CN110441678B - Test device of vacuum circuit breaker - Google Patents
Test device of vacuum circuit breaker Download PDFInfo
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- CN110441678B CN110441678B CN201910772732.5A CN201910772732A CN110441678B CN 110441678 B CN110441678 B CN 110441678B CN 201910772732 A CN201910772732 A CN 201910772732A CN 110441678 B CN110441678 B CN 110441678B
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- circuit breaker
- vacuum circuit
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 description 6
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
Abstract
The invention provides a test device of a vacuum circuit breaker, which comprises a mounting bracket, a plurality of over-travel spring assemblies, a plurality of test pieces and a test piece, wherein the mounting bracket is provided with a plurality of over-travel spring assemblies which can be connected with an operating mechanism of the vacuum circuit breaker; the horizontal positioning structure and the longitudinal positioning structure are fixed between the mounting bracket and the base of the vacuum circuit breaker, and the mounting bracket is fixedly connected with the base. Because a plurality of spring assemblies that overrun are pre-installed on the installing support, test device only need place the installing support on the base when the assembly, then through horizontal location structure and vertical location structure with installing support and base fixed connection, only need like this the installing support dismouting can, compare with the mode that three insulating cylinder assemblies need be installed in the base respectively, the dismouting is swift convenient, and test efficiency is high.
Description
Technical Field
The invention relates to the technical field of vacuum circuit breakers, in particular to a test device of a vacuum circuit breaker.
Background
The vacuum circuit breaker is an indoor distribution device suitable for a 3-10 kV 50Hz three-phase alternating current system, has the advantages of small volume, light weight, suitability for frequent operation and no maintenance in arc extinction, and is widely applied to industrial and mining enterprises, power plants, transformer substations and other use places requiring oil-free, less maintenance and frequent operation.
At present, after an operating mechanism of a vacuum circuit breaker and a three-phase insulating cylinder assembly are assembled into a whole machine, an opening and closing test needs to be carried out on the operating mechanism for about 200 times, so that the working reliability of the operating mechanism is ensured, an over-travel spring of the three-phase insulating cylinder assembly stores energy when the operating mechanism is closed, and releases energy when the operating mechanism is opened, so as to provide opening acting force for the operating mechanism. In the test process, if the operating mechanism is found to be faulty, the three-phase insulating cylinder assembly needs to be removed first, and then the operating mechanism is checked. As shown in fig. 6 and 7, the bottom and the side of each phase of the insulating cylinder assembly 8 are respectively fixed on the base 2 and the side plate 9 of the vacuum circuit breaker through bolts, and the number of bolts and the limitation of the positions of the bolts are large, so that the one-time dismounting process of the three-phase insulating cylinder assembly needs about half an hour, which is time-consuming and labor-consuming, and greatly reduces the test efficiency.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of low test efficiency of the operating mechanism of the vacuum circuit breaker in the prior art, thereby providing a test device of the vacuum circuit breaker with high test efficiency.
To this end, the present invention provides a test apparatus for a vacuum circuit breaker, comprising,
The installation bracket is provided with a plurality of over-travel spring assemblies which can be connected with an operating mechanism of the vacuum circuit breaker;
The horizontal positioning structure and the longitudinal positioning structure are fixed between the mounting bracket and the base of the vacuum circuit breaker, and are fixedly connected with each other.
The mounting bracket comprises a mounting plate which is arranged in parallel with the base and provided with the over-travel spring assembly, and support arms which are respectively arranged at two sides of the mounting plate and are perpendicular to the mounting plate, the horizontal positioning structure is arranged on the support arms, and the longitudinal positioning structure is arranged on the mounting plate.
The horizontal positioning structure comprises a first positioning hole, a second positioning hole, a positioning block and a locking structure, wherein the first positioning hole is respectively formed on two side plates at two sides of the base;
the second positioning hole is formed on the support arm and is arranged opposite to the first positioning hole;
The positioning block is connected with the first positioning hole in an interference fit manner after penetrating through the second positioning hole;
And the locking structure is used for locking and connecting the positioning block with the support arm in the test position.
