CN108461333B - Linkage operating mechanism - Google Patents
Linkage operating mechanism Download PDFInfo
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- CN108461333B CN108461333B CN201810396694.3A CN201810396694A CN108461333B CN 108461333 B CN108461333 B CN 108461333B CN 201810396694 A CN201810396694 A CN 201810396694A CN 108461333 B CN108461333 B CN 108461333B
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- switch
- moving contact
- main shaft
- connecting rod
- closing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a linkage operation mechanism, which relates to the technical field of power equipment, and is used for linking an isolation disconnecting link and a circuit breaker, and comprises the following components: the number of the fixing plates is two, and the two fixing plates are respectively positioned at two sides of the isolating switch and the breaker; the linkage operation mechanism comprises a first action output end and a second action output end, and the first action output end and the second action output end respectively act on a moving contact of the isolation disconnecting link and a switching handle of the circuit breaker; when power is transmitted, the linkage operation mechanism can firstly switch on the isolation disconnecting link and then switch on the circuit breaker; when the power is off, the linkage operation mechanism can break the breaker, and then break the isolation disconnecting link. The operation linkage of the isolating switch and the same operation handle of the breaker switch is realized, the electric power safety regulations are met, misoperation of personnel is prevented, and the personnel and equipment are prevented from being damaged due to misoperation.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a linkage operation mechanism.
Background
At present, a large amount of low-voltage plastic shell circuit breakers are applied to a low-voltage power grid, and as the low-voltage plastic shell circuit breakers are all injection molded and internal opening and closing conditions cannot be observed, the opening state of a circuit breaker switch cannot be guaranteed by 100%, a circuit is necessarily disconnected, and the power supply side is safely isolated. In order to solve the problems, the applicant designs to add a knife switch at the front end of the breaker to achieve visual fracture observation.
However, the isolating switch and the breaker switch are mutually independent, so that the risk of misoperation exists, and the personal safety is hurt. Therefore, it is necessary to develop an operating mechanism for the low voltage circuit breaker to be linked with the disconnecting link.
Disclosure of Invention
The invention aims to provide a linkage operation mechanism so as to reduce the technical problem of misoperation probability when an isolation disconnecting link and a circuit breaker are operated.
The embodiment of the invention provides a linkage operating mechanism for linkage isolation of a disconnecting link and a circuit breaker, which comprises the following components: the number of the fixing plates is two, and the two fixing plates are respectively positioned at two sides of the isolating switch and the breaker;
the linkage operation mechanism comprises a first action output end and a second action output end, and the first action output end and the second action output end respectively act on a moving contact of the isolation disconnecting link and a switching handle of the circuit breaker; when power is transmitted, the linkage operation mechanism can firstly switch on the isolation disconnecting link and then switch on the circuit breaker; when power is off, the linkage operation mechanism can break the breaker, and then break the isolation disconnecting link;
the linkage operation mechanism comprises an operation handle, a mechanism main shaft, a mechanism connecting plate, a moving contact connecting piece, a switch main connecting rod, a switch opening and closing deflector rod, a switch auxiliary connecting rod and a switch closing deflector rod;
the operating handle is fixedly connected with the mechanism main shaft and is used for driving the mechanism main shaft to rotate around the axis of the mechanism main shaft;
the mechanism main shaft is fixedly connected with the mechanism connecting plate;
one end of the moving contact connecting piece is hinged with the moving contact of the isolating switch, and the other end of the moving contact connecting piece is hinged with the mechanism connecting plate;
one end of the switch main connecting rod is hinged with the mechanism connecting plate, and the other end of the switch main connecting rod is fixedly connected with the switch opening deflector rod;
one end of the switch auxiliary connecting rod is hinged with the switch main connecting rod, and the other end of the switch auxiliary connecting rod is fixedly connected with the switch separating deflector rod;
the fixed plate is provided with a shaft hole matched with the mechanism main shaft so as to connect the mechanism main shaft with the operating handle;
the fixed plate is provided with a chute, and the switch opening deflector rod and the switch closing deflector rod are respectively and slidably connected in the chute.
Further, the number of the mechanism connecting plates, the switch main connecting rods and the switch auxiliary connecting rods is at least two.
Further, one end of the moving contact connecting piece is provided with a slotted hole clamping hole, the slotted hole clamping hole is connected with the moving contact of the isolating knife switch through a movable pin, and the other end of the slotted hole clamping hole is provided with a circular hole and connected with the mechanism connecting plate through the movable pin.
