CN216719697U - Short-circuit device for secondary terminal of current transformer - Google Patents
Short-circuit device for secondary terminal of current transformer Download PDFInfo
- Publication number
- CN216719697U CN216719697U CN202220007352.XU CN202220007352U CN216719697U CN 216719697 U CN216719697 U CN 216719697U CN 202220007352 U CN202220007352 U CN 202220007352U CN 216719697 U CN216719697 U CN 216719697U
- Authority
- CN
- China
- Prior art keywords
- slide rail
- current transformer
- secondary terminal
- metal slide
- short circuit
- 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.)
- Active
Links
Images
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The utility model discloses a short circuit device for a secondary terminal of a current transformer, which comprises an insulating shell and a connecting mechanism arranged in the insulating shell, wherein the connecting mechanism comprises a metal slide rail, at least three connecting pieces which can be transversely movably arranged on the metal slide rail, an adjusting piece which is connected with the connecting pieces and used for fixing the connecting pieces at preset positions and a short circuit test interface which is connected with the metal slide rail, the position of the connecting pieces can be adjusted to implement various types of short circuit terminal row jacks, the flexibility is presented in the short circuit process of some irregular terminals, the short circuit topology is easier to realize, the operation is simple, the multi-phase simultaneous reliable short circuit can be realized, the short circuit operation efficiency and reliability are improved, and the personal safety of professionals is ensured.
Description
Technical Field
The utility model relates to the technical field of nuclear power detection, in particular to a short-circuit device for a secondary terminal of a current transformer.
Background
In the fault processing process of the secondary circuit of the current transformer, the terminal of the current transformer needs to be short-circuited in a current terminal box. The traditional short circuit mode generally comprises a short circuit connection piece and a test line short circuit mode. The short-circuit connection piece short-circuit mode needs to trim short connection pieces according to the single short-circuit requirement, and has the defects of poor universality and difficulty in installation; the test wire short circuit mode generally adopts the root line short circuit one by one, often can cause phase splitting short circuit in-process three-phase current unbalanced, and under the single line broken string condition, can cause the current loop open circuit, produces overvoltage, endangers the risk of personal safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a short-circuit device for a secondary terminal of a current transformer.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a structure current transformer secondary terminal short circuit device, including insulating casing, install in coupling mechanism in the insulating casing, coupling mechanism include the metal slide rail, but lateral shifting install in but at least three connecting piece on the metal slide rail, with the connecting piece is connected be used for with the connecting piece is fixed at preset position's regulating part and with the short circuit test interface of metal sliding rail connection.
Preferably, the metal slide rail is provided with a slide groove penetrating through the upper surface and the lower surface of the metal slide rail;
the connecting piece comprises a main body part, a positioning part arranged at the upper end of the main body part and a connecting part arranged at the lower end of the main body part;
the positioning part is arranged on the upper periphery of the sliding groove, and the interface part is arranged on the lower periphery of the sliding groove; and the bottom of the insulating shell is provided with a through hole for exposing the interface part.
Preferably, the positioning part is provided with a threaded hole;
the adjusting piece comprises an operating part and an adjusting rod which is connected with the operating part and penetrates through the threaded hole; the operating part is arranged at the periphery of the insulating shell;
the adjusting rod is abutted against the upper periphery of the metal slide rail to fix the connecting piece, and when the adjusting rod is far away from the upper periphery of the metal slide rail, the connecting piece can transversely move along the sliding groove to adjust the position of the connecting piece.
Preferably, the upper periphery of the metal slide rail is further provided with a guide groove for positioning and guiding the end part of the adjusting rod.
Preferably, the inner wall of the sliding chute is further provided with a limiting block matched with the main body part.
Preferably, the main body part is provided with a step structure matched with the limiting block.
Preferably, the metal slide rail is further provided with a through groove penetrating through the opposite side faces of the metal slide rail;
the main body part is also provided with a limiting column positioned in the through groove.
Preferably, the short circuit test interface comprises a support arranged on the metal slide rail, and the support is provided with a connecting groove with an upward opening;
the insulating shell is provided with a columnar connecting cylinder corresponding to the support.
Preferably, the metal slide rail comprises a first mounting part and a second mounting part which are detachably combined together.
Preferably, the insulating housing includes a case and an end plate detachably connected to the case.
