CN210036589U - Transmission line splicing sleeve deformation on-line monitoring device - Google Patents
Transmission line splicing sleeve deformation on-line monitoring device Download PDFInfo
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- CN210036589U CN210036589U CN201920754276.7U CN201920754276U CN210036589U CN 210036589 U CN210036589 U CN 210036589U CN 201920754276 U CN201920754276 U CN 201920754276U CN 210036589 U CN210036589 U CN 210036589U
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- shell
- splicing sleeve
- power transmission
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- capacitor
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000012806 monitoring device Methods 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 15
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 52
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000013521 mastic Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a transmission conductor is continuous tubular and becomes on-line monitoring device, including the shell, the inside cavity of shell, the splicing sleeve is located the inside of shell, and the splicing sleeve surface scribbles insulating material, offers the hole that is used for transmission conductor to pass on the relative both sides face of shell, and transmission conductor passes the hole is fixed the shell on transmission conductor, and the shell inner wall is provided with condenser polar plate, main circuit board, mutual inductance and gets ability sensor and lithium cell, and main circuit board is connected to condenser polar plate wire, and main circuit board, main circuit wireless communication connection surveillance center are connected to the lithium cell. The utility model discloses a detection device realizes maintaining or changing the measure to the on-line monitoring of transmission line wire splicing sleeve, timely taking when splicing sleeve deformation reaches certain degree, solves the artifical defect significantly reduced who patrols the line of tradition and because of the accident that splicing sleeve deformation caused.
Description
Technical Field
The utility model belongs to the technical field of transmission line state monitoring facilities, concretely relates to transmission line connection tubular becomes on-line monitoring device.
Background
The splicing sleeve is used on an overhead power line, has the function of connecting a ground wire and is very important for the safe operation of a power transmission line. Because the splicing sleeve is exposed in the natural environment for a long time, the complex environment directly acts on the splicing sleeve, and the defects of the splicing sleeve manufacturing process are overcome, the stress on two ends of the splicing sleeve is uneven, and the splicing sleeve is easy to deform. In recent years, the deformation of the splicing sleeve occurs, and the splicing sleeve directly causes disconnection accidents in serious cases, seriously influences the safe operation of the power transmission line and seriously influences national economy.
At present, the monitoring of splicing sleeves at home and abroad still depends on the traditional manual line patrol, and the manual line patrol is time-consuming and labor-consuming. With the continuous construction of electric power in China, the transmission line inevitably passes through mountainous areas, hills and other areas with rare people. In these areas, it is very difficult to repair all splicing sleeves one by one, and the repair is usually known after the accident is enlarged. Therefore, if the real-time monitoring of the power transmission line splicing sleeve can be realized, the state information of the splicing sleeve can be timely acquired, and when the splicing sleeve deforms, maintenance measures can be timely taken to prevent the expansion of accidents, so that the method has important significance for the safe operation of the power transmission line.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a transmission line connection tubular becomes on-line monitoring device can realize the real-time supervision to transmission line connection pipe deformation, has solved the problem that artifical inspection wasted time and energy in the past, has important meaning to transmission line's safe operation.
The utility model provides a technical scheme be, a transmission conductor connection tube shape becomes on-line monitoring device, which comprises an outer shell, the inside cavity of shell, the splicing sleeve is located the inside of shell, the splicing sleeve surface scribbles insulating material, offer the hole that is used for transmission conductor to pass on the relative both sides face of shell, transmission conductor passes the hole and fixes the shell on transmission conductor, the shell inner wall is provided with the condenser polar plate, main circuit board, mutual inductance energy taking sensor and lithium cell, main circuit board is connected to condenser polar plate wire, main circuit board is connected to the lithium cell, main circuit wireless communication connects surveillance center.
The utility model is also characterized in that,
the capacitor plate comprises a capacitor lower plate arranged at the bottom of the inner wall of the shell and a capacitor upper plate arranged on the lower surface of the splicing sleeve, and the area and the length of the capacitor upper plate are both larger than those of the capacitor lower plate.
The main circuit board is fixedly connected to the bottom of the inner wall of the shell, the microprocessor is arranged in the main circuit board and is respectively connected with the power supply control module, the charge measuring module and the 4G communication module, the capacitor plate is connected with the input end of the charge side module, the power supply control module is connected with the mutual inductance energy-taking sensor and the lithium battery, and the 4G communication module is in communication connection with the monitoring center.
The mutual inductance energy-taking sensor is fixedly arranged on the power transmission lead and is positioned in the shell.
