CN111129890A - A three-phase conductor commutation joint - Google Patents
A three-phase conductor commutation joint Download PDFInfo
- Publication number
- CN111129890A CN111129890A CN201911192322.XA CN201911192322A CN111129890A CN 111129890 A CN111129890 A CN 111129890A CN 201911192322 A CN201911192322 A CN 201911192322A CN 111129890 A CN111129890 A CN 111129890A
- Authority
- CN
- China
- Prior art keywords
- phase
- conductor
- phase conductor
- conductors
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- 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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
- H01R13/642—Means for preventing incorrect coupling by position or shape of contact members
-
- 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
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
本发明涉及一种三相导体换相接头，包括密封筒体和安装在密封筒体两端的密封法兰，两密封法兰上均设有三个转接嵌件，两个密封法兰上的转接嵌件沿延伸方向相同的直线布置；密封筒体中设有三相导体，三相导体的两端分别对应连接两个密封法兰上的三个转接嵌件；三相导体中处于两侧的两相导体均具有弯折段，而使这两相导体中每相导体两端分别连接两个密封法兰上的处于密封筒体轴线两侧的两个转接嵌件。这样设置，能够在三相导体换相接头两端的三相排布方式相同的情况下，实现A、C相的相序互换，在实际使用时，直接将三相导体换相接头安装在设备的三相接口处即实现A、C相的相序互换，从而实现三相不同相序设备的连接。
The invention relates to a three-phase conductor commutation joint, which comprises a sealing cylinder and sealing flanges installed at both ends of the sealing cylinder. Three transfer inserts are arranged on the two sealing flanges. The connecting inserts are arranged in a straight line with the same extending direction; there are three-phase conductors in the sealing cylinder, and the two ends of the three-phase conductors are respectively connected to the three transfer inserts on the two sealing flanges; the three-phase conductors are located on both sides. The two-phase conductors of the two-phase conductors have bending sections, so that the two ends of each phase conductor in the two-phase conductors are respectively connected to the two transfer inserts on both sides of the sealing cylinder axis on the two sealing flanges. In this way, the phase sequence of the A and C phases can be exchanged under the condition that the three-phase arrangement at both ends of the three-phase conductor commutation joint is the same. In actual use, the three-phase conductor commutation joint can be directly installed on the equipment. At the three-phase interface, the phase sequence exchange of A and C phases is realized, so as to realize the connection of three-phase devices with different phase sequences.
Description
Technical Field
The invention relates to a three-phase conductor phase-change connector.
Background
Most of gas-insulated metal-enclosed switchgear on the market today is designed to be three-phase common-box type, and the arrangement mode of three-phase conductors has two types of triangle and straight line, wherein the gas-insulated metal-enclosed switchgear that the three-phase is arranged in a straight line is gradually accepted by the market because of its simple structure, advantages such as high three-phase spare part universal ratio. However, in practical use of the structure in which three phases are arranged in a line, the phase sequence of A, C phases in which three phases are arranged in a line sometimes needs to be exchanged (for example, when two sets of devices to be connected together adopt a horizontal line arrangement of three phases, however, A, C phases are different), and at present, there is no good way to realize the phase sequence exchange.
Disclosure of Invention
The invention aims to provide a three-phase conductor phase-change connector to solve the problem that in the prior art, three-phase gas-insulated metal-enclosed switchgear with linear arrangement cannot realize phase sequence interchange.
In order to achieve the purpose, the technical scheme of the three-phase conductor phase-change connector is as follows:
three-phase conductor commutation connects includes:
the sealing cylinder comprises a cylinder body and sealing flanges which are hermetically connected to two ends of the cylinder body, wherein three switching inserts are arranged on the two sealing flanges, the three switching inserts on each sealing flange are linearly arranged, and the straight line of the three switching inserts on one sealing flange is parallel to the straight line of the three switching inserts on the other sealing flange;
the three-phase conductor is positioned in the sealing cylinder, and two ends of the three-phase conductor are respectively and correspondingly connected with the three switching inserts on the two sealing flanges;
two phase conductors on two sides in the three-phase conductors are provided with bent sections, so that two ends of each phase conductor in the two phase conductors are respectively connected with two switching inserts on two sealing flanges and on two sides of the axis of the sealing cylinder.
The invention has the beneficial effects that: through the bending sections of the two-phase conductors on two sides in the three-phase conductors, two ends of each phase conductor in the two-phase conductors are respectively connected with the two switching inserts on the two sealing flanges and on two sides of the axis of the sealing cylinder, under the condition that three-phase arrangement modes at two ends of a three-phase conductor phase change connector are the same, A, C-phase sequence interchange is realized, and in practical use, the A, C-phase sequence interchange is realized by directly installing the three-phase conductor phase change connector at a three-phase interface of equipment, so that the connection of three-phase equipment with different phase sequences is realized.
