CN213067489U - On-line monitoring device for mechanical characteristics of circuit breaker - Google Patents
On-line monitoring device for mechanical characteristics of circuit breaker Download PDFInfo
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- CN213067489U CN213067489U CN202022339290.6U CN202022339290U CN213067489U CN 213067489 U CN213067489 U CN 213067489U CN 202022339290 U CN202022339290 U CN 202022339290U CN 213067489 U CN213067489 U CN 213067489U
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Abstract
The utility model discloses an on-line monitoring device for mechanical characteristics of a circuit breaker, which comprises a circuit breaker handcart, a contact, an auxiliary contact, a main shaft, an angle sensor, a signal processing and converting unit, a controller and a display unit; the main shaft is used for being driven to rotate so as to drive the circuit breaker handcart to move, and further drive the contact and the auxiliary contact to move to switch on respectively; the angle sensor is used for acquiring a rotation angle signal of the main shaft; the signal processing and converting unit is suitable for processing the rotation angle signal, converting the rotation angle signal into an angle digital signal and then sending the angle digital signal to the controller; the controller is suitable for obtaining displacement information of a contact on the circuit breaker handcart according to the received angle digital signal and the thread pitch of the main shaft; the display unit is suitable for receiving the displacement information of the contact transmitted by the controller and displaying the displacement information correspondingly. The utility model discloses can monitor and trail the position of contact, and then can monitor the combined floodgate process, can in time handle mechanical failure.
Description
Technical Field
The utility model relates to a circuit breaker mechanical characteristic on-line monitoring device.
Background
At present, most of circuit breaker handcarts used in a high-voltage switch cabinet adopt modular structural design, so that the anti-interference capacity of the circuit breakers can be improved, and the risk of cross short circuit is reduced. However, in the process that the circuit breaker handcart drives the contact to move to be switched on with the auxiliary contact, the position of the contact cannot be monitored and tracked, the switching-on process cannot be tracked, and the mechanical fault cannot be diagnosed and processed in time.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a circuit breaker mechanical properties on-line monitoring device, it can monitor and trail the position of contact, and then can monitor the combined floodgate process, can in time handle mechanical failure.
In order to solve the technical problem, the technical scheme of the utility model is that: a circuit breaker mechanical characteristic on-line monitoring device comprises a circuit breaker handcart, a contact, an auxiliary contact, a main shaft, an angle sensor, a signal processing and converting unit, a controller and a display unit; wherein,
the contact and the auxiliary contact are both connected to the circuit breaker handcart;
the main shaft is in threaded connection with the circuit breaker handcart and is used for being driven to rotate so as to drive the circuit breaker handcart to move, and further drive the contact and the auxiliary contact to move to switch on respectively;
the angle sensor is connected to the main shaft and used for collecting a rotation angle signal of the main shaft;
the signal input end of the signal processing and converting unit is connected with the angle sensor, the signal output end of the signal processing and converting unit is connected with the controller, and the signal processing and converting unit is suitable for processing a rotation angle signal transmitted by the angle sensor, converting the rotation angle signal into an angle digital signal and then transmitting the angle digital signal to the controller;
the controller is suitable for obtaining displacement information of a contact on the circuit breaker handcart according to the received angle digital signal and the thread pitch of the main shaft;
the display unit is connected with the controller and is suitable for receiving the displacement information of the contact transmitted by the controller and displaying the displacement information correspondingly.
Further, in order to obtain a stroke curve of the contact, the circuit breaker mechanical characteristic online monitoring device also comprises a Hall current sensor; wherein,
the Hall current sensor is suitable for generating a starting signal at the moment when the circuit breaker handcart is electrified to work;
the auxiliary contact is suitable for generating a contact signal at the switching-on moment of the auxiliary contact;
the signal input end of the controller is respectively connected with the Hall current sensor and the auxiliary contact, the controller is suitable for setting the time of receiving the starting signal as starting time, setting the time of receiving the contact signal as stopping time, and obtaining the travel curve of the contact between the starting time and the stopping time according to the starting time, the stopping time and the displacement information of the contact.
