CN107959272B - Sliding/fixed connection overcurrent fitting for convertor station - Google Patents
Sliding/fixed connection overcurrent fitting for convertor station Download PDFInfo
- Publication number
- CN107959272B CN107959272B CN201610903471.2A CN201610903471A CN107959272B CN 107959272 B CN107959272 B CN 107959272B CN 201610903471 A CN201610903471 A CN 201610903471A CN 107959272 B CN107959272 B CN 107959272B
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- Prior art keywords
- overcurrent
- fitting
- connecting rod
- tubular
- assembly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/04—Partially-enclosed installations, e.g. in ducts and adapted for sliding or rolling current collection
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The invention discloses a sliding/fixed connection overcurrent fitting for a converter station. The device comprises an overcurrent hardware fitting assembly, a pipe female end hardware fitting assembly, a sliding/fixing rod assembly and an equipment terminal mounting plate; the two ends of the overcurrent hardware fitting assembly are used for connecting the bus and the equipment terminal; the tubular bus end fitting assembly comprises a tubular bus end fitting body, wherein the tubular bus end fitting body is fixed at the end of the tubular bus; the sliding/fixing rod assembly comprises a connecting rod, one end of the connecting rod is provided with an insulating sliding disc and extends into the tubular bus, and the other end of the connecting rod is connected with the equipment terminal mounting plate; an insulating sliding sleeve is sleeved on the connecting rod, and one end of the insulating sliding sleeve is fixed at one end of the tubular busbar end fitting body; the insulating sliding sleeve is provided with a threaded hole, and a blind hole is arranged at the corresponding position of the threaded hole on the connecting rod; the device terminal mounting plate is connected with the device terminal. The overcurrent hardware fitting can realize overcurrent and mechanical connection.
Description
Technical Field
The invention relates to a sliding/fixed connection overcurrent fitting for a converter station, and belongs to the field of flexible direct current transmission line engineering.
Background
The flexible direct current transmission technology is a novel direct current transmission technology based on a voltage source converter, a turn-off device and a pulse width modulation technology, and is important equipment for constructing a smart grid. Compared with the traditional mode, the flexible direct current transmission technology has the advantages of high controllability, convenient and environment-friendly design and construction, small occupied area, no need of communication among converter stations and the like, has stronger technical advantages in the aspects of island power supply, capacity-increasing transformation of an urban power distribution network, interconnection of alternating current systems, grid connection of a large-scale wind power plant and the like, and is a strategic choice for changing the development pattern of a large power grid. And the flexible direct current transmission can carry clean energy sources such as wind energy, solar energy and the like from a plurality of sites, and the flexible direct current transmission reaches load centers of a plurality of cities through a large-capacity and long-distance power transmission channel, so that an effective solution is provided for the fields of new energy grid connection, large city power supply and the like. Therefore, the power transmission technology is favored by all countries in the world, and with the rapid development of new energy, the market demand of the flexible direct current power transmission technology is wider.
The flexible direct current transmission technology is used as a new generation direct current transmission technology, is similar to high-voltage direct current transmission in structure, and still consists of a converter station and a direct current transmission line. The power conversion station is an indispensable part of the power conversion station, plays an important role in alternating current and direct current conversion, has a plurality of devices in the power conversion station and complex electric connection, is used as hardware fitting of main electric connection components among all devices in the power conversion station, has more serious surface electric field distribution deformity due to appearance and size, and has high local extremely easy outgoing line field intensity to cause corona discharge, so the power conversion station hardware fitting is more subjected to long-term test in the aspects of electric performance besides meeting the requirements of mechanical strength, overcurrent and the like.
Disclosure of Invention
The invention aims to provide a sliding/fixed connection overcurrent fitting for a convertor station, which considers electrical and mechanical properties and solves the problems of sliding/fixed connection, overcurrent, corona prevention and the like between an inner tube bus of a +/-320 kV convertor station and equipment terminals.
In order to achieve the above purpose, the sliding/fixed connection overcurrent fitting for the 320kV convertor station is arranged between the tubular bus and the equipment terminal, realizes overcurrent connection between equipment and the tubular bus, and meets the requirements of mechanical strength and corona prevention.