Further, in the three-phase conductors, the conductor in the middle is linear, and the conductors on both sides are symmetrical with respect to the axis of the conductor in the middle. The conductor structures on two sides are the same due to the arrangement, unified processing is facilitated, mutual replacement can be achieved during installation, and misassembly is prevented.
Furthermore, the three-phase conductors are all arranged in sections, a sliding insertion structure is arranged between at least one adjacent section of each phase of conductor, and insertion connection capable of sliding relatively in the length direction is achieved through the sliding insertion structure. But adopt the segmentation to set up simultaneously through the slip grafting structure messenger between the adjacent section relative slip in length direction, can realize the regulation to three-phase conductor total length, when the assembly, can the adaptation seal the installation of barrel both ends sealing flange, compensate the error that machining precision and assembly brought, and then guarantee that three-phase conductor commutation connects and has good leakproofness after the assembly is accomplished.
Furthermore, the two-phase conductors on the two sides are equally divided into three sections, of the three sections, the two sections at the two ends in the axial direction are the bending sections, the straight section is located in the middle, and the two bending sections are identical in structure. The two bending sections are set to be identical in structure under the condition of sectional setting, so that unified processing is facilitated, and misassembly is prevented.
Furthermore, the sliding insertion structure is arranged in the two phase conductors at the two sides and is arranged at the end part of one end of the bending section, which is in butt joint with the straight line section. Install slip grafting structure on the buckle section, compare in installing slip grafting structure on the straightway, can avoid add on the buckle section be used for with slip grafting structure cartridge complex straightway, simplify the structure.
Furthermore, the sliding plug structure is a sliding contact seat, a threaded hole is processed at one end of the bending section, the sliding contact seat is installed through a bolt penetrating in the threaded hole, a stepped counter bore is processed at the other end of the bending section, and the corresponding switching insert is connected through the bolt penetrating in the stepped counter bore. The threaded hole is easy to process, and the bolt is matched with the threaded hole to be connected with the sliding contact seat, so that the connection is reliable; the stepped counter bore can shield the bolt, thereby avoiding affecting the electrical performance.
Furthermore, in the three-phase conductor, the conductor in the middle is arranged in three sections, and in the three sections included in the middle conductor, the straight line section in the middle has the same structure as the straight line sections in the middle of the two-phase conductors on the two sides. The structure that has realized the interlude of intermediate conductor like this and be in the interlude of both sides conductor is unified, and convenient processing just can prevent the mistake and adorn.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of a three-phase conductor phase-change connector of the invention;
FIG. 2 is a schematic view of a bent section in an embodiment 1 of the phase change connector of the three-phase conductor of the present invention;
FIG. 3 is a cross-sectional view of a bent-section slider connection end in embodiment 1 of the phase change connector for three-phase conductors according to the present invention;
FIG. 4 is a cross-sectional view of the insert connecting end of the bent section of embodiment 1 of the phase change connector of the three-phase conductor of the invention;
FIG. 5 is a partial structural schematic diagram of the conductor of phase A in embodiment 2 of the phase change connector of the three-phase conductor of the invention;
in the figure: the device comprises a sealing cylinder body 1, a sealing flange 2, a switching insert 3, a bending section 4, an insert connecting end 41, a stepped counter bore 411, a contact seat connecting end 42, a threaded hole 421, a sliding contact seat 5, an A-A phase conductor, a B-B phase conductor and a C-C phase conductor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
In a specific embodiment 1 of the three-phase conductor phase-change connector of the present invention, as shown in fig. 1, the three-phase conductor phase-change connector includes a sealing cylinder 1, sealing flanges 2 are respectively disposed at left and right ends of the sealing cylinder 1, three adaptor inserts 3 are disposed on the sealing flange 2 at the left end and the sealing flange 2 at the right end, and the adaptor inserts 3 on the two sealing flanges 2 are linearly arranged along the same extending direction.
Be provided with the three-phase conductor in the sealed barrel 1, the three-phase conductor is including being located the middle B phase conductor, and be located A phase conductor and the C phase conductor of B phase conductor both sides, in this embodiment, A, B, C three-phase conductor comprises the three-section, middle B phase conductor becomes straight line shape, including three-section straightway, the A phase conductor and the C phase conductor of both sides all include one and are located the middle straightway and two kinks 4 that are located both ends, kinks 4 and the straightway structure of A phase conductor and C phase conductor are the same, can be general, can not the mistake in installation during the use, A, C two-phase conductor overall structure is also the same after the equipment, and be symmetrical about the axis of B phase conductor. A. The structure of the middle straight line segment of the C-phase conductor is the same as that of the middle straight line segment of the B-phase conductor, so that the structure can be further unified, and the processing is convenient.
