An installation structure for a GIS partial discharge detection device

Abstract

This utility model belongs to the field of high-voltage electrical equipment monitoring technology, and discloses an installation structure for a GIS partial discharge detection device. The device includes a detection host, a UHF sensor, and installation components. The installation components employ an innovative design of ratchet straps and quick-release parts, enabling rapid sensor installation and position adjustment via S-shaped buckles, allowing sensor replacement without removing the straps. Elastic shielding cotton is provided between the quick-release parts and the sensor, ensuring a tight fit between the sensor and the basin-type insulator while effectively shielding against electromagnetic interference. The detection host offers three installation methods: guide rail clips, strong magnet adsorption, and threaded mounting holes, adaptable to different installation environments. This utility model solves the problems of cumbersome operation and poor adaptability of traditional fixing methods, offering advantages such as convenient installation, accurate positioning, and strong anti-interference capabilities, significantly improving the efficiency and reliability of GIS partial discharge detection.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage electrical equipment monitoring technology, and in particular relates to an installation structure for a GIS partial discharge detection device. Background Technology

[0002] GIS (Gas Insulation System) is widely used due to its advantages such as small footprint, minimal susceptibility to environmental interference, and stable and safe operation. However, GIS contains numerous internal components, including various switches, transformers, surge arresters, cables, connectors, and built-in sensors. With so many internal components, instability may occur in some parts during production, transportation, or prolonged use, potentially leading to unforeseen problems such as cracking, wear, and debris accumulation. This can cause localized field distortion within the GIS during operation, resulting in partial discharge, accompanied by phenomena such as light, heat, and sound. This can gradually develop into a dangerous discharge path, leading to insulation breakdown and ultimately, a production safety accident.

[0003] UHF (ultra-high frequency) sensors are commonly used for partial discharge detection in GIS (Gas Insulation System). These sensors can detect the electromagnetic waves generated by partial discharge in GIS. The main advantages of this method are high sensitivity, strong anti-interference capability, and the ability to locate the discharge source based on the time difference between the electromagnetic wave's arrival at different sensors. It has already been successfully applied to GIS production and operational monitoring.

[0004] However, most existing UHF sensors are fixed to the insulator using metal straps and bolts, while others use ratchet straps inserted into the sensor. This makes adding or replacing sensors cumbersome. Furthermore, the control box for UHF sensors has a limited range of fixing methods, failing to meet diverse installation requirements. Utility Model Content

[0005] The purpose of this utility model is to provide an installation structure for a GIS partial discharge detection device to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the specific technical solution of the installation structure of the GIS partial discharge detection device of this utility model is as follows:

[0007] An installation structure for a GIS partial discharge detection device includes a detection host, a UHF sensor, and an installation assembly. The detection host is installed inside an electrical cabinet housing the GIS. The UHF sensor is mounted on a basin-type insulator of the GIS via the installation assembly. The UHF sensor is connected to the detection host via a cable and transmits the detection results to the detection host. The installation assembly includes a ratchet strap, elastic shielding cotton, and a quick-release component. The UHF sensor is fixed to the inside of the ratchet strap via the quick-release component. Elastic shielding cotton is placed between the quick-release component and the UHF sensor. The ratchet strap is tied to the flange face of the basin-type insulator, keeping the UHF sensor tightly against the outer wall of the basin-type insulator.

[0008] Furthermore, the ratchet strap is ring-shaped, with its ends connected by a ratchet lock, and its size is adjustable.

[0009] Furthermore, the ratchet strap is fixed around the outer wall of the basin insulator, and one or more UHF sensors can be installed or removed after the tightness is adjusted by the ratchet lock.

[0010] Furthermore, the quick-release component has an S-shaped buckle on the outside and a cavity on the inside to accommodate the UHF sensor. The quick-release component is fastened to the ratchet strap by the S-shaped buckle, and the quick-release component can be fixed to the ratchet strap by loosening the ratchet strap without disassembling it.

[0011] Furthermore, the S-shaped buckle has an opening to the left at one end and an opening to the right at the other end, and is fixed to the ratchet strap by engaging the ratchet strap through the openings at both ends.

[0012] Furthermore, the bottom of the cavity of the quick-release component is padded with elastic shielding cotton, and the UHF ultra-high frequency sensor is embedded in the cavity.

[0013] Furthermore, the back panel of the detection host is equipped with guide rail clips and strong magnets.

[0014] Furthermore, the back panel of the detection host is also provided with threaded mounting holes for mounting a 3D gimbal bracket.

