CN219475656U - Secondary current short-circuiting device - Google Patents
Secondary current short-circuiting device Download PDFInfo
- Publication number
- CN219475656U CN219475656U CN202223579562.5U CN202223579562U CN219475656U CN 219475656 U CN219475656 U CN 219475656U CN 202223579562 U CN202223579562 U CN 202223579562U CN 219475656 U CN219475656 U CN 219475656U
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- secondary current
- binding post
- conductor
- short
- circuiting
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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
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a secondary current short circuit device which comprises a conductor binding post body, wherein a thread structure is arranged on the outer circumference of the middle part of the conductor binding post body, the lower end of the conductor binding post body is a conical section matched with a binding post for use, and an external lead is connected to the conductor binding post body; according to the secondary current short-circuiting device, the traditional short-circuiting piece is replaced by the conductor binding post with the threaded structure, so that the short-circuiting reliability of a secondary current loop is improved, the phenomenon that the secondary current short-circuiting wire falls off at the terminal strip in the test process is avoided, the risk of secondary current open circuit is caused, and meanwhile, the secondary current short-circuiting device is simple in integral structure, convenient to install and detach, and the working efficiency of operators is improved.
Description
Technical Field
The utility model relates to the field of power equipment detection, in particular to a secondary current short-circuiting device.
Background
In the relay protection screen, terminal box or the control cubicle of the power system, the secondary circuit current switching and connection are realized by the wiring terminal, and the secondary current is usually required to be short-circuited by the short-circuit wire and the short-circuit sheet in relay protection and automatic fixed inspection, so that open circuit is prevented. The current shorting bars, shorting strips and the like have larger potential safety hazards, whether the shorting is completed cannot be confirmed through on-site observation, and the shorting bars are easy to drop off due to false touch and false operation in work, so that a secondary circuit is opened, and the situations of false operation of a protection device, burning of test equipment and the like are caused.
According to statistics, in the proportion of false operation occurring in a current loop in a power system, the false collision is about 33%, and the false operation is one of main factors of the protection device caused by the current loop. The false collision often causes an open circuit of the secondary side of the internal current of the power system, and further causes the current of the primary side to be completely converted into magnetizing current, so that the iron core is excessively saturated and magnetized, and the coil is seriously heated or even burnt; meanwhile, the secondary current is suddenly opened, so that the magnetic flux of the iron core is seriously saturated, and the secondary side winding induces very high voltage when the magnetic flux crosses zero, so that the safety of operators is critical.
For this reason, a secondary current shorting device is required to solve the above problems.
Disclosure of Invention
In view of this, the secondary current shorting device of this technical scheme adopts the conductor terminal of helicitic texture to replace traditional short circuit piece, has improved secondary current return circuit short circuit reliability, helps avoiding the phenomenon that secondary current shorting wire drops in the terminal row department in the test process, causes the risk of secondary current open circuit, and overall structure is simple simultaneously, and the installation is dismantled conveniently, has improved operating personnel work efficiency.
The utility model provides a secondary current short circuit device, includes the conductor terminal body, be provided with the helicitic texture on the outer circumference in conductor terminal body middle part, conductor terminal body lower extreme is the toper section that the cooperation binding post used, the connection is provided with external wire on the conductor terminal body.
Further, an adjusting part is formed at the upper end of the conductor binding post body, and an opening groove for rotationally adjusting the conductor binding post body is formed in the adjusting part.
Further, the adjusting part is of a cylindrical structure, the open slot is formed in the middle of the adjusting part, and the connecting lugs are outwards protruded in the radial direction of the adjusting part.
Further, a wire mounting hole for mounting the external wire is formed in the connection lug.
Further, the cable connector further comprises a rubber guide sleeve matched with the conductor terminal body.
Further, the digital display test meter is used for being matched with an external lead.
Further, the conductor binding post body is manufactured by processing copper materials.
The beneficial effects of the utility model are as follows:
according to the secondary current short-circuiting device, the traditional short-circuiting piece is replaced by the conductor binding post with the threaded structure, so that the short-circuiting reliability of a secondary current loop is improved, the phenomenon that the secondary current short-circuiting wire falls off at the terminal strip in the test process is avoided, the risk of secondary current open circuit is caused, and meanwhile, the secondary current short-circuiting device is simple in integral structure, convenient to install and detach, and the working efficiency of operators is improved.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a rubber guide sleeve according to the present utility model;
fig. 3 is a schematic view of an internal connection terminal of the power system according to the present utility model.
