CN114188736B - Multi-voltage-class combined ground wire of transformer substation - Google Patents
Multi-voltage-class combined ground wire of transformer substation Download PDFInfo
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- CN114188736B CN114188736B CN202111434914.5A CN202111434914A CN114188736B CN 114188736 B CN114188736 B CN 114188736B CN 202111434914 A CN202111434914 A CN 202111434914A CN 114188736 B CN114188736 B CN 114188736B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- Manufacturing Of Electrical Connectors (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a transformer substation multi-voltage-class combined ground wire, which comprises a ground terminal, a one-to-three ground wire electrically connected with the ground terminal, a ground wire clamp electrically connected with the tail end of a branch line of the one-to-three ground wire and an insulating rod connected to the bottom of the ground wire clamp, wherein the ground wire clamp consists of a double-tongue spring wire clamp and a clamp type wire clamp which are fixed by back, the clamp type wire clamp comprises a pneumatic telescopic cylinder which is vertically arranged, the upper end of the outer wall of the pneumatic telescopic cylinder is connected with a lower clamping plate and an upper clamping plate respectively with the top end of a telescopic rod, the insulating rod is a hollow rod, and the bottom end of the insulating rod is provided with a blowing device.
Description
Technical Field
The invention relates to the technical field of grounding wire structures, in particular to a multi-voltage-class combined type grounding wire of a transformer substation.
Background
When the equipment is in an overhaul state, the grounding wire is required to be hung on the equipment and in a three-phase short circuit, so that the operation of adding the grounding wire when switching operation is performed every time is required for guaranteeing the safety of maintainers, and the risk of electric shock of the maintainers is prevented. When the transformer substation is managed, a plurality of voltage classes and a plurality of types of grounding wires are required to be stored, the cost is high, the occupied space is large, the grounding wires are easy to accumulate, and the arrangement is difficult.
The traditional transformer substation three-phase short-circuit ground wire is connected together by a ground wire chuck, an insulating rod and the three-phase short-circuit ground wire, and meanwhile, different voltage grades correspond to different ground wires, so that the ground wires with various voltage transformation grades are required to be distributed to each transformer substation, and the ground wires are subjected to inspection replacement and regular maintenance by unfavorable Yu Yunwei personnel, and meanwhile, the time for operating personnel to operate and arrange the ground wires is prolonged during switching operation each time. The grounding wire clamping head is divided into a double-tongue spring type clamping head and a double-tongue spring type clamping head, and because the grounding wire clamping head is limited by the type of a bottom wire connector, the efficiency is low each time when the ground wire is hung, and the contact between the connector and the bus bar is not firm.
Based on the above, the invention designs a multi-voltage-class combined ground wire of a transformer substation, so as to solve the problems.
Disclosure of Invention
The invention aims to provide a multi-voltage-class combined ground wire of a transformer substation, so as to solve the technical problems.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a transformer substation's multi-voltage-class combination formula ground wire, include the earthing terminal, with earthing terminal electric connection's one minute three earth connection, respectively with one minute three earth connection branch line end electric connection's earth clamp and connect in the insulating rod of earth clamp bottom, the earth clamp comprises back fixed two tongue spring type clamps and folder formula clamp, wherein, folder formula clamp is including the pneumatic telescopic cylinder of erectting the setting, the outer wall upper end of pneumatic telescopic cylinder is connected with lower plate and punch holder respectively rather than the top of telescopic link, the insulating rod is cavity stick and bottom is provided with the air-blowing device, through manual pressing air-blowing device can trigger the pneumatic telescopic cylinder drives the relative lower plate of punch holder and opens the activity.
Preferably, the double-tongue spring type wire clamp, the lower clamping plate and the upper clamping plate are all made of conductor metal, and a grounding wire is connected between the double-tongue spring type wire clamp and the lower clamping plate.
Preferably, the bottom of the upper clamping plate is vertically connected with a limiting rod, a limiting hole is formed in the lower clamping plate corresponding to the projection position of the limiting rod, and the limiting rod is arranged in the limiting hole in a penetrating mode.
Preferably, a wire clamp threaded hole is formed in the bottom of the double-tongue spring wire clamp, a branch wire end of the one-to-three grounding wire is connected with a threaded joint, and the threaded joint is in threaded fit with the wire clamp threaded hole.