[0015] The installation structure of the GIS partial discharge detection device of this utility model has the following advantages:

[0016] 1. Quick installation and flexible adjustment

[0017] The design incorporates a ratchet strap and quick-release mechanism, allowing for rapid installation or replacement of UHF sensors without removing the strap, significantly improving installation efficiency.

[0018] The S-shaped buckle design of the quick-release fitting allows the sensor to be flexibly adjusted on the strap, making it easy to optimize the layout according to monitoring needs.

[0019] 2. High compatibility and adaptability

[0020] The main unit supports multiple fixing methods, including guide rail clips, strong magnetic adsorption, and threaded mounting holes (can be used with a 3D gimbal bracket), adapting to different electrical cabinet installation environments and meeting diverse needs.

[0021] 3. Stable monitoring and anti-interference

[0022] The elastic shielding cotton provides pre-tightening force to ensure a tight fit between the sensor and the basin insulator, preventing loosening, and also shields the sensor from electromagnetic interference from the quick-release components, thus improving detection accuracy.

[0023] 4. Scalability and Precise Positioning

[0024] Multiple sensors can be easily installed, and the three-dimensional spatial positioning of the power supply can be achieved through the collaborative work of multiple sensors, thereby enhancing the fault diagnosis capability.

[0025] 5. Durability and ease of maintenance

[0026] The ratchet strap is adjustable in tightness to accommodate different sizes of pot insulators, and its simple and reliable structure reduces maintenance costs during long-term use.

[0027] This utility model solves the problems of cumbersome and poor adaptability of traditional fixing methods through modular design and multi-functional installation scheme, providing an efficient, flexible and reliable installation structure for GIS partial discharge detection. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the installation structure of the GIS partial discharge detection device of this utility model;

[0029] Figure 2 This is a schematic diagram of the installation component structure of this utility model;

[0030] Figure 3 This is a cross-sectional view of the mounting components of this utility model;

[0031] Figure 4 This is a schematic diagram of the quick-assembly component structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the detection host structure of this utility model;

[0033] The markings in the diagram are as follows: 1. Detection host; 11. Guide rail buckle; 12. Strong magnet; 13. Threaded mounting hole; 14. 3D gimbal bracket; 2. UHF ultra-high frequency sensor; 3. Mounting components; 31. Ratchet strap; 32. Elastic shielding cotton; 33. Quick-release component. Detailed Implementation

[0034] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of the installation structure of a GIS partial discharge detection device.

[0035] like Figure 1 As shown, the installation structure of a GIS partial discharge detection device of this utility model includes a detection host 1, a UHF sensor 2, and an installation assembly 3. The detection host 1 is installed inside an electrical cabinet containing the GIS. The UHF sensor 2 is installed on the basin-type insulator of the GIS via the installation assembly 3. The UHF sensor 2 is connected to the detection host 1 via a cable, transmitting the detection results to the detection host 1. The installation assembly 3 includes a ratchet strap 31, elastic shielding cotton 32, and a quick-release component 33. The UHF sensor 2 is fixed to the inside of the ratchet strap 31 via the quick-release component 33. The elastic shielding cotton 32 is placed between the quick-release component 33 and the UHF sensor 2. The ratchet strap 31 is tied to the flange face of the basin-type insulator, keeping the UHF sensor 2 tightly against the outer wall of the basin-type insulator. The elastic shielding cotton 32 can, on the one hand, shield the UHF sensor 2 from interference caused by the quick-release component 33, and on the other hand, provide good pre-tightening force, allowing the UHF sensor 2 to better fit against the surface of the basin-type insulator and preventing it from loosening and falling off.

[0036] like Figure 2-4 As shown, the ratchet strap 31 is a ring, with its ends connected by a ratchet lock, and its size is adjustable. The ratchet strap 31 is fixed around the outer wall of the basin insulator, and one or more UHF sensors 2 can be installed or removed by adjusting the tightness of the ratchet lock.

[0037] The quick-release component 33 has an S-shaped buckle on its outer side and a cavity on its inner side to accommodate the UHF sensor 2. The quick-release component 33 is engaged with the ratchet strap 31 via the S-shaped buckle, allowing for fixation by simply loosening the ratchet strap 31 without removing it. Specifically, one end of the S-shaped buckle has an opening to the left, and the other end has an opening to the right. The buckle engages with the ratchet strap 31 through these openings, thus securing it to the ratchet strap 31. An elastic shielding cotton 32 is placed at the bottom of the cavity of the quick-release component 33, and the UHF sensor 2 is embedded within this cavity. When it is necessary to install the UHF sensor 2, simply pre-install the UHF sensor 2 into the cavity of the quick-release component 33, then loosen the ratchet strap 31, and the quick-release component 33 will engage with the ratchet strap 31, eliminating the need to remove the ratchet strap 31. This achieves rapid installation.