Furthermore, one end of the switch main connecting rod is provided with a round hole which is connected with the mechanism connecting plate through a movable pin, and the other end of the switch main connecting rod is provided with threads which are connected with the switch separating brake deflector rod through threads.
Furthermore, one end of the switch auxiliary connecting rod is provided with a round hole matched with the shaft hole of the switch main connecting rod, and the other end of the switch auxiliary connecting rod is provided with threads connected with the switch separating brake deflector rod through threads.
Further, the linkage operation mechanism comprises two fixed bearings, the two fixed bearings are respectively arranged on the two fixed plates, and the two fixed bearings are used for supporting the main shaft of the mechanism.
Further, a plurality of connecting rods are arranged between the two fixing plates and used for fixedly connecting the two fixing plates.
Further, a rubber insulating sleeve is arranged on the operating handle.
The embodiment of the invention has the following beneficial effects:
the linkage operating mechanism is used for linking the isolating switch and the circuit breaker, the circuit breaker device comprises the linkage operating mechanism and the fixing plates, the number of the fixing plates is two, and the two fixing plates are respectively positioned at two sides of the isolating switch and the circuit breaker; the linkage operation mechanism comprises a first action output end and a second action output end, and the first action output end and the second action output end respectively act on a moving contact of the isolation disconnecting link and a switching handle of the circuit breaker; specifically, the linkage operation mechanism comprises an operation handle, a mechanism main shaft, a mechanism connecting plate, a moving contact connecting piece, a switch main connecting rod, a switch opening and closing deflector rod, a switch auxiliary connecting rod and a switch closing deflector rod; the operating handle is fixedly connected with the mechanism main shaft and is used for driving the mechanism main shaft to rotate around the axis of the operating handle; the mechanism main shaft is fixedly connected with the mechanism connecting plate; one end of the moving contact connecting piece is hinged with the moving contact of the isolating switch, and the other end of the moving contact connecting piece is hinged with the mechanism connecting plate; one end of the switch main connecting rod is hinged with the mechanism connecting plate, and the other end of the switch main connecting rod is fixedly connected with the switch brake separating deflector rod; one end of the switch auxiliary connecting rod is hinged with the switch main connecting rod, and the other end of the switch auxiliary connecting rod is fixedly connected with the switch brake separating deflector rod; the fixed plate is provided with a shaft hole matched with the mechanism main shaft so as to connect the mechanism main shaft with the operating handle; the fixed plate is provided with a chute, and the switch opening deflector rod and the switch closing deflector rod are respectively and slidably connected in the chute. When power is transmitted, the linkage operation mechanism can firstly switch on the isolation disconnecting link and then switch on the circuit breaker; when the power is off, the linkage operation mechanism can break the breaker, and then break the isolation disconnecting link. The isolating switch is in operation linkage with the breaker switch, the isolating switch is firstly closed when power is transmitted, then the breaker switch is closed, and when power fails, the breaker switch is firstly separated, then the isolating switch is separated, so that the operation is safe and reliable. The isolating switch and the breaker switch are operated by the same operating handle, the isolating switch is firstly closed when power is transmitted, then the breaker switch is closed, and when power is cut off, the breaker switch is firstly opened, then the isolating switch is separated, so that the operation is safe and reliable. The electric power safety regulation is met, misoperation of personnel is prevented, and the personal and equipment are prevented from being damaged due to misoperation.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a linkage operating mechanism provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a linkage operation mechanism after installation according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a side view direction of a linkage operation mechanism after installation according to an embodiment of the present invention.