Preferably, the pneumatic telescopic cylinder comprises a cylinder body, wherein a front plug and a rear plug are respectively arranged at two ends of the cylinder body, a piston is arranged in the cylinder body, the top of the piston is connected with a piston rod, the piston rod penetrates out of the front plug and is fixedly connected with the upper clamping plate, a rod movable sealing element is arranged on the front plug, the piston rod is positioned in the cylinder body, a reset pressure spring is sleeved on the outer wall of one end of the cylinder body, and a cylinder air inlet threaded hole is formed in the rear plug.
Preferably, the insulating rod at least comprises a section, an air pressure channel with two ends communicated is arranged in the insulating rod, and a rod air outlet threaded column and a rod air inlet threaded hole are respectively arranged at two ends of the insulating rod.
Preferably, a first sealing section ring is arranged on the rod air outlet threaded column.
Preferably, the air blowing device comprises a handle shell with an opening at the top, a rubber air bag is arranged in the inner cavity of the handle shell, the top end of the rubber air bag is provided with an opening and a flange end edge, the flange end edge is abutted to a port of the handle shell and is tightly pressed and fixed by a screw joint in a screw joint mode, an air blowing air outlet screw column is arranged at the top end of the screw joint, and a hollowed-out opening used for contacting and holding the rubber air bag is formed in the handle shell.
Preferably, the number of the hollowed-out openings is two, and the hollowed-out openings are respectively arranged at the left side and the right side of the handle shell.
Preferably, a second sealing section ring is arranged on the air blowing and exhausting threaded column.
Compared with the prior art, the invention has the beneficial effects that:
the multi-voltage-class combined ground wire adopts a double-power-connection-end combined design so as to meet the requirements of different equipment on site on different power connection ends.
The multi-voltage-class combined ground wire adopts the detachable combined insulating rod, meets the requirements of different voltage classes on site on insulating rods with different lengths, and is suitable for multiple voltage classes by a set of ground wires.
The clamp type wire clamp of the multi-voltage-class combined ground wire has the working mode that the opening movement is triggered by manually pressing the air blowing device at the tail end of the insulating rod, and the control structure is not limited by the length state of the insulating rod, so that an operator can simply, conveniently and quickly connect and detach the clamp type wire clamp with a wire or a conductor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a grounding clip according to the present invention;
FIG. 3 is a schematic view of the pneumatic telescopic cylinder structure of the present invention;
FIG. 4 is a schematic view of an insulating rod according to the present invention;
fig. 5 is a schematic structural diagram of the air-blowing device of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
100-grounding end, 200-one-to-three grounding wire, 210-threaded joint, 300-grounding wire clamp, 310-double-tongue spring type wire clamp, 311-wire clamp threaded hole, 320-clamp type wire clamp, 321-pneumatic telescopic cylinder, 3211-cylinder, 3212-front plug, 3213-rear plug, 3214-piston, 3215-piston rod, 3216-rod movable seal, 3217-return pressure spring, 3218-cylinder air inlet threaded hole, 322-lower clamp plate, 323-upper clamp plate, 324-air blowing device, 3241-handle shell, 3242-rubber air bag, 3243-flange end edge, 3244-threaded adapter, 3245-air blowing air outlet threaded column, 3246-hollow opening, 3247-second sealing section ring, 325-limit rod, 326-limit hole, 400-insulating rod, 410-air pressure channel, 420-rod air outlet threaded column, 430-rod air inlet threaded hole, 440-first sealing section ring, 500-grounding wire.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments in the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention.
Referring to fig. 1-2, the invention provides a technical scheme that: the utility model provides a transformer substation's multi-voltage class combination formula ground wire, includes earthing terminal 100, with earthing terminal 100 electric connection's one minute three ground wire 200, with one minute three ground wire 200 branch line terminal electric connection's ground wire clamp 300 and connect in the insulating stick 400 of ground wire clamp 300 bottom respectively, during the in-service use, earthing terminal 100 is connected with the earth electrode equipment, and three sets of ground wire clamps 300 are connected with three-phase circuit's wire or conductor respectively, make three-phase circuit short circuit ground connection.
