CN111397879A - High-voltage circuit breaker fault simulation device and simulation method - Google Patents
High-voltage circuit breaker fault simulation device and simulation method Download PDFInfo
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- CN111397879A CN111397879A CN202010279999.3A CN202010279999A CN111397879A CN 111397879 A CN111397879 A CN 111397879A CN 202010279999 A CN202010279999 A CN 202010279999A CN 111397879 A CN111397879 A CN 111397879A
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- circuit breaker
- voltage circuit
- operating mechanism
- damping
- spring
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- 238000004088 simulation Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000013016 damping Methods 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000001133 acceleration Effects 0.000 claims description 12
- 239000003921 oil Substances 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides a high-voltage circuit breaker fault simulation device and a simulation method, wherein the simulation device comprises a bracket, a measured high-voltage circuit breaker is arranged above the bracket, the measured high-voltage circuit breaker realizes the switching-off and switching-on actions through an operating mechanism, the operating mechanism is arranged in the bracket, and the device also comprises: the device comprises a performance testing assembly, a damping device and a spring adjusting device, wherein the damping device is arranged on a transmission assembly of an operating mechanism, the spring adjusting device is arranged below the operating mechanism and is abutted against the bottom of the operating mechanism, and the performance testing assembly is arranged on the operating mechanism; the invention realizes the simulation of the oil leakage of the high-voltage breaker buffer, the mechanical jamming, the fatigue of the operating mechanism spring and other faults, and can measure the mechanical characteristics of the high-voltage breaker in a fault state by an external breaker characteristic analyzer, a vibration collector, a stress collector and the like.
Description
Technical Field
The invention relates to the field of high-voltage electrical appliances, in particular to a high-voltage circuit breaker fault simulation device and a simulation method.
Background
The high-voltage circuit breaker has a complex structure and a severe working environment, and at present, when the circuit breaker breaks down, the specific fault condition and the fault reason are difficult to find, so that the mechanical characteristics of the circuit breaker under various common fault conditions need to be detected, and the fault reason is found by comparing the mechanical characteristics with the mechanical characteristics of the circuit breaker which breaks down on site; therefore, engineers check each component of the fault circuit breaker one by one, which is long in time consumption and low in efficiency.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a fault simulation device for a high-voltage circuit breaker, which can solve the problems of failure, fault finding condition and low reason efficiency of the circuit breaker.
The technical scheme is as follows: the invention provides a high-voltage circuit breaker fault simulation device, which comprises a bracket, wherein a tested high-voltage circuit breaker is arranged above the bracket, the tested high-voltage circuit breaker realizes the switching-off and switching-on actions through an operating mechanism, the operating mechanism is arranged in the bracket, and the device also comprises: the device comprises a performance testing assembly, a damping device and a spring adjusting device, wherein the damping device is installed on a transmission assembly of an operating mechanism, the spring adjusting device is installed below the operating mechanism and is abutted against the bottom of the operating mechanism, and the performance testing assembly is installed on the operating mechanism.
Further, comprising:
the transmission assembly comprises a first rotating shaft, a transmission connecting rod and a second rotating shaft, and two ends of the transmission connecting rod are respectively and rotatably connected with one ends of the first rotating shaft and the second rotating shaft.
Further, comprising:
the damping device includes two, is marked as first damping device and second damping device, first damping device installs on first axis of rotation, the second damping device is installed on the second axis of rotation.
Further, comprising:
the simulation device further comprises an adjustable buffer, wherein the adjustable buffer is installed at one end of the operating mechanism and is connected with the spring adjusting device.
Further, comprising:
an oil outlet valve is installed on one side of the adjustable buffer.
Further, comprising:
first damping device includes first damping ejector pin, first damping briquetting and elastic component, first damping ejector pin is including thin end and the butt that meets, thin end plug-in connection in the accommodation space of first damping briquetting, the elastic component includes two, and the symmetry sets up respectively the upper and lower both sides of thin end in the first damping briquetting, the one end of elastic component is fixed the junction of thin end and butt.
Further, comprising:
spring adjusting device includes regulating plate, screw rod and regulating plate down, the screw rod includes two, and the symmetry is installed respectively the lower terminal surface both sides of last regulating plate, and screw rod one end with the lower terminal surface butt of last regulating plate, the other end passes the regulating plate down, the up end fixed mounting divide-shut brake spring of going up the regulating plate.
Further, comprising:
the lower adjusting plate is provided with a through hole, and the screw penetrates through the lower adjusting plate through the through hole.
Further, comprising:
the performance testing assembly comprises an acceleration sensor, a strain sensor and a vibration sensor, wherein the acceleration sensor and the strain sensor are both installed on the transmission connecting rod, and the vibration sensor is installed on the transmission assembly.