A. B, C three sections of three-phase conductors are connected through a sliding contact seat 5, after connection, the end part of the A, B, C three-phase conductor close to one side of the right end sealing flange 2 is connected with three switching inserts 3 horizontally arranged on the right end sealing flange 2 from top to bottom to form an A phase, a B phase and a C phase, the bent sections at the two ends of the A phase conductor and the C phase conductor enable the two ends of the A, C two-phase conductor to respectively correspond to the two switching inserts 3 on the two sealing flanges 2 and located at the two sides of the axis of the sealing cylinder 1, the end part of the three-phase conductor close to the left end sealing flange 2 is connected with the three switching inserts 3 vertically arranged on the left end sealing flange 2 from top to bottom to form a C phase, a phase and a phase. It should be noted that the description from top to bottom in the above description is only for the three-phase conductor phase-change connector in the state of fig. 1, and does not limit that the switching insert and the end of the three-phase conductor must be arranged from top to bottom in use.
The connection mode of the three-phase conductor divided into three sections and the sliding contact base 5 is described by taking the A-phase conductor as an example: as shown in fig. 2 and fig. 3, two ends of the bending section 4 respectively form an insert connecting end 41 connected to the corresponding adapter insert and a contact base connecting end 42 connected to the sliding contact base 5, wherein the contact base connecting end 42 is processed with a threaded hole 421, and is connected to the sliding contact base 5 through a bolt inserted into the threaded hole, and one end of the straight line segment of the a-phase conductor is directly inserted into the sliding contact base 5 to be in guiding insertion fit with the sliding contact base 5. The connection mode of the three conductors of the B phase and the C phase with the sliding contact seat 5 is the same as that of the conductor of the A phase, and both adopt the mode that a threaded hole is arranged on one conductor to be connected with the sliding contact seat 5, and one end of the other conductor is directly inserted into the sliding contact seat 5 to be in guiding insertion fit with the sliding contact seat 5. Sliding contact seat 5 has constituted the slip grafting structure, and when using, the direction cartridge can change the depth of insertion and adjust A, B, C three-phase conductor's overall length at the straightway in sliding contact seat 5, and the error that compensation machining precision and assembly brought can the adaptation seal the installation of barrel both ends sealing flange, and then guarantees that three-phase conductor commutation connects and has good leakproofness after the assembly is accomplished.
Referring to fig. 4, in the present embodiment, the insert connecting end 41 of the bent section 4 is processed with a stepped counterbore 411, the corresponding adaptor insert 3 is connected by a bolt penetrating in the stepped counterbore, and the straight line sections at the two ends of the B-phase conductor, the bent section 4 of the A, C-phase conductor and the corresponding adaptor insert 3 are connected in this way in the present embodiment.
The embodiment 5 of the phase change joint of the three-phase conductors is different from the embodiment 1 in that the three-phase conductors are of an integrated structure, the switching insert is provided with the sliding contact seat, the end part of one side, close to the sliding contact seat, of each three-phase conductor is provided with the insertion straight line section matched with the sliding contact seat, and the length of the insertion straight line section meets the requirements of insertion conduction and error compensation. The number of parts is reduced, and the structure is simpler.
In other embodiments, the A, B, C three-phase conductor may be segmented into more than three segments, and in other embodiments that employ segmented arrangement, there is no need to provide a sliding plug structure for each adjacent segment as in embodiment 1, but at least one of the adjacent segments is connected together by a sliding plug structure to compensate for errors by sliding plug.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192322.XA CN111129890B (en) | 2019-11-28 | 2019-11-28 | Three-phase conductor phase-change connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192322.XA CN111129890B (en) | 2019-11-28 | 2019-11-28 | Three-phase conductor phase-change connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111129890A true CN111129890A (en) | 2020-05-08 |
| CN111129890B CN111129890B (en) | 2021-05-14 |
Family
ID=70496958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911192322.XA Active CN111129890B (en) | 2019-11-28 | 2019-11-28 | Three-phase conductor phase-change connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111129890B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4224650A1 (en) * | 2022-02-02 | 2023-08-09 | Hitachi Energy Switzerland AG | Adaptation module for a gas-insulated switchgear |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3550962B2 (en) * | 1997-08-07 | 2004-08-04 | 株式会社日立製作所 | Gas insulated busbar and gas insulated switchgear |
