CN114264946A - Testing tool for vacuum arc extinguish chamber of circuit breaker - Google Patents
Testing tool for vacuum arc extinguish chamber of circuit breaker Download PDFInfo
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- CN114264946A CN114264946A CN202111528997.4A CN202111528997A CN114264946A CN 114264946 A CN114264946 A CN 114264946A CN 202111528997 A CN202111528997 A CN 202111528997A CN 114264946 A CN114264946 A CN 114264946A
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Abstract
The application discloses circuit breaker vacuum interrupter test tool includes: the device comprises a device main body, a vacuum bubble assembly, a jacking device, a fixed electrode, a closing assembly and a breaking assembly; the vacuum bubble component 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 moving contact is arranged on the vacuum bubble in a sliding manner; the jacking device 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 closing assembly includes: the conductive base and the connecting electrode; the conductive base is connected with the connecting electrode; the separating brake subassembly includes: the connecting seat, the upper bolt and the 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 moving contact bottom is provided with the screw. The application provides a circuit breaker vacuum interrupter test tool can carry out the electrical measurement test of closing a floodgate and separating brake as vacuum interrupter's test tool, improves efficiency of software testing.
Description
Technical Field
The application relates to the technical field of vacuum circuit breakers, in particular to a test tool for a vacuum arc extinguish chamber of a circuit breaker.
Background
Vacuum circuit breakers are widely used in power systems. And because the vacuum short-circuiting device needs to operate under various operating conditions and reaches a certain age along with the operating time, the vacuum arc-extinguishing chamber of the circuit breaker gradually has the defects of reduced vacuum degree, increased contact resistance and the like, and needs to be replaced. The replacement of the vacuum arc-extinguishing chamber needs to carry out 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 a vacuum arc-extinguishing chamber is installed on a breaker on a fault site and then a detection test is carried out, so that repeated disassembly and assembly are needed, the disassembly and assembly steps are complex, the efficiency is low, and the repair and restoration time is seriously influenced.
Disclosure of Invention
In view of this, the present application provides a testing tool for a vacuum interrupter of a circuit breaker, which is used as a testing tool for testing a vacuum interrupter, and improves testing efficiency when the vacuum interrupter is replaced.
In order to reach above-mentioned technical purpose, this application provides a circuit breaker vacuum interrupter test tool, includes: the device comprises a device main body, a vacuum bubble assembly, a jacking device, a fixed electrode, a closing assembly and a breaking 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 moving contact is slidably arranged at the bottom of the vacuum bulb, and the top end of the moving contact extends into the vacuum bulb;
the jacking device is arranged on the device main body, is positioned below the moving contact and is used for pushing the moving contact to be close to the static contact;
the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact;
the closing assembly comprises: the conductive base and the connecting electrode;
the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is arranged on the conductive base;
the opening assembly comprises: the connecting seat, the upper bolt and the 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 jacking device is provided with a lower screw hole in threaded fit with the lower bolt;
and an upper screw hole in threaded fit with the upper bolt is formed in the bottom of the moving contact.
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 an induction end is connected with the moving contact;
the display is electrically connected with the pressure sensor and used for displaying the pressure value sensed by the pressure sensor.
Further, the device also comprises a graduated scale;
the scale is vertical set up in the device main part, and be located the jacking ware side is used for supplying the staff contrast the lift distance of jacking ware.
Furthermore, the device main body is a square frame, and an installation cavity is arranged inside the device main body;
the jacking device is arranged at the bottom of the mounting cavity;
the vacuum bubble is arranged at the top of the mounting cavity.
Furthermore, a trapezoidal 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 from the top to the bottom;
the top of the vacuum bubble is provided with a trapezoidal groove matched with the trapezoidal block rod.
Furthermore, the device also comprises a loose bolt;
the top of the vacuum bulb is provided with an elastic bolt hole;
the elastic bolt hole is intersected and communicated with the trapezoidal groove;
the elastic bolt is rotatably arranged in the elastic bolt hole.