Icon: 100-fixing plates; 200-sliding grooves; 300-isolating a disconnecting link; 410-operating a handle; 420-a mechanism spindle; 430-a mechanism connection plate; 440-moving contact connecting pieces; 450-switch main link; 460-a switch separating brake deflector rod; 470-switching secondary link; 480-a switch closing deflector rod; 500-circuit breaker; 510-split handle.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, the linkage operation mechanism provided by the embodiment of the invention is used for linking the isolating switch 300 and the circuit breaker 500, the circuit breaking device comprises the linkage operation mechanism and the fixing plates 100, the number of the fixing plates 100 is two, and the two fixing plates 100 are respectively positioned at two sides of the isolating switch 300 and the circuit breaker 500; the linkage operation mechanism comprises a first action output end and a second action output end, and the first action output end and the second action output end respectively act on a moving contact of the isolation disconnecting link 300 and a switching handle 510 of the circuit breaker 500; specifically, the linkage operation mechanism includes an operation handle 410, a mechanism main shaft 420, a mechanism connection plate 430, a moving contact connection plate 440, a switch main connection rod 450, a switch opening and closing shift lever 460, a switch auxiliary connection rod 470 and a switch closing shift lever 480; the operating handle 410 is fixedly connected with the mechanism main shaft 420, and the operating handle 410 is used for driving the mechanism main shaft 420 to rotate around the axis thereof; the mechanism main shaft 420 is fixedly connected with a mechanism connecting plate 430; one end of the moving contact connecting piece 440 is hinged with the moving contact of the isolating switch 300, and the other end is hinged with the mechanism connecting plate 430; one end of the switch main connecting rod 450 is hinged with the mechanism connecting plate 430, and the other end is fixedly connected with the switch separating brake deflector 460; one end of the switch auxiliary connecting rod 470 is hinged with the switch main connecting rod 450, and the other end is fixedly connected with the switch separating brake deflector rod 460; the fixing plate 100 is provided with a shaft hole matched with the mechanism main shaft 420 so that the mechanism main shaft 420 is connected with the operation handle 410; the fixed plate 100 is provided with a chute 200, and the switch opening and closing deflector rod 460 and the switch closing deflector rod 480 are respectively and slidably connected in the chute 200. When power is transmitted, the linkage operation mechanism can firstly switch on the isolation disconnecting link 300 and then switch on the circuit breaker 500; when power failure occurs, the linkage operation mechanism can break the breaker 500, and then break the isolation disconnecting link 300. The isolation disconnecting link 300 and the breaker 500 are in linkage in switching operation, when power is transmitted, the isolation disconnecting link 300 is closed firstly, then the breaker 500 is closed, when power is cut off, the breaker 500 is opened firstly, then the isolation disconnecting link 300 is separated, and the operation is safe and reliable. The isolating switch 300 and the breaker 500 are operated by the same operating handle 410, when power is transmitted, the isolating switch 300 is closed firstly, then the breaker 500 is closed, when power is cut off, the breaker 500 is opened firstly, then the isolating switch 300 is separated, and the operation is safe and reliable. The electric power safety regulation is met, misoperation of personnel is prevented, and the personal and equipment are prevented from being damaged due to misoperation.
And (3) linkage operation description of an operation mechanism:
1. and (3) brake separation operation:
the operation handle 410 can rotate 180 degrees, 0 to 90 degrees clockwise, the operation handle 410 drives the mechanism main shaft 420 to rotate, and the mechanism main shaft 420 drives the mechanism connecting plate 430 to rotate. The switch main connecting rod 450 pushes the switch opening deflector 460 to move downwards, and the switch opening deflector 460 presses the switch opening handle 510 of the circuit breaker 500 to open the circuit breaker 500; in this process, the moving contact link 440 does not move, although it rotates, due to the fact that the moving contact does not complete its movement stroke, the disconnecting link 300 is not yet opened.
The operation handle 410 can rotate 180 degrees, 90 to 180 degrees clockwise, and the operation handle 410 is linked with the mechanism main shaft 420 and the mechanism connecting plate 430. The mechanism connecting plate 430 drives the moving contact connecting piece 440 to rotate, and the moving contact connecting piece 440 links the moving contact to open so as to separate the isolating knife switch 300. In this process, the switch main link 450 is rotated downward and moves in a circular arc, so that the vertical position of the switch opening lever 460 is not changed, and the opening and closing handle 510 of the circuit breaker 500 is not operated.
2. Closing operation:
the operation handle 410 can rotate 180 degrees and 180 to 90 degrees along the clock, the operation handle 410 is linked with the main shaft 420 of the mechanism, the connecting plate 430 of the mechanism and the moving contact connecting plate 440, and the moving contact connecting plate 440 is linked with the closing action of the moving contact, so that the isolation switch 300 is closed. The opening and closing handle 510 of the circuit breaker 500 does not act.
The operation handle 410 can be rotated 180 degrees against the clock, 90 to 0 degrees, and the operation handle 410 links the mechanism main shaft 420 and the mechanism connection plate 430. The switch main connecting rod 450 moves upwards to further pull the switch opening deflector 460, the switch auxiliary connecting rod 470 and the switch closing deflector 480, and the switch closing deflector 480 presses the opening and closing handle 510 of the molded case circuit breaker 500 upwards to switch on and off the circuit breaker 500; the moving contact does not act in the process.
1. The operation of the isolating switch 300 by the operating mechanism and the switching process of the molded case circuit breaker 500 are realized, the same operating handle 410 is operated to link, the isolating switch 300 is closed firstly, and then the circuit breaker 500 is switched on and off; the breaker 500 is firstly broken, and then the disconnecting link 300 is further separated.
