CN112509848B - Electric operating device of grounding switch for ring main unit test - Google Patents
Electric operating device of grounding switch for ring main unit test Download PDFInfo
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- CN112509848B CN112509848B CN202011359561.2A CN202011359561A CN112509848B CN 112509848 B CN112509848 B CN 112509848B CN 202011359561 A CN202011359561 A CN 202011359561A CN 112509848 B CN112509848 B CN 112509848B
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- grounding
- main unit
- ring main
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- 238000012360 testing method Methods 0.000 title abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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Abstract
The application relates to an electric operating device of a grounding switch for ring main unit test. A earthing switch electrically operated device for looped netowrk cabinet is experimental, include: the driving mechanism is provided with an output shaft, and the output shaft is used for outputting torque to drive a grounding operation shaft of the grounding switch to perform switching-on and switching-off actions; the control circuit is used for controlling the driving mechanism to rotate positively and negatively; the mounting bracket comprises a cabinet body fixing structure, wherein the cabinet body fixing structure is used for being detachably fixed on a cabinet body of the ring main unit; the driving mechanism is fixed on the mounting bracket, and an output shaft of the driving mechanism faces to an operation end of the grounding operation shaft on the ring main unit; the earthing switch electric operation device also comprises a transfer shaft, wherein the transfer shaft is provided with an input end and an output end; the input end is used for being detachably connected with an output shaft of the driving mechanism and transmitting torque; and the output end is used for being detachably connected with the operating end of the grounding operating shaft and transmitting torque. According to the scheme, the problem that manual operation of the grounding switch is time-consuming and labor-consuming when the existing ring main unit type test is carried out can be solved.
Description
Technical Field
The application relates to an electric operating device of a grounding switch for ring main unit test.
Background
The prior ring main unit product has the advantages that the grounding switch is a three-station switch, and the switching-on and switching-off actions are generally carried out by manual operation of operators during operation. The structure of the grounding operation shaft in different ring main units is different, for example, a toothed shaft with a toothed structure at the operation end, a hexagonal shaft with a hexagonal structure at the operation end, and two stop pins with two stop pins respectively arranged at two ends of the outer peripheral surface along the diameter direction of the shaft side are arranged at the operation end. When the switch-on/off operation of the grounding switch is performed, an operator is required to connect the corresponding manual operation handle to the operation end of the grounding operation shaft, and further drive the grounding operation shaft to rotate.
When the ring main unit is subjected to type test, particularly mechanical life test, a plurality of switching-on and switching-off operations are required. The main switch has an electric opening and closing function, so that automatic operation can be realized, but the opening and closing operation of the grounding switch needs to be manually operated frequently, so that the test process is time-consuming and labor-consuming, and the labor intensity is high. Moreover, when the test is performed, the time of opening and closing the grounding switch needs to be controlled, and the manual operation cannot accurately control the time of opening and closing the grounding switch, so that the test effect is affected. Furthermore, due to the fact that the voltage level of the ring main unit is high, certain dangers exist in manual operation.
Disclosure of Invention
The application aims to provide an electric operating device of a grounding switch for ring main unit test, which solves the problem that manual operation of the grounding switch is time-consuming and labor-consuming in the existing ring main unit type test.
The application discloses an electric operating device of a grounding switch for ring main unit test, which adopts the following technical scheme:
a earthing switch electrically operated device for looped netowrk cabinet is experimental, include:
the driving mechanism is provided with an output shaft (32), and the output shaft (32) is used for outputting torque to drive a grounding operation shaft of the grounding switch to perform switching-on and switching-off actions;
the control circuit is used for controlling the driving mechanism to rotate positively and negatively;
the mounting bracket (20) comprises a cabinet body fixing structure, wherein the cabinet body fixing structure is used for being detachably fixed to a cabinet body of the ring main unit (10);
the driving mechanism is fixed on the mounting bracket (20), and an output shaft (32) of the driving mechanism faces to an operating end of a grounding operating shaft on the ring main unit (10);
the earthing switch electric operation device further comprises a transfer shaft (40), wherein the transfer shaft (40) is provided with an input end and an output end;
an input for releasable connection to an output shaft (32) of the drive mechanism and for transmitting torque;
and the output end is used for being detachably connected with the operating end of the grounding operating shaft and transmitting torque.