Further, the connecting seat is a C-shaped bolt draw hook.
Further, the jacking device is a jack.
According to the technical scheme, the application provides a circuit breaker vacuum interrupter test tool, includes: the device comprises a device main body, a vacuum bubble assembly, a jacking device, a fixed electrode, a closing assembly and a breaking 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 moving contact is arranged on the vacuum bubble in a sliding manner, and one end of the moving contact extends into the vacuum bubble; the jacking device is arranged on the device main body, is positioned below the moving contact and is used for pushing the moving contact to be close to the static contact; the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact; the closing assembly comprises: the conductive base and the connecting electrode; the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is arranged on the conductive base; the opening assembly comprises: the connecting seat, the upper bolt and the 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 jacking device is provided with a lower screw hole in threaded fit with the lower bolt; and an upper screw hole in threaded fit with the upper bolt is formed in the bottom of the moving contact. Through setting up the testing tool that comprises device main part, vacuum bubble subassembly, jacking ware, fixed electrode, combined floodgate subassembly and separating brake subassembly can carry out the electrical measurement experiment of combined floodgate and separating brake as the testing tool of vacuum interrupter, improves efficiency of software testing. When the switch is switched on, the conductive base can be placed on the jacking device, the concave cavity is abutted to the bottom of the moving contact, the jacking device is lifted to enable the moving contact to be in contact with the fixed contact for switching on, and the fixed electrode and the connecting electrode are used for conducting electrical testing work of switching on; when the brake is required to be opened, the jacking device descends, the connecting seat of the brake opening assembly is connected with the moving contact and the jacking device through the upper bolt and the lower bolt respectively, and then the moving contact is driven by the jacking device to slowly descend, so that the electrical test work of the brake opening can be carried out. The application provides a circuit breaker vacuum interrupter test tool passes through the cooperation of jacking ware, can adapt to the vacuum interrupter of unidimensional model, and each item test is accomplished in various occasions to convenient and fast ground, satisfies safety and technical requirement, improves the test efficiency of detection when changing vacuum interrupter.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a front view of a testing tool for a vacuum interrupter of a circuit breaker provided in an embodiment of the present application when a closing assembly is installed;
fig. 2 is a front view of a breaker vacuum interrupter test tool provided in an embodiment of the present application when a tripping assembly is installed;
fig. 3 is a bottom perspective view of a circuit breaker vacuum interrupter test tool provided in an embodiment of the present application when a closing assembly is installed;
fig. 4 is a bottom perspective view of a breaker vacuum interrupter test tool provided in an embodiment of the present application when the breaking assembly is installed.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection claimed herein.
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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, 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 the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, in an embodiment of the present application, a testing tool for a vacuum interrupter of a circuit breaker includes: the device comprises a device main body 1, a vacuum bubble assembly 2, a jacking device 3, a fixed electrode 4, a closing assembly 5 and a separating assembly 6; the vacuum bubble component 2 comprises a vacuum bubble 21 and a movable contact 22; the vacuum bubble 21 is detachably arranged on the device main body 1, and a static contact (not shown) is arranged inside the vacuum bubble 21; the movable contact 22 is slidably arranged at the bottom of the vacuum bubble 21, and the top end of the movable contact extends into the vacuum bubble 21; the jacking device 3 is arranged on the device main body 1, is positioned below the movable contact 22 and is used for pushing the movable 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; closing assembly 5 includes: the conductive base 51 and the connection electrode 52; the conductive base 51 is connected with the connecting electrode 52, and the conductive base 51 is provided with a cavity for placing the movable contact 22; the opening component 6 comprises: 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 jacking device 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 which is in threaded fit with the upper bolt 62.
The jack 3 may be a device having a lifting function such as a jack. Wherein, the top of the jacking device 3 is provided with a transition base 31 and an insulating plate 32; the lower screw holes may be provided on the transition base 31; the insulating plate 31 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 movable contact 22.