The implementation of the utility model has the following beneficial effects: this current transformer secondary terminal short circuit device includes insulating casing, install the coupling mechanism in insulating casing, coupling mechanism includes the metal slide rail, but lateral shifting installs at least three connecting piece on the metal slide rail, be connected with the connecting piece and be used for fixing the connecting piece at predetermined position's regulating part and with metal slide rail connection's short circuit test interface, its position that can the regulating part, in order to carry out multiple type short circuit terminal row jack, and present the flexibility at some anomalous terminal short circuit in-process, the short circuit is extended and is also changeed the realization, the operation is simple, can realize heterogeneous reliable short circuit simultaneously, improve short circuit operating efficiency and reliability, ensure professional personal safety.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a current transformer secondary terminal shorting device according to some embodiments of the present disclosure;
FIG. 2 is a schematic diagram of a bottom structure of a current transformer secondary terminal shorting device according to some embodiments of the present disclosure;
FIG. 3 is an exploded view of a current transformer secondary terminal shorting device according to some embodiments of the present invention;
FIGS. 4-5 are schematic structural views of a coupling mechanism according to some embodiments of the present invention;
FIG. 6 is a schematic view of a metal slide rail according to some embodiments of the present invention
FIG. 7 is a schematic structural view of a connector according to some embodiments of the present invention;
fig. 8 is a schematic structural view of a connector according to another embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Referring to fig. 1 to 4, a short circuit device for a secondary terminal of a current transformer according to some embodiments of the present invention includes an insulating housing 1, and a connecting mechanism 2 installed in the insulating housing 1, where the connecting mechanism 2 includes a metal slide rail 21, at least three connecting members 22 installed on the metal slide rail 21 in a laterally movable manner, an adjusting member 23 connected to the connecting members 22 for fixing the connecting members 22 at predetermined positions, and a short circuit testing interface 24 connected to the metal slide rail 21.
In this embodiment, the insulating housing 1 may include a housing 11 and an end plate 12 detachably connected to the housing 11, an inner cavity of the housing 11 forms a receiving groove for the connection mechanism 2 to be installed, and the housing 11 and the end plate 12 may be fixed by a screw or the like. The insulating housing 1 may be made of plastic.
As shown in fig. 4 to 8, in the present embodiment, the metal slide rail 21 is provided with a sliding slot 213 penetrating through the upper and lower surfaces thereof, and in the present embodiment, the metal slide rail 21 includes a first mounting portion 211 and a second mounting portion 212 which are detachably combined together, and the first mounting portion 211 and the second mounting portion 212 may be fastened together by a fastener, such as a screw or a bolt, and may be assembled together by a fastener after the connecting member 22 is mounted. Preferably, the inner periphery of the housing 11 may be provided with a bearing structure to cooperate with the structure of the metal slide rail 21 to support and limit the metal slide rail 21.
The connecting member 22 includes a main body 221, a positioning portion 222 disposed at an upper end of the main body 221, and a connecting portion 223 disposed at a lower end of the main body 221, wherein the positioning portion 222 is disposed at an upper periphery of the sliding slot 213, the connecting portion 223 is disposed at a lower periphery of the sliding slot 213, and cross-sectional areas of the positioning portion 222 and the connecting portion 223 are larger than that of the main body 221, so that the positioning portion 222 and the connecting portion 223 can be respectively disposed on upper and lower surfaces of the metal slide rail 21 to perform a limiting function. Preferably, the interface part 223 can freely assemble banana heads with diameter of 4mm and length of 10mm, and understandably, the contact points of the banana heads are installed, and the distance between the banana plugs can be adjusted by the adjusting part 23 to adapt to the jacks of the terminal row to be short-circuited. The banana plug of confirming the interval is screwed by adjusting part 23, realizes the fixed of plug position, and the banana head can insert the terminal row jack of treating the short circuit, realizes the reliable short circuit of multiple spot simultaneously.
The bottom of the insulating housing 1 is provided with a through hole 111 exposing the interface portion 223, and the through hole 111 may be formed through the bottom of the housing 11.