The grounding wire clamp 300 is composed of a double-tongue spring wire clamp 310 and a clamping piece type wire clamp 320 which are fixed back to back, wherein the double-tongue spring wire clamp 310 has the same structure as the existing double-tongue spring wire clamps in the market, and a hook of the double-tongue spring wire clamp 310 bypasses a wire and then is pushed and pulled back and forth so that guiding and clamping or separating can be achieved by using a spring piece in the hook; while the double-tongue spring clip 310 is generally applicable only to wire conductors, for plate-to-body, the clip 320 is required;
the clamp type wire clamp 320 comprises a pneumatic telescopic cylinder 321 which is vertically arranged, the upper end of the outer wall of the pneumatic telescopic cylinder 321 and the top end of a telescopic rod of the pneumatic telescopic cylinder are respectively connected with a lower clamping plate 322 and an upper clamping plate 323, the insulating rod 400 is a hollow rod, the bottom end of the insulating rod is provided with an air blowing device 324, the pneumatic telescopic cylinder 321 can be triggered to drive the upper clamping plate 323 to open relative to the lower clamping plate 322 through manual pressing of the air blowing device 324, the opened lower clamping plate 322 and the upper clamping plate 323 are utilized to bite a wire or a plate conductor, and after the air blowing device 324 is loosened, the pneumatic telescopic cylinder 321 can automatically shrink to drive the upper clamping plate 323 to close relative to the lower clamping plate 322 to move, so that the wire or the plate conductor is clamped and fixed.
The double-tongue spring wire clamp 310, the lower clamping plate 322 and the upper clamping plate 323 are all made of conductor metal, high-quality aluminum alloy die casting is adopted, the strength is high, oxygen is not suitable for the surface of the wire clamp through surface treatment, a grounding wire 500 is connected between the double-tongue spring wire clamp 310 and the lower clamping plate 322, the grounding wire 500 and a wire core of the one-to-three grounding wire 200 are stranded soft copper wire belt transparent insulating covers, and the insulating rod 400 is made of an imported epoxy resin tube, so that the insulating performance is good, and the strength is high.
Further, the bottom of the double-tongue spring type wire clamp 310 is provided with a wire clamp threaded hole 311, the branch wire ends of the one-to-three grounding wire 200 are connected with a threaded connector 210, the threaded connector 210 is in threaded fit with the wire clamp threaded hole 311, the branch wire ends of the one-to-three grounding wire 200 are in threaded fit with the wire clamp threaded hole 311 to form a detachable connection structure with the double-tongue spring type wire clamp 310 through the threaded connector 210, and meanwhile, the insulating rod 400 and the grounding wire clamp 300 are also in detachable connection structure, so that the grounding wire has the functions of being detachable, convenient to carry, meeting various equipment and different voltage levels, and meeting the requirements that operation and maintenance personnel can improve switching operation efficiency and reduce daily maintenance workload.
Further, the bottom of the upper clamping plate 323 is vertically connected with a limiting rod 325, a limiting hole 326 is formed in the lower clamping plate 322 corresponding to the projection position of the limiting rod 325, the limiting rod 325 is arranged in the limiting hole 326 in a penetrating mode, the limiting rod 325 is always in plug-in fit with the limiting hole 326 in the vertical moving process of the upper clamping plate 323, the limiting effect is achieved, swing and rotation deviation in the vertical moving process of the upper clamping plate 323 is prevented, and therefore dislocation is generated between the upper clamping plate 323 and the lower clamping plate 322.
Further, referring to fig. 3, the pneumatic telescopic cylinder 321 includes a cylinder body 3211 with a front plug 3212 and a rear plug 3213 respectively provided at two ends, a piston 3214 is provided in the cylinder body 3211, a piston rod 3215 is connected to the top of the piston 3214, the piston rod 3215 penetrates out of the front plug 3212 and is fixedly connected with the upper clamping plate 323, a rod movable sealing member 3216 is provided on the front plug 3212, a reset pressure spring 3217 is sleeved on an outer wall of one end of the piston rod 3215 located in the cylinder body 3211, a cylinder air inlet threaded hole 3218 is provided on the rear plug 3213 and is used for communicating with the insulating rod 400, when the air blowing device 324 is held and swelled in actual operation, air flows into the lower part of the piston 3214 in the cylinder body 3211 through the insulating rod 400 by the cylinder air inlet threaded hole 3218, so that the inner pressure of the piston 3214 in the cylinder body 3211 is raised, the piston rod 3214 is pushed to rise against the elasticity of the reset pressure spring 3217, and the upper clamping plate 323 is driven to open and move relative to the lower clamping plate 322. After the air blowing device 324 is loosened, under the action of the restoring elastic force of the restoring pressure spring 3217, the piston 3214 moves downwards, the pneumatic telescopic cylinder 321 automatically contracts to drive the upper clamping plate 323 to close and move relative to the lower clamping plate 322, so that a wire or a plate conductor is clamped and fixed, and meanwhile, part of air below the piston 3214 in the cylinder 3211 is compressed along with space and is extruded back into the air blowing device 324 through the insulating rod 400, and constant pressure is restored in the air blowing device 324 and the cylinder 3211.
