CN111739758B - Interchange regulation nature high voltage earthing switch - Google Patents
Interchange regulation nature high voltage earthing switch Download PDFInfo
- Publication number
- CN111739758B CN111739758B CN202010607454.0A CN202010607454A CN111739758B CN 111739758 B CN111739758 B CN 111739758B CN 202010607454 A CN202010607454 A CN 202010607454A CN 111739758 B CN111739758 B CN 111739758B
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- grounding switch
- contact sleeve
- fixed
- moving contact
- switch
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- 230000003068 static effect Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
- H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
-
- 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
- H01H31/003—Earthing switches
-
- 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
- H01H31/023—Base and stationary contacts mounted thereon
Landscapes
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an interchange adjustable high-voltage grounding switch, which relates to the technical field of power equipment and comprises an isolating switch base, wherein a clamping mechanism clamped with a grounding switch static contact sleeve is arranged on the upper side wall of a grounding switch moving contact sleeve; according to the invention, the telescopic effect of the driving mechanism on the telescopic mechanism is realized through rotation of the crank handle which is rotatably arranged, so that the telescopic mechanism can drive the grounding switch moving contact sleeve to vertically ascend or descend relative to the guide rod, namely, the grounding switch moving contact sleeve can ascend and be inserted into the grounding switch static contact sleeve to realize closing action, the grounding switch moving contact sleeve can descend and be drawn out of the grounding switch static contact sleeve to realize opening action, the closing and opening actions are stably and firmly operated, and the reliability of the switching action of the device is effectively improved.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an interchangeable adjustable high-voltage grounding switch.
Background
The grounding switch is a mechanical grounding device which releases static electricity of the maintained equipment and a return circuit and ensures the personal safety of maintenance personnel during power failure maintenance. It can withstand current for a certain time in abnormal situations, such as a short circuit, but does not pass load current in normal situations, it is usually part of an isolating switch.
The patent with the publication number of CN 105513849B discloses a grounding switch, including frame, moving contact, static contact and moving contact drive arrangement, moving contact and static contact set up its characterized in that in pairs: the moving contact driving device drives the moving contact to move linearly relative to the fixed contact; the moving contact driving device comprises a moving contact mounting seat, a guide rail and a mounting seat driving mechanism, wherein the moving contact is fixedly arranged on the moving contact mounting seat, a guide extension rod is arranged on the moving contact mounting seat, one end of the guide extension rod is fixed on the moving contact mounting seat, the other end of the guide extension rod is provided with an upper lantern ring and a lower lantern ring which slide on the guide rail, so that the moving contact mounting seat slides on the guide rail, and the mounting seat driving mechanism drives the moving contact mounting seat to reciprocate along the guide rail; the mounting seat driving mechanism comprises a main rotating shaft, the main rotating shaft is rotatably arranged in the rack and can rotate towards the direction of the fixed contact relative to the movable contact, a main rotating arm which synchronously rotates is arranged on the peripheral surface of the main rotating shaft, a matching groove which is vertical to the moving direction of the movable contact is arranged on the movable contact mounting seat, a matching block is arranged at the other end of the main rotating arm relative to the main rotating shaft, and the matching block is limited in the matching groove and can slide along the matching groove. Although the grounding switch is disclosed, the reliability of the grounding switch is poor in the using process, and stable switching-on and switching-off operations cannot be realized.
Disclosure of Invention
The present invention is directed to a high voltage grounding switch with interchangeable regulation to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an exchange regulation nature high pressure earthing switch, includes the isolator base, is equipped with the isolator contact seat on the isolator base, and isolator contact seat one side is fixed with the earthing switch static contact sleeve of vertical setting, and earthing switch static contact sleeve below is equipped with vertical earthing switch moving contact sleeve that corresponds, lateral wall is equipped with the latch mechanism with earthing switch static contact sleeve joint on the earthing switch moving contact sleeve, rotate on the isolator base and install the crank, be connected with actuating mechanism on the crank, the vertical guide arm that supplies earthing switch moving contact sleeve to cup joint that is fixed with on the isolator base, the last telescopic machanism that is used for promoting the vertical gliding of earthing switch moving contact sleeve that is connected with of actuating mechanism.
As a modified scheme of the invention: the driving mechanism is coaxially fixed with the hand crank. And the worm is in meshed connection with a worm wheel in transmission connection with the telescopic mechanism.