The invention also provides a fault simulation method of the high-voltage circuit breaker, which is based on the simulation device and comprises the following steps:
starting the high-voltage circuit breaker, and operating the operating mechanism to work;
the performance testing assembly detects the speed, the stress condition and the deformation condition of the operating mechanism;
the damping device applies resistance to simulate jamming and detects the jamming resistance of the operating mechanism;
adjusting the spring adjusting device so as to detect the fatigue resistance of the opening and closing spring;
and closing the performance testing assembly, the damping device and the spring adjusting device, and shutting down the high-voltage circuit breaker.
Has the advantages that: the invention realizes the simulation of the faults of oil leakage, mechanical jamming, operating mechanism spring fatigue and the like of the high-voltage breaker buffer, can measure the mechanical characteristics of the high-voltage breaker in a fault state by externally connecting equipment such as a breaker characteristic analyzer, a vibration collector, a stress collector and the like, and has the advantages of simple structure, easy operation and convenient measurement.
Drawings
Fig. 1 is a cross-sectional view of a fault simulation apparatus for a high voltage circuit breaker according to the present invention;
FIG. 2 is a schematic view of a portion of the spring adjustment apparatus of the present invention;
fig. 3 is a schematic view of a damping device according to the present invention.
The figure includes: the device comprises a support 1, a performance testing component 2, an acceleration sensor 21, a strain gauge sensor 22, a vibration sensor 23, a damping device 4, a first damping device 41, a first damping ejector rod 411, a thin end 4111, a thick end 4112, a first damping pressing block 412, an elastic piece 413, a second damping device 42, a spring adjusting device 5, an upper adjusting plate 51, a screw rod 52, a lower adjusting plate 53, a through hole 531, an operating mechanism 10, a transmission component 101, a first rotating shaft 1011, a transmission connecting rod 1012, a second rotating shaft 1013, a switching-off and switching-on spring 102 and an adjustable buffer 103.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a fault simulation device for a high-voltage circuit breaker, which comprises a support 1, wherein the support 1 can be a frame structure containing an operating mechanism 10, a measured high-voltage circuit breaker is installed above the support 1, the measured high-voltage circuit breaker realizes switching-off and switching-on actions through the operating mechanism 10, and the operating mechanism 10 is arranged in the support 1.
The circuit breaker adopts a common high-voltage circuit breaker in the market, an operating mechanism 10 of the circuit breaker generally comprises a transmission assembly 101, a switching-on/off spring 102 and an adjustable buffer 103, the transmission assembly 101 comprises a first rotating shaft 1011, a transmission connecting rod 1012 and a second rotating shaft 1013, two ends of the transmission connecting rod 1012 are respectively rotatably connected with one end of the first rotating shaft 1011 and one end of the second rotating shaft 1013, and the adjustable buffer 103 is installed at one end of the operating mechanism 10 and is connected with a spring adjusting device 5.
Furthermore, an oil outlet valve 1031 is installed on one side of the adjustable buffer 103, the oil outlet valve 1031 is adjusted to release hydraulic oil, the hydraulic oil in the buffer is gradually reduced, the oil leakage fault of the buffer is simulated, the mechanical characteristics of the breaker under the condition of different leakage amounts are measured, and the oil leakage fault of the buffer is the fault generated by the loss of the buffer after the hydraulic oil in the buffer is leaked.
Further, the apparatus further comprises: the performance testing device comprises a performance testing assembly 2, a damping device 4 and a spring adjusting device 5, wherein the damping device 4 is installed on a transmission assembly 101 of an operating mechanism 10, the spring adjusting device 5 is installed below the operating mechanism 10 and is abutted against the bottom of the operating mechanism 10, and the performance testing assembly 2 is installed on the operating mechanism 10.
The damping device 4 includes two damping devices, which are a first damping device 41 and a second damping device 42, the first damping device 41 is installed on the first rotating shaft 1011, the second damping device 42 is installed on the second rotating shaft 1013, and the adjustable buffer 103 is connected to the second rotating shaft 1013, so that when the buffer 103 absorbs energy, a resistance can be applied by the second damping device 42 to simulate the jamming of the transmission assembly 101.
The first damping device 41 is mounted on the first rotating shaft 1011, and the first rotating shaft 1011 is in transmission connection with the opening and closing spring 102, so that the first damping device 41 can apply resistance to simulate the jamming condition of the transmission assembly 101 in the link that the opening and closing spring 102 outputs force through the first rotating shaft 1011.
