CN114264946B - Breaker vacuum arc-extinguishing chamber test tool - Google Patents
Breaker vacuum arc-extinguishing chamber test tool Download PDFInfo
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- CN114264946B CN114264946B CN202111528997.4A CN202111528997A CN114264946B CN 114264946 B CN114264946 B CN 114264946B CN 202111528997 A CN202111528997 A CN 202111528997A CN 114264946 B CN114264946 B CN 114264946B
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Abstract
The application discloses a breaker vacuum arc-extinguishing chamber test tool, which comprises: the device comprises a device main body, a vacuum bubble assembly, a lifter, a fixed electrode, a closing assembly and a separating brake assembly; the vacuum bubble assembly comprises a vacuum bubble and a moving contact; the vacuum bubble is arranged on the device main body, and a static contact is arranged in the vacuum bubble; the movable contact is slidably arranged on the vacuum bulb; the jack is positioned below the moving contact; the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact; the switching-on subassembly includes: a conductive base and a connection electrode; the conductive base is connected with the connecting electrode; the brake separating assembly comprises: a connecting seat, an upper bolt and a lower bolt; the upper bolt is positioned at the upper part of the connecting seat; the lower bolt is positioned at the lower part of the connecting seat; the top of the jacking device is provided with a lower screw hole; the bottom of the moving contact is provided with an upper screw hole. The testing tool for the vacuum arc-extinguishing chamber of the circuit breaker can be used as a testing tool for the vacuum arc-extinguishing chamber to conduct an electrical measurement test for closing and opening, and the testing efficiency is improved.
Description
Technical Field
The application relates to the technical field of vacuum circuit breakers, in particular to a testing tool for a vacuum arc-extinguishing chamber of a circuit breaker.
Background
Vacuum circuit breakers are widely used in electrical power systems. The vacuum short-circuiting device is required to operate under various operating conditions and reaches a certain period along with the operation time, so that the vacuum arc-extinguishing chamber of the circuit breaker gradually has the defects of reduced vacuum degree, increased contact resistance and the like, and the vacuum arc-extinguishing chamber needs to be replaced. The vacuum arc-extinguishing chamber is replaced by a plurality of detection tests such as alternating current withstand voltage, vacuum degree, insulation resistance, loop resistance and the like; the existing test mode is that the vacuum arc-extinguishing chamber is installed on a breaker of a fault site for detection test, repeated disassembly and assembly are needed, the disassembly and assembly steps are tedious, the efficiency is low, and the rush repair electricity time is seriously influenced.
Disclosure of Invention
In view of the above, the present application is to provide a testing tool for a vacuum interrupter of a circuit breaker, which is used as a testing tool for testing the vacuum interrupter, and improves the testing efficiency when the vacuum interrupter is replaced.
In order to achieve the technical purpose, the application provides a breaker vacuum arc-extinguishing chamber test tool, which comprises: the device comprises a device main body, a vacuum bubble assembly, a lifter, a fixed electrode, a closing assembly and a separating brake assembly;
the vacuum bubble assembly comprises a vacuum bubble and a moving contact;
the vacuum bubble is detachably arranged on the device main body, and a static contact is arranged in the vacuum bubble;
the movable contact is slidably arranged at the bottom of the vacuum bulb, and the top end of the movable contact extends into the vacuum bulb;
the jack is arranged on the device main body and positioned below the moving contact and used for pushing the moving contact to be close to the fixed contact;
the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact;
the closing assembly includes: a conductive base and a connection electrode;
the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is formed in the conductive base;
the brake separating assembly comprises: a connecting seat, an upper bolt and a lower bolt;
the upper bolt is connected with the connecting seat and is positioned at the upper part of the connecting seat;
the lower bolt is connected with the connecting seat and is positioned at the lower part of the connecting seat;
the top of the lifter is provided with a lower screw hole in threaded fit with the lower bolt;
the bottom of the movable contact is provided with an upper screw hole in threaded fit with the upper bolt.
Further, the conductive base is a pure copper base.
Further, the device also comprises a pressure sensor and a display;
the pressure sensor is arranged on the device main body, and the sensing end is connected with the moving contact;
the display is electrically connected with the pressure sensor and is used for displaying the pressure value sensed by the pressure sensor.
Further, the device also comprises a graduated scale;
the graduated scale is vertically arranged on the device main body and is positioned beside the lifter, and is used for a worker to compare the lifting distance of the lifter.
Further, the device main body is a square frame, and an installation cavity is formed in the device main body;
the jack is arranged at the bottom of the mounting cavity;
the vacuum bubble is arranged at the top of the mounting cavity.
Further, a trapezoid block rod is horizontally arranged at the top of the device main body;
the cross section area of the trapezoid block rod is gradually increased along the top to bottom;
the top of the vacuum bubble is provided with a trapezoid groove matched with the trapezoid block rod.
