CN112414261B - Displacement sensor for power grid data - Google Patents
Displacement sensor for power grid data Download PDFInfo
- Publication number
- CN112414261B CN112414261B CN202110092801.5A CN202110092801A CN112414261B CN 112414261 B CN112414261 B CN 112414261B CN 202110092801 A CN202110092801 A CN 202110092801A CN 112414261 B CN112414261 B CN 112414261B
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- Prior art keywords
- horizontal
- circuit breaker
- measurer
- displacement sensor
- measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
A displacement sensor for grid data, comprising: the device comprises a circuit breaker, a base, a displacement conversion device and a displacement sensor; the base is arranged on the circuit breaker, a pull rod is arranged in the base, and the interior of the pull rod is electrically connected with the circuit breaker; the displacement conversion apparatus includes: a vertical measurer, a horizontal moving rod, a horizontal measurer and a measuring scale; one end of the vertical measurer is connected with one end of the horizontal moving rod through a first rotating shaft, the other end of the horizontal moving rod is connected with one end of the horizontal measurer through a second rotating shaft, the measuring scale is L-shaped, a measuring wheel is arranged at one end of the measuring scale, the measuring wheel is arranged on the horizontal measurer, a supporting rod is arranged at the other end of the measuring scale, and the end part of the supporting rod is sleeved on the circuit breaker; the displacement sensor is arranged inside the level measurer.
Description
Technical Field
The invention relates to a displacement sensor, in particular to a displacement sensor for power grid data.
Background
In an electric power system, field data not only include measurement data such as power, voltage, current and the like, but also include event data generated by operations such as opening and closing, overcurrent, quick disconnection and the like and accidents. When the trip is caused by an accident, the fault recording data of the site is also recorded, and the data volume needing to be communicated is incomparable with that in the common industrial control. Because the field data of the power system changes very fast, one-time overcurrent can only be maintained for tens of milliseconds, and the data is vanished slightly, the requirements on the real-time performance and the communication speed of the data are very high.
In the circuit system, the circuit breaker opens and closes the circuit through the contact switching, because the displacement curve of contact can reflect mechanical characteristics such as the divide-shut brake speed of circuit breaker, overtravel, consequently, the displacement curve of control moving contact can draw the mechanical characteristics of circuit breaker, when circuit breaker stop work, the motion formation of the inside moving contact of circuit breaker is detected in the action of control circuit breaker divide-shut brake, wherein the moving contact includes contact body, and the pull rod of the drive contact reciprocating motion who is connected with contact body.
Because the size of the circuit breaker is continuously reduced, the internal space of the circuit breaker is also reduced, the arrangement of the sensor in the device is not easy to realize, and the assembly arranged with the sensor cannot hinder the normal work of the contact or the contact pull rod.
Disclosure of Invention
Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a circuit breaker that converts a contact displacement inside the circuit breaker into a displacement distance of a measuring device, and measures the converted displacement to measure the displacement distance of the contact, and a method for measuring the displacement distance of the contact.
A displacement sensor for grid data, comprising: the device comprises a circuit breaker, a base, a displacement conversion device and a displacement sensor;
the base is arranged on the circuit breaker, a pull rod is arranged in the base, the interior of the pull rod is electrically connected with the circuit breaker, and the pull rod is triggered to stretch by current on the circuit breaker;
the displacement conversion apparatus includes: a vertical measurer, a horizontal moving rod, a horizontal measurer, a measuring scale and a sleeve;
one end of the vertical measurer is connected with one end of the horizontal moving rod through a first rotating shaft, the other end of the horizontal moving rod is connected with one end of the horizontal measurer through a second rotating shaft, the measuring scale is L-shaped, a measuring wheel is arranged at one end of the measuring scale, the measuring wheel is arranged on the horizontal measurer, a supporting rod is arranged at the other end of the measuring scale, and the end part of the supporting rod is sleeved on the circuit breaker;
the sleeve is arranged on the wall surface of the circuit breaker and supports the displacement conversion device;
the displacement sensor is arranged in the horizontal measurer and is kept in a horizontal state with the horizontal moving rod.
The current that senses the circuit breaker when the pull rod triggers the pull rod and stretches upward, then drives vertical measurement ware horizontal migration to drive horizontal measurement ware horizontal migration, displacement sensor senses the displacement change of dipperstick, converts out the length that stretches upward on the pull rod through vertical measurement ware and horizontal measurement ware's contained angle.
Has the advantages that:
according to the invention, the contact displacement in the breaker is converted into the relative horizontal displacement between the external measurement slope and the measurement wheel through the measurement device, so that the problems that the breaker is small in internal size and a sensor is not easy to arrange in the breaker are solved, and the breaker is suitable for different types of breakers.