As a modified scheme of the invention: the telescopic mechanism comprises a transmission plate fixed on the worm wheel, and a connecting rod is hinged between the transmission plate and the grounding switch moving contact sleeve.
As a modified scheme of the invention: telescopic machanism is still including articulating the rotation post on the guide arm, rotates the cover and establishes and be fixed with the lagging, the cover is equipped with the spring coil that one end and lagging are fixed on rotating the post, and the spring coil other end is fixed with the lantern ring, the bar slotted hole has been seted up on the driving plate, and slidable mounting has the slip fixture block of joint on the driving plate in the bar slotted hole, be fixed with the fixed column that supplies the lantern ring to cup joint on the slip fixture block.
As a modified scheme of the invention: the grounding switch moving contact sleeve is characterized in that a connecting plate is fixed on the side wall of the grounding switch moving contact sleeve, a butting column horizontally penetrates through the connecting plate, a limiting plate is fixed at the end of the butting column, a limiting spring sleeved on the butting column is fixed between the limiting plate and a guide rod, and a plurality of arc grooves are formed in the side wall of the guide rod at equal intervals.
As a modified scheme of the invention: the clamping mechanism comprises a butting block which is slidably mounted on the side wall of the grounding switch moving contact sleeve, a butting spring is fixedly connected between the butting block and the grounding switch moving contact sleeve, and a wedge surface is formed in the butting block.
As a modified scheme of the invention: the isolator base below is equipped with the supporting seat, slides on the supporting seat and inlays to establish and install the traveller who fixes in isolator base bottom, fixedly connected with damping spring between traveller and the supporting seat.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the telescopic effect of the driving mechanism on the telescopic mechanism is realized through rotation of the crank handle which is rotatably arranged, so that the telescopic mechanism can drive the grounding switch moving contact sleeve to vertically ascend or descend relative to the guide rod, namely, the grounding switch moving contact sleeve can ascend and be inserted into the grounding switch static contact sleeve to realize closing action, the grounding switch moving contact sleeve can descend and be drawn out of the grounding switch static contact sleeve to realize opening action, the closing and opening actions are stably and firmly operated, and the reliability of the switching action of the device is effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a partial perspective view of the present invention.
In the figure: the device comprises a support base 1, a worm 2, a crank 3, a worm wheel 4, a grounding switch moving contact sleeve 5, a grounding switch static contact sleeve 6, a disconnecting switch contact base 7, a disconnecting switch base 8, a sliding column 9, a damping spring 10, a butting column 11, a connecting rod 12, a spring ring 13, a transmission plate 14, a slotted hole 15, a sliding fixture block 16, a rotating column 17, a fixed column 18, an arc groove 19, a limiting spring 20, a limiting plate 21, a connecting plate 22, a pushing spring 23, a butting block 24, a sleeve plate 25, a wedge surface 26, a lantern ring 27 and a guide rod 28.
Detailed Description
The technical scheme of the patent is further described in detail by combining the following specific embodiments:
example 1
Referring to fig. 1-4, an interchangeable adjustable high-voltage grounding switch includes a disconnecting switch base 8, a disconnecting switch contact base 7 is disposed on the disconnecting switch base 8, a vertically disposed grounding switch static contact sleeve 6 is fixed on one side of the disconnecting switch contact base 7, a vertically corresponding grounding switch moving contact sleeve 5 is disposed below the grounding switch static contact sleeve 6, a clamping mechanism clamped with the grounding switch static contact sleeve 6 is disposed on an upper side wall of the grounding switch moving contact sleeve 5, a crank 3 is rotatably mounted on the disconnecting switch base 8, a driving mechanism is connected to the crank 3, a guide rod 28 for sleeving the grounding switch moving contact sleeve 5 is vertically fixed on the disconnecting switch base 8, and a telescopic mechanism for pushing the grounding switch moving contact sleeve 5 to vertically slide is connected to the driving mechanism.
A moving contact sleeve 5 of the grounding switch arranged in the device is inserted into a static contact sleeve 6 of the grounding switch when moving upwards, so that the switching-on action is realized, and the static contact sleeve 6 of the grounding switch is pulled out when the moving contact sleeve 5 of the grounding switch moves downwards, so that the switching-off action is realized. The opening and closing actions are realized by driving the telescopic mechanism through the driving mechanism.