The invention provides a sliding/fixed connection overcurrent fitting for a converter station, which comprises an overcurrent fitting assembly, a tube bus end fitting assembly, a sliding/fixed rod assembly and an equipment terminal mounting plate, wherein the sliding/fixed connection overcurrent fitting is arranged on the tube bus end fitting assembly;
the two ends of the overcurrent fitting assembly are used for connecting a pipe bus with equipment terminals to realize overcurrent connection between the pipe bus and the equipment;
the tubular busbar end fitting assembly comprises a tubular busbar end fitting body, wherein the tubular busbar end fitting body is fixed at the end of the tubular busbar;
the sliding/fixing rod assembly comprises a connecting rod, one end of the connecting rod is provided with an insulating sliding disc and extends into the tubular bus, and the other end of the connecting rod is connected with the equipment terminal mounting plate; an insulating sliding sleeve is sleeved on the connecting rod, and one end of the insulating sliding sleeve is fixed at one end of the tubular busbar end fitting body; the insulating sliding sleeve is provided with a threaded hole, and a blind hole is formed in the connecting rod at a position corresponding to the threaded hole;
the device terminal mounting plate is connected with the device terminal.
In the overcurrent fitting, the overcurrent fitting assembly comprises a tube bus overcurrent fitting body, a terminal overcurrent fitting and an aluminum stranded wire;
the aluminum stranded wires are arc-shaped;
and two ends of the aluminum stranded wire are respectively connected with the tubular busbar overcurrent fitting body and the terminal overcurrent fitting body and are fixed through welding.
In the overcurrent fitting, the pipe bus overcurrent fitting body is sleeved on the pipe bus;
the terminal overcurrent fitting is connected with the equipment terminal through a bolt.
In the overcurrent fitting, the tubular busbar end fitting body is connected with the tubular busbar through bolts;
the end part of the tubular bus end fitting body is provided with a mounting hole for fixing the insulating sliding sleeve.
In the overcurrent fitting, the connecting rod is in threaded connection with the insulating sliding disc;
the connecting rod is connected with the equipment terminal mounting plate through bolts.
In the overcurrent fitting, the threaded holes are formed in two end parts of the insulating sliding sleeve along the axial direction of the connecting rod and are used for installing limiting threaded pins; when the overcurrent fitting is required to be installed to be of a fixed structure, the end part of the limiting threaded pin is screwed into the blind hole on the connecting rod, and then the insulating sliding sleeve is fixed with the connecting rod; when the overcurrent fitting is in a sliding structure to be installed, the end part of the limiting threaded pin exits the blind hole on the connecting rod, and the connecting rod can slide in the insulating sliding sleeve, so that the tubular bus can slide in a certain range along the axial direction.
In the overcurrent fitting, the insulating sliding disc is a nylon sliding disc;
the insulating sliding sleeve is a nylon sliding sleeve.
In the overcurrent fitting, the equipment terminal mounting plate comprises an L plate and a connector;
one end plate of the L-shaped plate is connected with the connector, and the other end plate is connected with the equipment terminal;
the other end of the connector is connected with the connecting rod.
The sliding/fixed connection overcurrent fitting for the convertor station comprises four parts: the device comprises an overcurrent fitting assembly, a tube female end fitting assembly, a sliding/fixing rod assembly and a device terminal mounting plate. The overcurrent fitting assembly is used for overcurrent connection between the tubular bus and equipment; the tubular bus end fitting assembly, the sliding/fixing rod assembly and the equipment terminal mounting plate are mutually connected and used for mechanical connection (sliding/fixing) between the tubular bus and equipment, overcurrent and mechanical connection between the tubular bus and the equipment are realized through the installation of the tubular bus and the equipment, and the corona prevention requirement of the tubular bus is realized through smooth transition design of the tubular bus and self corona prevention after the pure aluminum stranded wires are bent into radians. The overcurrent hardware fitting assembly is used for overcurrent connection of the whole set of hardware fittings, two sides of the overcurrent hardware fitting assembly are respectively arranged on the tubular bus and the equipment terminals to form a diversion channel, and overcurrent connection between the tubular bus and the equipment is realized. The tubular busbar end fitting assembly is used for connecting the sliding/fixing rod assembly and the tubular busbar and is arranged at the end of the tubular busbar, and an end enclosure is reserved with a hole connected with the sliding/fixing rod assembly. The sliding/fixing rod assembly is used for connecting the equipment terminal mounting plate and the tubular bus end fitting assembly, and can be installed into two structural forms of sliding and fixing according to requirements. The equipment terminal mounting plate is used for connecting the sliding/fixing rod assembly with the equipment terminals, and the equipment terminal mounting plate and the pipe bus end fitting assembly and the sliding/fixing rod assembly are used for jointly realizing mechanical connection between the pipe bus and equipment.