Further, in this embodiment, as shown in fig. 3, the first damping device 41 includes a first damping ejector pin 411, a first damping pressing block 412 and two elastic members 413, the first damping ejector pin 411 includes a thin end 4111 and a thick end 4112 connected to each other, the thin end 4111 is inserted into the accommodating space of the first damping pressing block 412, the two elastic members 413 include two elastic members 413, which are respectively symmetrically disposed on the upper and lower sides of the thin end 4111 inside the first damping pressing block 412, one end of the elastic member 413 is fixed at the connection between the thin end 4111 and the thick end 4112, the first damping pressing block 412 is provided with a nut, and the nut on the pressing block is adjusted to adjust the pressure of the elastic member 413, so as to adjust the magnitude of the applied damping force. The second damping device has the same structure as the first damping device, and the invention is not described herein again.
In this embodiment, the elastic member 413 may be provided as a spring.
Further, in this embodiment, as shown in fig. 2, the spring adjusting device 5 includes an upper adjusting plate 51, two screws 52 and a lower adjusting plate 53, where the two screws 53 are symmetrically installed on two sides of a lower end surface of the upper adjusting plate 52, and one end of each screw 53 abuts against a lower end surface of the upper adjusting plate 51, and the other end of each screw passes through the lower adjusting plate 53, the upper end surface of the upper adjusting plate is fixedly installed with the opening and closing spring 102, the lower adjusting plate 53 is provided with a through hole 531, and the screws 53 penetrate through the lower adjusting plate 53 through the through holes 531 and are installed and connected.
The screwing-in or screwing-out depth of the screw rod 52 is adjusted, the tail end of the screw rod 52 is directly pressed on the opening and closing spring through the upper adjusting plate 51, so that the compression amount of the opening and closing spring is adjusted, the output force of the spring is directly influenced by the size of the compression amount, the fatigue fault of the spring can be simulated by adjusting the compression amount, and the mechanical characteristics under different loosening amounts are measured.
The performance testing assembly 2 comprises an acceleration sensor 21, a strain type sensor 22 and a vibration sensor 23, wherein the acceleration sensor 21 and the strain type sensor 22 are both arranged on a transmission connecting rod 1012, and the vibration sensor is arranged on the transmission assembly 101.
An acceleration sensor is a sensor capable of measuring acceleration. The damper is generally composed of a mass block, a damper, an elastic element, a sensitive element, an adjusting circuit and the like. In the acceleration process, the sensor obtains an acceleration value by measuring the inertial force borne by the mass block and utilizing Newton's second law.
Strain gauge sensors are based on measuring the strain generated by a forced deformation of an object. Resistive strain gauges are the most commonly used sensing elements. It is a sensing element that can convert changes in strain on a mechanical member into changes in resistance.
The vibration sensor is a sensor for detecting an impact force or acceleration, and a piezoelectric device that generates an electric charge when a stress is applied is generally used, and there are sensors that can detect the impact force or acceleration using other materials and methods.
Mechanical characteristics of the high-voltage circuit breaker in a fault state are measured through the external circuit breaker characteristic analyzer, the vibration collector and the stress collector, and the device has the advantages of being simple in structure, easy to operate and convenient to measure.
The invention also provides a fault simulation method based on the fault simulation device, which comprises the following steps: the method comprises the following steps:
firstly, starting the high-voltage circuit breaker, and operating the operating mechanism 10;
secondly, the performance testing component 2 detects the speed, the stress condition and the deformation condition of the operating mechanism 10;
the damping device 4 applies resistance to simulate jamming and detects the usability of the operating mechanism 10;
adjusting the spring adjusting device 5 so as to detect the fatigue resistance of the opening and closing spring 102 and detect the oil leakage fault of the adjustable buffer by adopting the oil outlet valve simulation;
and finally, closing the performance testing assembly 2, the damping device 4, the spring adjusting device 5 and the oil outlet valve 1031, and shutting down the high-voltage circuit breaker.
The invention does not limit the working sequence of the performance testing assembly 2, the damping device 5, the spring adjusting device and the oil outlet valve, can simultaneously carry out simulation detection on the circuit breaker, and can also carry out simulation detection singly or in combination.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a high voltage circuit breaker fault simulation device, includes support (1), is surveyed high voltage circuit breaker install in support (1) top, it realizes breaking brake and closing action through operating mechanism (10) to be surveyed high voltage circuit breaker, operating mechanism arranges in support (1), its characterized in that, the device still includes: the device comprises a performance testing assembly (2), a damping device (4) and a spring adjusting device (5), wherein the damping device (4) is installed on a transmission assembly (101) of an operating mechanism (10), the spring adjusting device (5) is installed below the operating mechanism (10) and abutted to the bottom of the operating mechanism, and the performance testing assembly (2) is installed on the operating mechanism (10).