Furthermore, the on-line monitoring device for the mechanical characteristics of the circuit breaker also comprises a displacement sensor; wherein,
the displacement sensor is suitable for acquiring a displacement signal of the circuit breaker handcart;
and the input end of the controller is connected with the displacement sensor and is used for receiving a displacement signal of the circuit breaker handcart transmitted by the displacement sensor.
Further, the controller is a single chip microcomputer.
Further provides a specific structure of the signal processing conversion unit, wherein the signal processing conversion unit comprises a signal processing unit and an A/D conversion module; wherein,
the input end of the signal processing unit is connected with the angle sensor, the output end of the signal processing unit is connected with the input end of the A/D conversion module, and the signal processing unit is used for processing the rotation angle signal acquired by the angle sensor and then sending the rotation angle signal to the A/D conversion module;
the output end of the A/D conversion module is connected with the controller, and the A/D conversion module is suitable for converting the processed rotation angle signal into an angle digital signal and sending the angle digital signal to the controller.
Further in order to communicate with the outside, the on-line monitoring device for the mechanical characteristics of the circuit breaker further comprises a communication unit; wherein,
the controller is connected with the communication unit and is used for controlling the communication unit to send the angle digital signal outwards and receive an external instruction.
Further, in order to input parameters into the controller, the online monitoring device for the mechanical characteristics of the circuit breaker further comprises a key input unit which is connected with the controller and used for inputting the parameters into the controller.
Further, in order to upload information to a server for storage, the on-line monitoring device for the mechanical characteristics of the circuit breaker further comprises a switch and the server; wherein,
the controller is connected with the switch;
the exchanger is connected with the server and used for uploading the angle digital signals sent by the controller to the server.
Further, in order to alarm the abnormal condition, the on-line monitoring device for the mechanical characteristics of the circuit breaker further comprises an alarm unit which is connected with the controller and used for giving an alarm under the control of the controller.
After the technical scheme is adopted, the angle sensor is connected to the main shaft and collects a rotation angle signal of the main shaft; the signal processing unit processes the rotation angle signal acquired by the angle sensor and then sends the rotation angle signal to the A/D conversion module; and the A/D conversion module converts the processed rotation angle signal into an angle digital signal and sends the angle digital signal to the controller. The controller obtains displacement information of a contact on the circuit breaker handcart according to the received angle digital signal and the thread pitch of the main shaft; and the display unit is connected with the controller, receives the displacement information of the contact transmitted by the controller and displays the displacement information correspondingly. Wherein, the main shaft with circuit breaker handcart threaded connection, the main shaft can drive during rotatory the circuit breaker handcart removes, and then drives the contact removal on the circuit breaker handcart, consequently according to the rotatory angle of main shaft with the pitch of main shaft can obtain the displacement information of circuit breaker handcart, the contact is connected on the circuit breaker handcart, and then can be according to the displacement information acquisition of circuit breaker handcart the displacement information of contact, so that it is right the position of contact carries out real-time supervision and trails to can in time handle mechanical fault when dividing, closing a floodgate in-process mechanical fault appears. And the displacement information of the contact is obtained through the rotation angle calculation of the main shaft, the measurement precision of the contact position monitoring can be improved, and the angle sensor is convenient to install.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker handcart of the present invention;
fig. 2 is a schematic structural view of the bottom of the circuit breaker handcart of the present invention;
fig. 3 is the structure schematic diagram of the circuit breaker mechanical characteristic on-line monitoring device of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 to 3, an on-line monitoring device for mechanical characteristics of a circuit breaker comprises a circuit breaker handcart 1, a contact 2, an auxiliary contact 3, a main shaft 4, an angle sensor 5, a signal processing and converting unit 6, a controller 7 and a display unit 8; wherein,