In particular, the drive mechanism comprises a coaxial fixed with hand crank 3. The worm 2, the meshing is connected with the worm wheel 4 who is connected with telescopic machanism transmission on the worm 2, and telescopic machanism is including fixing the driving plate 14 on worm wheel 4, articulates between driving plate 14 and the earthing switch moving contact sleeve 5 has connecting rod 12.
Through the aforesaid setting, can drive worm 2 rotatoryly through waveing crank 3, worm 2 drives worm wheel 4 rotatoryly, worm wheel 4 drives driving plate 14 and rotates, driving plate 14 drives connecting rod 12 swing this moment, and then realize that connecting rod 12 drives earthing switch moving contact sleeve 5 vertical lift adjustment under the guide effect of guide arm 28, during the combined floodgate action, adjust earthing switch moving contact sleeve 5 and move up, during the separating brake action, adjust earthing switch moving contact sleeve 5 and move down, the worm 2 and the worm wheel 4 cooperation of setting are connected, can effectively promote the stability of switch action, the auto-lock nature has simultaneously, the switching action reliability is promoted.
The telescopic machanism of this device is still including articulating the rotation post 17 on guide arm 28, rotates and establishes the lagging 25 that is fixed with on the post 17, the cover is equipped with one end and the fixed spring coil 13 of lagging 25 on rotating the post 17, and the spring coil 13 other end is fixed with the lantern ring 27, the strip slotted hole 15 has been seted up on the driving plate 14, and slidable mounting has the slip fixture block 16 of joint on driving plate 14 in the strip slotted hole 15, be fixed with the fixed column 18 that supplies the lantern ring 27 to cup joint on the slip fixture block 16.
Through the above-mentioned setting, when driving plate 14 pivoted in-process, slip fixture block 16 can be adjusted along strip slotted hole 15 slip, it realizes rotating the regulation to rotate post 17 this moment, spring coil 13 elastic compression, when earthing switch moving contact sleeve 5 is pegged graft in earthing switch moving contact sleeve 5, connecting rod 12 and driving plate 14 are in vertical state, slip fixture block 16 slides to strip slotted hole 15 bottom, it also rotates vertical position to rotate post 17 this moment, spring coil 13 deformation compression and have the elasticity thrust of vertical direction, telescopic machanism obtains overlapping this moment, realize the steady thrust of vertical direction, the stable grafting of earthing switch moving contact sleeve 5 when guaranteeing the combined floodgate is stable firm in earthing switch static contact sleeve 6.
Example 2
On the basis of embodiment 1, in addition, a connecting plate 22 is fixed on a side wall of a movable contact sleeve 5 of the grounding switch of the device, a butting column 11 horizontally penetrates through the connecting plate 22, a limiting plate 21 is fixed on an end portion of the butting column 11, a limiting spring 20 sleeved on the butting column 11 is fixed between the limiting plate 21 and a guide rod 28, and a plurality of arc grooves 19 are formed in side walls of the guide rod 28 at equal intervals.
In the process of switching on or switching off, the static contact sleeve 6 of the grounding switch slides relative to the guide rod 28, at the moment, the abutting column 11 slides against the guide rod 28 under the elastic action of the limiting spring 20, and intermittently abuts against the arc groove 19, so that in the process of switching on or switching off, an operator can well master the vertical displacement of the moving contact sleeve 5 of the grounding switch, good elastic vibration feedback is realized, and the switching operation is simple and convenient.
The clamping mechanism of the device comprises a butt joint block 24 which is slidably arranged on the side wall of a grounding switch moving contact sleeve 5, a butt push spring 23 is fixedly connected between the butt joint block 24 and the grounding switch moving contact sleeve 5, and a wedge surface 26 is arranged on the butt joint block 24.
In the process of closing the switch by vertically moving the grounding switch moving contact sleeve 5 upwards, the abutting block 24 vertically moves upwards, the wedge surface 26 on the abutting block 24 abuts against the lower edge of the grounding switch static contact sleeve 6 at the moment, then the abutting spring 23 is elastically compressed, the abutting block 24 completely enters the grounding switch static contact sleeve 6, the elastic reaction of the abutting spring 23 abuts against the abutting block 24 to tightly abut against the inner wall of the grounding switch static contact sleeve 6, and the firmness of the closing action is remarkably improved.
