulsion dish 6 divides, closed a floodgate so as to realize and switch.The vacuum is gone out
The moving contact 2.1 of arc chamber is connected with state dish spring device 10, it is ensured that vacuum interrupter 2 is maintained at stable point, "on" position.Bistable dish
Be oil buffering 11 below spring, prevent point, in making process because excessive velocities cause vacuum interrupter part by blastic deformation or
Damage, last whole compact high-speed switch realizes insulation against ground by support insulator 12.
As shown in Fig. 2 a kind of high-voltage electric power system switched using above-mentioned Quick mechanical formula, including AC power AC, electricity
Hinder R, inductance L, Quick mechanical formula switch CB, current-limiting reactor FCL and load, the AC power AC, resistance R, inductance L,
Quick mechanical formula switch CB, current-limiting reactor FCL and load in series composition loop.The Quick mechanical formula switch includes inlet wire
Plate 1, vacuum interrupter 2, insulating support rod 3, outlet board 4, switching winding 5, repulsion dish 6, rebound 7, closing coil 8, support
Bar 9, state dish spring device 10, oil buffer 11, support insulator 12, isolating transformer TV, rectifier module D, storage capacitor C and crystalline substance
Brake tube TS.The upper end of vacuum interrupter 2 is fixed on inlet wire plate 1, and inlet wire plate 1 is fastened to by insulating support rod 3 to be occurred on plate 4,
The moving contact 2.1 of vacuum interrupter is connected through a screw thread with repulsion dish 6, and switching winding 5 in the middle of closing coil 8 with using rebound 7
Separate, it is ensured that repulsion dish 6 there are enough stroke spaces, repulsion dish 6 are located between switching winding 5 and closing coil 8, isolate transformation
Device TV is pre-charged by rectifier module D to storage capacitor C, when high-speed switch needs progress point, closing operation, triggers IGCT
TS turn on, capacitor C to point, closing coil electric discharge produce electromagnetic repulsion force, the upper and lower fortune under the driving of electromagnetic repulsion force of repulsion dish 6
It is dynamic to divide, close a floodgate so as to realize and switch.The moving contact 2.1 of the vacuum interrupter is connected with state dish spring device 10, it is ensured that vacuum extinction
Room 2 is maintained at stable point, "on" position.Be oil buffering 11 below state dish spring device, prevent point, in making process because of excessive velocities
Cause vacuum interrupter part by blastic deformation or damage, last whole compact high-speed switch is real by support insulator 12
Existing insulation against ground.
The Quick mechanical formula switch is connected in loop by inlet wire plate 1 and outlet board 4.
The Quick mechanical formula switch is not used only in above-mentioned high-voltage electric power system, can also be coordinated with other electric elements
Use.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Identical similar portion is referred to mutually between the difference of embodiment, each embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty, wound
The characteristics of property made consistent most wide scope.
Claims (10)
1. a kind of Quick mechanical formula switch, it is characterized in that：Including vacuum interrupter and electromagnetic repulsion mechanism, the electromagnetic repulsion force machine
Structure includes repulsion dish, switching winding, closing coil, the secondary discharge circuit I being connected with switching winding and connected with closing coil
The secondary discharge circuit II connect, the moving contact of the vacuum interrupter is directly fixedly connected with repulsion dish, and the repulsion dish are located at
It can move up and down between switching winding and closing coil and in the presence of electromagnetic repulsion force.
2. Quick mechanical formula switch according to claim 1, it is characterized in that：The secondary discharge circuit I includes isolation and become
Depressor, the isolating transformer is parallel with rectification module and storage capacitor, the both positive and negative polarity of the storage capacitor with separating brake line
Circle connection, IGCT is provided between the positive pole and switching winding of the storage capacitor；It is preferred that, the secondary discharge circuit II
Including isolating transformer, the isolating transformer is parallel with rectification module and storage capacitor, the both positive and negative polarity of the storage capacitor
It is connected with closing coil, IGCT is provided between the positive pole and closing coil of the storage capacitor.
3. Quick mechanical formula switch according to claim 1 or 2, it is characterized in that：The switching winding and closing coil it
Between be provided with rebound.
4. Quick mechanical formula switch according to claim 1 or 2, it is characterized in that：The moving contact of the vacuum interrupter
Lower end is connected with state dish spring device；It is preferred that, it is provided with oil buffer below the state dish spring device.