According to the invention, the vertical movement of the displacement of the contact is converted into the horizontal movement through the relative movement of the contact and the inclined slope surface with light weight and small friction resistance, and the influence of the measuring tool on the working of the contact can be reduced to the minimum extent by the measuring tool with small friction and light weight.
Drawings
Fig. 1 is a schematic structural diagram of a displacement sensor according to the present invention.
Fig. 2 is a schematic diagram of a specific structure of the measurement of the present invention.
As shown in FIGS. 1-2: the device comprises a 1-breaker, a 2-base, a 3-displacement conversion device, a 4-displacement sensor, a 21-pull rod, a 22-contact, a 31-vertical measurer, a 32-horizontal moving rod, a 33-horizontal measurer, a 34-measuring scale, a 35-sleeve, a 321-rotating shaft I, a 322-rotating shaft II, a 341-measuring wheel and a 342-supporting rod.
Detailed Description
The present invention is further illustrated in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from the description herein, and it will be readily appreciated by those skilled in the art that the present invention can be embodied in many different forms without departing from the spirit and scope of the invention.
As shown in fig. 1-2, a displacement sensor for grid data comprises: the circuit breaker comprises a circuit breaker 1, a base 2, a displacement conversion device 3 and a displacement sensor 4;
the circuit breaker 1 is a device for cutting off and connecting a circuit, and can prevent the accident from being enlarged due to short circuit, overload and other reasons when the accident happens, the base 2 is arranged on the circuit breaker 1, the pull rod 21 is arranged in the base 2, the top of the pull rod 21 is provided with a contact, when the short circuit or overload state happens, the pull rod 21 arranged in the base 2 can lift the pull rod 21 upwards through a current trigger spring or a circuit, so as to protect the circuit, the contact 22 is arranged on the pull rod 21 and can open and close the circuit through vertical upward movement;
the displacement conversion device 3 includes: a vertical measuring device 31, a horizontal moving rod 32, a horizontal measuring device 33, a measuring ruler 34 and a sleeve 35;
one end of the vertical measuring device 31 is connected with one end of the horizontal moving rod 32 by a shaft and can be fixed after rotating, a certain angle is kept, the other end of the horizontal moving rod 32 is connected with one end of the horizontal measuring device 33 by a shaft and can be rotated to adjust the angle, a certain angle can be kept and fixed after adjusting, preferably, the two shafts are enabled to be identical in rotating angle through chain transmission or belt transmission (the belt transmission and the chain transmission are common known technologies and are not shown in the figure), the angle can be adjusted independently, the first rotating shaft 321 is arranged between the vertical measuring device 31 and the horizontal moving rod 32, the second rotating shaft 322 is arranged between the horizontal moving rod 32 and the horizontal measuring device 33, locking devices (not shown in the figure) are arranged on the first rotating shaft 321 and the second rotating shaft 322, the measuring scale 34 is in an L shape, the measuring wheel 341 is arranged at the short end and used for rolling on the horizontal measurer 33 so as to measure the horizontal moving distance of the measuring wheel 341, the support rod 342 is arranged at the long end, the end part of the support rod is sleeved on the circuit breaker 1 through a chute or a roller, the measuring scale 34 can vertically move on the wall surface of the circuit breaker 1 and can not fall off, and the support rod 342 is a component which is in direct contact with the circuit breaker 1 and can vertically slide on the outer wall of the circuit breaker 1;
the sleeve 35 is arranged on the wall surface of the circuit breaker 1 and used for supporting the displacement conversion device 3 to keep a horizontal state so as to move in the horizontal direction;
the displacement sensor 4 is arranged inside the horizontal measuring device 33, keeps a horizontal state with the horizontal moving rod 32, and can measure the horizontal distance of the measuring wheel 341 moving in the horizontal measuring device 33, for convenience of calculation, one surface of the vertical measuring device 31 contacted with the contact 22 and one surface of the horizontal measuring device 33 contacted with the measuring wheel 341 can be set to 90 degrees, and the included angle between the two surfaces is set to 90 degrees (the angle difference is ensured to be 90 degrees by adjusting the angle), namely the moving distance of the contact 22 in the vertical direction inside the breaker 1 can be converted into the moving distance of the measuring wheel 341 in the horizontal direction;
by adjusting the angles of the horizontal measurer 33 and the vertical measurer 31 with respect to the horizontal and vertical directions, circuit breakers of different models and sizes and different space environments can be accommodated.
