CN205752007U - A kind of outdoor high-voltage vacuum breaker - Google Patents
A kind of outdoor high-voltage vacuum breaker Download PDFInfo
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- CN205752007U CN205752007U CN201620652820.3U CN201620652820U CN205752007U CN 205752007 U CN205752007 U CN 205752007U CN 201620652820 U CN201620652820 U CN 201620652820U CN 205752007 U CN205752007 U CN 205752007U
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Abstract
This utility model provides a kind of outdoor high-voltage vacuum breaker, including support, housing, current transformer, three-phase pole, brake separating mechanism and drive mechanism, it is characterized in that: described brake separating mechanism includes that the most described support is fixedly installed on permanent-magnet operating mechanism and manual brake separating mechanism, described permanent-magnet operating mechanism is arranged on inside mechanism case, and described manual brake separating mechanism is arranged on outside described mechanism case, and is relatively fixed setting by described mechanism case and described permanent-magnet operating mechanism；Described permanent-magnet operating mechanism includes permanent magnet mechanism installing rack, the coil being arranged on described permanent magnet mechanism installing rack and dynamic iron core, static iron core and the permanent magnet arranged around described coil, installing the guide post linked with it in described dynamic iron core, described guide post is connected with connecting plate；Described manual brake separating mechanism can release described dynamic iron core and coordinate with described static iron core combined floodgate.This practical new employing permanent-magnet operating mechanism simple in construction, gearing function is reliable, and low cost of manufacture.
Description
Technical field
This utility model relates to high-voltage switch gear technical field, is specifically related to a kind of outdoor high-voltage vacuum breaker.
Background technology
The features such as vacuum circuit breaker is strong due to arc extinguishing ability, and electrical endurance length, on-site maintenance convenience, technology content are high,
In power system capital construction and reforming without oil, 40.5KV and following electric pressure are cut-off lectotype selection, and by extensively
Application, for the primary equipment of primary cut-out type selecting.Wherein, vacuum circuit breaker is substantially by three-phase pole, current transformer, shell
Body, drive mechanism and operating mechanism composition, but commercially vacuum circuit breaker is of a great variety, mainly distinguishes on operating mechanism,
It is main for especially using spring operating mechanism as the high-pressure vacuum breaker of outdoor, and this spring operating mechanism structure is multiple
Miscellaneous, parts are many, operationally need to be driven by external power source or manually by spring energy-storage, when needing to close a floodgate, energy storage is kept
Threading off, release spring energy completes to close a floodgate, and needs mechanical lock buckle to keep closing position；During separating brake, combined floodgate holding is carried out
Thread off, utilize touch spring and tripping spring energy storage to realize separating brake.Between the parts that this structure causes in longtime running
Abrasion and affect by external environment the organ caused get rusty and laying dust be all easy to cause the mechanical breakdowns such as clamping stagnation.Always
It, the vacuum circuit breaker constructions using spring operating mechanism is complicated, and operational reliability is difficult to ensure, and manufacturing cost is high, safeguards
Workload is big.
Summary of the invention
For solve above-mentioned technical problem, this utility model provide a kind of simple in construction, reliable in action, the one of length mechanical life
Plant outdoor high-voltage vacuum breaker.
To achieve these goals, this utility model have employed following technical scheme:
A kind of outdoor high-voltage vacuum breaker, including support, housing, current transformer, three-phase pole, described three-phase pole
It is arranged on housing, the drive mechanism being connected between brake separating mechanism and described three-phase pole is installed in described housing, described
Brake separating mechanism includes that the most described support is fixedly installed on permanent-magnet operating mechanism and manual brake separating mechanism, described permanent-magnet operating mechanism
Being arranged on inside mechanism case, described manual brake separating mechanism is arranged on outside described mechanism case, and by described mechanism case with described forever
Magnetic operating mechanism is relatively fixed setting；Described permanent-magnet operating mechanism includes permanent magnet mechanism installing rack, is arranged on described permanent magnet mechanism
Install in coil on installing rack and the dynamic iron core, static iron core and the permanent magnet that arrange around described coil, described dynamic iron core
The guide post linked with it, described guide post is connected with connecting plate；Described permanent-magnet operating mechanism radially connects transmission by connecting plate
Main shaft in mechanism, three-phase connecting plate hinged on described main shaft drives insulated tension pole action；Described manual brake separating mechanism can release
Described dynamic iron core closes a floodgate with described static iron core and coordinates.