the contact 2 and the auxiliary contact 3 are both connected to the circuit breaker handcart 1;
the main shaft 4 is in threaded connection with the circuit breaker handcart 1, and the main shaft 4 is driven to rotate so as to drive the circuit breaker handcart 1 to move, and further drive the contact 2 and the auxiliary contact 3 to move to switch on respectively; in the embodiment, the circuit breaker handcart 1 is slidably connected in a high-voltage switch cabinet, and the main shaft 4 is rotatably connected in the high-voltage switch cabinet;
the angle sensor 5 is connected to the main shaft 4 and is used for acquiring a rotation angle signal of the main shaft 4;
the signal input end of the signal processing and converting unit 6 is connected with the angle sensor 5, the signal output end of the signal processing and converting unit 6 is connected with the controller 7, and the signal processing and converting unit 6 is suitable for processing the rotation angle signal transmitted by the angle sensor 5, converting the rotation angle signal into an angle digital signal and then transmitting the angle digital signal to the controller 7;
the controller 7 is suitable for obtaining displacement information of the contact 2 on the circuit breaker handcart 1 according to the received angle digital signal and the thread pitch of the main shaft 4;
the display unit 8 is connected with the controller 7 and is suitable for receiving and correspondingly displaying the displacement information of the contact 2 transmitted by the controller 7; specifically, main shaft 4 with 1 threaded connection of circuit breaker handcart, main shaft 4 can drive during rotatory circuit breaker handcart 1 removes, according to 4 rotatory angles of main shaft with the pitch of main shaft 4 can obtain the displacement information of circuit breaker handcart 1, contact 2 is connected on the circuit breaker handcart 1, and then can be according to the displacement information acquisition of circuit breaker handcart 1 the displacement information of contact 2, so that it is right the position of contact 2 carries out real-time supervision and trails to can in time handle mechanical failure when dividing, closing a floodgate in-process mechanical failure. Further specifically, the displacement information of the contact 2 is obtained through calculation of the rotation angle information of the spindle 4, the measurement precision of the position monitoring of the contact 2 can be improved, the angle sensor 5 is convenient to install, and the device further has the advantages of being simple and small in structure, low in cost and wide in application value.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of the circuit breaker may further include a hall current sensor 9; wherein,
the Hall current sensor 9 is suitable for generating a starting signal at the moment when the circuit breaker handcart 1 is electrified to work;
the auxiliary contact 3 is adapted to generate a contact signal at the moment of its closing;
the signal input end of the controller 7 is respectively connected with the Hall current sensor 9 and the auxiliary contact 3, the controller 7 is suitable for setting the time of receiving the starting signal as the starting time, setting the time of receiving the contact signal as the stopping time, and obtaining the travel curve of the contact 2 between the starting time and the stopping time according to the starting time, the stopping time and the displacement information of the contact 2. Specifically, when the circuit breaker handcart 1 is electrified to work, a magnetic field is generated, and the hall current sensor 9 is used for generating a starting signal after sensing the magnetic field; the starting and stopping moments of the circuit breaker during opening and closing are accurately mastered by determining the starting time and the stopping time, so that the displacement information of the contact 2 is monitored in an accurate time period.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of circuit breaker may further include a displacement sensor 10; wherein,
the displacement sensor 10 is suitable for acquiring a displacement signal of the circuit breaker handcart 1;
the input end of the controller 7 is connected with the displacement sensor 10 and is used for receiving a displacement signal of the circuit breaker handcart 1 transmitted by the displacement sensor 10; specifically, the position of the contact 2 is tracked by two means, so that errors in the collected displacement information of the contact 2 are prevented.
In this embodiment, the controller 7 may be a single chip microcomputer, and the single chip microcomputer may implement the related functions in this embodiment according to the existing program.
