Device for monitoring pollution degree of insulator in transformer substation

Abstract

The device comprises a mounting base, a power supply system and a communication system, a cylindrical box body is arranged on the upper end face of the mounting base, the power supply system is fixedly arranged on the mounting base, the communication system is arranged in the cylindrical box body, and the communication system is arranged in the cylindrical box body. The communication system comprises a wireless data transmission module and a communication module, a data conversion module is further arranged in the cylindrical box body, and the data conversion module is electrically connected with the wireless data transmission module; the device further comprises a fixing clamp and optical fiber sensors, the fixing clamp surrounds the outer surface of the cylindrical box body, the optical fiber sensors are installed on the fixing clamp, the number of the optical fiber sensors is at least three, the three optical fiber sensors are evenly distributed on the fixing clamp, and the optical fiber sensors are electrically connected with the data conversion module and the power supply system. The device does not need to be hung, only needs to be installed on a wire pile, is low in installation position, is stable and reliable in detection data, reduces the danger of operation, and is economical and practical.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, and more specifically to a monitoring device for the pollution level of insulators in a substation. Background Technology

[0002] Contaminants on insulators generally possess a certain degree of conductivity and hygroscopicity. As contaminants accumulate on substation equipment, under conditions of high temperature and humidity (such as drizzle or heavy fog), the insulation level of the equipment will decrease, increasing the leakage current on the insulation surface. This can lead to flashover discharge even at operating voltage, a phenomenon known as pollution flashover. Because pollution flashover accidents cover large areas, require long response times, and result in significant economic losses, power restoration is generally not possible through reclosing. Therefore, pollution flashover prevention and control is an extremely important aspect of substation operation and maintenance.

[0003] Currently, the method for detecting substation pollution involves suspending porcelain insulators on the substation equipment structure. Routine inspections require working at heights to remove the insulators from the structure and transport them to the ground for sampling and testing with specialized instruments. After the work is completed, the insulators are returned to their original positions on the equipment structure. This measurement process is cumbersome, the work at heights is dangerous for personnel, and pollution data cannot be obtained in real time, seriously threatening the safe operation of the power grid. This method also has many drawbacks: 1. The insulator strings are suspended at a high height, leading to unstable high and low voltage data detection and inaccurate data; 2. It requires working at heights, consuming significant manpower and resources, increasing operational risks, and affecting the normal operation of the power system; 3. The measurement cycle and time are long, during which pollution data cannot be detected in real time, failing to provide early warning; 4. With a large number of substations, the measurement cost is high, making it uneconomical. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a device for monitoring the pollution level of insulators in substations. This invention does not require suspension; it can be installed on a utility pole. The installation position is low, the detection data is stable and reliable, the operation is less dangerous, and it is economical.

[0005] The purpose of this utility model is achieved through the following technical solution: a device for monitoring the pollution level of insulators in a substation, comprising a mounting base, a power supply system, and a communication system. The mounting base has a cylindrical housing on its upper surface. The power supply system is fixedly mounted on the mounting base and provides power to the communication system. The communication system is located inside the cylindrical housing and includes a wireless data transmission module and a communication module. A data conversion module is also located inside the cylindrical housing. The data conversion module is electrically connected to the wireless data transmission module. The communication module is used by the user to view the detection data in real time on a mobile phone. The device also includes a fixing clamp and... The fiber optic sensor is mounted on the fixed clamp, which surrounds the outer surface of the cylindrical housing. At least three fiber optic sensors are evenly distributed on the fixed clamp. The fiber optic sensors are electrically connected to a data conversion module and a power system. The power system includes a solar panel, a charging controller, and a battery. The solar panel is mounted on the mounting base via a connecting column, which has a crossbar for fixing the solar panel. The charging controller and battery are housed within the cylindrical housing and are electrically connected to the solar panel. The battery is also electrically connected to the power system and the fiber optic sensors.

[0006] In one preferred embodiment, the lower end face of the mounting base is provided with a fixing flap, and the fixing flap is provided with a strip-shaped mounting hole.

[0007] In one preferred embodiment, the fiber optic sensor is made of a quartz glass rod.

[0008] In one preferred embodiment, the upper surface of the cylindrical box is provided with a metal cover, and the fiber optic sensor is located inside the metal cover.

[0009] The beneficial effects of this utility model are as follows: Compared with current detection methods, this system uses fiber optic sensors, which have high measurement accuracy and superior overall performance compared to the insulation characteristics and mechanical strength of insulator strings, thus improving work efficiency; it has a long service life and a high safety factor, is an industrial-grade product, uses a waterproof metal shell, is resistant to electromagnetic interference, is suitable for various harsh climatic environments, reduces the occurrence of power grid safety accidents, reduces personnel workload, and uses a solar power supply system, which is economical and makes full use of existing resources. It is easy to install and maintain, has flexible communication methods, supports real-time monitoring and data reading via mobile phone, and has a wide range of applications and a long service life. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram, 1-mounting base, 11-fixed flip-up plate, 12-strip mounting hole, 2-power system, 3-cylindrical housing, 4-fixing clamp, 5-fiber optic sensor, 6-connecting column, 7-crossbar, 8-metal cover. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0018] The terms "parallel" and "perpendicular" do not mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that its direction is more parallel than "perpendicular," not that the structure must be completely parallel, but that it can be slightly tilted.