Further, the device also comprises a tightening bolt;
the top of the vacuum bubble is provided with an elastic bolt hole;
the elastic bolt hole is intersected and communicated with the trapezoid groove;
the elastic bolt can be rotatably arranged in the elastic bolt hole.
Further, the connecting seat is a C-shaped bolt draw hook.
Further, the jack is a jack.
According to the technical scheme, the application provides a breaker vacuum arc-extinguishing chamber test tool, which comprises: the device comprises a device main body, a vacuum bubble assembly, a lifter, a fixed electrode, a closing assembly and a separating brake assembly; the vacuum bubble assembly comprises a vacuum bubble and a moving contact; the vacuum bubble is arranged on the device main body, and a fixed contact is arranged in the vacuum bubble; the movable contact is slidably arranged on the vacuum bulb, and one end of the movable contact extends into the vacuum bulb; the jack is arranged on the device main body and positioned below the moving contact and used for pushing the moving contact to be close to the fixed contact; the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact; the closing assembly includes: a conductive base and a connection electrode; the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is formed in the conductive base; the brake separating assembly comprises: a connecting seat, an upper bolt and a lower bolt; the upper bolt is connected with the connecting seat and is positioned at the upper part of the connecting seat; the lower bolt is connected with the connecting seat and is positioned at the lower part of the connecting seat; the top of the lifter is provided with a lower screw hole in threaded fit with the lower bolt; the bottom of the movable contact is provided with an upper screw hole in threaded fit with the upper bolt. Through setting up by device main part, vacuum bubble subassembly, jack, fixed electrode, the testing tool that closing component and separating brake subassembly are constituteed, can carry out the electric measurement test of closing and separating brake as the detection testing tool of vacuum interrupter, improve test efficiency. When the electric-conduction base is switched on, the conductive base is placed on the lifter, the concave cavity is abutted against the bottom of the moving contact, and then the lifter is lifted to enable the moving contact to be contacted with the fixed contact for switching on, and the electric test work of switching on is carried out through the fixed electrode and the connecting electrode; when the brake is required to be separated, the jack is made to descend, the connection seat of the brake separating assembly is connected with the moving contact and the jack through the upper bolt and the lower bolt respectively, and the jack drives the moving contact to slowly descend, so that the brake separating electric test work can be performed. The testing tool for the vacuum arc-extinguishing chamber of the circuit breaker provided by the application can adapt to vacuum arc-extinguishing chambers with different sizes and models through the cooperation of the lifters, conveniently and rapidly complete various tests in various occasions, meet the safety and technical requirements, and improve the detection test efficiency when the vacuum arc-extinguishing chamber is replaced.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a front view of a breaker vacuum arc-extinguishing chamber test tool according to an embodiment of the present application when a closing component is installed;
fig. 2 is a front view of a breaker vacuum arc-extinguishing chamber test tool according to an embodiment of the present application when a breaking assembly is installed;
fig. 3 is a bottom perspective view of a breaker vacuum arc-extinguishing chamber test tool according to an embodiment of the present application when a closing component is installed;
fig. 4 is a bottom perspective view of a breaker vacuum interrupter testing tool according to an embodiment of the present application when a breaking assembly is installed.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the application, are intended to be within the scope of the claimed application based on embodiments of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
Referring to fig. 1 to 4, a testing tool for a vacuum arc-extinguishing chamber of a circuit breaker according to an embodiment of the present application includes: the device comprises a device main body 1, a vacuum bubble assembly 2, a lifter 3, a fixed electrode 4, a closing assembly 5 and a separating brake assembly 6; the vacuum bubble assembly 2 comprises a vacuum bubble 21 and a moving contact 22; the vacuum bulb 21 is detachably arranged on the device main body 1, and a static contact (not shown in the figure) is arranged inside the vacuum bulb 21; the movable contact 22 is slidably arranged at the bottom of the vacuum bulb 21, and the top end of the movable contact extends into the vacuum bulb 21; the jack 3 is arranged on the device main body 1 and positioned below the moving contact 22 and is used for pushing the moving contact 22 to be close to the fixed contact; the fixed electrode 4 is arranged on the device main body 1 and is electrically connected with the fixed contact; the closing assembly 5 includes: a conductive base 51 and a connection electrode 52; the conductive base 51 is connected with the connecting electrode 52, and a concave cavity for placing the moving contact 22 is arranged on the conductive base 51; the brake release assembly 6 includes: a connecting seat 61, an upper bolt 62 and a lower bolt 63; the upper bolt 62 is connected with the connecting seat 61 and is positioned at the upper part of the connecting seat 61; the lower bolt 63 is connected with the connecting seat and is positioned at the lower part of the connecting seat 61; the top of the lifter 3 is provided with a lower screw hole in threaded fit with the lower bolt 63; the bottom of the movable contact 22 is provided with an upper screw hole in threaded fit with the upper bolt 62.