The beneficial effects are that: by adopting the technical scheme, the driving mechanism can be fixed on the cabinet body through the mounting bracket, and the input end and the output end of the switching shaft can be detachably connected with the driving mechanism and the grounding operation shaft respectively and transmit torque, so that the driving of the grounding operation shaft by the driving mechanism is realized, and the grounding operation shaft can be controlled to rotate through the driving mechanism under the control of the control circuit, so that the automatic switching-on and switching-off operation is realized; compared with the prior art, the scheme can solve the problem that manual operation of the grounding switch is time-consuming and labor-consuming, effectively lightens labor intensity, improves test efficiency, can accurately control the opening and closing time of the grounding switch, and can also avoid safety risks during manual operation.
As a preferred technical scheme: the input end of the switching shaft (40) is detachably connected with the output shaft (32) of the driving mechanism in a plug-in fit mode.
The beneficial effects are that: by adopting the technical scheme, the assembly and disassembly are convenient, and the grounding operation shafts with different transmission modes are convenient to adapt.
As a preferred technical scheme: a circle of external teeth (41) are uniformly distributed on the outer peripheral surface of the input end of the switching shaft (40), a plug hole is formed in the output shaft (32) of the driving mechanism, internal teeth are formed in the hole wall of the plug hole and are used for being matched with the external teeth (41) inserted into the plug hole.
The beneficial effects are that: by adopting the technical scheme, reliable transmission of the switching shaft is guaranteed.
As a preferred technical scheme: the cabinet body fixing structure on the mounting bracket (20) is a fixing folded edge (22), and the fixing folded edge (22) forms a flange structure and is used for being fixed to the cabinet body of the ring main unit (10) through bolts.
The beneficial effects are that: the technical scheme is simple in structure and convenient to manufacture and assemble.
As a preferred technical scheme: the mounting bracket (20) is provided with an avoidance space, and the avoidance space is provided with an opening facing the ring main unit (10) when in use and is used for providing a mounting space for the adapter shaft (40).
The beneficial effects are that: by adopting the technical scheme, the installation of the switching shaft can be conveniently realized.
As a preferred technical scheme: the mounting bracket (20) comprises a U-shaped main body (21), and the fixing folded edge (22) is arranged at the edge of the opening side of the U-shaped main body (21) to form a U-shaped structure integrally.
The beneficial effects are that: by adopting the technical scheme, the structure is simpler, and the mounting space can be provided by the adapter shaft (40) more easily.
As a preferred technical scheme: the U-shaped main body (21) is provided with a rib plate (23), and the rib plate (23) extends along the U-shaped outline.
The beneficial effects are that: by adopting the technical scheme, the rigidity of the U-shaped main body can be improved, and the firm fixation of the driving mechanism in the action process is ensured.
As a preferred technical scheme: the driving mechanism is a worm gear motor (30).
The beneficial effects are that: the driving mechanism is easy to realize by adopting a worm gear motor, and the technology is mature.
As a preferred technical scheme: the earthing switch electric operation device comprises a control circuit, wherein the control circuit comprises a closing relay and a separating brake relay, and the closing relay and the separating brake relay are used for controlling forward and reverse rotation of a driving mechanism;
the power supply circuit of the closing relay and the opening relay is connected with a main switch travel switch (63) in series, and the main switch travel switch (63) is used for being opened when the main switch of the ring main unit (10) is closed when the main switch of the ring main unit (10) is opened.
The beneficial effects are that: by adopting the technical scheme, the earthing switch operation in the closing state of the main switch can be avoided, and the safety is ensured.
As a preferred technical scheme: the grounding switch electric operation device comprises a control circuit, and a switching-off control switch and a switching-on control switch of the control circuit both comprise remote control switches.