Meanwhile, in order to facilitate the installation of the upper bolt 62 and the lower bolt 63 and to facilitate the visual observation of whether the movable contact 22 is pulled by the worker, the connecting seat 61 may be a C-shaped bolt retractor.
Specifically, the closing assembly 5 serves as a connecting assembly for closing the moving contact 22 and the static contact, so that the surface abrasion of the moving contact caused by the fact that the wire clamp is directly connected with the moving contact when tests such as resistance measurement are performed can be avoided. Meanwhile, in order to improve the measurement accuracy, in the present embodiment, the conductive base 51 is a pure copper base, which can reduce the resistivity of the closing assembly 5 as a connector, thereby improving the measurement accuracy.
After the jacking device 3 pushes the moving contact 22 to contact with the fixed contact, the pushing and pressing of the jacking device 3 can enable the moving contact 3 to deform, and the moving contact is absorbed by the vacuum pressure inside the vacuum bubble 21, after the closing test is completed, the lowering jacking device 3 can 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 separating brake, the jacking ware 3 descends through connecting seat 61 pulling moving contact 22 for moving contact 22 and static contact separation back, the staff can carry out the breakdown test: and applying a preset test voltage to the connecting seat, and detecting whether the moving contact 22 and the static contact are broken down or not so as to judge whether the vacuum bulb component 2 is qualified or not. Wherein, the test voltage is ultrahigh voltage which can reach forty thousand volts. After the breakdown test, the vacuum bulb component 2 can be removed and replaced by a new vacuum bulb component 2 for testing.
Furthermore, in order to facilitate the direct visual judgment of the pressure provided by the lifter 3 when the moving contact 22 and the static contact are switched on by the operator, a pressure sensor 7 and a display 8 are further provided in the embodiment; the pressure sensor 7 is arranged on the device main body 1, and the sensing end is connected with the movable 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, through the display 8 and the pressure sensor 7, the worker can visually observe the pressure applied to the movable contact 22 by the jack 3 so as to control the lifting degree of the jack 3. Wherein, the jacking device 3 can be controlled to lift through an operating 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 jacking device 3 for the worker to compare the lifting distance of the jacking device.
Further, the device main body 1 is a square frame, and comprises a plurality of vertically arranged posts 11, a top plate 12 and a bottom plate 13, and an installation cavity 14 is arranged inside the device main body; the jacking device 3 is arranged at the bottom of the installation cavity 14, namely on the bottom plate 13; a vacuum bulb 21 is disposed on the top of the mounting cavity 14, i.e., the top plate 12.
Wherein, the fixed electrode 4 and the connecting electrode 52 may have one end extending out of the mounting cavity 14 for the convenience of the measurement of the connection of the working personnel.
Further, a trapezoidal block rod 15 is horizontally arranged at the top of the device main body 1; the trapezoidal block rod 15 gradually increases in cross-sectional area from top to bottom; the top of the vacuum bubble 21 is provided with a trapezoidal groove 211 matched with the trapezoidal block rod.
Further, a tension bolt 16 is also included; the top of the vacuum bubble 21 is provided with a loose and tight bolt hole; the elastic bolt hole is intersected and communicated with the trapezoidal groove 211; the turnbuckle 16 is rotatably disposed in the turnbuckle hole.
Specifically, in this embodiment, when the vacuum bulb 21 is mounted, the vacuum bulb 21 is slidably mounted in the mounting cavity 14 along the trapezoidal block rod 15 by aligning the trapezoidal groove 211 with the trapezoidal block rod 15, and is fastened and fixed by the turnbuckle 16. When the vacuum bulb 21 needs to be disassembled after the test is completed, the vacuum bulb 21 can be disassembled in a sliding mode after the elastic bolt 16 is unscrewed, a worker can conveniently install the next vacuum bulb 21 for testing, and the detection efficiency is improved. The trapezoidal groove 211 may be disposed on a groove block, and the groove block is fixedly connected to the vacuum bulb 21 by a tool such as a bolt.