Furtherly, be equipped with supporting seat 1 below isolator base 8, slip on supporting seat 1 inlays to establish and installs the traveller 9 of fixing in isolator base 8 bottom, fixedly connected with damping spring 10 between traveller 9 and the supporting seat 1, and the aforesaid sets up makes traveller 9 can be relative 1 vertical slip of supporting seat, and damping spring 10's elastic deformation has effectively promoted the structural stability degree of this switch, has good anti-seismic performance.
In summary, the telescopic effect of the driving mechanism on the telescopic mechanism is realized by rotating the crank handle 3 which is rotatably arranged, so that the telescopic mechanism can drive the earthing switch moving contact sleeve 5 to vertically move up or down relative to the guide rod 28, that is, the earthing switch moving contact sleeve 5 can move up to be inserted into the earthing switch static contact sleeve 6 to realize a switching-on action, the earthing switch moving contact sleeve 5 can move down to draw out the earthing switch static contact sleeve 6 to realize a switching-off action, the switching-on and switching-off actions are stable and firm in operation, and the reliability of the switching action of the device is effectively improved.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that various changes, modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention and these are all within the scope of the invention. The protection scope of this technical solution patent should be subject to the appended claims.
Claims (5)
1. A high-voltage grounding switch with interchangeable adjustability comprises an isolating switch base (8), an isolating switch contact seat (7) is arranged on the isolating switch base (8), it is characterized in that one side of the isolating switch contact seat (7) is fixed with a grounding switch static contact sleeve (6) which is vertically arranged, a vertically corresponding grounding switch movable contact sleeve (5) is arranged below the grounding switch static contact sleeve (6), the upper side wall of the grounding switch moving contact sleeve (5) is provided with a clamping mechanism clamped with the grounding switch static contact sleeve (6), the isolating switch base (8) is rotatably provided with a hand crank (3), the hand crank (3) is connected with a driving mechanism, a guide rod (28) for a grounding switch moving contact sleeve (5) to be sleeved is vertically fixed on the isolating switch base (8), the driving mechanism is connected with a telescopic mechanism used for pushing a moving contact sleeve (5) of the grounding switch to vertically slide; the telescopic mechanism comprises a transmission plate (14) fixed on the worm wheel (4), and a connecting rod (12) is hinged between the transmission plate (14) and the grounding switch moving contact sleeve (5); telescopic machanism is still including articulating rotation post (17) on guide arm (28), rotates and to overlap on post (17) and establish and be fixed with lagging (25), it is equipped with spring coil (13) that one end and lagging (25) are fixed to rotate the cover on post (17), and spring coil (13) other end is fixed with lantern ring (27), strip slotted hole (15) have been seted up on driving plate (14), and slidable mounting has slip fixture block (16) of joint on driving plate (14) in strip slotted hole (15), be fixed with on slip fixture block (16) and supply fixed column (18) that lantern ring (27) cup jointed.
2. A interchanging adjustable high-voltage grounding switch according to claim 1, characterized in that the driving mechanism comprises a worm (2) coaxially fixed with the hand crank (3), and a worm wheel (4) in transmission connection with the telescopic mechanism is connected to the worm (2) in a meshing manner.
3. The interchangeable adjustable high-voltage grounding switch is characterized in that a connecting plate (22) is fixed on the side wall of a movable contact sleeve (5) of the grounding switch, a butting column (11) horizontally penetrates through the connecting plate (22), a limiting plate (21) is fixed at the end of the butting column (11), a limiting spring (20) sleeved on the butting column (11) is fixed between the limiting plate (21) and a guide rod (28), and a plurality of arc grooves (19) are formed in the side wall of the guide rod (28) at equal intervals.
4. The interchangeable adjustable high-voltage grounding switch according to claim 1, wherein the latching mechanism includes a contact block (24) slidably mounted on a side wall of the grounding switch moving contact sleeve (5), a contact spring (23) is fixedly connected between the contact block (24) and the grounding switch moving contact sleeve (5), and a wedge surface (26) is formed on the contact block (24).