The outer surface of the shell is provided with a side cover, and the side cover and the shell are locked through a hinge and a lock catch.
The transmission conductor is connected with the shell and sealed by waterproof cement.
The shell is made of acrylic materials.
The beneficial effects of the utility model are that, a transmission line connection tubular becomes on-line monitoring device realizes the on-line monitoring to transmission line connection pipe, and timely taking is maintained or is changed the measure when connection pipe deformation reaches the certain degree, solves the defect significantly reduced of traditional artifical line inspection because of the accident that connection pipe deformation caused. Through the capacitor plate who installs on splicing sleeve and shell, when the splicing sleeve takes place deformation, the capacitor plate interval changes, and the pole plate interval after the capacitor plate takes place deformation is calculated through the electric charge amount of gathering on the capacitor plate, and the deformation condition of splicing sleeve is confirmed to the interval difference before and after the pole plate deformation.
Drawings
Fig. 1 is a schematic view of an internal structure of a power transmission conductor connecting tube-shaped transformer online monitoring device of the present invention;
fig. 2 is a schematic view of an external structure of a power transmission conductor connecting tube-shaped transformer on-line monitoring device of the present invention;
fig. 3 is a schematic view of a power transmission line connecting tube type transformer on-line monitoring device of the present invention; wherein, FIG. 3(a) is a schematic diagram of capacitor plates without deformation; FIG. 3(b) is a schematic diagram of a capacitor plate when deformed; fig. 3(c) is a schematic diagram of the coordinate system established on the capacitor plate when deformation occurs.
In the figure, 1 is a power transmission lead, 2 is a splicing sleeve, 3 is a monitoring center, 4 is a capacitor polar plate, 1-1 is a shell, 1-2 is a hinge, 1-3 is a lock catch, 1-4 is a side cover, 1-5 is a mutual inductance energy-taking sensor, 1-6 is a main circuit board, 1-7 is a lithium battery, 1-8 is a capacitor lower polar plate, 1-9 is a capacitor upper polar plate, 1-10 is a side face, 3-1 is a microprocessor, 3-2 is a power supply control module, 3-3 is a charge measurement module, and 3-4.4G communication modules.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a power transmission conductor splicing sleeve type transformer on-line monitoring device, as shown in figure 1 and figure 2, comprising a shell 1-1, the shell 1-1 is hollow, a splicing sleeve 2 is positioned in the shell 1-1, the surface of the splicing sleeve 2 is coated with insulating material, holes for the power transmission conductor 1 to pass through are arranged on two opposite side surfaces 1-10 of the shell 1-1, the power transmission conductor 1 passes through the holes to fix the shell 1-1 on the power transmission conductor 1, a capacitor polar plate 4 and a main circuit board 1-6 are arranged in the shell 1-1, the mutual inductance energy-taking sensor comprises 1-5 parts of a mutual inductance energy-taking sensor and 1-7 parts of a lithium battery, a capacitor plate 4 is connected with a main circuit board 1-6 through a lead, the lithium battery 1-7 is connected with the main circuit board 1-6, and the main circuit 1-6 is in wireless communication connection with a monitoring center 3.
The capacitor plate 4 comprises capacitor lower plates 1-8 arranged at the bottom of the inner wall of the shell 1 and capacitor upper plates 1-9 arranged on the lower surface of the splicing sleeve 2, the area and the length of the capacitor upper plates 1-9 are larger than those of the capacitor lower plates 1-8, and the opposite area of the capacitor plate 4 is ensured to be kept to be the area of the capacitor lower plates 1-8 when the splicing sleeve 2 deforms
The main circuit board 1-6 is fixedly connected to the bottom of the inner wall of the shell 1, the main circuit board 1-6 internally comprises a microprocessor 3-1, the microprocessor 3-1 is respectively connected with a power supply control module 3-2, a charge measuring module 3-3 and a 4G communication module 3-4, a capacitor polar plate 4 is connected with the input end of the charge side module 3-3, the charge measuring module 3-3 is used for measuring the charge amount of the capacitor polar plate 4 in real time and transmitting the measured value to the microprocessor 3-1 for processing in a USART communication mode; the power control module 3-2 is connected with the mutual inductance energy-obtaining sensor 1-5 and the lithium battery 1-7, the 4G communication module 3-4 is in communication connection with the monitoring center 3, on one hand, the power control module 3-2 is connected with the mutual inductance energy-obtaining sensor 1-5 to charge the lithium battery 1-7, and on the other hand, the lithium battery 1-7 is controlled to provide required voltages with different amplitudes for each module of the device.