Described manual brake separating mechanism includes separating brake handle and the manual brake separating axle with the linkage of described separating brake handle, makes described point
Return unit that lock handle resets and two locating parts being arranged on described permanent magnet mechanism installing rack.
Described return unit includes being arranged at the pin in manual brake separating axle and copper sheathing, and is held between described pin and copper sheathing
Torsion spring；The most corresponding two locating parts in the two ends of described pin.
Described torsion spring includes two flexible terminals, and one end abuts locating part, and the other end abuts with described pin end.
The two ends of pin on manual brake separating axle described in said two locating part backstop respectively, to limit turning of described separating brake handle
Dynamic scope.
Described manual brake separating axle passes has molding for connecting the semiaxis of static iron core on one end of permanent magnet mechanism installing rack；Institute
State and the travel switch corresponding with described guide post is installed below permanent magnet mechanism installing rack.
Being provided with tripping spring in described mechanism case, described tripping spring one end is connected with main shaft, and its other end is arranged on shell
Fix in spring housing below body and by fixed plate.
Described main shaft is provided with the first connecting lever and the second connecting lever, described first connecting lever hinged with connecting plate come drive shaft turn
Dynamic, described second connecting lever is articulated with the buffer being fixed on housing, and described buffer has activity corresponding with described main shaft
Roller.
Described main shaft one end is provided with the instruction pin linked with described main shaft, and described instruction pin is with the mistake of described main axis
Can be used to refer in journey on housing on deciliter display board divides/"on" position.
Described three-phase connecting plate is provided with the regulation head being connected with described insulated tension pole, described regulation head and described three-phase connecting plate
By fixing connection of having strong market potential, described regulation head is threaded rotate the length of regulation insulated tension pole.
Described three-phase connecting plate both sides are provided with dividing plate symmetrical in being fixed on housing, described dividing plate form for described
Have strong market potential the chute moved up and down, described in the two ends had strong market potential be respectively protruding in the chute that both sides are corresponding.
Outdoor high-voltage vacuum breaker of the present utility model has the advantage that
(1) this utility model is by using permanent-magnet operating mechanism, including the line being arranged on described permanent magnet mechanism installing rack
Circle and the dynamic iron core, static iron core and the permanent magnet that arrange around described coil, relative to traditional spring operating mechanism, permanent magnetism
The force transmission member that operating mechanism relates to divide-shut brake is less, so that divide-shut brake action is relatively reliable, fault rate is lower；Simultaneously
Also eliminate the devices such as external power source driving, energy storage and mechanical lock so that it is structure is simpler, compact, contributes to reducing manufacturing
Cost, saving installing space.
(2) vacuum circuit breaker of the present utility model, connects connecting lever drive shaft by the connecting plate on permanent-magnet operating mechanism and turns
Dynamic, thus drive is hinged on three-phase connecting plate up and down motion on main shaft and drives insulated tension pole action, completes circuit-breaker switching on-off；With
Time, there is again manual breaking function, simple operations just can solution must not the problem of separating brake in time, this simple in construction, gearing
Can be reliable, safety can ensure.
(3) vacuum circuit breaker of the present utility model, the permanent magnetic of the permanent-magnet operating mechanism used persistently and is difficult to disappear,
Consuming low during divide-shut brake, make-break capacity is strong, and mechanical life is long.
Accompanying drawing explanation
Fig. 1 is this utility model mesohigh vacuum circuit breaker constructions schematic diagram；
Fig. 2 is permanent-magnet operating mechanism structural representation in Fig. 1；
Fig. 3 is manual brake separating axle construction schematic diagram in Fig. 2
Fig. 4 is drive mechanism structural scheme of mechanism in Fig. 1；
Fig. 5 is three-phase link configuration schematic diagram in Fig. 4；
Fig. 6 is the partial structurtes enlarged diagram of drive mechanism in Fig. 4.