The locking structure comprises a positioning column and a locking rod,
The positioning column is arranged on the support arm and is provided with a hole cavity which is communicated with the second positioning hole and used for the positioning block to move, and an L-shaped through groove formed on the outer wall of the positioning column, wherein the L-shaped through groove comprises a first section which is parallel to the moving direction of the positioning block and a second section which is arranged along the circumferential arc of the positioning column;
The lock rod penetrates through the L-shaped through groove and is fixedly connected with the positioning block, and the lock rod can reciprocate along the first section and the second section of the L-shaped through groove.
The longitudinal positioning structure comprises:
The threaded hole is arranged on the mounting plate;
The screw rod passes through the threaded hole and then is in propping connection with the base, and a cushion block assembly in pressing connection with the base is arranged at the bottom of the screw rod.
The cushion block assembly comprises a rigid cushion block which is in fit and threaded connection with the screw rod, and an elastic cushion block which is arranged between the rigid cushion block and the base, wherein the area of the elastic cushion block is larger than that of the rigid cushion block.
The surface of the support arm facing the other support arm is provided with a positioning plate, and a third positioning hole which is arranged opposite to the threaded hole and used for the screw to penetrate is formed in the positioning plate.
The screw rod with the mounting panel with the sheath that the cover was located on the screw rod is had to the junction of locating plate.
The over travel spring assembly comprises a connecting rod, a first spring, a driving block and a second spring,
The connecting rod is vertically arranged on the mounting plate and is provided with a first rod part which is arranged between the mounting plate and the base and is matched and connected with the crank arm of the operating mechanism, and a second rod part which extends out of the top of the mounting plate;
The first spring and the driving block are sleeved on the first rod part, and the driving block is driven by the mounting plate to compress the first spring;
And the second spring is sleeved on the second rod part, one end of the second spring is propped against the mounting plate, and the other end of the second spring is propped against a gasket arranged at the end part of the second rod part.
The technical scheme of the invention has the following advantages:
1. The invention provides a test device of a vacuum circuit breaker, which comprises a mounting bracket, a horizontal positioning structure and a longitudinal positioning structure, wherein the mounting bracket is provided with a plurality of over-travel spring assemblies which can be connected with an operating mechanism of the vacuum circuit breaker, and the horizontal positioning structure and the longitudinal positioning structure are fixed between the mounting bracket and a base of the vacuum circuit breaker to fixedly connect the mounting bracket and the base. Because a plurality of spring assemblies that overrun are pre-installed on the installing support, test device only need place the installing support on the base when the assembly, then through horizontal location structure and vertical location structure with installing support and base fixed connection, only need like this the installing support dismouting can, compare with the mode that three insulating cylinder assemblies need be installed in the base respectively, the dismouting is swift convenient, and test efficiency is high.
2. The invention provides a test device of a vacuum circuit breaker, wherein a mounting bracket comprises a mounting plate which is arranged in parallel with a base and provided with an over-travel spring assembly, and support arms which are respectively arranged at two sides of the mounting plate and are arranged vertically to the mounting plate, a horizontal positioning structure is arranged on the support arms, and a longitudinal positioning structure is arranged on the mounting plate. When the horizontal positioning structure is disassembled and assembled, the horizontal positioning structure and the longitudinal positioning structure are positioned and installed on the two sides and the upper side of the base respectively, so that the operation of an installer is more convenient and the test efficiency is improved compared with the mode that the installer in the prior art needs to install bolts from the bottom of the base; moreover, through horizontal location structure and vertical location structure can fix a position the installation at horizontal direction and longitudinal direction respectively, and the support stability after the installation is good, and the stability of being connected of overtravel spring and operating device is high for test effect is good.