The beneficial effects are that: by adopting the technical scheme, wireless operation can be realized, and the safety risk during manual operation is better avoided.
Drawings
FIG. 1 is a schematic view of an electrical operating device for a grounding switch for ring main unit test in accordance with the present application;
FIG. 2 is a top view of the electrically operated device of the grounding switch of FIG. 1 for ring main unit testing;
FIG. 3 is a schematic diagram of a worm gear motor in an electrically operated device for a grounding switch for ring main unit test;
FIG. 4 is a schematic view of the structure of the adapter shaft in the electrically operated device of the grounding switch for ring main unit test;
FIG. 5 is a schematic view of the structure of a mounting bracket in an electrically operated device for a grounding switch for ring main unit test;
FIG. 6 is a schematic circuit diagram of an electrically operated device for a grounding switch for ring main unit testing;
the names of the corresponding components in the figures are: 10. a ring main unit; 11. an instrument box; 12. a mechanism chamber; 13. an air box; 14. a cable chamber; 20. a mounting bracket; 21. a U-shaped body; 22. fixing the folded edges; 23. rib plates; 24. a large round hole; 25. a motor avoiding opening; 30. a worm gear motor; 31. a motor; 32. an output shaft; 33. a worm gear speed reducing mechanism; 34. a fixing hole; 40. a transfer shaft; 41. external teeth; 50. a ground position travel switch; 61. a remote switch for opening the gate; 62. a switching-on remote control switch; 63. and a main switch travel switch.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the application, i.e., the embodiments described are merely some, but not all, of the embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It is noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises a depicted element.
In the description of the present application, the terms "mounted," "connected," "coupled," and "connected," as may be used broadly, and may be connected, for example, fixedly, detachably, or integrally, unless otherwise specifically defined and limited; 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 application can be understood by those skilled in the art in specific cases.
In the description of the present application, unless explicitly stated and limited otherwise, the term "provided" as may occur, for example, as an object of "provided" may be a part of a body, may be separately arranged from the body, and may be connected to the body, and may be detachably connected or may be non-detachably connected. The specific meaning of the above terms in the present application can be understood by those skilled in the art in specific cases.
The present application is described in further detail below with reference to examples.
Embodiment 1 of the earthing switch electric operation apparatus for ring main unit test in the present application:
as shown in fig. 1, the electric operating device of the grounding switch for the ring main unit test is used for being mounted on the main body of the ring main unit 10, and comprises a mounting bracket 20, a worm gear motor 30 and a transfer shaft 40. The corresponding ring main unit 10 comprises a main body, an instrument box 11, a mechanism chamber 12, an air box 13 and a cable chamber 14 are arranged on the main body, and a grounding switch operation shaft is arranged at the mechanism chamber 12 and can be exposed on the front side surface of the main body when grounding switch operation is needed. The specific structure of ring main unit 10 is prior art and will not be described in detail herein.
As shown in fig. 2 and 5, the mounting bracket 20 of the electric operating device of the grounding switch includes a U-shaped main body 21, and a fixing flange 22 is disposed at an opening side edge of the U-shaped main body 21, and the whole is in a shape of a Chinese character 'ji', so that an avoidance space can be formed, and the avoidance space has an opening facing the ring main unit 10 when in use, so as to provide a mounting space for the adapter shaft 40. The fixing flange 22 forms a flange structure, on which four long holes are provided for fixing to the cabinet by bolts. The U-shaped main body 21 of the mounting bracket 20 is provided with the rib plates 23, and the rib plates 23 extend along the U-shaped outline and are used for improving the rigidity of the U-shaped main body 21 and ensuring the firm fixation of the driving mechanism in the action process. As shown in fig. 5, the u-shaped main body 21 is further provided with a motor avoiding opening 25 for avoiding the worm gear motor 30.