Description of reference numerals:
1-permanent-magnet operating mechanism；11-permanent magnet mechanism installing rack；12-manual brake separating mechanism；121-separating brake handle；122-hands
Dynamic separating brake axle；123-copper sheathing；124-torsion spring；125-sells；126-locating part；127-semiaxis；13-connecting plate；14-moves iron core；15-line
Circle；16-static iron core；17-travel switch；2-drive mechanism；21-main shaft；22-three-phase connecting plate；221-regulates head；222-has strong market potential；
23-the first connecting lever；24-the second connecting lever；25-buffer；26-roller；27-indicates pin；28-dividing plate, 281-chute；3-housing；
4-pole；5-tripping spring；51-spring housing；52-fixed plate；6-mechanism case；7-support；8-insulated tension pole.
Detailed description of the invention
Embodiment 1
Below in conjunction with the accompanying drawings a kind of outdoor high-voltage vacuum breaker of the present embodiment is described in further detail.
The present embodiment provides, a kind of outdoor high-voltage vacuum breaker as shown in figs 1 to 6, including support 7, housing 3, electricity
Current transformer, three-phase pole, described three-phase pole is arranged on housing, be provided with in described housing 3 be connected to brake separating mechanism and
Drive mechanism 2 between described three-phase pole, described brake separating mechanism includes that the most described support is fixedly installed on permanent magnet operating machine
Structure 1 and manual brake separating mechanism 12, it is internal that described permanent-magnet operating mechanism 1 is arranged on mechanism case 6, and described manual brake separating mechanism 12 is arranged
Outside described mechanism case, and it is relatively fixed setting by described mechanism case 6 with described permanent-magnet operating mechanism 1；Described permanent magnet operating
Mechanism includes permanent magnet mechanism installing rack 11, the coil 15 being arranged on described permanent magnet mechanism installing rack and sets around described coil
Dynamic iron core 14, static iron core 16 and the permanent magnet put, installs the guide post linked with it, described guide post in described dynamic iron core 14
It is connected with connecting plate 13；Described permanent-magnet operating mechanism 1 radially connects main shaft 21 on drive mechanism 2, described main shaft by connecting plate 13
Three-phase connecting plate 22 hinged on 21 drives insulated tension pole 8 action；Described manual brake separating mechanism 12 can release described dynamic iron core 14
Close a floodgate with described static iron core 16 and coordinate.
Above-mentioned embodiment is the core technology scheme of the present embodiment, and described brake separating mechanism includes permanent-magnet operating mechanism 1
With manual brake separating mechanism 12, the coil setting in the permanent-magnet operating mechanism used arranges two ends and is respectively mounted dynamic iron core 14 with quiet
Iron core 16, dynamic iron core relative to static iron core above, and coil 15 is arranged around permanent magnet, relative to traditional bullet with sound iron core
Spring operating mechanism, the force transmission member that permanent-magnet operating mechanism relates to divide-shut brake is less, so that divide-shut brake action is relatively reliable,
Fault rate is lower；Also eliminate the devices such as external power source driving, energy storage and mechanical lock so that it is structure is simpler, compact simultaneously,
Contribute to reducing manufacturing cost, saving installing space；The manual brake separating mechanism 12 additionally being had is under simple external force operates, just
Dynamic described dynamic iron core can be released coordinate with static iron core combined floodgate, make described permanent-magnet operating mechanism 1 carry out separating brake action；Further
, described permanent-magnet operating mechanism 1 radially connects main shaft 21 on drive mechanism 2 by connecting plate 13, on described main shaft hinged three
Phase connecting plate 22 drives insulated tension pole 8 action, and transmission performance is reliable, and safety can ensure.
In the present embodiment, when high-pressure vacuum breaker carries out divide-shut brake work, first pass through permanent magnetism in vacuum circuit breaker
Operating mechanism 1 action so that it is internal dynamic iron core 14 knee-action, exports through connecting plate 13, and described connecting plate drives the first connecting lever 23 to carry
Dynamic main shaft 21 rotates, and coordinates through the second connecting lever 24 and buffer 25 and rotates with spindle axis, drives and be articulated with three on main shaft 21
Phase connecting plate 22 moves up and down, and i.e. moves iron core 14 to static iron core 16 direction adhesive or release, drives main shaft 21 clockwise or the inverse time
Pin rotates, then drives three-phase connecting plate 22 on main shaft upwards push up or pull down, and described three-phase connecting plate 22 other end drives insulated tension pole 8
Move up and down, it is achieved the divide-shut brake work of vacuum circuit breaker.