3. The invention provides a test device of a vacuum circuit breaker, a horizontal positioning structure comprises: the first positioning holes are respectively formed on the two side plates at two sides of the base; the second positioning hole is formed on the support arm and is arranged opposite to the first positioning hole; the positioning block passes through the second positioning hole and is connected with the first positioning hole in an interference fit manner; and the locking structure is used for locking and connecting the positioning block and the support arm in the test position. Compared with the prior art that the bolts need to be disassembled and assembled through the wrench, the positioning block and the locking structure have the advantages of simple structure and convenience in disassembly and assembly.
4. The invention provides a test device of a vacuum circuit breaker, a locking structure comprises: the positioning column is arranged on the support arm, is provided with a hole cavity which is communicated with the second positioning hole and used for the positioning block to move, and an L-shaped through groove formed on the outer wall of the positioning column, wherein the L-shaped through groove comprises a first section which is parallel to the moving direction of the positioning block and a second section which is arranged along the circumferential arc of the positioning column; the locking rod penetrates through the L-shaped through groove and is fixedly connected with the positioning block, and the locking rod can reciprocate along the first section and the second section of the L-shaped through groove. During the test, manual drive locking lever removes along the first section of L shape logical groove, drives the locating piece and is connected with the first locating hole interference fit of base, then removes along the second section of L shape logical groove, and the locating column spacing cooperation on locking lever and the support arm makes support arm and sideboard fixed connection on the one hand like this, on the other hand can inject the position of locating piece, guarantees that the locating piece can not separate with first locating hole because of the vibrations that operating device divide-shut brake brought during the test, and the reliability is higher.
5. The invention provides a test device of a vacuum circuit breaker, a longitudinal positioning structure comprises: the threaded hole is arranged on the mounting plate; the screw rod is connected with the base in a propping way after passing through the threaded hole, and a cushion block assembly in pressing connection with the base is arranged at the bottom of the screw rod. During the test, screw rod drive cushion subassembly and base pressfitting butt to guarantee that the support arm and the base of installing support set up perpendicularly, because can follow base top operation screw rod, more make things convenient for installer to operate, improved test efficiency.
6. The invention provides a test device of a vacuum circuit breaker, wherein a cushion block assembly comprises a rigid cushion block which is matched and screwed with a screw rod, and an elastic cushion block which is arranged between the rigid cushion block and a base, wherein the area of the elastic cushion block is larger than that of the rigid cushion block. The contact area between the screw rod and the base can be increased through the rigid cushion block and the elastic cushion block, so that the installation between the installation support and the base is firmer, in addition, the elastic cushion block can play a certain role in buffering, the screw rod is not easy to break under the action of long-time vibration, and the service life of the screw rod is prolonged.
7. According to the testing device of the vacuum circuit breaker, the surface of the support arm facing the other support arm is provided with the positioning plate, and the positioning plate is provided with the third positioning hole which is opposite to the threaded hole and used for the threaded rod to penetrate. The locating piece is connected with the middle part cooperation location of screw rod to under the long-time vibrations effect, guarantee that the screw rod can set up perpendicularly with the base, it is more firm to make the installation between installing support and the base.
8. According to the testing device of the vacuum circuit breaker, provided by the invention, the sheath sleeved on the screw is arranged at the joint of the screw, the mounting plate and the positioning plate, so that the screw is not easy to break under the action of long-time vibration, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of a test apparatus of a vacuum circuit breaker operating mechanism of the present invention mounted on a vacuum circuit breaker;
FIG. 2 is a schematic diagram showing an exploded structure of the test apparatus and the vacuum interrupter of FIG. 1;
Fig. 3 is a perspective view of a test apparatus of the operating mechanism of the vacuum interrupter of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is an enlarged schematic view of the portion A in FIG. 3;
fig. 6 is a perspective view of a vacuum circuit breaker according to the related art;
Fig. 7 is an exploded view of fig. 6.