As shown in fig. 3, the signal processing conversion unit 6 may include a signal processing unit 11 and an a/D conversion module 12; wherein,
the input end of the signal processing unit 11 is connected to the angle sensor 5, the output end of the signal processing unit 11 is connected to the input end of the a/D conversion module 12, and the signal processing unit 11 is configured to process the rotation angle signal acquired by the angle sensor 5 and then send the rotation angle signal to the a/D conversion module 12;
the output end of the a/D conversion module 12 is connected to the controller 7, and the a/D conversion module 12 is adapted to convert the processed rotation angle signal into an angle digital signal and send the angle digital signal to the controller 7; specifically, the signal processing unit 11 may include a signal processor, and the signal processor is configured to convert, screen and process the rotation angle signal.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of a circuit breaker may further include a communication unit 13; wherein,
the controller 7 is connected with the communication unit 13 and is used for controlling the communication unit 13 to send the angle digital signal outwards and receive an external instruction.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of circuit breaker may further include a key input unit 14 connected to the controller 7 for inputting parameters into the controller 7.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of circuit breaker may further include a switch 15 and a server 16; wherein,
the controller 7 is connected with the switch 15;
the switch 15 is connected to the server 16 and is configured to upload the angle digital signal sent by the controller 7 to the server 16.
As shown in fig. 3, the on-line monitoring device for mechanical characteristics of circuit breaker may further include an alarm unit 17 connected to the controller 7 and configured to give an alarm under the control of the controller 7.
The working principle of the utility model is as follows:
the angle sensor 5 is connected to the main shaft 4 and collects a rotation angle signal of the main shaft 4; the signal processing unit 11 processes the rotation angle signal acquired by the angle sensor 5 and sends the processed rotation angle signal to the a/D conversion module 12; the a/D conversion module 12 converts the processed rotation angle signal into an angle digital signal and sends the angle digital signal to the controller 7. The controller 7 obtains displacement information of the contact 2 on the circuit breaker handcart 1 according to the received angle digital signal and the thread pitch of the main shaft 4; the display unit 8 is connected with the controller 7, receives the displacement information of the contact 2 transmitted by the controller 7 and displays the displacement information correspondingly. Wherein, main shaft 4 with 1 threaded connection of circuit breaker handcart, main shaft 4 can drive during rotation circuit breaker handcart 1 removes, and then drives the 2 removals of contact on the circuit breaker handcart 1, consequently according to the rotatory angle of main shaft 4 with the pitch of main shaft 4 can obtain the displacement information of circuit breaker handcart 1, contact 2 is connected on the circuit breaker handcart 1, and then can be according to the displacement information acquisition of circuit breaker handcart 1 the displacement information of contact 2, so that it is right the position of contact 2 carries out real-time supervision and trails to can in time handle mechanical failure when dividing, switching-on in-process mechanical failure. And the displacement information of the contact 2 is obtained through the calculation of the rotation angle of the main shaft 4, so that the measurement precision of the position monitoring of the contact 2 can be improved, and the angle sensor 5 is convenient to install.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (9)
1. The on-line monitoring device for the mechanical characteristics of the circuit breaker is characterized by comprising a circuit breaker handcart (1), a contact (2), an auxiliary contact (3), a main shaft (4), an angle sensor (5), a signal processing and converting unit (6), a controller (7) and a display unit (8); wherein,
the contact (2) and the auxiliary contact (3) are both connected to the circuit breaker handcart (1);
the main shaft (4) is in threaded connection with the circuit breaker handcart (1), and the main shaft (4) is driven to rotate so as to drive the circuit breaker handcart (1) to move and further drive the contact (2) and the auxiliary contact (3) to move to switch on respectively;
the angle sensor (5) is connected to the main shaft (4) and is used for acquiring a rotation angle signal of the main shaft (4);
the signal input end of the signal processing and converting unit (6) is connected with the angle sensor (5), the signal output end of the signal processing and converting unit (6) is connected with the controller (7), and the signal processing and converting unit (6) is suitable for processing a rotation angle signal transmitted by the angle sensor (5), converting the rotation angle signal into an angle digital signal and then transmitting the angle digital signal to the controller (7);
the controller (7) is suitable for obtaining displacement information of the contact (2) on the circuit breaker handcart (1) according to the received angle digital signal and the thread pitch of the main shaft (4);
the display unit (8) is connected with the controller (7) and is suitable for receiving the displacement information of the contact (2) transmitted by the controller (7) and displaying the displacement information correspondingly.