Further, being provided with tripping spring 5 in described mechanism case, described tripping spring 5 one end is connected with main shaft 21, and it is another
One end is arranged in the spring housing 51 below housing and fixes by fixed plate 52, and wherein tripping spring acts on the pulling force on main shaft
It is contrary with the closing retention force of permanent-magnet operating mechanism.
As Figure 1-Figure 2, during closing operation, produce electromagnetic force adhesive after coil 15 energising and move iron core 14, now, coil
The 15 downward the suction-combining forces produced are more than the pulling force of tripping spring 5, and dynamic iron core down moves to static iron core direction, when dynamic iron core 14 is transported
Moving closing position, when its internal guide post touches travel switch 17, coil losing electricity, periphery is provided with permanent magnet in addition, makes
Dynamic iron core 14 keeps "on" position；During sub-switching operation, coil 15 energising can produce the magnetic field force contrary with permanent magnetic field, thus offsets
The suction of permanent magnet, under the reciprocal closing retention force of tripping spring 5, it is achieved separating brake moves.
As shown in Fig. 2-Fig. 3, described manual brake separating mechanism 12 include separating brake handle 121 and with described separating brake handle linkage
Manual brake separating axle 122, makes return unit that described separating brake handle resets and is arranged on two on described permanent magnet mechanism installing rack
Locating part 126；Described return unit includes pin 125 and the copper sheathing 123 being arranged in manual brake separating axle, and be held on described pin and
Torsion spring 124 between copper sheathing, the most corresponding two locating parts 126 in the two ends of described pin 125, described torsion spring 124 includes two bullets
Property terminal, one end abuts locating part, and the other end abuts with described pin 125 end, and said two locating part 126 is distinguished described in backstop
The two ends of pin in manual brake separating axle 122, to limit the slewing area of described separating brake handle 121, simultaneously at described manual brake separating axle
Molding is had for connecting the semiaxis 127 of static iron core on 122 one end passing permanent magnet mechanism installing rack 11.Specifically, the present embodiment
The slewing area of middle separating brake handle 121 is 60-120 °, and this slewing area is preferably 60 ° or 120 ° further, the most preferably
It it is 90 °.
In actually used, when faulty urgent need manual brake separating, only need less power to rotate separating brake handle 121, pass through hands
Torsion spring 124 on dynamic separating brake axle, pin 125 and two locating parts 126 coordinate energy storage and the transmission of the power that realizes so that connect permanent magnet mechanism
On static iron core 16, semiaxis 127 rotates, when the power of manual brake separating mechanism 12 and closing a floodgate more than permanent magnet mechanism 1 with joint efforts of tripping spring 5
During power, semiaxis 127 partial turn thus flick the closing position of dynamic iron core 14 and static iron core 16, it is achieved manual brake separating.This hands
Manual brake-separating device simple in construction, easy to use, safely and effectively.
As shown in Figure 4, the drive mechanism 2 of vacuum circuit breaker mainly includes main shaft 21, three-phase connecting plate 22, insulated tension pole,
The first connecting lever 23 and the second connecting lever 24 being also arranged on described main shaft 21, described first connecting lever 23 is hinged with connecting plate 13 to be driven
Dynamic main shaft 21 rotates, and described second connecting lever 24 connects the buffer 25 on fixing housing, and described buffer 25 has and described master
The roller 26 of axle correspondence activity, in whole motor process, connecting lever transmits as the transition between operating mechanism and main shaft 21, again
The buffering playing circuit-breaker switching on-off with buffer 25 is stablized and is flexibly connected effect.