2. The operation of the isolating switch 300 by the operating mechanism and the opening and closing process of the molded case circuit breaker 500 are realized, the same operating handle 410 is operated to be linked, the opening and closing process of the isolating switch 300 is operated, and the molded case circuit breaker 500 does not act.
3. The operation mechanism is used for operating the isolation disconnecting link 300 to realize the switching process of the molded case circuit breaker 500, the same operation handle 410 is used for operating linkage, and the isolation disconnecting link 300 does not act when the molded case circuit breaker 500 is operated to switch on or off.
The isolating switch 300 and the circuit breaker 500 are linked in a multi-connecting-rod mode, and sequential actions of the isolating switch 300 and the circuit breaker 500 are realized by setting reasonable arm length and angle relation among all structures.
In order to increase the stability of the linkage operation mechanism, the number of the mechanism connecting plates 430, the switch main link 450 and the switch auxiliary link 470 is at least two. The two mechanism connecting plates 430, the switch main link 450 and the switch auxiliary link 470 are arranged at intervals along the left-right direction, so that the shaking of the mechanism main shaft 420 during rotation is reduced.
Specifically, one end of the moving contact connecting piece 440 is provided with a slotted hole, and is connected with the moving contact of the isolating switch 300 through a movable pin, and the other end is provided with a circular hole, and is connected with the mechanism connecting plate 430 through a movable pin.
One end of the switch main connecting rod 450 is provided with a round hole which is connected with the mechanism connecting plate 430 through a movable pin, and the other end is provided with threads which are connected with the switch separating brake deflector 460 through threads.
One end of the switch auxiliary connecting rod 470 is provided with a round hole matched with the shaft hole of the switch main connecting rod 450, and the other end is provided with threads connected with the switch opening deflector rod 460 in a threaded manner.
In order to increase the rotation smoothness of the mechanism main shaft 420, the linkage operation mechanism includes two fixed bearings, which are respectively disposed on the two fixed plates 100, and which are used to support the mechanism main shaft 420.
The isolating switch 300 and the circuit breaker 500 are electrically connected through copper pillars, so that the conductivity is better.
The operation handle 410 is provided with a rubber insulating sleeve, thereby further increasing safety.
The mechanism main shaft 420 is welded with the mechanism connecting plate 430, so that the structure is firmer.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention for illustrating the technical solution of the present invention, but not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that the present invention is not limited thereto: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. A linkage operating mechanism for linking an isolating knife switch and a circuit breaker, comprising: the number of the fixing plates is two, and the two fixing plates are respectively positioned at two sides of the isolating switch and the breaker;
the linkage operation mechanism comprises a first action output end and a second action output end, and the first action output end and the second action output end respectively act on a moving contact of the isolation disconnecting link and a switching handle of the circuit breaker; when power is transmitted, the linkage operation mechanism can firstly switch on the isolation disconnecting link and then switch on the circuit breaker; when power is off, the linkage operation mechanism can break the breaker, and then break the isolation disconnecting link;
the linkage operation mechanism comprises an operation handle, a mechanism main shaft, a mechanism connecting plate, a moving contact connecting piece, a switch main connecting rod, a switch opening and closing deflector rod, a switch auxiliary connecting rod and a switch closing deflector rod;
the operating handle is fixedly connected with the mechanism main shaft and is used for driving the mechanism main shaft to rotate around the axis of the mechanism main shaft;
the mechanism main shaft is fixedly connected with the mechanism connecting plate;
one end of the moving contact connecting piece is hinged with the moving contact of the isolating switch, and the other end of the moving contact connecting piece is hinged with the mechanism connecting plate;
one end of the switch main connecting rod is hinged with the mechanism connecting plate, and the other end of the switch main connecting rod is fixedly connected with the switch opening deflector rod;
one end of the switch auxiliary connecting rod is hinged with the switch main connecting rod, and the other end of the switch auxiliary connecting rod is fixedly connected with the switch separating deflector rod;
the fixed plate is provided with a shaft hole matched with the mechanism main shaft so as to connect the mechanism main shaft with the operating handle;
the fixed plate is provided with a chute, and the switch opening deflector rod and the switch closing deflector rod are respectively and slidably connected in the chute;