The worm gear motor 30 is a market purchase part, as shown in fig. 1, 2 and 3, and comprises a motor 31 body, an output shaft 32 and a worm gear reduction mechanism 33, wherein the worm gear reduction mechanism 33 is used for reducing the power of the motor 31, increasing the torque and then transmitting the power to the output shaft 32, the output shaft 32 is used for outputting driving torque to drive a grounding operation shaft of a grounding switch to perform opening and closing actions, and the whole worm gear motor 30 forms a driving mechanism. Four fixing holes 34 are arranged on the shell of the worm gear speed reducing mechanism 33, and corresponding mounting holes are arranged on the U-shaped main body 21 and are fixedly connected with the worm gear motor 30. The output shaft 32 of the worm gear motor 30 is provided with a socket hole, and the wall of the socket hole is provided with internal teeth (not shown in the figure) for realizing the output of torque. Correspondingly, four connecting holes are formed in the U-shaped main body 21 of the mounting bracket 20, a large round hole 24 is formed in the center of each connecting hole, and the large round hole 24 corresponds to the adapter shaft 40.
As shown in fig. 4, the adapter shaft 40 constitutes an adapter for adapting to the operating ends of different ground operating shafts. The adapter shaft 40 is provided with an input end and an output end, and a circle of external teeth 41 are uniformly distributed on the outer peripheral surface of the input end and are used for being in plug-in fit with the internal teeth of the plug-in holes on the output shaft 32 and transmitting torque; the end face of the output end is provided with a tooth-shaped structure, an inner hexagon or a stop pin groove (not shown in the figure) which is respectively used for being in plug-in fit with a grounding operation shaft in the form of a tooth-shaped shaft, a hexagon shaft or a stop pin shaft and transmitting torque.
The electric operating device of the grounding switch further comprises a control circuit, wherein the control circuit is shown in fig. 6 and comprises a switching-on power supply loop, a switching-off power supply loop, a switching-on control loop and a switching-off control loop. The closing control loop and the opening control loop are arranged in parallel, a main switch travel switch 63 is connected in series on the power supply circuit of the closing control loop and the opening control loop, and the main switch travel switch 63 is used for being opened when the main switch of the ring main unit 10 is closed when the main switch of the ring main unit 10 is opened. The switching-on control loop comprises a switching-on relay KM2, the switching-off control loop comprises a switching-off relay KM1, and the switching-on relay KM2 and the switching-off relay KM1 are used for controlling the worm gear motor 30 to rotate positively and negatively, and switching-on and switching-off are carried out during forward rotation and reverse rotation. The switching-on control loop is connected with a normally closed contact KA1 of the switching-off relay in series, and the switching-off control loop is connected with a normally closed contact KA2 of the switching-on relay in series. In addition, a ground position travel switch 50 is arranged at the ground operation shaft, the ground position travel switch 50 is provided with a normally open contact S1 and a normally closed contact S2, and the normally open contact S1 and the normally closed contact S2 are respectively connected in series with the opening control loop and the closing control loop. The opening control switch of the control circuit comprises a manual opening switch SB1 and an opening remote control switch 61, and the closing control switch comprises a manual closing switch SB2 and a closing remote control switch 62, so that remote control opening and closing can be realized. Other components of the control circuit are conventional in the art and will not be described in detail herein with reference to fig. 6.
Before the test, firstly, the mounting bracket 20 is mounted on the cabinet body of the ring main unit 10 through bolts, the bolts are not fastened firstly, so that a sufficient distance is reserved between the mounting bracket 20 and the cabinet body for the adapter shaft 40 to be installed, and at the moment, the adapter shaft 40 is matched with a grounding operation shaft with an adaptive operation end through a large round hole 24 on the mounting bracket 20; then, the worm wheel motor 30 is mounted on the mounting bracket 20, and after the internal teeth on the output shaft 32 of the worm wheel motor 30 are engaged with the adapter shaft 40, the mounting screw is fastened, so that the worm wheel motor 30 is fastened on the mounting bracket 20.