Drawings
Fig. 1 is a schematic structural view of a sliding/fixed connection overcurrent fitting for a converter station according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of an overcurrent fitting assembly of the sliding/fixed connection overcurrent fitting for a converter station according to the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a left side view of fig. 3 (omitting the device terminal overcurrent fitting).
Fig. 6 is a schematic view of a tube female end fitting assembly of a slide/fixed connection overcurrent fitting for a converter station according to the present invention.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a schematic view of a sliding/fixed connection rod assembly of a sliding/fixed connection overcurrent fitting for a converter station according to the present invention.
Fig. 9 is a top view of fig. 8.
Fig. 10 is a schematic view of an equipment terminal mounting plate of a slide/fixed connection overcurrent fitting for a converter station according to the present invention.
Fig. 11 is a top view of fig. 10.
The figures are marked as follows:
1, an overcurrent hardware assembly; 2, a pipe female end fitting assembly; 3 a slide/fixed bar assembly; 4 a device terminal mounting plate; 5, fastening a bolt A;6, a tubular bus; 7, a bolt with a pin hole; 8 equipment terminals; 9, a tube bus overcurrent hardware fitting body; 10 pure aluminum wires; 11 equipment terminal overcurrent hardware fittings; 12 fastening a bolt B;13, a tube female end fitting body; 14 nylon slide plate; 15 Ni Long Huatao; 16 limit threaded pins; 17 connecting rods; 18 damping wire clamps; a 19L plate; 20 connectors.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
As shown in fig. 1 and fig. 2, the sliding/fixing dual-purpose overcurrent connection fitting for the +/-320 kV converter station can realize overcurrent connection between two tubular buses and meet the requirements of mechanical strength and corona prevention.
The overcurrent connection hardware fitting is arranged between a tubular busbar 6 and equipment and comprises four parts, namely an overcurrent hardware fitting assembly 1, a tubular busbar end hardware fitting assembly 2, a sliding/fixing rod assembly 3 and an equipment terminal mounting plate 4. The overcurrent hardware assembly 1 plays a role in guiding flow in the whole hardware, is arranged between the tubular bus 6 and the equipment terminal 8, and forms a passage so as to realize overcurrent between the tubular bus 6 and the equipment. The tubular busbar end fitting assembly 2, the sliding/fixing rod assembly 3 and the equipment terminal mounting plate 4 play a role in mechanical connection in the whole set of fitting, are mutually connected and mounted between the tubular busbar 6 and the equipment terminal 8, realize mechanical connection, and can be mounted into two structural forms of sliding and fixing according to requirements. The corona prevention of the whole set of hardware is realized by the smooth transition design of the hardware and the corona prevention of the pure aluminum stranded wire 10 after being bent into radian.
The overcurrent fitting assembly 1 is used for overcurrent connection of the whole set of fittings, and comprises three parts, namely a tubular busbar overcurrent fitting body 9, pure aluminum stranded wires 10 and a terminal overcurrent fitting 11, wherein stranded wire welding holes for welding the pure aluminum stranded wires 10 are formed in one side of the tubular busbar overcurrent fitting body 9, the stranded wire welding holes in the two tubular busbar overcurrent fitting bodies 9 are installed in a staggered mode during assembly so as to maximize an overcurrent contact area, and stranded wire welding holes are also formed in the terminal overcurrent fitting 11 and used for inserting and plug welding the end parts of the pure aluminum stranded wires 10 into the stranded wire welding holes. The inner circle contact surface of the tubular busbar body 9 is matched with the outer diameter of the tubular busbar 6, the size and the bolt hole position of the terminal overcurrent fitting 11 are matched with the equipment terminal 8, and the terminal overcurrent fitting is connected with the equipment terminal 8 through the fastening bolt A5.
The tubular busbar end fitting assembly 2 is used for connection between the sliding/fixing rod assembly 3 and the tubular busbar 6, and as shown in fig. 6 and 7, comprises two tubular busbar end fitting bodies 13 which are installed at the ends of the tubular busbar 6 through fastening bolts B12, and end caps are reserved with mounting holes for mounting nylon sliding sleeves 15 in the sliding/fixing rod assembly 3.