5. The interchangeable adjustable high-voltage grounding switch according to claim 1, wherein a support base (1) is arranged below the isolating switch base (8), a sliding column (9) fixed at the bottom of the isolating switch base (8) is slidably embedded and installed on the support base (1), and a damping spring (10) is fixedly connected between the sliding column (9) and the support base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010607454.0A CN111739758B (en) | 2020-06-29 | 2020-06-29 | Interchange regulation nature high voltage earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010607454.0A CN111739758B (en) | 2020-06-29 | 2020-06-29 | Interchange regulation nature high voltage earthing switch |
Publications (2)
| Publication Number | Publication Date |
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| CN111739758A CN111739758A (en) | 2020-10-02 |
| CN111739758B true CN111739758B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010607454.0A Active CN111739758B (en) | 2020-06-29 | 2020-06-29 | Interchange regulation nature high voltage earthing switch |
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| CN (1) | CN111739758B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420437B (en) * | 2020-11-23 | 2023-06-13 | 西安西电开关电气有限公司 | Double-locking device with auxiliary support and high-capacity switch equipment |
| CN115440532A (en) * | 2022-10-09 | 2022-12-06 | 国网山东省电力公司淄博供电公司 | Static contact insulation sheath temperature indicating opening and closing type knife switch |
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| JP2003045295A (en) * | 2001-07-27 | 2003-02-14 | Togami Electric Mfg Co Ltd | Handle-operation auxiliaries of switch and handle operation method |
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| CN202695259U (en) * | 2012-07-02 | 2013-01-23 | 四川省电力公司攀枝花电业局 | Single pole vertical type disconnecting switch |
| CN104124096A (en) * | 2013-04-24 | 2014-10-29 | 乐星湖开电气（湖北）有限公司 | Transmission structure-based grounding switch |
| CN105470034A (en) * | 2015-12-03 | 2016-04-06 | 国家电网公司 | Earthing switch locking device, earthing switch, and combined switch |
| CN106710939A (en) * | 2015-07-30 | 2017-05-24 | 宜昌恒源科技有限公司 | Transmission operating mechanism of neutral point grounding protector of transformer |
| CN107039208A (en) * | 2017-05-24 | 2017-08-11 | 句容市福润电气有限公司 | A kind of easy indoor hv earthing switch |
| CN107170624A (en) * | 2017-05-24 | 2017-09-15 | 句容市福润电气有限公司 | A kind of swing type indoor hv earthing switch |
| CN109326478A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of GIL transmission system and transmission line of electricity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384961B (en) * | 2016-11-12 | 2018-07-17 | 上海天灵开关厂有限公司 | A kind of gas insulated bus earthing or grounding means |
| CN108335942B (en) * | 2018-03-06 | 2019-06-04 | 浙江工贸职业技术学院 | A kind of disconnecting switch |
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2020
- 2020-06-29 CN CN202010607454.0A patent/CN111739758B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003045295A (en) * | 2001-07-27 | 2003-02-14 | Togami Electric Mfg Co Ltd | Handle-operation auxiliaries of switch and handle operation method |
| CN202258981U (en) * | 2011-10-25 | 2012-05-30 | 石家庄开发区新导配电自动化有限公司 | Side-tipping type isolating switch |
| CN202695259U (en) * | 2012-07-02 | 2013-01-23 | 四川省电力公司攀枝花电业局 | Single pole vertical type disconnecting switch |
| CN104124096A (en) * | 2013-04-24 | 2014-10-29 | 乐星湖开电气（湖北）有限公司 | Transmission structure-based grounding switch |
| CN106710939A (en) * | 2015-07-30 | 2017-05-24 | 宜昌恒源科技有限公司 | Transmission operating mechanism of neutral point grounding protector of transformer |
| CN105470034A (en) * | 2015-12-03 | 2016-04-06 | 国家电网公司 | Earthing switch locking device, earthing switch, and combined switch |
| CN107039208A (en) * | 2017-05-24 | 2017-08-11 | 句容市福润电气有限公司 | A kind of easy indoor hv earthing switch |
| CN107170624A (en) * | 2017-05-24 | 2017-09-15 | 句容市福润电气有限公司 | A kind of swing type indoor hv earthing switch |
| CN109326478A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of GIL transmission system and transmission line of electricity |
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| CN111739758A (en) | 2020-10-02 |
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Denomination of invention: A Interchangeable Regulating High Voltage Grounding Switch Effective date of registration: 20231031 Granted publication date: 20220906 Pledgee: Zhejiang Jiangshan rural commercial bank Limited by Share Ltd. Pledgor: JIANGSHAN HAIWEI TECHNOLOGY Co.,Ltd. Registration number: Y2023980063140 |
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