Further, referring to fig. 4, the insulating rod 400 includes at least one section, the inside of the insulating rod 400 is provided with an air pressure channel 410 with two through ends, two ends of the insulating rod 400 are respectively provided with a rod air outlet threaded column 420 and a rod air inlet threaded hole 430, and the insulating rod 400 can be designed into multiple sections with the same length, one section with different lengths or multiple sections with different lengths for free combination use because the grounding heights are different without using wires with different voltage levels, only the total length of the final insulating rod 400 is enough to reach the grounding height, the thread specifications of the rod air outlet threaded column 420 and the rod air inlet threaded hole 430 are consistent, the end-to-end connection can be achieved, the thread specifications of the rod air outlet threaded column 420 and the thread specification of the cylinder air inlet threaded hole 3218 are consistent, the air pressure channel 410 inside the insulating rod 400 can be directly screwed and installed for communicating the air blowing device 324 and the air cylinder 321, and in addition, the rod air outlet threaded column 420 is provided with a first sealing ring 440 for air sealing during connection.
Further, referring to fig. 5, the air blowing device 324 includes a handle housing 3241 with an opening at the top, a rubber air bag 3242 is disposed in an inner cavity of the handle housing 3241, the top end of the rubber air bag 3242 has an opening and is provided with a flange end edge 3243, the flange end edge 3243 is abutted to a port of the handle housing 3241 and is tightly pressed and fixed by screwing a screw thread adapter 3244, an air blowing air outlet screw column 3245 is disposed at the top end of the screw thread adapter 3244, a second sealing section ring 3247 is disposed on the air blowing air outlet screw column 3245, the air blowing air outlet screw column plays a role in connecting and sealing, a hollow opening 3246 for contacting and holding the rubber air bag 3242 is formed in the handle housing 3241, the handle housing 3241 mainly plays a role of holding an outer skeleton for holding a supporting device, and the port of the rubber air bag 3242 in the handle housing 3241 is communicated with an air pressure channel 410 in the insulating rod 400 for changing air pressure to trigger the air telescopic cylinder 321.
Furthermore, the two hollow openings 3246 are respectively arranged at the left side and the right side of the handle housing 3241, and the purpose of the symmetrical openings at the left side and the right side is that when the handle is only held and supported, the hands contact the front side and the rear side of the handle housing 3241, and when the pneumatic telescopic cylinder 321 needs to be triggered, the hands contact the left side and the right side of the handle housing 3241, thus the pneumatic telescopic cylinder 321 can be effectively prevented from being triggered by misoperation, and the practical use is safer and more stable.
In the description of the invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or be integrated; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms in the invention will be understood by those of ordinary skill in the art.
Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a transformer substation's multi-voltage class combination formula ground wire, includes earthing terminal (100), with one minute three earth connection (200) of earthing terminal (100) electric connection, respectively with earthing clamp (300) of one minute three earth connection (200) branch line end electric connection and connect in insulating stick (400) of earthing clamp (300) bottom, its characterized in that: the grounding wire clamp (300) is composed of a double-tongue spring wire clamp (310) and a clamping piece type wire clamp (320) which are fixed back to back, wherein the clamping piece type wire clamp (320) comprises a pneumatic telescopic cylinder (321) which is vertically arranged, the upper end of the outer wall of the pneumatic telescopic cylinder (321) and the top end of a telescopic rod of the pneumatic telescopic cylinder are respectively connected with a lower clamping plate (322) and an upper clamping plate (323), the insulating rod (400) is a hollow rod, the bottom end of the insulating rod is provided with an air blowing device (324), and the air blowing device (324) is manually pressed to trigger the pneumatic telescopic cylinder (321) to drive the upper clamping plate (323) to open relative to the lower clamping plate (322);
the pneumatic telescopic cylinder (321) comprises a cylinder body (3211) with front plugs (3212) and rear plugs (3213) arranged at two ends, a piston (3214) is arranged in the cylinder body (3211), a piston rod (3215) is connected to the top of the piston (3214), the piston rod (3215) penetrates out of the front plugs (3212) and is fixedly connected with the upper clamping plate (323), a rod movable sealing piece (3216) is arranged on the front plugs (3212), a reset pressure spring (3217) is sleeved on the outer wall of one end of the piston rod (3215) located in the cylinder body (3211), and a cylinder air inlet threaded hole (3218) is formed in the rear plugs (3213);
the insulation rod (400) at least comprises a section, an air pressure channel (410) with two through ends is arranged in the insulation rod (400), and a rod air outlet threaded column (420) and a rod air inlet threaded hole (430) are respectively arranged at two ends of the insulation rod (400);
a first sealing section ring (440) is arranged on the rod air outlet threaded column (420);
the air blowing device (324) comprises a handle shell (3241) with an opening at the top, a rubber air bag (3242) is arranged in an inner cavity of the handle shell (3241), the top end of the rubber air bag (3242) is provided with an opening and a flange end edge (3243), the flange end edge (3243) is abutted to a port of the handle shell (3241) and is tightly pressed and fixed by a threaded adapter (3244), an air blowing air outlet threaded column (3245) is arranged at the top end of the threaded adapter (3244), and a hollowed-out opening (3246) for contacting and holding the rubber air bag (3242) is formed in the handle shell (3241).