Preferably, the positioning portion 222 is provided with a threaded hole 2221, the adjusting member 23 includes an operating portion 231 and an adjusting rod 232 connected to the operating portion 231 and passing through the threaded hole 2221, the operating portion 231 is disposed at the outer periphery of the insulating housing 1, the insulating housing 1 may be provided at the upper periphery thereof with an elongated movable hole 113, the extending direction of the movable hole 113 corresponds to the sliding slot 213, and the adjusting rod 232 passes through the movable hole 113 and is engaged with the threaded hole 2221. The adjustment rod 232 may be a threaded rod that is threadedly coupled to the threaded aperture 2221. Preferably, the upper circumference of the metal slide rail 21 is further provided with a guide groove 2111 for positioning and guiding the end of the adjustment rod 232, and the adjustment rod 232 is inserted into the threaded hole 2221 and then can be abutted against the bottom surface of the guide groove 2111.
The adjusting rod 232 abuts against the upper periphery of the metal slide rail 21 to fix the connecting member 22, and when the adjusting rod 232 is far away from the upper periphery of the metal slide rail 21, the connecting member 22 can move transversely along the sliding groove 213 to adjust the position of the connecting member 22.
Preferably, the inner wall of the sliding groove 213 is further provided with a stopper 2112 engaged with the body portion 221, and the stopper 2112 may be formed on the first mounting portion 211 and is used for stopping the body portion 221 from displacing.
Further, referring to fig. 8, in some embodiments, the main body 221 is provided with a step 2212 engaged with the stopper 2112 to engage with the stopper 2112, and the like, in this embodiment, the connecting element 22 shown in fig. 7 may be disposed in the middle of two connecting elements 22 shown in fig. 8, that is, the connecting element 22 shown in fig. 7 may be disposed in the middle, and the connecting elements 22 shown in fig. 8 are disposed at both ends.
In this embodiment, the metal slide rail 21 further has a through slot 214 penetrating through opposite side surfaces thereof, and the main body 221 further has a limiting column 2211 located in the through slot 214. Of course, in some embodiments, the position-limiting column 2211 may not be provided.
In this embodiment, the short test interface 24 includes a support 241 disposed on the metal slide rail 21, the support 241 is provided with a connecting slot 242 opening upward, and the insulating housing 1 is provided with a cylindrical connecting cylinder 112 corresponding to the support 241. The support 241 may be formed on the upper circumference of the second mounting portion 212. In some embodiments, the shorting test interface 24 may be a cylindrical socket with a diameter of 4mm and a depth of 10 mm. The cylindrical jack can realize irregular terminal short circuit, for example, N phase far away from A/B/C phase can not be short-circuited together through the three interface parts 223, but through the cylindrical jack, N phase and A/B/C phase can be short-circuited by using a special connecting wire. For multipoint short circuit, the short circuit of jacks above a plurality of sets of tools can flexibly realize short circuit expansion.
The position of the connecting piece can be adjusted by the current transformer secondary terminal short-circuit device, various types of short-circuit terminal row jacks are implemented, flexibility is presented in the short-circuit process of irregular terminals, short-circuit development is easier to achieve, the operation is simple, multi-phase simultaneous reliable short-circuit can be achieved, the short-circuit operation efficiency and reliability are improved, and the personal safety of professionals is guaranteed.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a current transformer secondary terminal short circuit device, characterized in that, including insulating casing (1), install in coupling mechanism (2) in insulating casing (1), coupling mechanism (2) including metal slide rail (21), but lateral shifting install in at least three connecting piece (22) on metal slide rail (21), with connecting piece (22) are connected be used for with connecting piece (22) fix regulating part (23) at preset position and with short circuit test interface (24) that metal slide rail (21) are connected.
2. The current transformer secondary terminal short-circuiting device according to claim 1, wherein said metal slide rail (21) is provided with a chute (213) penetrating upper and lower surfaces thereof;
the connecting piece (22) comprises a main body part (221), a positioning part (222) arranged at the upper end of the main body part (221) and a connecting part (223) arranged at the lower end of the main body part (221);
the positioning part (222) is arranged at the upper periphery of the sliding groove (213), and the interface part (223) is arranged at the lower periphery of the sliding groove (213); the bottom of the insulating shell (1) is provided with a through hole (111) for exposing the interface part (223).
3. The current transformer secondary terminal shorting device according to claim 2, wherein the positioning portion (222) is provided with a threaded hole (2221);
the adjusting piece (23) comprises an operating part (231) and an adjusting rod (232) which is connected with the operating part (231) and is arranged in the threaded hole (2221) in a penetrating way; the operating part (231) is arranged at the periphery of the insulating shell (1);
the adjusting rod (232) is abutted against the upper periphery of the metal sliding rail (21) to fix the connecting piece (22), and when the adjusting rod (232) is far away from the upper periphery of the metal sliding rail (21), the connecting piece (22) can transversely move along the sliding groove (213) to adjust the position of the connecting piece (22).