Reference numerals illustrate: 1. a mounting bracket; 11. a mounting plate; 12. a support arm; 13. a threaded hole; 14. a positioning plate; 2. a base; 20. a side plate; 21. a first positioning hole; 3. a positioning block; 31. a lock lever; 4. positioning columns; 41. an L-shaped through groove; 5. a screw; 51. a rigid cushion block; 52. an elastic cushion block; 53. a sheath; 6. a connecting rod; 61. a first lever portion; 62. a second lever portion; 63. a first spring; 64. a driving block; 65. a second spring; 7. a crank arm; 8. an insulating cylinder assembly; 9. and a side plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying 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 present invention. 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 present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Examples
The embodiment provides a test device of a vacuum circuit breaker, as shown in fig. 1 and 2, comprising a mounting bracket 1, an over travel spring assembly, a horizontal positioning structure and a longitudinal positioning structure.
The mounting bracket 1 is provided with a plurality of over-travel spring assemblies which can be connected with an operating mechanism of the vacuum circuit breaker, as shown in fig. 3, the mounting bracket 1 comprises a mounting plate 11 which is arranged in parallel with the base 2 and is provided with the over-travel spring assemblies, and support arms 12 which are arranged on two sides of the mounting plate 11 and are perpendicular to the mounting plate 11, the mounting plate 11 is positioned above the base 2, the horizontal positioning structure is arranged on the support arms 12, and the longitudinal positioning structure is arranged on the mounting plate 11.
An over travel spring assembly, as shown in fig. 4, comprising: the connecting rod 6 is vertically arranged on the mounting plate 11 and is provided with a first rod part 61 which is arranged between the mounting plate 11 and the base 2 and is matched and connected with the crank arm 7 of the operating mechanism, and a second rod part 62 which extends out of the top of the mounting plate 11, and the bottom of the second rod part 62 is connected with the crank arm 7 of the operating mechanism through a bolt; a first spring 63 and a driving block 64, which are sleeved on the first rod portion 61, wherein the driving block 64 is driven by the mounting plate 11 to compress the first spring 63; the second spring 65 is sleeved on the second rod 62, one end of the second spring abuts against the mounting plate 11, and the other end abuts against a spacer provided at an end of the second rod 62. It should be noted that, the over travel spring assembly is equivalent to the over travel spring assembly in the insulating cylinder assembly, and stores energy when the operating mechanism is switched on, and releases energy when the operating mechanism is switched off, so as to provide the switching-off acting force for the operating mechanism.
A horizontal positioning structure, as shown in fig. 4 and 5, comprising: first positioning holes 21 formed in two side plates 20 on both sides of the base 2; the second positioning hole is formed on the support arm 12 and is arranged opposite to the first positioning hole 21; the positioning block 3 passes through the second positioning hole and is connected with the first positioning hole 21 in an interference fit manner; and a locking structure for locking and connecting the positioning block 3 with the support arm 12 in the test position, wherein the locking structure comprises: the positioning column 4 is arranged on the support arm 12 and is provided with a hole cavity which is communicated with the second positioning hole and used for the positioning block 3 to move, and an L-shaped through groove 41 formed on the outer wall of the positioning column 4, wherein the L-shaped through groove 41 comprises a first section which is parallel to the moving direction of the positioning block 3 and a second section which is arranged along the circumferential arc shape of the positioning column 4; the lock rod 31 passes through the L-shaped through groove 41 and is fixedly connected with the positioning block 3, and the lock rod 31 can reciprocate along the first section and the second section of the L-shaped through groove 41.
The longitudinal positioning structure, as shown in fig. 4, comprises a screw 5, a cushion block assembly and a positioning plate 14.
The screw 5 passes through the threaded hole 13 arranged on the mounting plate 11 and then is in propping connection with the base 2, a cushion block assembly in pressing connection with the base 2 is arranged at the bottom of the screw 5, and a sheath 53 sleeved on the screw 5 is arranged at the joint of the screw 5 and the mounting plate 11 and the positioning plate 14.
The cushion block assembly comprises a rigid cushion block 51 in threaded connection with the screw 5, and an elastic cushion block 52 arranged between the rigid cushion block 51 and the base 2, wherein the area of the elastic cushion block 52 is larger than that of the rigid cushion block 51, and in the embodiment, the elastic cushion block 52 can be made of elastic materials such as rubber.
The positioning plate 14 is disposed on a surface of one support arm 12 facing the other support arm 12, and a third positioning hole is formed on the positioning plate 14, which is disposed opposite to the threaded hole 13 and is used for the threaded rod 5 to pass through.
As an alternative embodiment, the positioning block 3 comprises a first section which is in interference fit with the cavity wall of the positioning post 4, and a second section which is in interference fit with the first positioning hole 21 of the side plate 20.
According to the testing device of the vacuum circuit breaker, as the over-travel spring assemblies are pre-installed on the mounting bracket 1, when the testing device is assembled, the mounting bracket 1 is only required to be placed on the base 2, and then the mounting bracket 1 is fixedly connected with the base 2 through the horizontal positioning structure and the longitudinal positioning structure, so that the mounting bracket 1 is only required to be disassembled, and compared with the mode that three insulating cylinder assemblies are required to be respectively installed on the base in the prior art, the disassembly and the assembly are quick and convenient, and the testing efficiency is high.
The installation process of the test device of the vacuum circuit breaker is as follows:
As shown in fig. 1, the mounting bracket 1 is placed on the base 2, the over-travel spring assembly is fixedly connected with the corresponding operating mechanism crank arm 7, then the lock rod 31 on the left side and the right side drives the positioning block 3 to be in interference fit connection with the first positioning hole 21 on the side plate 20, and then the screw 5 is driven, so that the cushion block assembly is in press fit abutting connection with the base 2.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (6)
1. A test device of a vacuum circuit breaker is characterized in that: comprising the steps of (a) a step of,
The mounting bracket (1) is provided with a plurality of over-travel spring assemblies which can be connected with an operating mechanism of the vacuum circuit breaker;
the horizontal positioning structure and the longitudinal positioning structure are fixed between the mounting bracket (1) and the base (2) of the vacuum circuit breaker, and the mounting bracket (1) is fixedly connected with the base (2);
The mounting bracket (1) comprises a mounting plate (11) which is arranged in parallel with the base (2) and provided with the over-travel spring assembly, and support arms (12) which are respectively arranged at two sides of the mounting plate (11) and are perpendicular to the mounting plate, the horizontal positioning structure is arranged on the support arms (12), and the longitudinal positioning structure is arranged on the mounting plate (11);
The horizontal positioning structure comprises: first positioning holes (21) which are respectively formed on two side plates (20) at two sides of the base (2); the second positioning hole is formed on the support arm (12) and is arranged opposite to the first positioning hole (21); the positioning block (3) passes through the second positioning hole and is connected with the first positioning hole (21) in interference fit; the locking structure is used for locking and connecting the positioning block (3) with the support arm (12) at the test position;
The longitudinal positioning structure comprises: a screw hole (13) provided in the mounting plate (11); the screw rod (5) passes through the threaded hole (13) and then is in propping connection with the base (2), and a cushion block assembly in pressing connection with the base (2) is arranged at the bottom of the screw rod (5).
2. The test device of a vacuum circuit breaker according to claim 1, wherein: the locking structure includes:
The positioning column (4) is arranged on the support arm (12) and is provided with a hole cavity which is communicated with the second positioning hole and used for the positioning block (3) to move, and an L-shaped through groove (41) formed on the outer wall of the positioning column (4), wherein the L-shaped through groove (41) comprises a first section which is parallel to the moving direction of the positioning block (3) and a second section which is arranged along the circumferential arc shape of the positioning column (4);
the lock rod (31) penetrates through the L-shaped through groove (41) and is fixedly connected with the positioning block (3), and the lock rod (31) can reciprocate along the first section and the second section of the L-shaped through groove (41).