[0038] Under normal circumstances, this device installs one UHF sensor 2 on each basin-type insulator to monitor for and determine the type of discharge. When a discharge is detected, the UHF sensor 2 can be quickly installed at any position on the basin-type insulator using the quick-release assembly 33. By using four UHF sensors 2 on two basin-type insulators, the coordinates of the discharge location in three-dimensional space can be more accurately located.

[0039] like Figure 5 As shown, the back panel of the testing host 1 is equipped with a guide rail clip 11 and a strong magnet 12. Depending on the practical environment, the testing host 1 can be mounted on a guide rail in an electrical cabinet using the guide rail clip 11. If there is no guide rail in the electrical cabinet, it can be attached to the cabinet using the strong magnet 12. The back panel of the testing host 1 also has threaded mounting holes 13. If the testing host 1 needs to be angle-adjustable or not mounted in an electrical cabinet, it can be fixed to the threaded mounting holes 13 on the back of the testing host 1 using a three-dimensional pan-tilt bracket 14. The angle and different mounting positions can be adjusted using the three-dimensional pan-tilt bracket 14. The testing host 1 can be installed in multiple ways, such as by guide rail, magnetic attachment, and pan-tilt, improving installation adaptability.

[0040] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An installation structure for a GIS partial discharge detection device, comprising a detection host (1), a UHF ultra-high frequency sensor (2), and an installation assembly (3), wherein the detection host (1) is installed inside an electrical cabinet containing the GIS, the UHF ultra-high frequency sensor (2) is installed on the basin-type insulator of the GIS via the installation assembly (3), and the UHF ultra-high frequency sensor (2) is connected to the detection host (1) via a cable to transmit the detection result to the detection host (1), characterized in that, The mounting assembly (3) includes a ratchet strap (31), elastic shielding cotton (32), and a quick-release component (33). The UHF ultra-high frequency sensor (2) is fixed to the inside of the ratchet strap (31) by the quick-release component (33). Elastic shielding cotton (32) is placed between the quick-release component (33) and the UHF ultra-high frequency sensor (2). The ratchet strap (31) is tied to the flange face of the basin insulator, so that the UHF ultra-high frequency sensor (2) is tightly attached to the outer wall of the basin insulator.

2. The installation structure of the GIS partial discharge detection device according to claim 1, characterized in that, The ratchet strap (31) is a ring, with its first and last ends connected by a ratchet lock, and its size is adjustable.

3. The installation structure of the GIS partial discharge detection device according to claim 1, characterized in that, The ratchet strap (31) is fixed around the outer wall of the basin insulator. One or more UHF sensors (2) can be installed or removed by adjusting the tightness of the ratchet lock.

4. The installation structure of the GIS partial discharge detection device according to claim 1, characterized in that, The quick-release component (33) has an S-shaped buckle on the outside and a cavity on the inside to accommodate the UHF sensor (2). The quick-release component (33) is fastened to the ratchet strap (31) by the S-shaped buckle. The quick-release component (33) can be fixed to the ratchet strap (31) by loosening the ratchet strap (31) without disassembling the ratchet strap (31).

5. The installation structure of the GIS partial discharge detection device according to claim 4, characterized in that, The S-shaped buckle has an opening to the left at one end and an opening to the right at the other end. It is fixed to the ratchet strap (31) by engaging the ratchet strap (31) through the openings at both ends.

6. The installation structure of the GIS partial discharge detection device according to claim 4, characterized in that, The bottom of the cavity of the quick-release component (33) is padded with elastic shielding cotton (32), and the UHF ultra-high frequency sensor (2) is embedded in the cavity.

7. The installation structure of the GIS partial discharge detection device according to claim 1, characterized in that, The back panel of the detection host (1) is equipped with a guide rail buckle (11) and a strong magnet (12).

8. The installation structure of the GIS partial discharge detection device according to claim 1, characterized in that, The back plate of the detection host (1) also has a threaded mounting hole (13) for mounting a three-dimensional gimbal bracket (14).

Images