The jack 3 may be a lifting device such as a jack. Wherein, the top of the jack 3 is provided with a transition base 31 and an insulating plate 32; the lower screw hole may be provided on the transition base 31; the insulating plate 32 is detachably connected with the transition base 31, and is used for insulating and isolating the conductive base 51 from the lifter 3 when the conductive base 51 is connected with the moving contact 22.
Meanwhile, in order to facilitate the installation of the upper bolt 62 and the lower bolt 63 and the visual observation of whether the movable contact 22 is pulled by a worker, the connection seat 61 may be a C-shaped bolt retractor.
Specifically, the closing component 5 is used as a connecting component when the moving contact 22 and the fixed contact are closed, so that abrasion of the surface of the moving contact caused by direct connection of a wire clamp with the moving contact when tests such as measuring resistance are performed can be avoided. Meanwhile, in order to improve the measurement accuracy, in this embodiment, the conductive base 51 is a pure copper base, so that the resistivity of the closing component 5 as a connecting piece can be reduced, and the measurement accuracy can be improved.
After the lifter 3 pushes the moving contact 22 to contact with the fixed contact, the pushing and pressing of the lifter 3 can enable the moving contact 22 to deform and be absorbed by the vacuum pressure in the vacuum bubble 21, after the closing test is completed, the lifter 3 can be lowered to drive the conductive base 51 to descend and enable the conductive base 51 to be separated from the moving contact 22, and therefore the conductive base 51 can be replaced by a switching-off assembly.
When the brake is separated, the jack 3 pulls the moving contact 22 to descend through the connecting seat 61, so that after the moving contact 22 is separated from the fixed contact, a breakdown test can be performed by a worker: and applying a preset test voltage to the connecting seat, and detecting whether the moving contact 22 and the fixed contact are broken down or not so as to judge whether the vacuum bubble assembly 2 is qualified or not. Wherein, the test voltage is ultra-high voltage, which can reach forty thousand volts. After the breakdown test, the vacuum bulb assembly 2 can be removed and replaced with a new vacuum bulb assembly 2 for testing.
Further, in order to facilitate the staff to intuitively judge that the lifter 3 provides the pressure of the moving contact 22 when the moving contact 22 and the fixed contact are switched on, the embodiment is further provided with a pressure sensor 7 and a display 8; the pressure sensor 7 is arranged on the device main body 1, and the sensing end is connected with the moving contact 22; the display 8 is electrically connected with the pressure sensor 7 and is used for displaying the pressure value sensed by the pressure sensor 7.
Specifically, the pressure applied to the movable contact 22 by the jack 3 can be visually observed by a worker through the display 8 and the pressure sensor 7, so that the degree of lifting of the jack 3 can be controlled. Wherein, the lifter 3 can be controlled to lift by operating the handle.
Further, a graduated scale 9 is also included; the graduated scale 9 is vertically arranged on the device main body 1 and is positioned beside the lifter 3 for a worker to compare the lifting distance of the lifter.
Further, the device main body 1 is a square frame and comprises a plurality of vertical posts 11, a top plate 12 and a bottom plate 13, and an installation cavity 14 is arranged in the device main body; the lifter 3 is arranged at the bottom of the installation cavity 14, namely on the bottom plate 13; a vacuum bulb 21 is provided on the top of the mounting chamber 14, i.e. on the top plate 12.
The fixed electrode 4 and the connecting electrode 52 may have one end extending out of the mounting cavity 14 for facilitating the connection measurement of the worker.
Further, the top of the apparatus body 1 is provided with a trapezoid block bar 15 horizontally arranged; the trapezoidal block bar 15 increases in cross-sectional area from top to bottom; the top of the vacuum bulb 21 is provided with a trapezoidal groove 211 adapted to the trapezoidal block bar.
Further, a tension bolt 16 is included; the top of the vacuum bubble 21 is provided with an elastic bolt hole; the elastic bolt hole is intersected and communicated with the trapezoid groove 211; the elastic bolt 16 is rotatably arranged in the elastic bolt hole.
Specifically, in the present embodiment, when the vacuum bulb 21 is mounted, the trapezoidal groove 211 is aligned with the trapezoidal block rod 15, so that the vacuum bulb 21 can be slidably mounted in the mounting cavity 14 along the trapezoidal block rod 15, and is screwed and fixed by the tightening and loosening bolts 16. When the test is finished and the disassembly is needed, after the elastic bolt 16 is unscrewed, the vacuum bubble 21 can be slidingly disassembled, so that a worker can conveniently install the next vacuum bubble 21 for testing, and the detection efficiency is improved. Wherein, the trapezoid groove 211 can be arranged on a groove block, and the groove block is fixedly connected with the vacuum bubble 21 through a tool such as a bolt.