Detailed Description
FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic view of a seal end cap according to the present utility model; FIG. 3 is a schematic diagram of an internal terminal of the power system of the present utility model; as shown in the figure, the secondary current short-circuiting device comprises a conductor binding post body, wherein a thread structure 2 is arranged on the outer circumference of the middle part of the conductor binding post body, the lower end of the conductor binding post body is a conical section 3 matched with a binding post for use, and an external lead 6 is connected to the conductor binding post body; according to the secondary current short-circuiting device, the traditional short-circuiting piece is replaced by the conductor binding post with the threaded structure, so that the short-circuiting reliability of a secondary current loop is improved, the phenomenon that the secondary current short-circuiting wire falls off at the terminal strip in the test process is avoided, the risk of secondary current open circuit is caused, meanwhile, the secondary current short-circuiting device is simple in integral structure, convenient to install and detach, the working efficiency of operators is improved, and the safety of the operators is guaranteed.
In this embodiment, an adjusting portion 1 is formed at the upper end of the conductor terminal body, and an opening slot 4 for rotationally adjusting the conductor terminal body is formed in the adjusting portion 1. The upper end of the conductor binding post body is provided with an adjusting part 1 for rotating and adjusting the installation depth of the conductor binding post body, the conical section 3 is inserted into a binding post hole 13 in the terminal box 12, the adjusting part 1 is rotated through a tool, the threaded structure 2 is tightly installed in the binding post hole 13, the threaded structure 2 completely enters the terminal hole during use, and the connection and installation stability between components is ensured.
In this embodiment, the adjusting portion 1 has a cylindrical structure, the open slot 4 is formed in the middle of the adjusting portion 1, and a connection lug 5 is formed by protruding outwards in the radial direction of the adjusting portion. The adjusting part 1 is provided with an open slot 4 which can be in a flat structure or a cross slot, and the connecting lugs 5 are used for being matched with an external lead 6 for installation.
In this embodiment, the connection lugs 5 are provided with wire mounting holes for mounting the external wires 6.
In this embodiment, the cable connector further includes a rubber guide sleeve 14 that is matched with the conductor terminal body, and the rubber guide sleeve 14 is sleeved outside the conductor terminal body, so as to protect the conductor terminal.
In this embodiment, the digital display test meter 7 is further included, the digital display test meter 7 may be an existing pincerlike ammeter or other corresponding digital display meters, the external wires 6 at two ends of the two conductor terminal bodies are respectively connected with the wiring ports 9 on the digital display test meter 7 during use, the single-phase open-circuit indicator lamp 10, the display screen 8 is used for displaying the internal state, and the switch 11 is used for controlling the opening of the test meter.
In this embodiment, the conductor terminal body is made of copper material.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (3)
1. A secondary current short circuit device is characterized in that: the connecting terminal comprises a conductor terminal body, wherein a thread structure is arranged on the outer circumference of the middle part of the conductor terminal body, the lower end of the conductor terminal body is a conical section matched with a connecting terminal for use, and an external lead is connected to the conductor terminal body; the upper end of the conductor binding post body is provided with an adjusting part, and the adjusting part is provided with an opening groove for rotationally adjusting the conductor binding post body; the adjusting part is of a cylindrical structure, the open slot is formed in the middle of the adjusting part, and the connecting lugs are outwards protruded in the radial direction of the adjusting part; the connecting lugs are provided with wire mounting holes for mounting the external wires; the cable connector further comprises a rubber guide sleeve matched with the conductor binding post body.
2. The secondary current shorting device of claim 1, wherein: the digital display test meter is used for being matched with an external lead.
3. The secondary current shorting device of claim 1, wherein: the conductor binding post body is made of copper materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223579562.5U CN219475656U (en) | 2022-12-31 | 2022-12-31 | Secondary current short-circuiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223579562.5U CN219475656U (en) | 2022-12-31 | 2022-12-31 | Secondary current short-circuiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475656U true CN219475656U (en) | 2023-08-04 |
Family
ID=87440281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223579562.5U Active CN219475656U (en) | 2022-12-31 | 2022-12-31 | Secondary current short-circuiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475656U (en) |
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2022
- 2022-12-31 CN CN202223579562.5U patent/CN219475656U/en active Active
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