5. the Quick mechanical formula according to claim 1 or 2 for high voltage DC breaker is switched, it is characterized in that：It is described
The upper end of vacuum interrupter is fixedly connected with inlet wire plate, and the inlet wire plate is fixedly connected by insulating support rod with outlet board；It is excellent
Choosing, watchband-shaped contactor is provided with the outlet board, moving contact and the watchband-shaped contactor of the vacuum interrupter are slidably matched.
6. the Quick mechanical formula according to claim 5 for high voltage DC breaker is switched, it is characterized in that：The outlet
Plate is fixedly connected with support bar, and the support bar is fixedly connected with state dish spring device.
7. the Quick mechanical formula according to claim 1 or 2 for high voltage DC breaker is switched, it is characterized in that：It is described
Quick mechanical formula switch is arranged on support insulator.
8. the Quick mechanical formula according to claim 3 for high voltage DC breaker is switched, it is characterized in that：The transition
The height of plate is a, and the height of the repulsion dish is b, a-b >=5cm.
9. a kind of high-voltage electric power system of the Quick mechanical formula switch described in use the claims 1-8 any claims,
It is characterized in that：Including AC power, resistance, inductance, Quick mechanical formula switch, current-limiting reactor and load, the alternating current
Source, resistance, inductance, Quick mechanical formula switch, current-limiting reactor and load in series composition loop.
10. high-voltage electric power system according to claim 9, it is characterized in that：The Quick mechanical formula switch passes through inlet wire plate
It is connected to outlet board in loop.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428242.4A CN107275145A (en) | 2017-06-08 | 2017-06-08 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428242.4A CN107275145A (en) | 2017-06-08 | 2017-06-08 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
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| CN107275145A true CN107275145A (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710428242.4A Pending CN107275145A (en) | 2017-06-08 | 2017-06-08 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807045A (en) * | 2018-07-25 | 2018-11-13 | 西安交通大学 | A kind of the contact magnetic blow-out method and switching system of electromagnetic switch |
| CN109473309A (en) * | 2018-09-30 | 2019-03-15 | 安徽合凯电气科技股份有限公司 | A kind of vacuum circuit breaker with electromagnetism buffer gear |
| CN109887811A (en) * | 2019-04-01 | 2019-06-14 | 上海电力学院 | High speed repulsion device suitable for mechanical high-voltage dc circuit breaker |
| CN110108991A (en) * | 2019-05-13 | 2019-08-09 | 中国电力科学研究院有限公司 | A kind of detection device that the insulation of high speed machine switch repulsion coil disk is weak |
| CN111415849A (en) * | 2020-02-25 | 2020-07-14 | 平高集团有限公司 | Operating mechanism and circuit breaker using same |
| CN112349525A (en) * | 2020-07-10 | 2021-02-09 | 安徽一天电气技术股份有限公司 | Switch |
| CN112366667A (en) * | 2020-11-02 | 2021-02-12 | 西安交通大学 | Integrated fast switch type current limiter and method for matching integrated fast switch type current limiter with circuit breaker |
| CN113394046A (en) * | 2021-06-25 | 2021-09-14 | 西电宝鸡电气有限公司 | Vacuum contactor for 3.6kV intermediate frequency (500Hz system) |
| CN115241738A (en) * | 2022-07-29 | 2022-10-25 | 中国科学院力学研究所 | Gravity type high-voltage pulse discharge switch for coaxial cylindrical surface detonation driving device |
| CN116053094A (en) * | 2023-03-31 | 2023-05-02 | 清华大学 | Quick mechanical switch operating mechanism with adjustable opening speed and control method thereof |
| CN116844911A (en) * | 2023-07-07 | 2023-10-03 | 华中科技大学 | Electromagnetic repulsion mechanism for synchronous switching-on and switching-off of multipath parallel circuit breakers |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807045B (en) * | 2018-07-25 | 2020-06-09 | 西安交通大学 | Contact magnetic blow-out method of electromagnetic repulsion switch and switch system |
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| CN109887811A (en) * | 2019-04-01 | 2019-06-14 | 上海电力学院 | High speed repulsion device suitable for mechanical high-voltage dc circuit breaker |
| CN110108991B (en) * | 2019-05-13 | 2022-07-01 | 中国电力科学研究院有限公司 | Detection apparatus for weak insulation of repulsion coil panel of high-speed mechanical switch |
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