The working principle of the invention is as follows:
firstly, the vertical measuring device 31 is adjusted to a proper angle and fixed, the horizontal measuring device 33 and the vertical measuring device 31 are fixed by keeping a 90-degree difference, the horizontal moving rod 32 is fixed in the vertical direction through the sleeve 35, the vertical movement of the horizontal moving rod 32 is prevented and is kept stable on a horizontal plane, when the breaker 1 is in short circuit or overload, the contact 22 is pulled by the pull rod 21 to move upwards, the contact 22 pushes the vertical measuring device 31 to move towards the right side, the displacement conversion device 3 is light as a whole and does not influence the action of the contact 22, the vertical measuring device 31 is pushed to the right through the action of the contact 22 moving upwards, the horizontal measuring device 33 also moves towards the right, the measuring scale 34 moves downwards along the slope of the horizontal measuring device 33, the measuring scale 34 does not move in the horizontal direction, and the horizontal measuring device 33 and the measuring scale 34 move relatively, the horizontal relative movement distance of the section is the horizontal distance of the measuring wheel 341 moving on the horizontal measurer 33, the movement distance of the upper measuring wheel 341 is measured by the displacement sensor 4, and the obtained data is the distance of the contact moving upward.
Claims (3)
1. A displacement sensor for grid data, comprising: the circuit breaker comprises a circuit breaker (1), a base (2), a displacement conversion device (3) and a displacement sensor (4);
the method is characterized in that:
the base (2) is arranged on the circuit breaker (1), a pull rod (21) is arranged in the base (2), the interior of the pull rod (21) is electrically connected with the circuit breaker (1), and a contact is arranged at the top of the pull rod (21);
the displacement conversion device (3) comprises: a vertical measuring device (31), a horizontal moving rod (32), a horizontal measuring device (33), a measuring scale (34) and a sleeve (35);
one end of the vertical measurer (31) is connected with one end of the horizontal moving rod (32) through a first rotating shaft (321), the other end of the horizontal moving rod (32) is connected with one end of the horizontal measurer (33) through a second rotating shaft (322), locking devices are arranged on the first rotating shaft (321) and the second rotating shaft (322), the measuring scale (34) is L-shaped, a measuring wheel (341) is arranged at one end of the measuring scale, the measuring wheel (341) is arranged on the horizontal measurer (33), a supporting rod (342) is arranged at the other end of the measuring scale (34), and the end of the supporting rod (342) is sleeved on the circuit breaker (1) through a sliding chute or a roller;
the sleeve (35) is arranged on the wall surface of the circuit breaker (1) and supports the displacement conversion device (3);
the displacement sensor (4) is disposed inside the level measuring device (33) and is kept in a horizontal state with the horizontal moving rod (32).
2. A grid data displacement sensor according to claim 1, wherein: the first rotating shaft (321) is connected with the second rotating shaft (322) through a transmission belt.
3. A grid data displacement sensor according to claim 1, wherein: and the included angle between the vertical measurer (31) and the horizontal measurer (33) is 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092801.5A CN112414261B (en) | 2021-01-25 | 2021-01-25 | Displacement sensor for power grid data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092801.5A CN112414261B (en) | 2021-01-25 | 2021-01-25 | Displacement sensor for power grid data |
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| Publication Number | Publication Date |
|---|---|
| CN112414261A CN112414261A (en) | 2021-02-26 |
| CN112414261B true CN112414261B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110092801.5A Active CN112414261B (en) | 2021-01-25 | 2021-01-25 | Displacement sensor for power grid data |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113267107B (en) * | 2021-05-25 | 2023-08-18 | 安徽得润电气技术有限公司 | Circuit breaker displacement sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4760311B2 (en) * | 2005-11-07 | 2011-08-31 | 富士電機機器制御株式会社 | Circuit breaker |
| CN101493502A (en) * | 2008-12-16 | 2009-07-29 | 天津市百利电气有限公司 | Plastic case breaker over-travel test tool and using method |
| CN103267502A (en) * | 2013-05-23 | 2013-08-28 | 国家电网公司 | Portable breaker contactor travel recorder and method based on DSP |
| CN204303673U (en) * | 2014-12-24 | 2015-04-29 | 常熟开关制造有限公司(原常熟开关厂） | A kind of vacuum circuit breaker |
| CN108981535B (en) * | 2017-05-31 | 2020-11-24 | 天津平高智能电气有限公司 | Contact displacement measuring method and measuring device thereof |
| CN109115144A (en) * | 2017-06-23 | 2019-01-01 | 河南平芝高压开关有限公司 | A kind of breaker and its contact travel measuring device |
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Effective date of registration: 20210927 Address after: 215000 Huangqiao Street East Street, Xiangcheng District, Suzhou City, Jiangsu Province Applicant after: Suzhou dongtinghe Intelligent Technology Development Co., Ltd Address before: 210019 70-79, Shaohua workshop comprehensive business district, 1 / F, 89 Pingliang street, Jianye District, Nanjing City, Jiangsu Province Applicant before: Nanjing feimeisi Intelligent Technology Co.,Ltd. |
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