[0019] The terms "horizontal," "vertical," and "sag" do not imply that a component must be absolutely horizontal, vertical, or sagging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0020] Furthermore, terms like "roughly" and "basically" are used to indicate that the content does not require absolute precision, but rather allows for a certain degree of deviation. For example, "roughly equal" does not simply mean absolute equality; in actual production and operation, achieving absolute "equality" is difficult, and a certain degree of deviation is generally present. Therefore, besides absolute equality, "roughly equal to" also includes the aforementioned situation where a certain degree of deviation exists. Using this as an example, in other cases, unless otherwise specified, terms like "roughly" and "basically" have similar meanings.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] See Figure 1This utility model provides a technical solution: a device for monitoring the pollution level of insulators in a substation, including a mounting base 1, a power supply system 2, and a communication system. The mounting base 1 has a cylindrical housing 3 on its upper surface. The power supply system 2 is fixedly mounted on the mounting base 1 and provides power to the communication system. The communication system is located inside the cylindrical housing 3 and includes a wireless data transmission module and a communication module. The cylindrical housing 3 also contains a data conversion module, which is electrically connected to the wireless data transmission module. The communication module is used by the user to view the detection data in real time on a mobile phone. The device also includes a fixing clamp 4 and an optical fiber sensor 5. The fixing clamp 4 surrounds the insulator. On the outer surface of the cylindrical housing 3, the fiber optic sensor 5 is mounted on the fixing fixture 4, and at least three fiber optic sensors 5 are provided, which are evenly distributed on the fixing fixture 4 for multi-directional detection, thereby improving the accuracy of the detection data. The fiber optic sensor 5 is electrically connected to the data conversion module and the power system 2. The power system 2 includes a solar panel, a charging controller, and a battery. The solar panel is mounted on the mounting base 1 via a connecting column 6, and the connecting column 6 is provided with a crossbar 7 for fixing the solar panel. The charging controller and the battery are located inside the cylindrical housing 3 and are electrically connected to the solar panel. The battery is electrically connected to the power system 2 and the fiber optic sensor 5. Compared to current detection methods, this system employs a fiber optic sensor 5, offering high measurement accuracy without compromising the insulation characteristics and mechanical strength of the insulator string, thus improving work efficiency. It boasts a long service life, a high safety factor, and is an industrial-grade product. Featuring a waterproof metal casing, it resists electromagnetic interference and is suitable for various harsh climates, reducing the occurrence of power grid safety accidents and minimizing workload. Furthermore, it utilizes a solar power system, making it economical and fully utilizing existing resources. Installation and maintenance are convenient, and communication methods are flexible, supporting real-time data reading via mobile phone. It has a wide range of applications and a long service life. The solar + battery power supply mode solves the problem of high-altitude power extraction for substations, and the solar + battery combination offers advantages such as easy installation, expansion, and disassembly.

[0023] Preferably, the lower end face of the mounting base 1 is provided with a fixing flange 11, and the fixing flange 11 is provided with a strip-shaped mounting hole 12. The strip-shaped hole makes installation more convenient and quick, eliminating the need for hole-to-hole positioning.

[0024] Preferably, the fiber optic sensor 5 is made of a quartz glass rod. When there are contaminants on the quartz glass rod, the salts in the contaminants change the scattering rate of light inside the quartz rod in the form of crystals. By measuring the light scattering rate inside the quartz rod, the equivalent salt density can be calculated. The ash in the contaminants absorbs light inside the quartz rod. By detecting the light attenuation inside the quartz rod, the ash density can be calculated. The mechanism of light energy loss of the optical sensor is mainly due to the absorption of contaminants, followed by the scattering of contaminants. Based on the mechanism of light energy loss, the degree of contamination can be detected.

[0025] Preferably, the upper surface of the cylindrical housing 3 is provided with a metal cover 8, and the fiber optic sensor 5 is located inside the metal cover 8. The metal cover 8 not only protects the fiber optic sensor 5 from rain, but also has the ability to resist electromagnetic interference, further improving the accuracy of the detection data.

[0026] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A device for monitoring the degree of contamination of an insulator in a substation, characterized in that: The utility model relates to a kind of solar energy power supply system, including installation base, power supply system and communication system, the upper end surface of the installation base is equipped with cylindrical box, the power supply system is fixed on installation base, and power supply system provides electric energy for communication system, the communication system is located in the cylindrical box, and communication system includes wireless data transmission module and communication module, the inside of cylindrical box is further equipped with data conversion module, the data conversion module is electrically connected with the wireless data transmission module, and the communication module is used for user end to view detection data in real time on mobile phone; It also includes a fixed clamp and an optical fiber sensor, the fixed clamp is wrapped around the outer surface of the cylindrical box, the optical fiber sensor is installed on the fixed clamp, and the optical fiber sensor is provided with at least three, three optical fiber sensors are evenly distributed on the fixed clamp, and the optical fiber sensor is electrically connected with the data conversion module and the power supply system; The power supply system includes a solar panel, a charge controller and a battery, the solar panel is provided on the installation base through a connecting column, a horizontal bar for fixing the solar panel is provided on the connecting column, the electric controller and the battery are provided in the cylindrical box, and the electric controller and the battery are electrically connected with the solar panel, and the battery is electrically connected with the power supply system and the optical fiber sensor.

2. The apparatus for monitoring the degree of contamination of an insulator in a substation according to claim 1, characterized in that: The lower end surface of the installation base is provided with a fixed turn, and a strip-shaped mounting hole is provided on the fixed turn.

3. The apparatus for monitoring the degree of contamination of an insulator in a substation according to claim 1, characterized in that: The optical fiber sensor is made of quartz glass rod.

4. The apparatus for monitoring the degree of contamination of an insulator in a substation according to claim 1, characterized in that: The upper end surface of the cylindrical box is provided with a metal cover, and the optical fiber sensor is located in the metal cover.

Images