the operating handle rotates 180 degrees clockwise, and rotates 0 to 90 degrees, the operating handle drives the mechanism main shaft to rotate, and the mechanism main shaft drives the mechanism connecting plate to rotate; the main connecting rod of the switch pushes the switch opening and closing shifting lever to move downwards, and the switch opening and closing handle of the breaker is extruded by the switch opening and closing shifting lever, so that the breaker is opened; in the process, the moving contact connecting piece rotates, but the moving stroke is not completed, so that the moving contact does not act, and the isolating knife switch is not separated yet;
the operating handle rotates 180 degrees clockwise, 90 to 180 degrees of rotation, and the operating handle links the main shaft of the mechanism and the mechanism connecting plate; the mechanism connecting plate drives the moving contact connecting piece to rotate, and the moving contact connecting piece links the moving contact to break the switch, so that the isolation switch is broken; in the process, the main connecting rod of the switch rotates to the lower part and moves in an arc manner, so that the vertical position of the switch opening and closing deflector rod of the switch is not changed, and the opening and closing handle of the circuit breaker is not actuated;
the operating handle rotates 180 degrees and 180 to 90 degrees along the clock, and the operating handle links the main shaft of the mechanism, the mechanism connecting plate and the moving contact connecting piece, and the moving contact connecting piece links the closing action of the moving contact, so that the isolation disconnecting link is closed; the breaker opening and closing handle cannot act in the process;
the operating handle rotates 180 degrees and 90 to 0 degrees against the clock, and the operating handle links the main shaft of the mechanism and the mechanism connecting plate; the main connecting rod of the switch moves upwards to further pull the switch opening deflector rod, the auxiliary connecting rod of the switch and the switch closing deflector rod, and the switch closing deflector rod of the switch is used for upwards extruding the opening and closing handle of the molded case circuit breaker to enable the circuit breaker to be closed; the moving contact does not act in the process.
2. The linkage operation mechanism according to claim 1, wherein the number of the mechanism connecting plates, the switch main link and the switch sub link is at least two.
3. The linkage operation mechanism according to claim 1, wherein one end of the moving contact connecting piece is provided with a long round hole clamping hole, the long round hole clamping hole is connected with the moving contact of the isolation disconnecting link through a movable pin, and the other end of the moving contact connecting piece is provided with a round hole, and the round hole is connected with the mechanism connecting plate through the movable pin.
4. The linkage operation mechanism according to claim 1, wherein one end of the switch main connecting rod is provided with a round hole, the round hole is connected with the mechanism connecting plate through a movable pin, and the other end of the switch main connecting rod is provided with threads and is connected with the switch separating brake deflector rod through threads.
5. The linkage operation mechanism according to claim 1, wherein one end of the switch auxiliary connecting rod is provided with a round hole matched with the shaft hole of the switch main connecting rod, and the other end of the switch auxiliary connecting rod is provided with threads connected with the switch separating brake deflector rod in a threaded manner.
6. The linkage operation mechanism according to claim 1, wherein the linkage operation mechanism comprises two fixed bearings, the two fixed bearings are respectively provided on the two fixed plates, and the two fixed bearings are used for supporting the mechanism main shaft.
7. The linkage operation mechanism according to claim 1, wherein a plurality of connecting rods are provided between the two fixing plates for fixedly connecting the two fixing plates.
8. The linkage operation mechanism according to claim 1, wherein a rubber insulating sleeve is provided on the operation handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396694.3A CN108461333B (en) | 2018-04-27 | 2018-04-27 | Linkage operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396694.3A CN108461333B (en) | 2018-04-27 | 2018-04-27 | Linkage operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108461333A CN108461333A (en) | 2018-08-28 |
| CN108461333B true CN108461333B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396694.3A Active CN108461333B (en) | 2018-04-27 | 2018-04-27 | Linkage operating mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114256021B (en) * | 2021-12-10 | 2023-07-21 | 国网河北省电力有限公司元氏县供电分公司 | Automatic electric brake capable of preventing false touch |
| CN117810020B (en) * | 2023-12-31 | 2024-07-05 | 俊郎电气有限公司 | Outdoor high-voltage alternating current vacuum circuit breaker |
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| WO2017190490A1 (en) * | 2016-05-05 | 2017-11-09 | 国家电网公司 | High-voltage switch and circuit breaker unit thereof |
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| WO2015070731A1 (en) * | 2013-11-15 | 2015-05-21 | 国家电网公司 | Circuit breaker closing resistor tripping mechanism, and circuit breaker using same |
| WO2017190490A1 (en) * | 2016-05-05 | 2017-11-09 | 国家电网公司 | High-voltage switch and circuit breaker unit thereof |
| CN106710950A (en) * | 2016-12-30 | 2017-05-24 | 华仪电气股份有限公司 | Interlocking operation mechanism and high-voltage switchgear therewith |
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