The sliding/fixing rod assembly 3 is used for connecting the equipment terminal mounting plate 4 and the pipe female end fitting assembly 2, and as shown in fig. 8 and 9, comprises a nylon sliding plate 14, a nylon sliding sleeve 15, a limiting threaded pin 16, a connecting rod 17 and a matched fastener. The nylon slide plate 14 is arranged at the end part of the connecting rod 17 and is arranged in the tubular bus 6 to play a double role of sliding and insulation; the nylon sliding sleeve 15 is sleeved on the connecting rod 17 and is clamped in a hole reserved on the sealing head of the tubular busbar end fitting assembly 2 during installation, and the double functions of sliding and insulation are also achieved. Screw holes are designed on two sides of the nylon sliding sleeve 15 and are used for installing a limiting threaded pin 16. The connecting rod 17 is a steel rod with one end being a thread and one end being a connecting hole, and is a bearing piece of the whole set of hardware fitting, the thread side is used for fixing the nylon slide 14, the connecting hole side is connected with the equipment terminal mounting plate 4 through a bolt 7 with a pin hole, a blind hole matched with the position of the threaded hole on the nylon slide sleeve 15 is designed at the corresponding position of the connecting rod 17, when the whole set of hardware fitting is required to be mounted as a fixed structure, the end part of the limiting threaded pin 16 is screwed into the blind hole on the connecting rod 17, the nylon slide sleeve 15 is fixed with the connecting rod 17, and the sliding/fixed rod assembly 3 is limited to be fixed through the hardware fitting assembly 2 at the end part of a pipe nut; when the whole set of hardware fitting is required to be installed into a sliding structure, the end part of the limiting threaded pin 16 exits from the blind hole on the connecting rod 17, and the connecting rod 17 can relatively slide in the nylon sliding sleeve 15, so that the tubular busbar 6 can slide in a certain range along the axial direction. Meanwhile, a clamping groove is designed at the tail part of the connecting rod 17, and when a damping wire needs to be installed in the tubular bus 6, a special damping wire clamp 18 can be installed at the clamping groove at the tail part of the connecting rod 17.
The equipment terminal mounting plate 4 is used for connection between the slide/fixing lever assembly 3 and the equipment terminals 8, and is formed by assembling and welding an L-plate 19 and a connector 20 as shown in fig. 10 and 11. The L plate 19 is provided with a connecting hole matched with the equipment terminal 8, one end of the connector 20 is welded with the L plate 19 into a whole, the other end of the connector is connected with the connecting rod 17, the mechanical connection between the tubular bus 6 and the equipment terminal 8 is integrally realized, and the connecting joint is rotatable so as to facilitate on-site adjustment and meet the installation requirement.
The invention forms a whole set of hardware fitting through the four parts of the overcurrent hardware fitting assembly 1, the pipe bus end part hardware fitting assembly 2, the sliding/fixing rod assembly 3 and the equipment terminal mounting plate 4, thereby realizing overcurrent and mechanical connection. All through bolted connection, guaranteed overcurrent and mechanical connection between tubular busbar 6 and the equipment between the four parts, effectually reached the anti-corona purpose, and simple to operate, detachable satisfies the requirement in engineering performance and the construction installation.
Claims (8)
1. The utility model provides a slip/fixed connection overcurrent fitting for convertor station which characterized in that: the device comprises an overcurrent hardware fitting assembly, a pipe female end hardware fitting assembly, a sliding/fixing rod assembly and an equipment terminal mounting plate;
the two ends of the overcurrent fitting assembly are used for connecting a pipe bus with equipment terminals to realize overcurrent connection between the pipe bus and the equipment;
the tubular busbar end fitting assembly comprises a tubular busbar end fitting body, wherein the tubular busbar end fitting body is fixed at the end of the tubular busbar;
the sliding/fixing rod assembly comprises a connecting rod, one end of the connecting rod is provided with an insulating sliding disc and extends into the tubular bus, and the other end of the connecting rod is connected with the equipment terminal mounting plate; an insulating sliding sleeve is sleeved on the connecting rod, and one end of the insulating sliding sleeve is fixed at one end of the tubular busbar end fitting body; the insulating sliding sleeve is provided with a threaded hole, and a blind hole is formed in the connecting rod at a position corresponding to the threaded hole;
the device terminal mounting plate is connected with the device terminal.