4. The current transformer secondary terminal short-circuiting device according to claim 3, wherein the upper periphery of said metal slide rail (21) is further provided with a guide groove (2111) for positioning and guiding the end of said adjusting rod (232).
5. The short circuit device for the secondary terminal of the current transformer according to claim 3, wherein a limiting block (2112) matched with the main body part (221) is further arranged on the inner wall of the chute (213).
6. The current transformer secondary terminal short-circuiting device according to claim 5, wherein said main body portion (221) is provided with a step structure fitted with said stopper (2112).
7. The current transformer secondary terminal short-circuiting device according to claim 2, wherein said metal slide rail (21) is further provided with a through slot (214) passing through opposite side faces thereof;
the main body part (221) is further provided with a limiting column (2211) positioned in the through groove (214).
8. The current transformer secondary terminal short-circuiting device according to any one of claims 2 to 7, wherein said short-circuiting test interface (24) comprises a support (241) provided on said metal slide rail (21), said support (241) being provided with a connecting groove (242) opening upward;
the insulating shell (1) is provided with a columnar connecting cylinder (112) corresponding to the support (241).
9. The current transformer secondary terminal shorting device according to claim 2, wherein the metal slide rail (21) comprises a first mounting part (211) and a second mounting part (212) which are detachably combined together.
10. The current transformer secondary terminal shorting device according to claim 1, wherein the insulating housing (1) comprises a casing (11) and an end plate (12) detachably connected to the casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220007352.XU CN216719697U (en) | 2022-01-04 | 2022-01-04 | Short-circuit device for secondary terminal of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220007352.XU CN216719697U (en) | 2022-01-04 | 2022-01-04 | Short-circuit device for secondary terminal of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216719697U true CN216719697U (en) | 2022-06-10 |
Family
ID=81889155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220007352.XU Active CN216719697U (en) | 2022-01-04 | 2022-01-04 | Short-circuit device for secondary terminal of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216719697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047146A (en) * | 2023-01-11 | 2023-05-02 | 深圳市长天智能有限公司 | Adjustable strong-adaptability current sensor |
-
2022
- 2022-01-04 CN CN202220007352.XU patent/CN216719697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116047146A (en) * | 2023-01-11 | 2023-05-02 | 深圳市长天智能有限公司 | Adjustable strong-adaptability current sensor |
| CN116047146B (en) * | 2023-01-11 | 2023-06-23 | 深圳市长天智能有限公司 | Adjustable strong-adaptability current sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216719697U (en) | Short-circuit device for secondary terminal of current transformer | |
| CN111682382B (en) | Short-circuit terminal | |
| TW202410576A (en) | Low-power power screw and quick lock compatible structure | |
| CN213816027U (en) | Plug-in wiring terminal | |
| CN215170994U (en) | Fan with cooling device | |
| CN218525788U (en) | Vertical socket connector | |
| CN108445412B (en) | Battery on-line monitoring standardized adapter and matched welding tool thereof | |
| CN215931975U (en) | Electric meter box | |
| CN109244755B (en) | Connection frame and connector | |
| CN108564780B (en) | Concentrator | |
| CN211045766U (en) | Novel grounding terminal strip | |
| CN112134056A (en) | Power supply device with module expansion function | |
| CN215931974U (en) | Electric connection structure of ammeter case | |
| CN215528088U (en) | Straight needle ox horn socket | |
| CN108564781B (en) | Concentrator | |
| CN219456276U (en) | Multifunctional testing device | |
| CN213878665U (en) | Signal leading-out device for power supply filter electrical performance test and power-up test | |
| CN218885984U (en) | Heavy current test clamping device and heavy current test fixture thereof | |
| CN221007805U (en) | Detection tool for motor with lead | |
| CN212725649U (en) | PCB wiring terminal of relay protection device and relay protection device | |
| CN217238155U (en) | Large current test fixture with tab battery | |
| CN213845565U (en) | Connector and equipment box | |
| CN220137227U (en) | Floating plug connector | |
| CN220139347U (en) | Wire holder of low-voltage motor | |
| CN214792823U (en) | Special detection template for electronic detonator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |