CN112305414B - Switching-on and switching-off speed measuring device of extra-high voltage vacuum circuit breaker - Google Patents
Switching-on and switching-off speed measuring device of extra-high voltage vacuum circuit breaker Download PDFInfo
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- CN112305414B CN112305414B CN202011106868.1A CN202011106868A CN112305414B CN 112305414 B CN112305414 B CN 112305414B CN 202011106868 A CN202011106868 A CN 202011106868A CN 112305414 B CN112305414 B CN 112305414B
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- 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
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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Abstract
The invention discloses a switching-on and switching-off speed measuring device of an extra-high voltage vacuum circuit breaker. This special high voltage vacuum circuit breaker's divide-shut brake speed measuring device, through the measuring mechanism who sets up, can be when measuring, first motor starts and drives gear revolve, thereby make the rack remove left, steadily slide on the locating lever through the mount cooperation, can say when measuring that speed sensor promotes the set casing in reach the measurement purpose, the measurement finishes, first motor drives gear antiport, the rack moves to the right and drives speed sensor withdrawal set casing in, can reach good measurement effect, can also reach the primary protection to speed sensor simultaneously.
Description
Technical Field
The invention relates to the technical field of extra-high voltage vacuum circuit breakers, in particular to a switching-on and switching-off speed measuring device of an extra-high voltage vacuum circuit breaker.
Background
The vacuum circuit breaker is named because arc extinguishing media and insulating media of contact gaps after arc extinguishing are high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and can be arranged in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment.
The conventional switching-on and switching-off speed device of the vacuum circuit breaker is characterized in that a speed sensor is directly arranged near the switching-on and switching-off of the vacuum circuit breaker so as to achieve the purpose of measuring speed, the method is easy to damage the speed sensor due to exposure, and the device is troublesome to install, so that the switching-on and switching-off speed measuring device of the vacuum circuit breaker is needed to be invented.
Disclosure of Invention
The invention aims to provide a switching-on and switching-off speed measuring device of an extra-high voltage vacuum circuit breaker, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an extra-high voltage vacuum circuit breaker's divide-shut brake speed measuring device, includes shell, fixed establishment, measuring mechanism and protection machanism, left side middle part inner wall fixed connection measuring mechanism left side in the shell, it is provided with protection machanism to be close to the measuring mechanism left side in the shell, protection machanism left side fixed connection shell left side inner wall, rear side inner wall is close to measuring mechanism top and bottom fixed connection fixed establishment rear side in the shell.
The measuring mechanism comprises a fixed shell, a rack, a first motor, a motor supporting plate, a gear, a first locating block, a speed sensor, a locating rod, a fixed frame and a second locating block, wherein the fixed shell is internally provided with the speed sensor, the right side of the speed sensor is fixedly connected with the middle part of the fixed frame, the left side of the bottom in the fixed shell is fixedly connected with the bottom of the first locating block, the right side of the bottom in the fixed shell is fixedly connected with the bottom of the second locating block, the left end and the right end of the locating rod are fixedly connected between the first locating block and the second locating block, the bottom of the fixed frame is slidably connected with the locating rod, the right side outside the fixed shell is provided with the rack, the left side of the rack extends into the middle part of the right side of the speed sensor fixedly connected in the fixed shell, the left side of the bottom of the rack is provided with the gear, the gear is meshed with the rack, the middle part of the gear is fixedly connected with the front side of the first motor, first motor bottom fixed connection motor backup pad bottom left side, motor backup pad right side fixed connection set casing right side inner wall.
Preferably, fixed establishment includes sucking disc, rubber column, joint round pin, air pump and trachea, the rear side inner wall fixed connection air pump back in the shell, air pump left side and right side fixed connection trachea one end, trachea other end fixed connection rubber column front end, the rubber column rear end runs through the shell and extends to the shell back, shell back rubber column rear end fixed connection sucking disc middle part, rubber column front end grafting joint round pin in the shell.
Preferably, the four suckers are distributed near the four corners of the back of the shell, and the middle of the shell between the suckers is adhered with the front of the rubber block.
Preferably, the air pump is provided with two suckers which are distributed in the shell and are close to the top and the bottom, the two suckers in the top of the back of the shell are fixedly connected with the air pump in the top of the shell through air pipes, and the two suckers in the bottom of the back of the shell are fixedly connected with the air pump in the bottom of the shell through air pipes.
Preferably, the air pipe runs through the rubber column and the clamping pin and extends into the sucker, and the rubber column and the sucker are integrally formed.
Preferably, the protection mechanism comprises a second motor, a pinion, a protection plate, a moving gear, a protection opening, a first fixed block, a fixed rod, a glass cover, a sliding block and a second fixed block, the middle part of the left side of the shell is provided with a measurement opening, the left side of the outer shell corresponds to the right side of the measurement opening and is fixedly connected with the glass cover, the protection plate is arranged at the top part of the right side of the inner shell corresponding to the measurement opening, the top part of the left side of the inner shell is fixedly connected with the left side of the first fixed block, the left side of the inner shell is close to the left side of the top part of the protection plate and is fixedly connected with the left side of the second fixed block, the inner sides of the first fixed block and the second fixed block are fixedly connected with the top end and the bottom end of the fixed rod, the front side and the rear side of the protection plate correspond to the inner sides of the fixed rod and are fixedly connected with the sliding block, the sliding block is close to the outer sliding connection fixed rod, the moving gear is arranged at the middle part of the protection plate, the pinion is meshed with the certain gear, the middle part of the pinion is fixedly connected with the front side of a second motor, and the bottom of the second motor is fixedly connected with the top of the fixed shell.
Preferably, the two protection plates are distributed at the top and the bottom of the left side of the fixed shell.
Preferably, the number of the positioning rods is two, and the two positioning rods are distributed at the top and the bottom in the fixed shell.
Compared with the prior art, the invention has the beneficial effects that:
1. this special high voltage vacuum circuit breaker's divide-shut brake speed measuring device, through the measuring mechanism who sets up, can be when measuring, first motor starts and drives gear revolve, thereby make the rack remove left, steadily slide on the locating lever through the mount cooperation, can say when measuring that speed sensor promotes the set casing in reach the measurement purpose, the measurement finishes, first motor drives gear antiport, the rack moves to the right and drives speed sensor withdrawal set casing in, can reach good measurement effect, can also reach the primary protection to speed sensor simultaneously.
2. This special high voltage vacuum circuit breaker's divide-shut brake speed measuring device, through the protection mechanism that sets up, drive the pinion through the second motor and rotate, through sliding block cooperation sliding connection dead lever, make the protection shield remove to shell top and bottom, reach the purpose that the measurement mouth was opened and was closed, guarantee the convenient measurement when measuring, reach the purpose of further protection through the protection shield when not measuring, further reach the purpose of protection through the glass cover when measuring simultaneously, the messenger is not fragile.
3. This special high voltage vacuum circuit breaker's divide-shut brake speed measuring device, through the fixed establishment who sets up, can be when fixed, directly place the device by special high voltage vacuum circuit breaker divide-shut brake, hold the other outer wall of special high voltage vacuum circuit breaker divide-shut brake through the sucking disc, the air in the sucking disc reaches preliminary fixed purpose is managed to air pump work, glues the piece simultaneously and can further reach fixed purpose.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 3 is a schematic front view of the internal structure of the present invention;
FIG. 4 is a schematic view of a protection mechanism taken out;
fig. 5 is an enlarged view of a structure shown in fig. 4.
In the figure: 1. a housing; 2. a fixing mechanism; 21. a suction cup; 22. a rubber column; 23. a latch pin; 24. gluing blocks; 25. an air pump; 26. an air tube; 3. a measuring mechanism; 31. a stationary case; 32. a rack; 33. a first motor; 331. a motor support plate; 34. a gear; 35. a first positioning block; 36. a speed sensor; 37. positioning a rod; 38. a fixed mount; 39. a second positioning block; 4. a protection mechanism; 41. a second motor; 42. a pinion gear; 43. a protection plate; 431. moving the teeth; 432. protecting the mouth; 44. a first fixed block; 45. fixing the rod; 46. a glass cover; 47. a measurement port; 48. a slider; 49. and a second fixed block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an extra-high voltage vacuum circuit breaker's divide-shut brake speed measuring device, includes shell 1, fixed establishment 2, measuring mechanism 3 and protection machanism 4, and the 3 left sides of left side middle part inner wall fixed connection measuring mechanism in the shell 1, is close to measuring mechanism 3 left sides in the shell 1 and is provided with protection machanism 4, and the 1 left side inner wall of 4 left sides fixed connection shells of protection machanism, the rear side inner wall is close to measuring mechanism 3 top and the 2 rear sides of bottom fixed connection fixed establishment in the shell 1.
The measuring mechanism 3 comprises a fixed shell 31, a rack 32, a first motor 33, a motor supporting plate 331, a gear 34, a first positioning block 35, a speed sensor 36, a positioning rod 37, a fixed frame 38 and a second positioning block 39, wherein the fixed shell 31 is internally provided with the speed sensor 36, the right side of the speed sensor 36 is fixedly connected with the middle part of the fixed frame 38, the left side of the bottom in the fixed shell 31 is fixedly connected with the bottom of the first positioning block 35, the right side of the bottom in the fixed shell 31 is fixedly connected with the bottom of the second positioning block 39, the left end and the right end of the positioning rod 37 are fixedly connected between the first positioning block 35 and the second positioning block 39, the bottom of the fixed frame 38 is slidably connected with the positioning rod 37, the two positioning rods 37 are distributed at the top and the bottom in the fixed shell 31, the right side outside the fixed shell 31 is provided with the rack 32, the left side, gear 34 meshes rack 32, gear 34 middle part fixed connection first motor 33 front side, first motor 33 bottom fixed connection motor backup pad 331 bottom left side, motor backup pad 331 right side fixed connection set casing 31 right side inner wall, through the measuring mechanism 3 that sets up, can be when measuring, first motor 33 starts to drive gear 34 and rotates, thereby make rack 32 remove left, stable slip on locating lever 37 is being cooperated through mount 38, can say speed sensor 36 when measuring and release and reach the measurement purpose in the set casing 31, after the measurement, first motor 33 drives gear 34 antiport, rack 32 moves right and drives speed sensor 36 and retracts in set casing 31, can reach good measuring effect, can also reach the preliminary protection to tacho sensor simultaneously.
The fixing mechanism 2 comprises suction cups 21, rubber columns 22, clamping pins 23, an air pump 25 and an air pipe 26, the inner wall of the rear side in the shell 1 is fixedly connected with the back surface of the air pump 25, the air pump 25 is provided with two suction cups 21 which are distributed in the shell 1 and are close to the top and the bottom, the two suction cups 21 at the top of the back surface of the shell 1 are fixedly connected with the air pump 25 at the top of the shell 1 through the air pipe 26, the two suction cups 21 at the bottom of the back surface of the shell 1 are fixedly connected with the air pump 25 at the bottom of the shell 1 through the air pipe 26, the air pipe 26 is provided with a one-way valve close to the suction cups 21 and can only pump out the air in the suction cups 21, the left side and the right side of the air pump 25 are fixedly connected with one end of the air pipe 26, the other end of the air pipe 26 is fixedly connected with the front end of the rubber column 22, trachea 26 runs through rubber column 22 and joint round pin 23 and extends to in the sucking disc 21, and rubber column 22 and sucking disc 21 integrated into one piece, 22 front ends of rubber column peg graft joint round pin 23 in the shell 1, through the fixed establishment 2 that sets up, can be when fixed, directly place the device by extra-high voltage vacuum circuit breaker divide-shut brake, hold the other outer wall of extra-high voltage vacuum circuit breaker divide-shut brake through sucking disc 21, air pump 25 work is managed to find time the air in the sucking disc 21 and is reached preliminary fixed purpose, glue piece 24 simultaneously and can further reach fixed purpose.
The protection mechanism 4 comprises a second motor 41, a pinion 42, a protection plate 43, a movable tooth 431, a protection port 432, a first fixed block 44, a fixed rod 45, a glass cover 46, a sliding block 48 and a second fixed block 49, wherein the middle part of the left side of the shell 1 is provided with a measurement port 47, the left side of the outer side of the shell 1 corresponding to the measurement port 47 is fixedly connected with the right side of the glass cover 46, the top of the right side of the inner side of the shell 1 corresponding to the measurement port 47 is provided with the protection plate 43, the top of the left side of the inner side of the shell 1 is fixedly connected with the left side of the first fixed block 44, the left side of the inner side of the shell 1 close to the top of the protection plate 43 is fixedly connected with the left side of the second fixed block 49, the top and the bottom of the fixed rod 45 are fixedly connected with the inner sides of the sliding blocks 45 at the front side and the rear side of the protection plate 43 corresponding to the fixed rod 45, the sliding block 48 is close to the outer side of the sliding connection fixed rod 45, the movable tooth 431 is arranged at the middle part of the protection plate 43, the protection plate 43 is engaged with the pinion 42 through a certain tooth, pinion 42 middle part fixed connection second motor 41 front side, second motor 41 bottom fixed connection set casing 31 top, protection mechanism 4 through the setting, drive pinion 42 through second motor 41 and rotate, through sliding block 48 cooperation sliding connection dead lever 45, make protection shield 43 to shell 1 top and bottom removal, reach the purpose that measuring port 47 opened and closed, guarantee the convenient measurement when measuring, reach the purpose of further protection through protection shield 43 when not measuring, further reach the purpose of protection through glass cover 46 when measuring simultaneously, the not fragile of messenger.
Wherein: the protection plate 43 is provided in two pieces, distributed on the top and bottom of the left side of the fixing case 31.
When in use, the device is directly placed beside an on-off switch of an extra-high voltage vacuum circuit breaker, the outer wall beside the on-off switch of the extra-high voltage vacuum circuit breaker is sucked by the sucking disc 21, the air pump 25 works to evacuate air in the sucking disc to achieve the purpose of preliminary fixing, meanwhile, the rubber block 24 is fixed, the pinion 42 is driven to rotate by the second motor 41, the protective plate 43 is driven to move towards the top and the bottom of the shell 1 by matching with the sliding connection fixing rod 45 through the sliding block 48, the measurement port 47 is opened, the first motor 33 is started to drive the gear 34 to rotate, so that the rack 32 moves leftwards, the rack 32 stably slides on the positioning rod 37 by matching with the fixing frame 38, the speed sensor 36 can push out the fixing shell 31 to achieve measurement during measurement, meanwhile, the purpose of protection is further achieved by the glass cover 46 during measurement, the rack is not easy to damage, the measurement is finished, the first motor 33 drives the gear 34 to reversely rotate, the rack 32 moves right to drive the speed sensor 36 to retract into the fixed shell 31, the second motor 41 drives the pinion 42 to rotate, and the fixed rod 45 is connected in a sliding manner through the sliding block 48 in a matching manner, so that the protection plates 43 approach each other and the measurement port 47 is closed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an extra-high voltage vacuum circuit breaker's divide-shut brake speed measuring device, includes shell (1), fixed establishment (2), measuring mechanism (3) and protection machanism (4), its characterized in that: the inner wall of the middle part of the left side in the shell (1) is fixedly connected with the left side of the measuring mechanism (3), a protection mechanism (4) is arranged in the shell (1) and close to the left side of the measuring mechanism (3), the left side of the protection mechanism (4) is fixedly connected with the inner wall of the left side of the shell (1), and the inner wall of the rear side in the shell (1) is close to the rear sides of the top and the bottom of the measuring mechanism (3) and fixedly connected with the fixing mechanism (2);
the measuring mechanism (3) comprises a fixed shell (31), a rack (32), a first motor (33), a motor supporting plate (331), a gear (34), a first positioning block (35), a speed sensor (36), a positioning rod (37), a fixed frame (38) and a second positioning block (39), wherein the fixed shell (31) is internally provided with the speed sensor (36), the right side of the speed sensor (36) is fixedly connected with the middle part of the fixed frame (38), the left side of the inner bottom of the fixed shell (31) is fixedly connected with the bottom of the first positioning block (35), the right side of the inner bottom of the fixed shell (31) is fixedly connected with the bottom of the second positioning block (39), the left end and the right end of the positioning rod (37) are fixedly connected between the first positioning block (35) and the second positioning block (39), the bottom of the fixed frame (38) is slidably connected with the positioning rod (37), and the outer right side of the fixed shell (, rack (32) left side extends into fixed shell (31) internal fixed connection speedtransmitter (36) right side middle part, rack (32) bottom left side is provided with gear (34), gear (34) meshing rack (32), first motor (33) front side of gear (34) middle part fixed connection, first motor (33) bottom fixed connection motor backup pad (331) bottom left side, motor backup pad (331) right side fixed connection set shell (31) right side inner wall.
2. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 1, characterized in that: fixed establishment (2) are including sucking disc (21), rubber column (22), joint round pin (23), air pump (25) and trachea (26), rear side inner wall fixed connection air pump (25) back in shell (1), air pump (25) left side and right side fixed connection trachea (26) one end, trachea (26) other end fixed connection rubber column (22) front end, rubber column (22) rear end runs through the shell and extends to shell (1) the back, shell (1) back rubber column (22) rear end fixed connection sucking disc (21) middle part, rubber column (22) front end grafting joint round pin (23) in shell (1).
3. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 2, characterized in that: the sucking discs (21) are provided with four adhesive blocks (24) which are distributed near the four corners of the back of the shell (1), and the middle of the shell (1) between the sucking discs (21) is adhered with the front surface.
4. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 2, characterized in that: air pump (25) are provided with two and distribute and are close to top and bottom in shell (1), two sucking discs (21) in shell (1) back top pass through trachea (26) fixed connection shell (1) top air pump (25), two sucking discs (21) in shell (1) back bottom pass through trachea (26) fixed connection shell (1) bottom air pump (25).
5. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 2, characterized in that: the air pipe (26) penetrates through the rubber column (22) and the clamping pin (23) and extends into the sucker (21), and the rubber column (22) and the sucker (21) are integrally formed.
6. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 1, characterized in that: the protection mechanism (4) comprises a second motor (41), a pinion (42), a protection plate (43), a movable gear (431), a protection port (432), a first fixing block (44), a fixing rod (45), a glass cover (46), a sliding block (48) and a second fixing block (49), wherein a measurement port (47) is formed in the middle of the left side of the shell (1), the left side of the outer side of the shell (1) corresponds to the measurement port (47) and is fixedly connected with the right side of the glass cover (46), the protection plate (43) is arranged at the top of the measurement port (47) corresponding to the right side in the shell (1), the left side of the top of the left side of the inner side of the shell (1) is fixedly connected with the first fixing block (44), the left side of the inner side of the shell (1) is close to the left side of the top of the protection plate (43) and is fixedly connected with the second fixing block (49), the top end and the bottom end of the fixing rod (45) are fixedly connected with the inner sides of the first fixing block (44) and the second fixing block (49), the protection plate (43) front side and the rear side correspond dead lever (45) fixed connection sliding block (48) inboard, sliding block (48) are close to outside sliding connection dead lever (45), removal tooth (431) have been seted up at protection plate (43) middle part, protection plate (43) are through certain tooth meshing pinion (42), pinion (42) middle part fixed connection second motor (41) front side, second motor (41) bottom fixed connection set casing (31) top.
7. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 6, characterized in that: the two protection plates (43) are distributed at the top and the bottom of the left side of the fixed shell (31).
8. The switching-on and switching-off speed measuring device of the extra-high voltage vacuum circuit breaker according to claim 1, characterized in that: the two positioning rods (37) are distributed at the top and the bottom in the fixed shell (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106868.1A CN112305414B (en) | 2020-10-16 | 2020-10-16 | Switching-on and switching-off speed measuring device of extra-high voltage vacuum circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106868.1A CN112305414B (en) | 2020-10-16 | 2020-10-16 | Switching-on and switching-off speed measuring device of extra-high voltage vacuum circuit breaker |
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| Publication Number | Publication Date |
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| CN112305414A CN112305414A (en) | 2021-02-02 |
| CN112305414B true CN112305414B (en) | 2021-09-17 |
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| CN202011106868.1A Active CN112305414B (en) | 2020-10-16 | 2020-10-16 | Switching-on and switching-off speed measuring device of extra-high voltage vacuum circuit breaker |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1261008A1 (en) * | 2001-05-22 | 2002-11-27 | Gewiss S.P.A. | Enclosed magnetothermal electric circuit breaker |
| CN206095609U (en) * | 2016-09-20 | 2017-04-12 | 国家电网公司 | A sensor fixed device for circuit breaker speed measuring in -process |
| CN207183183U (en) * | 2017-08-29 | 2018-04-03 | 沈阳晨源电气有限公司 | A kind of breaker with divide-shut brake speed detection function |
| CN110687444A (en) * | 2019-11-07 | 2020-01-14 | 广东电网有限责任公司 | Device and method for testing switching-on and switching-off average speed of 10kV vacuum circuit breaker |
| CN210142167U (en) * | 2019-04-12 | 2020-03-13 | 天地（常州）自动化股份有限公司 | Switching-on and switching-off speed measuring device for vacuum contactor or vacuum circuit breaker |
| CN210720655U (en) * | 2019-09-11 | 2020-06-09 | 上饶市上宇智能电气有限公司 | Switching-on and switching-off speed measuring device of vacuum circuit breaker |
| CN210923741U (en) * | 2019-12-17 | 2020-07-03 | 西安西电高压开关有限责任公司 | Speed measuring device of circuit breaker |
-
2020
- 2020-10-16 CN CN202011106868.1A patent/CN112305414B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1261008A1 (en) * | 2001-05-22 | 2002-11-27 | Gewiss S.P.A. | Enclosed magnetothermal electric circuit breaker |
| CN206095609U (en) * | 2016-09-20 | 2017-04-12 | 国家电网公司 | A sensor fixed device for circuit breaker speed measuring in -process |
| CN207183183U (en) * | 2017-08-29 | 2018-04-03 | 沈阳晨源电气有限公司 | A kind of breaker with divide-shut brake speed detection function |
| CN210142167U (en) * | 2019-04-12 | 2020-03-13 | 天地（常州）自动化股份有限公司 | Switching-on and switching-off speed measuring device for vacuum contactor or vacuum circuit breaker |
| CN210720655U (en) * | 2019-09-11 | 2020-06-09 | 上饶市上宇智能电气有限公司 | Switching-on and switching-off speed measuring device of vacuum circuit breaker |
| CN110687444A (en) * | 2019-11-07 | 2020-01-14 | 广东电网有限责任公司 | Device and method for testing switching-on and switching-off average speed of 10kV vacuum circuit breaker |
| CN210923741U (en) * | 2019-12-17 | 2020-07-03 | 西安西电高压开关有限责任公司 | Speed measuring device of circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN112305414A (en) | 2021-02-02 |
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