2. The overcurrent fitting according to claim 1, wherein: the overcurrent hardware assembly comprises a tube busbar overcurrent hardware body, a terminal overcurrent hardware and an aluminum stranded wire;
the aluminum stranded wires are arc-shaped;
and two ends of the aluminum stranded wire are respectively connected with the tubular busbar overcurrent fitting body and the terminal overcurrent fitting.
3. The overcurrent fitting according to claim 2, wherein: the pipe bus overcurrent fitting body is sleeved on the pipe bus;
the terminal overcurrent fitting is connected with the equipment terminal through a bolt.
4. The overcurrent fitting according to any one of claims 1-3, wherein: the tubular bus end fitting body is connected with the tubular bus through bolts;
the end part of the tubular bus end fitting body is provided with a mounting hole for fixing the insulating sliding sleeve.
5. The overcurrent fitting according to any one of claims 1-4, wherein: the connecting rod is in threaded connection with the insulating sliding disc;
the connecting rod is connected with the equipment terminal mounting plate through bolts.
6. The overcurrent fitting according to any one of claims 1-5, wherein: the two ends of the insulating sliding sleeve along the axial direction of the connecting rod are provided with the threaded holes.
7. The overcurrent fitting according to any one of claims 1-6, wherein: the insulating sliding disc is a nylon sliding disc;
the insulating sliding sleeve is a nylon sliding sleeve.
8. The overcurrent fitting according to any one of claims 1-7, wherein: the equipment terminal mounting plate comprises an L plate and a connector;
one end plate of the L-shaped plate is connected with the connector, and the other end plate is connected with the equipment terminal;
the other end of the connector is connected with the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903471.2A CN107959272B (en) | 2016-10-17 | 2016-10-17 | Sliding/fixed connection overcurrent fitting for convertor station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903471.2A CN107959272B (en) | 2016-10-17 | 2016-10-17 | Sliding/fixed connection overcurrent fitting for convertor station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107959272A CN107959272A (en) | 2018-04-24 |
| CN107959272B true CN107959272B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610903471.2A Active CN107959272B (en) | 2016-10-17 | 2016-10-17 | Sliding/fixed connection overcurrent fitting for convertor station |
Country Status (1)
| Country | Link |
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| CN (1) | CN107959272B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010198979A (en) * | 2009-02-26 | 2010-09-09 | Hitachi Cable Ltd | Conductor connecting structure |
| CN202930882U (en) * | 2012-11-29 | 2013-05-08 | 南京特瑞线路器材有限公司 | Ice-melting bus bridge slipping telescoping fitting |
| CN103855484A (en) * | 2014-03-19 | 2014-06-11 | 无锡开辟科技有限公司 | Flameproof type fixed insulating bus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658992Y (en) * | 2003-09-26 | 2004-11-24 | 江都市曙光电力器材有限公司 | Adjustable road-crossing hardware fitting |
| CN2938509Y (en) * | 2006-07-27 | 2007-08-22 | 锦州力德电气有限公司 | Damping connecting armour clamp for conduit bus between large superelevator equipment |
| US7862356B1 (en) * | 2009-11-17 | 2011-01-04 | O'leary Timothy | Busway water resistant joint pack or plug-in unit joint |
| JP5761108B2 (en) * | 2012-04-06 | 2015-08-12 | 日立金属株式会社 | Solid insulation bus termination connection |
| CN203690131U (en) * | 2013-12-10 | 2014-07-02 | 国家电网公司 | Grounding knife static contact fitting for 800kV converter station low-end valve hall |
| CN206332409U (en) * | 2016-10-17 | 2017-07-14 | 国家电网公司 | A kind of current conversion station is with sliding/be fixedly connected excessively stream gold utensil |
-
2016
- 2016-10-17 CN CN201610903471.2A patent/CN107959272B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010198979A (en) * | 2009-02-26 | 2010-09-09 | Hitachi Cable Ltd | Conductor connecting structure |
| CN202930882U (en) * | 2012-11-29 | 2013-05-08 | 南京特瑞线路器材有限公司 | Ice-melting bus bridge slipping telescoping fitting |
| CN103855484A (en) * | 2014-03-19 | 2014-06-11 | 无锡开辟科技有限公司 | Flameproof type fixed insulating bus |
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| Publication number | Publication date |
|---|---|
| CN107959272A (en) | 2018-04-24 |
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