In the test, a power supply which is consistent with the voltage of the worm gear motor 30 is provided for the electric operating device of the grounding switch, the corresponding relay acts by switching on the corresponding opening control loop or closing control loop, the on-off and the forward rotation of the worm gear motor 30 are controlled by the contact on-off of the relay, and the worm gear motor 30 can be timely powered off when the operating shaft of the grounding switch rotates to the corresponding position by means of the grounding position travel switch 50. The main switch travel switch 63 is connected in series in the electric circuit, and the worm wheel motor 30 can only act when the main switch is at the opening position.
In the above embodiment, the mounting bracket 20 has a U-shaped structure, and in other embodiments, the mounting bracket 20 may have a frame structure. In addition, in the above embodiment, the input end of the adapter shaft 40 is provided with the external teeth 41, and is detachably connected with the output shaft 32 of the driving mechanism in a form of a socket fit, and in other embodiments, the adapter shaft 40 may be connected with the driving structure in other forms, for example, a flange connection, a key connection, and the like.
The above description is only a preferred embodiment of the present application, and the patent protection scope of the present application is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present application should be included in the protection scope of the present application.
Claims (10)
1. A earthing switch electric operating device for looped netowrk cabinet is experimental, its characterized in that includes:
the driving mechanism is provided with an output shaft (32), and the output shaft (32) is used for outputting torque to drive a grounding operation shaft of the grounding switch to perform switching-on and switching-off actions;
the control circuit is used for controlling the driving mechanism to rotate positively and negatively;
the mounting bracket (20) comprises a cabinet body fixing structure, wherein the cabinet body fixing structure is used for being detachably fixed to a cabinet body of the ring main unit (10);
the driving mechanism is fixed on the mounting bracket (20), and an output shaft (32) of the driving mechanism faces to an operating end of a grounding operating shaft on the ring main unit (10);
the earthing switch electric operation device further comprises a transfer shaft (40), wherein the transfer shaft (40) is provided with an input end and an output end;
an input for releasable connection to an output shaft (32) of the drive mechanism and for transmitting torque;
and the output end is used for being detachably connected with the operating end of the grounding operating shaft and transmitting torque.
2. The electrically operated device of a grounding switch according to claim 1, characterized in that the input end of the adapter shaft (40) is detachably connected to the output shaft (32) of the drive mechanism in the form of a socket fit.
3. The electric operating device for the grounding switch according to claim 2, wherein a ring of external teeth (41) are uniformly distributed on the outer peripheral surface of the input end of the transfer shaft (40), a plug hole is arranged on the output shaft (32) of the driving mechanism, internal teeth are arranged on the wall of the plug hole, and the internal teeth are used for being matched with the external teeth (41) inserted into the plug hole.
4. A earthing switch electrically operated device according to claim 1, 2 or 3, characterized in that the cabinet fixing structure on the mounting bracket (20) is a fixing flange (22), the fixing flange (22) forming a flange structure for fixing to the cabinet of the ring main unit (10) by bolts.
5. The electrically operated device of a grounding switch according to claim 4, wherein the mounting bracket (20) is provided with an avoidance space, the avoidance space having an opening facing the ring main unit (10) in use for providing a mounting space for the adapter shaft (40).
6. The electric operating device of a grounding switch according to claim 5, characterized in that said mounting bracket (20) comprises a U-shaped body (21), said fixing flange (22) being provided at an opening side edge of the U-shaped body (21), forming a figure-like structure as a whole.
7. The electric operating device of a grounding switch according to claim 6, characterized in that a rib plate (23) is provided on the U-shaped body (21), said rib plate (23) extending along the contour of the U-shape.
8. A ground switch electrically operated device according to claim 1 or 2 or 3, characterized in that the drive mechanism is a worm gear motor (30).
9. A ground switch electrically operated device as claimed in claim 1, 2 or 3, wherein said control circuit comprises a closing relay and a separating relay for controlling the forward and reverse rotation of the drive mechanism;
the power supply circuit of the closing relay and the opening relay is connected with a main switch travel switch (63) in series, and the main switch travel switch (63) is used for being opened when the main switch of the ring main unit (10) is closed when the main switch of the ring main unit (10) is opened.