| CN202395375U (en) * | 2011-12-16 | 2012-08-22 | 中国西电电气股份有限公司 | GIS (Global Information System) multipurpose three-way conductor connecting device |
| CN203445506U (en) * | 2013-09-16 | 2014-02-19 | 山东泰开高压开关有限公司 | Connecting device of split cabinet-type gas insulated switchgear (GIS) and shared box-type gas insulated switchgear (GIS) |
| CN103647224A (en) * | 2013-11-14 | 2014-03-19 | 河南平高东芝高压开关有限公司 | All-optical current mutual-inductor device connecting three-phase box-sharing combination electric appliance |
| US20140118885A1 (en) * | 2012-11-01 | 2014-05-01 | Lsis Co., Ltd. | Structure of three-phase integrated bus in gas insulated switchgear |
| CN203734198U (en) * | 2013-11-19 | 2014-07-23 | 川开电气股份有限公司 | Internal phase change structure of GIS equipment |
| CN204068136U (en) * | 2014-07-24 | 2014-12-31 | Abb技术有限公司 | Solid insulated transfer busbars and gas insulated switchgear |
| CN106848910A (en) * | 2017-04-25 | 2017-06-13 | 川开电气有限公司 | A kind of GIS inside commutation transposition structure |
| CN110047692A (en) * | 2019-04-11 | 2019-07-23 | 平高集团有限公司 | The electric switch and its middle phase conductor component of three-phase combined type arrangement |
-
2019
- 2019-11-28 CN CN201911192322.XA patent/CN111129890B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3550962B2 (en) * | 1997-08-07 | 2004-08-04 | 株式会社日立製作所 | Gas insulated busbar and gas insulated switchgear |
| CN202395375U (en) * | 2011-12-16 | 2012-08-22 | 中国西电电气股份有限公司 | GIS (Global Information System) multipurpose three-way conductor connecting device |
| US20140118885A1 (en) * | 2012-11-01 | 2014-05-01 | Lsis Co., Ltd. | Structure of three-phase integrated bus in gas insulated switchgear |
| CN203445506U (en) * | 2013-09-16 | 2014-02-19 | 山东泰开高压开关有限公司 | Connecting device of split cabinet-type gas insulated switchgear (GIS) and shared box-type gas insulated switchgear (GIS) |
| CN103647224A (en) * | 2013-11-14 | 2014-03-19 | 河南平高东芝高压开关有限公司 | All-optical current mutual-inductor device connecting three-phase box-sharing combination electric appliance |
| CN203734198U (en) * | 2013-11-19 | 2014-07-23 | 川开电气股份有限公司 | Internal phase change structure of GIS equipment |
| CN204068136U (en) * | 2014-07-24 | 2014-12-31 | Abb技术有限公司 | Solid insulated transfer busbars and gas insulated switchgear |
| CN106848910A (en) * | 2017-04-25 | 2017-06-13 | 川开电气有限公司 | A kind of GIS inside commutation transposition structure |
| CN110047692A (en) * | 2019-04-11 | 2019-07-23 | 平高集团有限公司 | The electric switch and its middle phase conductor component of three-phase combined type arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4224650A1 (en) * | 2022-02-02 | 2023-08-09 | Hitachi Energy Switzerland AG | Adaptation module for a gas-insulated switchgear |
| US12368287B2 (en) | 2022-02-02 | 2025-07-22 | Hitachi Energy Ltd | Adaptation module for a gas-insulated switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111129890B (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3112078C2 (en) | Hybrid connector for optical and electrical conductors | |
| JPS635396Y2 (en) | ||
| BR112012029627B1 (en) | adapter and method for coupling together | |
| HU208197B (en) | Terminal for plastic insulated high-voltage cable, as well as arrangement and method for connecting cable to cable and cable joint bar | |
| US10027071B2 (en) | Cable connection device | |
| US9979146B2 (en) | Connector housing assembly and electrical connector assembly | |
| CN111129890B (en) | Three-phase conductor phase-change connector | |
| US4054743A (en) | Fluid assisted installation of electrical cable accessories | |
| CN104635056B (en) | A kind of method for calculating three-core cable transition joint aluminium hydraulic pressed connecting pipe contact resistance | |
| CN108258476B (en) | Bent radio frequency coaxial connector | |
| CN114765357B (en) | Bus combined unit | |
| CN111129892B (en) | Three-phase conductor adapter | |
| CN219799652U (en) | Withstand voltage test auxiliary fixtures of insulation resistance medium | |
| CN116388109A (en) | Interface protection type external cable intermediate joint | |
| US4381424A (en) | Multi-core cable connection for medium voltage cable | |
| CN223599111U (en) | High-sealing connector | |
| CN222233378U (en) | Combined connection type electric porcelain insulator | |
| CN215600315U (en) | Bus adapter | |
| US20240291197A1 (en) | Touch protection cover, connection member, module connector and battery system | |
| CN115995721B (en) | Management and control connector convenient to join in marriage net transformer safety and low pressure photovoltaic | |
| CN222508068U (en) | A busbar connector and a busbar connector assembly | |
| CN112886323B (en) | Intermediate connection device and method for insulated tubular busbars in railway traction power supply systems | |
| CN223612153U (en) | A conductor insulation sheath | |
| CN215600314U (en) | Bus adapter | |
| CN216389762U (en) | Cable connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |