CN219842538U - Insulator leakage current monitoring device and insulator - Google Patents
Insulator leakage current monitoring device and insulator Download PDFInfo
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- CN219842538U CN219842538U CN202321149373.6U CN202321149373U CN219842538U CN 219842538 U CN219842538 U CN 219842538U CN 202321149373 U CN202321149373 U CN 202321149373U CN 219842538 U CN219842538 U CN 219842538U
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- insulator
- leakage current
- current monitoring
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- monitoring device
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- 239000012212 insulator Substances 0.000 title claims abstract description 100
- 238000012806 monitoring device Methods 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 35
- 229910052744 lithium Inorganic materials 0.000 claims description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 9
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses an insulator leakage current monitoring device and an insulator. The solar panel is arranged on the upper surface of the semicircular shell; the drainage sheet is arranged on the lower surface of the semicircular shell; the power supply unit, the data acquisition and communication unit and the leakage current monitoring unit are arranged inside the semicircular shell; an insulator leakage current monitoring device is arranged on the insulator. The insulator leakage current monitoring device and the insulator provided by the embodiment of the utility model are small in size, light in weight and integrated in structure, can be assembled and disassembled by a single person, can be integrally arranged on the insulator body before the insulator is arranged on a transmission line, do not need to independently mount and arrange on a tower, greatly reduce cost and mounting workload, and meanwhile, the device adopts a low-power-consumption design and has a design service life of more than 3 years.
Description
Technical Field
The utility model relates to the technical field of leakage current monitoring of extra-high voltage transmission lines, in particular to an insulator leakage current monitoring device and an insulator.
Background
As one of the components with the greatest use in the transmission line, the insulator plays an important role in the transmission line, which can provide mechanical support for the wire on the one hand and electrical insulation for the line on the other hand. Insulators used in extra-high voltage transmission lines generally include porcelain insulators, glass insulators, and composite insulators. In the operation process of the insulator, the insulator is affected by a strong electromagnetic field of a line and eroded by an outdoor environment, so that the insulation performance is inevitably reduced, and then electric accidents caused by the reduction of the inner insulation performance and the outer insulation performance, such as internal breakdown, surface flashover and the like, are caused. Where internal breakdown generally occurs in the event of structural damage or degradation within the insulator, the relative probability of occurrence is low. The probability of the occurrence of the surface flashover is relatively much higher, the flashover is obviously influenced by the environmental temperature and humidity and the air quality, and when the surface of the insulator is seriously polluted due to the too small environmental humidity, the too large environmental humidity or the air pollution, the leakage current of the shape along the surface of the insulator is caused, so that flashover accidents such as dry flashover, wet flashover, pollution flashover and the like are formed. In order to avoid flashover incidents, it is necessary to monitor the leakage current along the surface of the insulator.
In order to monitor leakage current on the surface of an insulator, a large-size leakage current monitoring system is additionally arranged on a power transmission tower after the insulator is installed on the power transmission line in the traditional method, in order to collect leakage current on the surface of the insulator, an acquisition ring is generally arranged on the surface of the insulator, the leakage current is led out to the leakage current monitoring system through the acquisition ring, in order to ensure that the leakage current monitoring system can run for a long time, a self-energy-taking device is often additionally arranged on the monitoring system to take energy from the line or a large-capacity storage battery with large capacity and large weight is adopted to ensure that the requirements of power supply and power consumption of the monitoring system are met, great inconvenience is brought to construction and installation, because the fact that the monitoring device is additionally arranged on the tower after the insulator is installed on the tower is consumed by a great amount of manpower and material resources, the safety operation risk and the accompanying economic cost of an electric worker for carrying large-sized device equipment to climb the tower are very high, and in particular, in this case, the monitoring system comprising a plurality of modules such as the leakage current monitoring device, the acquisition ring, the self-energy-taking device and the like is required to be erected on an online line, and the work load and the risk are doubled.
Disclosure of Invention
In view of the above, the embodiment of the utility model provides an insulator leakage current monitoring device, which aims to solve the problems that a monitoring system in the prior art needs to be installed on a tower, the installation cost is high due to complex and scattered structural devices, and a self-energy-taking device is required to be used due to large power consumption of the monitoring system, so that the monitoring system cannot operate once a line is subjected to power failure maintenance. Meanwhile, the insulator is provided with the insulator leakage current monitoring device when leaving the factory, and then the insulator can start to operate and monitor after being installed on a tower without additional independent construction and installation monitoring equipment.
The embodiment of the utility model provides an insulator leakage current monitoring device which comprises two semicircular shells (1) which are butted together, a solar cell panel (2), a drainage sheet (3), a power supply unit (4), a data acquisition and communication unit (5) and a leakage current monitoring unit (6); the solar cell panel (2) is arranged on the upper surface of the semicircular shell (1); the drainage sheet (3) is arranged on the lower surface of the semicircular shell (1); the power supply unit (4), the data acquisition and communication unit (5) and the leakage current monitoring unit (6) are arranged inside the semicircular shell (1); the power supply unit (4) is connected with the solar cell panel (2) and the leakage current monitoring unit (6); the data acquisition and communication unit (5) is connected with the drainage sheet (3) and the leakage current monitoring unit (6).
Further, the leakage current monitoring unit (6) specifically comprises an MCU chip (611), a temperature and humidity acquisition unit (612) and a solar radiation acquisition unit (613), wherein the MCU chip (611) is connected with the temperature and humidity acquisition unit (612) and the solar radiation acquisition unit (613).
Further, the MCU chip (611) is any one of STM8, STC8, STM32 and APM 32.
Further, the data acquisition and communication unit (5) comprises a signal amplifier (511), an analog-to-digital converter (512), a 433M communication unit (521) and a LoRa communication unit (522); wherein the signal amplifier (511) is connected with the drainage sheet (3) and the analog-to-digital converter (512); the analog-to-digital converter (512), the 433M communication unit (521) and the LoRa communication unit (522) are connected with the leakage current monitoring unit (6).
Further, the power supply unit (4) comprises a lithium battery (411) and a capacitor (412); the capacitor (412) is connected with the lithium battery (411), the solar panel (2) and the leakage current monitoring unit (6).
Further, when the voltage of the lithium battery (411) is higher than the voltage of the solar panel (2), the lithium battery (411) supplies power to the leakage current monitoring unit (6) through the capacitor (412); when the voltage of the solar panel (2) is higher than the voltage of the lithium battery (411), the leakage current monitoring unit (6) is supplied with power by the solar panel (2) through the capacitor (412).
Further, clamping holes (111) and clamping columns (112) are respectively arranged on the two semi-circular shells (1) which are in butt joint; the two semicircular shells (1) are butted together through the joint of the clamping holes (111) and the clamping columns (112).
Further, the drainage sheet (3) is semi-circular; the drainage sheet (3) is detachable.
Further, the insulator leakage current monitoring device is arranged on the surface of the umbrella skirt at the low-voltage end of the porcelain insulator, the glass insulator or the composite insulator in a detachable or non-detachable mode, the lower surface of the semicircular shell (1) is in contact with the surface of the umbrella skirt of the insulator, and the inner edge of the semicircular shell (1) is sleeved on the periphery of the hardware fitting or the sheath at the low-voltage end of the insulator.
The second aspect of the utility model provides an insulator, wherein an insulator leakage cable monitoring device is arranged on the insulator, and the insulator is a glass insulator, a porcelain insulator or a composite insulator.
The technical scheme in the embodiment of the utility model has the following advantages: the embodiment of the utility model provides an insulator leakage current monitoring device and an insulator, which are small in size, light in weight and integrated in structure, and can be assembled and disassembled by a single person.
Drawings
FIG. 1 is a schematic view of a semi-circular housing of an insulator leakage current monitoring device of the present utility model;
FIG. 2 is a schematic view of the bottom of a semi-circular housing of an insulator leakage current monitoring device according to the present utility model;
FIG. 3 is a schematic top view of a semi-circular shell of an insulator leakage current monitoring device according to the present utility model;
FIG. 4 is a schematic diagram showing the overall effect of the insulator leakage current monitoring device of the present utility model after the semi-circular housings are docked;
FIG. 5 is a schematic front view of an insulator with an insulator leakage current monitoring device according to the present utility model;
FIG. 6 is a schematic side view of an insulator with an insulator leakage current monitoring device according to the present utility model;
fig. 7 is a schematic diagram of electrical connection relation of an insulator leakage current monitoring device according to the present utility model.
Reference numerals: 1-a semi-circular ring-shaped housing; 111-clamping holes; 112-clamping the column; 2-a solar panel; 3-drainage sheets; 4-a power supply unit; 411-lithium battery; 412-capacitance; 5-a data acquisition and communication unit; 511-a signal amplifier; 512-analog-to-digital converter; 521-433M communication units; 522-LoRa communication unit; 6-a leakage current monitoring unit; 611-an MCU chip; 612-a temperature and humidity acquisition unit; 613-a solar radiation collection unit; 7-an insulator; 8-end fittings.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, an embodiment of the utility model relates to an insulator leakage current monitoring device, which is mainly applied to monitoring leakage current on the surface of an insulator of an ultra-high voltage transmission line.
The utility model relates to an insulator leakage current monitoring device which comprises two semicircular annular shells 1 which are butted together, a solar cell panel 2, a drainage sheet 3, a power supply unit 4, a data acquisition and communication unit 5 and a leakage current monitoring unit 6. The solar panel 2 is arranged on the upper surface of the semicircular shell 1; the drainage sheet 3 is arranged on the lower surface of the semicircular shell 1; in particular, the solar panel 2 is integrally arranged on the upper surface of the semicircular shell 1; the drainage sheet 3 is semicircular and can be detached from the lower surface of the semicircular shell 1. The power supply unit 4, the data acquisition and communication unit 5 and the leakage current monitoring unit 6 are installed inside the semicircular casing 1. In particular, in this embodiment, a power supply unit is disposed in one of the semi-circular housings 1, and a data acquisition unit and a communication unit are disposed in the other semi-circular housing 1, so that the weights of the two semi-circular housings are uniform. The total weight of the insulator leakage current monitoring device is not more than 0.5kg, and the running power consumption is not more than 0.2mW.
As a preferred embodiment, two semi-circular shells 1 which are butted together are respectively provided with a clamping hole 111 and a clamping column 112; the two semi-circular housings 1 are butted together by engagement of the snap holes 111 and the snap posts 112.
The utility model relates to an insulator leakage current monitoring device, which is characterized in that the insulator leakage current monitoring device is detachably or irremovably arranged on the surface of a low-voltage end umbrella skirt of a glass insulator, a porcelain insulator or a composite insulator, the lower surface of a semicircular shell 1 is in contact with the surface of the insulator umbrella skirt, the inner edge of the semicircular shell 1 is sleeved on the periphery of a hardware fitting or a sheath at the low-voltage end of the insulator, and the insulator leakage current monitoring device is mounted. The device is integrally arranged, does not comprise a self-energy-taking device and a collecting ring which are distributed, and can greatly reduce the workload of installation and layout; the volume is small, the weight is light, and the radius of the semicircular shell 1 is not more than 20cm; the height is not more than 5cm, and the insulator leakage current monitoring device can be disassembled and assembled by a single person.
Referring to fig. 2, 3 and 4, in this embodiment, the power supply unit 4, the data acquisition and communication unit 5 and the leakage current monitoring unit 6 are integrated in an integral structure, and due to small volume, light weight and convenient disassembly and assembly, the device can be integrally installed on the insulator body after leaving the factory and before being put on the tower, thereby fundamentally avoiding the need of installing the insulator leakage current monitoring device after putting on the tower again.
Referring to fig. 7, a power supply unit 4 is connected with a solar panel 2 and a leakage current monitoring unit 6; the data acquisition and communication unit 5 is connected with the drainage sheet 3 and the leakage current monitoring unit 6.
The leakage current monitoring unit 6 specifically includes an MCU chip 611, a temperature and humidity collecting unit 612 and a solar radiation collecting unit 613, where the MCU chip 611 connects the temperature and humidity collecting unit 612 and the solar radiation collecting unit 613. Wherein, the MCU chip 611 is used for calculating leakage current data; the temperature and humidity acquisition unit 612 is used for acquiring temperature and humidity to calculate the variation trend of the leakage current, and further transmitting the variation trend of the current to the MCU chip 611 to be added into the leakage current data operation; the solar radiation collection unit 613 is configured to collect solar radiation for solar power generation forecasting, and adjust the operation of the solar panel 2 through solar power generation forecasting.
As a preferred embodiment, the MCU chip 611 is any one of STM8, STC8, STM32, and APM 32.
Wherein the data acquisition and communication unit 5 comprises a signal amplifier 511, analog-to-digital converters 512, 433M communication unit 521 and a LoRa communication unit 522; wherein, the signal amplifier 511 is connected with the drainage sheet 3 and the analog-digital converter 512; analog-to-digital converters 512, 433M communication unit 521 and LoRa communication unit 522 are connected to leakage current monitoring unit 6.
As a preferred embodiment, the 433M communication unit 521 is mainly used for short-distance data transmission; loRa communication unit 522 is primarily for long distance data transmission. The communication unit may also select a Zigbee communication module, a 4G internet of things card, etc. (not shown in this embodiment), so as to meet the communication requirements under various conditions.
Wherein the power supply unit 4 includes a lithium battery 411 and a capacitor 412; the capacitor 412 is connected to the lithium battery 411, the solar panel 2 and the leakage current monitoring unit 6.
As a preferred embodiment, when the voltage of the lithium battery 411 is higher than the voltage of the solar panel 2, power is supplied to the leakage current monitoring unit 6 by the lithium battery 411 through the capacitor 412; when the voltage of the solar cell panel 2 is higher than the voltage of the lithium battery 411, the leakage current monitoring unit 6 is supplied with power by the solar cell panel 2 through the capacitor 412.
The utility model relates to an insulator leakage current monitoring device and an insulator, which are used for reducing the energy loss of circuits and devices through the circuit design of ultralow power consumption, intelligently judging the monitoring process and signal processing by combining the working logic and the flow of the monitoring device, finely grabbing key characteristic data, reducing data redundancy, ensuring the accuracy of collected signals and reducing the input of chip calculation force, thereby reducing the power consumption of the whole system. Meanwhile, on the basis of low power consumption, the harsh requirements on a power supply system are reduced, renewable energy sources are used for energy supplement to the system, meanwhile, lithium batteries and super capacitors with minimum self-loss are selected, and the energy utilization rate is improved. The application scenario of the combination device, see fig. 5 and 6, is mainly installed at the top end of the insulator string, belongs to the light receiving surface, and the power supply system can be directly designed at the top end of the shell, so that the layout of cables is reduced, and the space is saved.
According to the utility model, through the design principle of the multi-layer circuit board and the structural design of nearby layout, the paths of various cables are reduced to the maximum extent, and the two-part structure is quickly and conveniently installed in place by adopting a quick connection mode. The device adopts a low-power consumption design, the running power consumption is not more than 0.2mW, and the design service life of more than three years can be realized without adding a self-energy-taking device or a high-capacity battery.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the above embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (10)
1. The insulator leakage current monitoring device is characterized by comprising two semicircular annular shells (1) which are butted together, a solar cell panel (2), a drainage sheet (3), a power supply unit (4), a data acquisition and communication unit (5) and a leakage current monitoring unit (6); the solar cell panel (2) is arranged on the upper surface of the semicircular shell (1); the drainage sheet (3) is arranged on the lower surface of the semicircular shell (1); the power supply unit (4), the data acquisition and communication unit (5) and the leakage current monitoring unit (6) are arranged inside the semicircular shell (1); the power supply unit (4) is connected with the solar cell panel (2) and the leakage current monitoring unit (6); the data acquisition and communication unit (5) is connected with the drainage sheet (3) and the leakage current monitoring unit (6).
2. The insulator leakage current monitoring device according to claim 1, wherein the leakage current monitoring unit (6) specifically comprises an MCU chip (611), a temperature and humidity acquisition unit (612) and a solar radiation acquisition unit (613), and wherein the MCU chip (611) is connected with the temperature and humidity acquisition unit (612) and the solar radiation acquisition unit (613).
3. An insulator leakage current monitoring device according to claim 2, characterized in that the MCU chip (611) is any one of STM8, STC8, STM32, APM 32.
4. An insulator leakage current monitoring device according to claim 1, characterized in that the data acquisition and communication unit (5) comprises a signal amplifier (511), an analog-to-digital converter (512), a 433M communication unit (521) and a LoRa communication unit (522); wherein the signal amplifier (511) is connected with the drainage sheet (3) and the analog-to-digital converter (512); the analog-to-digital converter (512), the 433M communication unit (521) and the LoRa communication unit (522) are connected with the leakage current monitoring unit (6).
5. An insulator leakage current monitoring device according to claim 1, characterized in that the power supply unit (4) comprises a lithium battery (411) and a capacitor (412); the capacitor (412) is connected with the lithium battery (411), the solar panel (2) and the leakage current monitoring unit (6).
6. An insulator leakage current monitoring device according to claim 5, characterized in that the leakage current monitoring unit (6) is supplied by the lithium battery (411) through the capacitor (412) when the voltage of the lithium battery (411) is higher than the voltage of the solar panel (2); when the voltage of the solar panel (2) is higher than the voltage of the lithium battery (411), the leakage current monitoring unit (6) is supplied with power by the solar panel (2) through the capacitor (412).
7. An insulator leakage current monitoring device according to claim 1, characterized in that the two semi-circular shells (1) butted together are respectively provided with a clamping hole (111) and a clamping column (112); the two semicircular shells (1) are butted together through the joint of the clamping holes (111) and the clamping columns (112).
8. An insulator leakage current monitoring device according to claim 1, characterized in that the drainage sheet (3) is semi-circular; the drainage sheet (3) is detachable.
9. The insulator leakage current monitoring device according to claim 1, wherein the insulator leakage current monitoring device is detachably or irremovably mounted on the surface of a low-voltage end umbrella skirt of a porcelain insulator, a glass insulator or a composite insulator, the lower surface of a semicircular shell (1) is in contact with the surface of the insulator umbrella skirt, and the inner edge of the semicircular shell (1) is sleeved on the periphery of a hardware fitting or a sheath at the low-voltage end of the insulator.
10. An insulator, characterized in that the insulator is provided with the insulator leakage cable monitoring device according to any one of claims 1 to 9, and the insulator is one of a glass insulator, a porcelain insulator or a composite insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149373.6U CN219842538U (en) | 2023-05-12 | 2023-05-12 | Insulator leakage current monitoring device and insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149373.6U CN219842538U (en) | 2023-05-12 | 2023-05-12 | Insulator leakage current monitoring device and insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219842538U true CN219842538U (en) | 2023-10-17 |
Family
ID=88303163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321149373.6U Active CN219842538U (en) | 2023-05-12 | 2023-05-12 | Insulator leakage current monitoring device and insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219842538U (en) |
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2023
- 2023-05-12 CN CN202321149373.6U patent/CN219842538U/en active Active
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Denomination of utility model: An insulator leakage current monitoring device and insulator Granted publication date: 20231017 Pledgee: Bank of China Limited Guangzhou Development Zone Branch Pledgor: GUANGZHOU GUANGHUA ZHIDIAN TECHNOLOGY CO.,LTD. Registration number: Y2024980007756 |