The test tool for the vacuum arc-extinguishing chamber of the circuit breaker can detect vacuum arc-extinguishing chambers of different types, conveniently and rapidly completes various tests in various occasions, and meets the requirements of safety and technology. Meanwhile, the assembly and the disassembly are flexible and simple, and the labor and time consumed in the link are greatly reduced.
While the application has been described in detail with reference to the examples, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the application may be modified or equivalents may be substituted for elements thereof, and that any modifications, equivalents, improvements or changes will fall within the spirit and principles of the application.
Claims (9)
1. A breaker vacuum interrupter test tool, comprising: the device comprises a device main body, a vacuum bubble assembly, a lifter, a fixed electrode, a closing assembly and a separating brake assembly;
the vacuum bubble assembly comprises a vacuum bubble and a moving contact;
the vacuum bubble is detachably arranged on the device main body, and a static contact is arranged in the vacuum bubble;
the movable contact is slidably arranged at the bottom of the vacuum bulb, and the top end of the movable contact extends into the vacuum bulb;
the jack is arranged on the device main body and positioned below the moving contact and used for pushing the moving contact to be close to the fixed contact;
the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact;
the closing assembly includes: a conductive base and a connection electrode;
the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is formed in the conductive base;
the brake separating assembly comprises: a connecting seat, an upper bolt and a lower bolt;
the upper bolt is connected with the connecting seat and is positioned at the upper part of the connecting seat;
the lower bolt is connected with the connecting seat and is positioned at the lower part of the connecting seat;
the top of the lifter is provided with a lower screw hole in threaded fit with the lower bolt;
an upper screw hole in threaded fit with the upper bolt is formed in the bottom of the movable contact;
the switching-on assembly is used as a connecting assembly when the moving contact and the fixed contact are switched on, and the moving contact is placed in the concave cavity when the switching-on is performed;
after the closing test is completed, the jack is lowered to drive the conductive base to descend and separate the conductive base from the moving contact, and then the upper bolt is installed in the upper screw hole and the lower bolt is installed in the lower screw hole, so that the conductive base is replaced by a brake separating assembly.
2. The breaker vacuum interrupter test tool of claim 1, wherein the conductive base is a pure copper base.
3. The breaker vacuum interrupter test tool of claim 1, further comprising a pressure sensor and a display;
the pressure sensor is arranged on the device main body, and the sensing end is connected with the moving contact;
the display is electrically connected with the pressure sensor and is used for displaying the pressure value sensed by the pressure sensor.
4. The breaker vacuum interrupter test tool of claim 1, further comprising a scale;
the graduated scale is vertically arranged on the device main body and is positioned beside the lifter, and is used for a worker to compare the lifting distance of the lifter.
5. The breaker vacuum interrupter test tool of claim 1, wherein the device body is a square frame with a mounting cavity disposed therein;
the jack is arranged at the bottom of the mounting cavity;
the vacuum bubble is arranged at the top of the mounting cavity.
6. The breaker vacuum interrupter test tool of claim 5, wherein a trapezoidal block bar is horizontally disposed on top of the device body;
the cross section area of the trapezoid block rod is gradually increased along the top to bottom;
the top of the vacuum bubble is provided with a trapezoid groove matched with the trapezoid block rod.
7. The breaker vacuum interrupter test tool of claim 6, further comprising a draw bolt;
the top of the vacuum bubble is provided with an elastic bolt hole;
the elastic bolt hole is intersected and communicated with the trapezoid groove;
the elastic bolt can be rotatably arranged in the elastic bolt hole.
8. The breaker vacuum interrupter test tool of claim 1, wherein the connection mount is a C-bolt retractor.
9. The breaker vacuum interrupter test tool of claim 1, wherein the jack is a jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528997.4A CN114264946B (en) | 2021-12-14 | 2021-12-14 | Breaker vacuum arc-extinguishing chamber test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528997.4A CN114264946B (en) | 2021-12-14 | 2021-12-14 | Breaker vacuum arc-extinguishing chamber test tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114264946A CN114264946A (en) | 2022-04-01 |
| CN114264946B true CN114264946B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111528997.4A Active CN114264946B (en) | 2021-12-14 | 2021-12-14 | Breaker vacuum arc-extinguishing chamber test tool |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115248090B (en) * | 2022-07-21 | 2024-01-26 | 西门子中压开关技术（无锡）有限公司 | Measuring device for a circuit breaker |
| CN116500392B (en) * | 2023-05-06 | 2023-11-21 | 博时达集团有限公司 | Inspection device for high-voltage vacuum circuit breaker production |
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