The mutual inductance energy-taking sensor 1-5 is fixedly arranged on the power transmission lead and is positioned in the shell 1.
The outer surface of the shell 1-1 is provided with the side cover 1-4, the side cover 1-4 and the shell 1-1 are locked through the hinge 1-2 and the lock catch 1-3, when the device needs to be installed or maintained, the lock catch 1-3 is opened through a key, and the hinge 1-2 can drive the side cover 1-4 to be opened.
The transmission conductor 1 is connected with the shell 1-1 and sealed by waterproof daub, so that rainwater is prevented from infiltrating into the device and damaging equipment.
The shell 1-1 is made of acrylic materials.
The utility model discloses a transmission conductor continues tubular and becomes on-line monitoring device's theory of operation as follows: the capacitor plate 4 collects the capacitance value of the deformed splicing sleeve and transmits the capacitance value to the charge measuring module 3-2; when the splicing sleeve is not deformed, as shown in fig. 3a, according to the definition formula of the capacitor capacitance:
wherein C represents the capacitance value of the capacitor; epsilon is the relative dielectric constant of the electrolyte between two plates of the capacitor, and the dielectric constant of air is 1.00053C2/(N·m2) (ii) a S is the area of the positive plate, namely the area of the lower plate 1-8 of the capacitor, and is determined during the design of the device; pi is the circumference ratio, and 3.14 is adopted for constant calculation; k is an electrostatic constant having a value of 9.0X 109N·m2/C2(ii) a d is the distance between the two plates, which is determined during the design of the device;
when the splicing sleeve deforms, as shown in fig. 3b, because the area of the lower electrode plate 1-8 of the capacitor is smaller than the area of the upper electrode plate 1-9 of the capacitor in design, when the splicing sleeve deforms, namely the upper electrode plate 1-9 of the capacitor bends, the area opposite to the electrode plate is still the same as the area of the lower electrode plate 1-8 of the capacitor, and the distance between the electrode plates is changed. A coordinate system is established with one end of the lower plate as a standard origin, and as shown in fig. 3c, when the upper plate is deformed, the bending of the upper plate satisfies a curve y ═ f (x).
Namely:
recording:
wherein the content of the first and second substances,
represents the average distance of the capacitor plates;
then:
before and after the splicing sleeve is deformed, the capacitor only has the change of the distance between the polar plates, so the polar plate distance d under the normal condition and the average distance between the deformed polar plates can be utilized
By difference of (a), i.e. using
And quantifying the deformation degree of the splicing sleeve. In the actual monitoring process, the pole plate distance d when the splicing sleeve is not deformed is determined when the device is installed. But the average distance of the pole plates after the splicing sleeve is deformed
Difficult to measure directly, according to the calculation formula of capacitor capacitance:
wherein Q is the charge amount charged by the capacitor; u is a bipolar plate voltage supplied by the lithium batteries 1-7 and is constant. As can be seen from equation (5), when the voltage of the bipolar plate is not changed, the change of the capacitance will be caused, resulting in the change of the charge amount Q. The charge amount Q is easily measured in practice, and in recent years, various digital charge measuring instruments are continuously updated and the accuracy is continuously improved. Therefore, there are:
that is to say that the first and second electrodes,
then there is a change in the number of,
considering that a series of errors such as measurement can exist in the redesign of the device, a certain margin can be considered, the threshold value can be set to be 3mm, when delta d is larger than or equal to 3mm, the connection wire tube is determined to be deformed, the charge measuring module 3-3 receives the change of the charge quantity on the capacitor plate 4 and transmits the change to the microprocessor 3-1, the microprocessor 3-1 analyzes and processes data to obtain a plate spacing difference value, comparison is carried out according to the set threshold value, if the change exceeds the set threshold value range, an alarm signal is generated and transmitted to the monitoring center through the communication module 3-4, and the monitoring center monitors and sends maintenance personnel to take measures in time.
The utility model discloses a transmission conductor continues tubular and becomes on-line monitoring device's working process does: the capacitor upper electrode plates 1-9 are arranged on the capacitor of the splicing sleeve 2, when the splicing sleeve 2 deforms, the splicing sleeve also bends and deforms, the plate distance of the capacitor electrode plates 4 changes at the moment, so that the capacitance between the electrode plates changes, namely the electric charge amount on the surface of the electrode plates changes, the electric charge amount of the electrode plates at the moment is measured through the electric charge measuring module 3-3, the measured electric charge amount value is analyzed and processed through the microprocessor 3-1 to obtain the capacitance value at the moment, and the average distance of the electrode plates at the moment is calculated
And the distance variation delta d between the monitoring center and the board, judging whether the delta d exceeds a set threshold value or not, generating an alarm signal when the delta d exceeds the preset threshold value, packaging and summarizing the data, and sending the data to the monitoring center 3 through the 4G wireless communication module 3-4.