2. The on-line monitoring device of the mechanical characteristics of circuit breakers according to claim 1, characterized in that it further comprises a hall current sensor (9); wherein,
the Hall current sensor (9) is suitable for generating a starting signal at the moment when the circuit breaker handcart (1) is electrified to work;
the auxiliary contact (3) is suitable for generating a contact signal at the switching-on moment of the auxiliary contact;
the signal input end of the controller (7) is respectively connected with the Hall current sensor (9) and the auxiliary contact (3), the controller (7) is suitable for setting the time of receiving the starting signal as starting time, setting the time of receiving the contact signal as stopping time, and obtaining a travel curve of the contact (2) between the starting time and the stopping time according to the starting time, the stopping time and the displacement information of the contact (2).
3. On-line monitoring device of the mechanical characteristics of circuit breakers according to claim 2, characterized in that it further comprises a displacement sensor (10); wherein,
the displacement sensor (10) is suitable for acquiring a displacement signal of the circuit breaker handcart (1);
the input end of the controller (7) is connected with the displacement sensor (10) and is used for receiving a displacement signal of the circuit breaker handcart (1) transmitted by the displacement sensor (10).
4. The on-line monitoring device of the mechanical characteristics of the circuit breaker according to claim 1, characterized in that said controller (7) is a single-chip microcomputer.
5. The on-line monitoring device of mechanical characteristics of circuit breakers according to claim 1, characterized in that said signal processing and conversion unit (6) comprises a signal processing unit (11) and an a/D conversion module (12); wherein,
the input end of the signal processing unit (11) is connected with the angle sensor (5), the output end of the signal processing unit (11) is connected with the input end of the A/D conversion module (12), and the signal processing unit (11) is used for processing the rotation angle signal acquired by the angle sensor (5) and then sending the rotation angle signal to the A/D conversion module (12);
the output end of the A/D conversion module (12) is connected with the controller (7), and the A/D conversion module (12) is suitable for converting the processed rotation angle signal into an angle digital signal and sending the angle digital signal to the controller (7).
6. The on-line monitoring device of the mechanical characteristics of circuit breakers according to claim 1, characterized in that it further comprises a communication unit (13); wherein,
the controller (7) is connected with the communication unit (13) and is used for controlling the communication unit (13) to send the angle digital signal outwards and receive an external instruction.
7. The on-line monitoring device of the mechanical characteristics of circuit breakers according to claim 1, characterized in that it further comprises a key input unit (14) connected to said controller (7) and adapted to input parameters into said controller (7).
8. The on-line monitoring device of the mechanical characteristics of circuit breakers according to claim 1, characterized in that it further comprises a switch (15) and a server (16); wherein,
the controller (7) is connected with the switch (15);
the switch (15) is connected with the server (16) and is used for uploading the angle digital signals sent by the controller (7) to the server (16).
9. On-line monitoring device of the mechanical characteristics of circuit breakers according to claim 1, characterized in that it further comprises an alarm unit (17) connected to said controller (7) and adapted to give an alarm under the control of said controller (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022339290.6U CN213067489U (en) | 2020-10-20 | 2020-10-20 | On-line monitoring device for mechanical characteristics of circuit breaker |
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| CN202022339290.6U CN213067489U (en) | 2020-10-20 | 2020-10-20 | On-line monitoring device for mechanical characteristics of circuit breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252765A (en) * | 2021-12-14 | 2022-03-29 | 广西电网有限责任公司桂林供电局 | SF based on switching-on pre-breakdown6Method for evaluating ablation state of breaker contact |
| CN115950490A (en) * | 2023-03-14 | 2023-04-11 | 合肥开关厂有限公司 | Vacuum circuit breaker mechanical characteristic on-line monitoring device |
-
2020
- 2020-10-20 CN CN202022339290.6U patent/CN213067489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252765A (en) * | 2021-12-14 | 2022-03-29 | 广西电网有限责任公司桂林供电局 | SF based on switching-on pre-breakdown6Method for evaluating ablation state of breaker contact |
| CN115950490A (en) * | 2023-03-14 | 2023-04-11 | 合肥开关厂有限公司 | Vacuum circuit breaker mechanical characteristic on-line monitoring device |
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