2. The high voltage circuit breaker fault simulation device according to claim 1, wherein the transmission assembly (101) comprises a first rotation shaft (1011), a transmission link (1012) and a second rotation shaft (1013), and both ends of the transmission link (1012) are rotatably connected with one end of the first rotation shaft (1011) and one end of the second rotation shaft (1013), respectively.
3. The high voltage circuit breaker fault simulation arrangement according to claim 2, characterized in that the performance testing assembly (2) comprises an acceleration sensor (21), a strain gauge sensor (22) and a vibration sensor (23), both mounted on a transmission linkage (1012), the vibration sensor being mounted on the transmission assembly (101).
4. The high voltage circuit breaker fault simulation device according to claim 2, characterized in that the damping device (4) comprises two, denoted as a first damping device (41) and a second damping device (42), the first damping device (41) being mounted on the first rotation axis (1011) and the second damping device (42) being mounted on the second rotation axis (1013).
5. The high-voltage circuit breaker fault simulation device according to claim 2, wherein the first damping device (41) comprises a first damping jack (411), a first damping pressure block (412) and an elastic member (413), the first damping jack (411) comprises a thin end (4111) and a thick end (4112) which are connected, the thin end (4111) is inserted into the accommodating space of the first damping pressure block (412), the elastic member (413) comprises two thin ends (4111) and two thick ends (4112) which are symmetrically arranged in the first damping pressure block (412), and one end of the elastic member (413) is fixed at the connection position of the thin end (4111) and the thick end (4112).
6. The high voltage circuit breaker fault simulation device according to claim 1, characterized in that the simulation device further comprises an adjustable buffer (103), wherein the adjustable buffer (103) is mounted at one end of the operating mechanism (10) and is connected with the spring adjustment device (5).
7. The high voltage circuit breaker fault simulation device of claim 6, characterized in that an oil outlet valve (1031) is installed at one side of the adjustable buffer (103).
8. The high-voltage circuit breaker fault simulation device according to claim 1, wherein the spring adjusting device (5) comprises an upper adjusting plate (51), a screw rod (52) and a lower adjusting plate (53), the screw rod (53) comprises two screw rods, the two screw rods are respectively and symmetrically installed on two sides of the lower end surface of the upper adjusting plate (52), one end of each screw rod (53) is abutted to the lower end surface of the upper adjusting plate, the other end of each screw rod penetrates through the lower adjusting plate (53), and a switching-closing spring (102) is fixedly installed on the upper end surface of the upper adjusting plate.
9. The high voltage circuit breaker fault simulation device of claim 8, wherein the lower adjustment plate (53) is provided with a through hole (531), and the screw (53) penetrates through the lower adjustment plate (53) through the through hole (531).
10. A method for simulating a fault of a high-voltage circuit breaker, which is based on the simulation device of any one of claims 1 to 9, and comprises the following steps:
starting the high-voltage circuit breaker, and operating the operating mechanism (10) to work;
the performance testing component (2) detects and records the speed, the stress condition and the deformation condition of the operating mechanism (10);
the damping device (4) applies resistance to simulate jamming, detects the jamming of the operating mechanism (10) and records the jamming;
adjusting the spring adjusting device (5) so as to detect the fatigue resistance of the opening and closing spring (102) and record the fatigue resistance;
and closing the performance testing assembly (2), the damping device (4) and the spring adjusting device (5), and shutting down the high-voltage circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010279999.3A CN111397879A (en) | 2020-04-10 | 2020-04-10 | High-voltage circuit breaker fault simulation device and simulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010279999.3A CN111397879A (en) | 2020-04-10 | 2020-04-10 | High-voltage circuit breaker fault simulation device and simulation method |
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| Publication Number | Publication Date |
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| CN111397879A true CN111397879A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010279999.3A Pending CN111397879A (en) | 2020-04-10 | 2020-04-10 | High-voltage circuit breaker fault simulation device and simulation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659776A (en) * | 2022-03-31 | 2022-06-24 | 国网陕西省电力有限公司电力科学研究院 | Load simulation platform for spring mechanism defect test and operation method thereof |
-
2020
- 2020-04-10 CN CN202010279999.3A patent/CN111397879A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659776A (en) * | 2022-03-31 | 2022-06-24 | 国网陕西省电力有限公司电力科学研究院 | Load simulation platform for spring mechanism defect test and operation method thereof |
| CN114659776B (en) * | 2022-03-31 | 2023-10-13 | 国网陕西省电力有限公司电力科学研究院 | Load simulation platform for spring mechanism defect test and operation method thereof |
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