10. A ground switch electrically operated device as claimed in claim 1, 2 or 3, wherein the opening control switch and the closing control switch of the control circuit each comprise a remote control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359561.2A CN112509848B (en) | 2020-11-27 | 2020-11-27 | Electric operating device of grounding switch for ring main unit test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359561.2A CN112509848B (en) | 2020-11-27 | 2020-11-27 | Electric operating device of grounding switch for ring main unit test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112509848A CN112509848A (en) | 2021-03-16 |
| CN112509848B true CN112509848B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011359561.2A Active CN112509848B (en) | 2020-11-27 | 2020-11-27 | Electric operating device of grounding switch for ring main unit test |
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| Country | Link |
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| CN (1) | CN112509848B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008123727A (en) * | 2006-11-09 | 2008-05-29 | Toshiba Corp | Switch and switching mechanism |
| WO2009003345A1 (en) * | 2007-07-05 | 2009-01-08 | Beijing Sojo Electric Co., Ltd. | Solid insulation full-closed loop networt cabinet |
| EP2346055A1 (en) * | 2010-01-13 | 2011-07-20 | Kabushiki Kaisha Toshiba | Switch operating device |
| CN103065855A (en) * | 2012-12-14 | 2013-04-24 | 江苏南瑞帕威尔电气有限公司 | High-tension switch cabinet earthing switch electric operating device |
| CN203882854U (en) * | 2014-04-09 | 2014-10-15 | 莱福士电力电子设备（深圳）有限公司 | Electric isolation grounding switch of ring main unit and ring main unit |
| WO2018086456A1 (en) * | 2016-11-14 | 2018-05-17 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Double-break isolating switch having grounding linkage |
| CN108198709A (en) * | 2018-02-26 | 2018-06-22 | 广东炜创电气有限公司 | Surface in the on-load switch mechanism of middle pressure AC distribution ring main unit is chain |
| CN110993400A (en) * | 2019-11-08 | 2020-04-10 | 河南平高通用电气有限公司 | Switch cabinet and electric ground knife locking control method of switch cabinet |
| CN111403223A (en) * | 2020-04-29 | 2020-07-10 | 库柏爱迪生(平顶山)电子科技有限公司 | Load switch system capable of realizing electric on-off and electric grounding |
-
2020
- 2020-11-27 CN CN202011359561.2A patent/CN112509848B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008123727A (en) * | 2006-11-09 | 2008-05-29 | Toshiba Corp | Switch and switching mechanism |
| WO2009003345A1 (en) * | 2007-07-05 | 2009-01-08 | Beijing Sojo Electric Co., Ltd. | Solid insulation full-closed loop networt cabinet |
| EP2346055A1 (en) * | 2010-01-13 | 2011-07-20 | Kabushiki Kaisha Toshiba | Switch operating device |
| CN103065855A (en) * | 2012-12-14 | 2013-04-24 | 江苏南瑞帕威尔电气有限公司 | High-tension switch cabinet earthing switch electric operating device |
| CN203882854U (en) * | 2014-04-09 | 2014-10-15 | 莱福士电力电子设备（深圳）有限公司 | Electric isolation grounding switch of ring main unit and ring main unit |
| WO2018086456A1 (en) * | 2016-11-14 | 2018-05-17 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Double-break isolating switch having grounding linkage |
| CN108198709A (en) * | 2018-02-26 | 2018-06-22 | 广东炜创电气有限公司 | Surface in the on-load switch mechanism of middle pressure AC distribution ring main unit is chain |
| CN110993400A (en) * | 2019-11-08 | 2020-04-10 | 河南平高通用电气有限公司 | Switch cabinet and electric ground knife locking control method of switch cabinet |
| CN111403223A (en) * | 2020-04-29 | 2020-07-10 | 库柏爱迪生(平顶山)电子科技有限公司 | Load switch system capable of realizing electric on-off and electric grounding |
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| Publication number | Publication date |
|---|---|
| CN112509848A (en) | 2021-03-16 |
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