As shown in Fig. 5-Fig. 6, described three-phase connecting plate 22 is provided with the regulation 221 being connected with described insulated tension pole 8, described
Regulation 221, described regulation 221 is threaded rotate regulation absolutely by fixing connection of having strong market potential with described three-phase connecting plate
The length of edge pull bar 8, can be according to specifically arranging regulation, it is achieved the excess of stroke regulation of chopper；Described three-phase connecting plate 22 both sides are installed
There is dividing plate 28 symmetrical in being fixed on housing, described dividing plate 28 forms the chute of 222 up and down motions of having strong market potential described in supplying
281, described in have strong market potential 222 two ends be respectively protruding in chute corresponding to both sides 281, chute is preferably perpendicular shape dead slot.This
Structure arrange, be set in chute by having strong market potential, chute 281 define have strong market potential 222 movement locus, the most just define three be connected
The movement locus pulled, it is ensured that three-phase connecting plate 22 drives stability during regulation 221 connection insulated tension pole 8 action, it is achieved can
Move up and down by ground, without occurring other position, direction to offset.
In the present embodiment, in order to show the opening and closing state of the high-pressure vacuum breaker of the present embodiment more intuitively, leading
Axle 21 one end is provided with and the instruction pin 27 of main shaft 21 linkage rotation, during described instruction pin 27 rotates with described main shaft 21
Divide/the "on" position, i.e. main shaft 21 combined floodgate that can be used to refer on housing on deciliter display board can drive instruction pin 27 when rotating
The "on" position of instruction display board, can drive instruction pin 27 to indicate the gate-dividing state of display board when main shaft 21 separating brake rotates.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or
Change among the protection domain still in this utility model creation.
Claims (10)
1. an outdoor high-voltage vacuum breaker, including support (7), housing (3), current transformer, three-phase pole, described three-phase
Pole is arranged on housing (3), is provided with the transmission being connected between brake separating mechanism and described three-phase pole in described housing (3)
Mechanism (2), it is characterised in that: described brake separating mechanism include the most described support (7) be fixedly installed on permanent-magnet operating mechanism (1) and
Manual brake separating mechanism (12), it is internal that described permanent-magnet operating mechanism (1) is arranged on mechanism case (6), described manual brake separating mechanism (12)
It is arranged on described mechanism case (6) outward, and is relatively fixed setting by described mechanism case (6) and described permanent-magnet operating mechanism (1)；Institute
State permanent-magnet operating mechanism (7) and include permanent magnet mechanism installing rack (11), the coil being arranged on described permanent magnet mechanism installing rack (11)
(15) dynamic iron core (14), static iron core (16) and the permanent magnet and around described coil (15) arranged, described dynamic iron core (14)
The guide post that interior installation links with it, described guide post is connected with connecting plate (13)；Described permanent-magnet operating mechanism is by connecting plate radially
The upper main shaft (21) of upper connection drive mechanism (2), the upper hinged three-phase connecting plate (22) of described main shaft (21) drives insulated tension pole action；
Described manual brake separating mechanism (12) can release described dynamic iron core (14) and coordinate with described static iron core (16) combined floodgate.
A kind of outdoor high-voltage vacuum breaker the most according to claim 1, it is characterised in that: described manual brake separating mechanism
(12) include separating brake handle (121) and the manual brake separating axle (122) with the linkage of described separating brake handle, make described separating brake handle reset
Return unit and two locating parts (126) being arranged on described permanent magnet mechanism installing rack.
A kind of outdoor high-voltage vacuum breaker the most according to claim 2, it is characterised in that: described return unit includes arranging
Pin (125) in manual brake separating axle and copper sheathing (123), and it is held on the torsion spring between described pin (125) and copper sheathing
(124)；The most corresponding two locating parts (126) in the two ends of described pin (125)；
Described torsion spring (124) includes two flexible terminals, and one end abuts locating part (126), the other end and described pin (125) end
Abut.
A kind of outdoor high-voltage vacuum breaker the most according to claim 3, it is characterised in that: said two locating part
(126) manual brake separating axle described in difference backstop is sold the two ends of (125), to limit the slewing area of described separating brake handle (121).
5. according to a kind of outdoor high-voltage vacuum breaker according to any one of claim 1-4, it is characterised in that: described manually
Separating brake axle (122) passes the semiaxis (127) having molding for connecting static iron core on one end of permanent magnet mechanism installing rack (11)；Described
Permanent magnet mechanism installing rack (11) lower section is provided with the travel switch (17) corresponding with described guide post.
A kind of outdoor high-voltage vacuum breaker the most according to claim 1, it is characterised in that: it is provided with in described mechanism case point
Lock spring (5), described tripping spring one end is connected with main shaft (21), and its other end is arranged in the spring housing (51) below housing
And fix by fixed plate (52).