2. The substation multi-voltage class combined ground wire of claim 1, wherein: the double-tongue spring type wire clamp (310), the lower clamping plate (322) and the upper clamping plate (323) are made of conductor metal, and a grounding wire (500) is connected between the double-tongue spring type wire clamp (310) and the lower clamping plate (322).
3. The substation multi-voltage class combined ground wire of claim 1, wherein: the bottom of the upper clamping plate (323) is vertically connected with a limiting rod (325), a limiting hole (326) is formed in the lower clamping plate (322) corresponding to the projection position of the limiting rod (325), and the limiting rod (325) is arranged in the limiting hole (326) in a penetrating mode.
4. The substation multi-voltage class combined ground wire of claim 1, wherein: the bottom of the double-tongue spring type wire clamp (310) is provided with a wire clamp threaded hole (311), the branch wire end of the one-to-three grounding wire (200) is connected with a threaded connector (210), and the threaded connector (210) is in threaded connection with the wire clamp threaded hole (311).
5. The substation multi-voltage class combined ground wire of claim 1, wherein: the number of the hollowed-out openings (3246) is two, and the hollowed-out openings are respectively arranged on the left side and the right side of the handle shell (3241).
6. The substation multi-voltage class combined ground wire of claim 1, wherein: the air-blowing air-out threaded column (3245) is provided with a second sealing section ring (3247).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111434914.5A CN114188736B (en) | 2021-11-29 | 2021-11-29 | Multi-voltage-class combined ground wire of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111434914.5A CN114188736B (en) | 2021-11-29 | 2021-11-29 | Multi-voltage-class combined ground wire of transformer substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114188736A CN114188736A (en) | 2022-03-15 |
| CN114188736B true CN114188736B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111434914.5A Active CN114188736B (en) | 2021-11-29 | 2021-11-29 | Multi-voltage-class combined ground wire of transformer substation |
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| Country | Link |
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| CN (1) | CN114188736B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205264882U (en) * | 2016-01-07 | 2016-05-25 | 武汉里得电力科技股份有限公司 | Novel substation grounding fastener head |
| CN208849097U (en) * | 2018-11-15 | 2019-05-10 | 安徽云德科技发展有限公司 | A kind of short-circuit line wire clamp of safety and stability |
| CN211578999U (en) * | 2020-05-06 | 2020-09-25 | 江苏恒安电力工具有限公司 | Plain end spiral compaction formula earth connection |
| CN214706268U (en) * | 2021-03-22 | 2021-11-12 | 国网河南省电力公司许昌供电公司 | Portable earth connection device of transformer substation |
-
2021
- 2021-11-29 CN CN202111434914.5A patent/CN114188736B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205264882U (en) * | 2016-01-07 | 2016-05-25 | 武汉里得电力科技股份有限公司 | Novel substation grounding fastener head |
| CN208849097U (en) * | 2018-11-15 | 2019-05-10 | 安徽云德科技发展有限公司 | A kind of short-circuit line wire clamp of safety and stability |
| CN211578999U (en) * | 2020-05-06 | 2020-09-25 | 江苏恒安电力工具有限公司 | Plain end spiral compaction formula earth connection |
| CN214706268U (en) * | 2021-03-22 | 2021-11-12 | 国网河南省电力公司许昌供电公司 | Portable earth connection device of transformer substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114188736A (en) | 2022-03-15 |
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