The circuit breaker vacuum interrupter test tool that this embodiment improves can detect the vacuum interrupter of different models, and each item test is accomplished in various occasions to convenient and fast ground, satisfies safety and technical requirement. And meanwhile, the assembly and disassembly are flexible and simple, and the labor and time consumed by the link are greatly reduced.
Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (9)
1. The utility model provides a circuit breaker vacuum interrupter test tool which characterized in that includes: the device comprises a device main body, a vacuum bubble assembly, a jacking device, a fixed electrode, a closing assembly and a breaking 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 moving contact is slidably arranged at the bottom of the vacuum bulb, and the top end of the moving contact extends into the vacuum bulb;
the jacking device is arranged on the device main body, is positioned below the moving contact and is used for pushing the moving contact to be close to the static contact;
the fixed electrode is arranged on the device main body and is electrically connected with the fixed contact;
the closing assembly comprises: the conductive base and the connecting electrode;
the conductive base is connected with the connecting electrode, and a concave cavity for placing the moving contact is arranged on the conductive base;
the opening assembly comprises: the connecting seat, the upper bolt and the 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 jacking device is provided with a lower screw hole in threaded fit with the lower bolt;
and an upper screw hole in threaded fit with the upper bolt is formed in the bottom of the moving contact.
2. The circuit breaker vacuum interrupter test tool of claim 1 wherein the conductive base is a pure copper base.
3. The circuit 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 an induction end is connected with the moving contact;
the display is electrically connected with the pressure sensor and used for displaying the pressure value sensed by the pressure sensor.
4. The circuit breaker vacuum interrupter test tool of claim 1 further comprising a scale;
the scale is vertical set up in the device main part, and be located the jacking ware side is used for supplying the staff contrast the lift distance of jacking ware.
5. The testing tool for the vacuum arc extinguish chamber of the circuit breaker according to claim 1, wherein the main body of the device is a square frame, and a mounting cavity is arranged inside the main body;
the jacking device is arranged at the bottom of the mounting cavity;
the vacuum bubble is arranged at the top of the mounting cavity.
6. The circuit breaker vacuum interrupter test tool of claim 5 wherein a top of the device body is provided with a trapezoidal block bar horizontally disposed;
the cross section area of the trapezoid block rod is gradually increased from the top to the bottom;
the top of the vacuum bubble is provided with a trapezoidal groove matched with the trapezoidal block rod.
7. The circuit breaker vacuum interrupter test tool of claim 5 further comprising a draw bolt;
the top of the vacuum bulb is provided with an elastic bolt hole;
the elastic bolt hole is intersected and communicated with the trapezoidal groove;
the elastic bolt is rotatably arranged in the elastic bolt hole.
8. The circuit breaker vacuum interrupter test tool of claim 1 wherein the connecting base is a C-bolt draw hook.
9. The circuit 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 true CN114264946A (en) | 2022-04-01 |
| CN114264946B CN114264946B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111528997.4A Active CN114264946B (en) | 2021-12-14 | 2021-12-14 | Breaker vacuum arc-extinguishing chamber test tool |
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| Country | Link |
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| CN (1) | CN114264946B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115248090A (en) * | 2022-07-21 | 2022-10-28 | 西门子中压开关技术（无锡）有限公司 | Measuring device for circuit breaker |
| CN116500392A (en) * | 2023-05-06 | 2023-07-28 | 博时达集团有限公司 | Inspection device for high-voltage vacuum circuit breaker production |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115248090A (en) * | 2022-07-21 | 2022-10-28 | 西门子中压开关技术（无锡）有限公司 | Measuring device for circuit breaker |
| 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 |
| CN116500392A (en) * | 2023-05-06 | 2023-07-28 | 博时达集团有限公司 | Inspection device for high-voltage vacuum circuit breaker production |
| 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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| Publication number | Publication date |
|---|---|
| CN114264946B (en) | 2023-09-22 |
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