A kind of outdoor high-voltage vacuum breaker the most according to claim 1, it is characterised in that: described main shaft (21) is provided with
First connecting lever (23) and the second connecting lever (24), described first connecting lever (23) and connecting plate (13) hinged come drive shaft rotate, described
Second connecting lever (24) is articulated with the buffer (25) being fixed on housing, and described buffer has activity corresponding with described main shaft
Roller (26).
A kind of outdoor high-voltage vacuum breaker the most according to claim 7, it is characterised in that: described main shaft (21) one end is pacified
Equipped with the instruction pin (27) linked with described main shaft (21), described instruction pin (27) is with energy during described main shaft (21) rotation
Enough come on indicator shell on deciliter display board point/"on" position.
A kind of outdoor high-voltage vacuum breaker the most according to claim 1, it is characterised in that: on described three-phase connecting plate (22)
Being provided with the regulation head (221) being connected with described insulated tension pole (8), described regulation head (221) is passed through with described three-phase connecting plate (222)
Having strong market potential, (222) are fixing to be connected, and described regulation head (221) is threaded rotate the length of regulation insulated tension pole (8).
A kind of outdoor high-voltage vacuum breaker the most according to claim 1, it is characterised in that: described three-phase connecting plate (22)
Both sides are provided with dividing plate (28) symmetrical in being fixed on housing, described dividing plate (28) forms and has strong market potential on (222) described in supplying
The chute (281) of lower motion, described in the have strong market potential two ends of (222) be respectively protruding in chute corresponding to both sides (281).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652820.3U CN205752007U (en) | 2016-06-23 | 2016-06-23 | A kind of outdoor high-voltage vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652820.3U CN205752007U (en) | 2016-06-23 | 2016-06-23 | A kind of outdoor high-voltage vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205752007U true CN205752007U (en) | 2016-11-30 |
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ID=57381541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620652820.3U Active CN205752007U (en) | 2016-06-23 | 2016-06-23 | A kind of outdoor high-voltage vacuum breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134737A (en) * | 2017-04-05 | 2017-09-05 | 平高集团有限公司 | Cart frame, circuit breaker cart and the switch cubicle of breaker |
| CN107507732A (en) * | 2017-08-21 | 2017-12-22 | 江西省拓网电气有限公司 | Vacuum circuit breaker force-reducing device |
| CN109659191A (en) * | 2018-11-13 | 2019-04-19 | 许继集团有限公司 | A kind of switching device and its drive mechanism |
| CN116313631A (en) * | 2023-05-16 | 2023-06-23 | 瑞亿智能控制设备无锡有限公司 | Outdoor permanent magnet high-voltage circuit breaker |
| CN117476396A (en) * | 2023-12-14 | 2024-01-30 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
-
2016
- 2016-06-23 CN CN201620652820.3U patent/CN205752007U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134737A (en) * | 2017-04-05 | 2017-09-05 | 平高集团有限公司 | Cart frame, circuit breaker cart and the switch cubicle of breaker |
| CN107507732A (en) * | 2017-08-21 | 2017-12-22 | 江西省拓网电气有限公司 | Vacuum circuit breaker force-reducing device |
| CN107507732B (en) * | 2017-08-21 | 2020-05-29 | 江西省拓网电气有限公司 | Force reducing device of vacuum circuit breaker |
| CN109659191A (en) * | 2018-11-13 | 2019-04-19 | 许继集团有限公司 | A kind of switching device and its drive mechanism |
| CN116313631A (en) * | 2023-05-16 | 2023-06-23 | 瑞亿智能控制设备无锡有限公司 | Outdoor permanent magnet high-voltage circuit breaker |
| CN116313631B (en) * | 2023-05-16 | 2023-08-22 | 瑞亿智能控制设备无锡有限公司 | Outdoor permanent magnet high-voltage circuit breaker |
| CN117476396A (en) * | 2023-12-14 | 2024-01-30 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
| CN117476396B (en) * | 2023-12-14 | 2024-05-03 | 北京昊创瑞通电气设备股份有限公司 | Quick operating mechanism for pole-mounted circuit breaker and pole-mounted circuit breaker |
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