Claims (7)
1. A power transmission lead splicing sleeve type transformer on-line monitoring device is characterized by comprising a shell (1-1), wherein the shell (1-1) is hollow, a splicing sleeve (2) is positioned inside the shell (1-1), the surface of the splicing sleeve (2) is coated with an insulating material, holes for power transmission leads (1) to pass through are formed in two opposite side faces (1-10) of the shell (1-1), the power transmission leads (1) pass through the holes to fix the shell (1-1) on the power transmission leads, a capacitor pole plate (4), a main circuit board (1-6), a mutual inductance energy-taking sensor (1-5) and a lithium battery (1-7) are arranged on the inner wall of the shell (1-1), the lead of the capacitor pole plate (4) is connected with the main circuit board (1-6), the lithium battery (1-7) is connected with the main circuit board (1-6), and the main circuit board (1-6) is in wireless communication connection with the monitoring center (3).
2. An electric power transmission conductor splicing sleeve type transformer on-line monitoring device according to claim 1, characterized in that the capacitor plate (4) comprises a capacitor lower plate (1-8) arranged at the bottom of the inner wall of the shell (1-1) and a capacitor upper plate (1-9) arranged at the lower surface of the splicing sleeve (2), and the area and the length of the capacitor upper plate (1-9) are larger than those of the capacitor lower plate (1-8).
3. An electrical power transmission line connection tube type transformer on-line monitoring device according to claim 1, the main circuit board (1-6) is fixedly connected with the bottom of the inner wall of the shell (1-1), the main circuit board (1-6) comprises a microprocessor (3-1) inside, the microprocessor (3-1) is respectively connected with the power control module (3-2), the charge measurement module (3-3) and the 4G communication module (3-4), the capacitor plate (4) is connected with the input end of the charge measuring module (3-3), the power supply control module (3-2) is connected with the mutual inductance energy-taking sensor (1-5) and the lithium battery (1-7), the 4G communication module (3-4) is in communication connection with the monitoring center (3).
4. An electric power transmission line connection tube type transformer on-line monitoring device according to claim 1, characterized in that said mutual inductance energy-taking sensor (1-5) is fixedly mounted on the electric power transmission line (1) inside said housing (1-1).
5. An electric transmission conductor connecting tube type transformer on-line monitoring device as claimed in claim 1, characterized in that a side cover (1-4) is installed on the outer surface of the outer casing (1-1), and the side cover (1-4) and the outer casing (1-1) are locked by a hinge (1-2) and a lock catch (1-3).
6. An electric power transmission line connection tube type transformer on-line monitoring device according to claim 1, characterized in that the connection of the electric power transmission line (1) and the outer casing (1-1) is sealed by waterproof mastic.
7. The power transmission conductor connecting tube type transformer on-line monitoring device according to claim 1, wherein the shell (1-1) is made of acrylic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754276.7U CN210036589U (en) | 2019-05-23 | 2019-05-23 | Transmission line splicing sleeve deformation on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754276.7U CN210036589U (en) | 2019-05-23 | 2019-05-23 | Transmission line splicing sleeve deformation on-line monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN210036589U true CN210036589U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920754276.7U Expired - Fee Related CN210036589U (en) | 2019-05-23 | 2019-05-23 | Transmission line splicing sleeve deformation on-line monitoring device |
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| CN (1) | CN210036589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895964A (en) * | 2020-07-22 | 2020-11-06 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
| CN116338142A (en) * | 2023-02-28 | 2023-06-27 | 浙江大学 | Device and method for measuring surface deformation of hydrate reservoir in supergravity experiment |
-
2019
- 2019-05-23 CN CN201920754276.7U patent/CN210036589U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895964A (en) * | 2020-07-22 | 2020-11-06 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
| CN111895964B (en) * | 2020-07-22 | 2022-02-18 | 北京帕尔普线路器材有限公司 | Monitoring front end and monitoring device for power transmission line |
| CN116338142A (en) * | 2023-02-28 | 2023-06-27 | 浙江大学 | Device and method for measuring surface deformation of hydrate reservoir in supergravity experiment |
| CN116338142B (en) * | 2023-02-28 | 2024-02-27 | 浙江大学 | Device and method for measuring surface deformation of hydrate reservoir in supergravity experiment |
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Granted publication date: 20200207 |