3. The test device of a vacuum circuit breaker according to claim 1, wherein: the cushion block assembly comprises a rigid cushion block (51) which is in fit and threaded connection with the screw rod (5), and an elastic cushion block (52) which is arranged between the rigid cushion block (51) and the base (2), wherein the area of the elastic cushion block (52) is larger than that of the rigid cushion block (51).
4. A test apparatus for a vacuum interrupter as defined in claim 3, wherein: a locating plate (14) is arranged on the surface of the support arm (12) facing the other support arm (12), and a third locating hole which is opposite to the threaded hole (13) and used for the threaded rod (5) to penetrate is formed in the locating plate (14).
5. The test apparatus of a vacuum circuit breaker according to claim 4, wherein: the screw (5) is provided with a sheath (53) sleeved on the screw (5) at the joint of the mounting plate (11) and the positioning plate (14).
6. The test apparatus of a vacuum circuit breaker according to claim 5, wherein: the over travel spring assembly includes:
The connecting rod (6) is vertically arranged on the mounting plate (11) and is provided with a first rod part (61) which is arranged between the mounting plate (11) and the base (2) and is matched and connected with the crank arm (7) of the operating mechanism, and a second rod part (62) which extends out of the top of the mounting plate (11);
A first spring (63) and a driving block (64) sleeved on the first rod part (61), wherein the driving block (64) is driven by the mounting plate (11) to compress the first spring (63);
And a second spring (65) sleeved on the second rod part (62), wherein one end of the second spring is propped against the mounting plate (11), and the other end of the second spring is propped against a gasket arranged at the end part of the second rod part (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772732.5A CN110441678B (en) | 2019-08-21 | 2019-08-21 | Test device of vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910772732.5A CN110441678B (en) | 2019-08-21 | 2019-08-21 | Test device of vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110441678A CN110441678A (en) | 2019-11-12 |
| CN110441678B true CN110441678B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910772732.5A Active CN110441678B (en) | 2019-08-21 | 2019-08-21 | Test device of vacuum circuit breaker |
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| CN (1) | CN110441678B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202939281U (en) * | 2012-09-26 | 2013-05-15 | 安徽鑫龙电器股份有限公司 | Vacuum circuit breaker actuator running-in device |
| KR20130071183A (en) * | 2011-12-20 | 2013-06-28 | 엘에스산전 주식회사 | Interlock lock mechanism for vacuum circuit breaker |
| CN203690782U (en) * | 2013-09-12 | 2014-07-02 | 袁茂银 | Breaker assembly |
| CN203910651U (en) * | 2014-06-24 | 2014-10-29 | 浙江天虹电气金具有限公司 | Novel vacuum circuit breaker |
| CN204289236U (en) * | 2014-12-24 | 2015-04-22 | 常熟开关制造有限公司(原常熟开关厂） | A kind of transducer draw bail of vacuum circuit-breaker |
| CN210487924U (en) * | 2019-08-21 | 2020-05-08 | 巨邦集团有限公司 | Testing device of vacuum circuit breaker |
-
2019
- 2019-08-21 CN CN201910772732.5A patent/CN110441678B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130071183A (en) * | 2011-12-20 | 2013-06-28 | 엘에스산전 주식회사 | Interlock lock mechanism for vacuum circuit breaker |
| CN202939281U (en) * | 2012-09-26 | 2013-05-15 | 安徽鑫龙电器股份有限公司 | Vacuum circuit breaker actuator running-in device |
| CN203690782U (en) * | 2013-09-12 | 2014-07-02 | 袁茂银 | Breaker assembly |
| CN203910651U (en) * | 2014-06-24 | 2014-10-29 | 浙江天虹电气金具有限公司 | Novel vacuum circuit breaker |
| CN204289236U (en) * | 2014-12-24 | 2015-04-22 | 常熟开关制造有限公司(原常熟开关厂） | A kind of transducer draw bail of vacuum circuit-breaker |
| CN210487924U (en) * | 2019-08-21 | 2020-05-08 | 巨邦集团有限公司 | Testing device of vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110441678A (en) | 2019-11-12 |
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