Device for locating partial discharges based on a high-speed scanning arrangement

Abstract

A device for locating partial discharges based on a high-speed scanning arrangement, characterized in that it comprises an equipment box and a detection device arranged in the equipment box, wherein the equipment box is provided with a tensile structure and is designed to be slidable; wherein the detection device comprises a partial discharge detection arrangement, a power supply arrangement, a synchronization arrangement, a sensor connection arrangement, a network arrangement, and a signal transmission arrangement, wherein the power supply arrangement, the synchronization arrangement, the sensor connection arrangement, the network arrangement, and the signal transmission arrangement are arranged sequentially from top to bottom and positioned adjacent to a partial discharge detection arrangement; wherein the partial discharge detection arrangement comprises a high-speed scanning arrangement and a keyboard arranged one above the other in the equipment box;wherein a temperature and humidity monitoring arrangement is provided on the other side of the partial discharge detection arrangement opposite the power supply arrangement;

Description

TECHNICAL FIELD

[0001] The present utility model belongs to the technical field of partial discharge detection devices and relates to a device for locating partial discharges based on a high-speed scanning arrangement. STATE OF THE ART

[0002] Partial discharges are an important indicator of insulation degradation in electrical equipment. Their detection is crucial for preventing equipment failures and extending equipment life. Currently, various partial discharge detection methods exist, including the pulsed current method, the ultrasonic method, the optical measurement method, the high-frequency detection method, and the chemical method. Among them, the high-speed sampling method has gained particular attention due to its ability to detect internal partial discharges in equipment. While the high-speed sampling method has advantages in partial discharge detection, it also has certain disadvantages and limitations: Frequency band limitations - While oscilloscopes offer more powerful high-speed sampling capabilities, they are less user-friendly than high-speed sampling arrays.Furthermore, the simultaneous presence of a high-speed sampling system and an oscilloscope in the same device is not possible. Environmental interference: UHF sensors are susceptible to interference from the local electromagnetic environment, such as radio waves or mobile communications, which can lead to misdetection or non-detection. Consequently, the integration of a high-speed sampling system and an oscilloscope in the same device is not feasible. CONTENT OF THE PRESENT UTILITY MODEL

[0003] The present utility model is based on the object of providing a device for locating partial discharges based on a high-speed scanning arrangement, which solves the technical problems of insufficient detection accuracy and imprecise signal pattern identification in ultra-high frequency partial discharge detection.

[0004] In order to solve the above-mentioned technical problems, the technical solution of the present utility model is: A device for locating partial discharges based on a high-speed scanning arrangement, comprising an equipment box and a detection device arranged in the equipment box, wherein the equipment box is provided with a tensile structure and is designed to be slidable; wherein the detection device comprises a partial discharge detection arrangement, a power supply arrangement, a synchronization arrangement, a sensor connection arrangement, a network arrangement, and a signal transmission arrangement, wherein the power supply arrangement, the synchronization arrangement, the sensor connection arrangement, the network arrangement, and the signal transmission arrangement are arranged sequentially from top to bottom and positioned adjacent to a partial discharge detection arrangement; wherein the partial discharge detection arrangement comprises a high-speed scanning arrangement and a keyboard arranged one above the other in the equipment box;wherein a temperature and humidity monitoring arrangement is provided on the other side of the partial discharge detection arrangement opposite the power supply arrangement;

[0005] The device box comprises an upper cover and a box body, wherein the upper cover is integrally and rotatably connected to one side of the box body and a snap structure is provided on the other side of the upper cover for fixed connection to the box body; wherein the partial discharge detection arrangement is arranged on an inner surface of the box body.

[0006] That the power supply arrangement comprises a power supply interface and a power switch, wherein the power supply interface and the power switch are arranged adjacent to an inner surface of the box body and positioned on the same side surface as the partial discharge detection arrangement.

[0007] That the synchronization arrangement comprises a plus synchronization module and a minus synchronization module arranged adjacent to an inner surface of the box body and positioned below the power supply arrangement.

[0008] That the sensor connection assembly comprises a coaxial connection module and a fiber optic connection module arranged adjacent to an inner surface of the box body and positioned below the synchronization assembly.

[0009] That the network arrangement comprises a 5G module and a WiFi module arranged adjacent to an inner surface of the box body and positioned below the sensor connection arrangement.

[0010] That the signal transmission arrangement comprises a USB module and a network interface module which are arranged adjacent to an inner surface of the box body and positioned below the network arrangement.

[0011] That the pulling structure comprises a carrying handle arranged on a side surface of the box body and positioned on the same side as the snap structure.

[0012] That the pulling structure further comprises a pulling rod and a sliding space, wherein the sliding space is arranged in an outer side surface of the box body; wherein the pulling rod is slidably arranged in the sliding space; wherein rollers are further provided on the box body, wherein two rollers are attached to one end of the box body and arranged away from the handle of the pulling rod; and wherein the pulling rod is provided with a pulling handle.

[0013] That the humidity monitoring arrangement comprises a temperature-humidity indicator arranged on an inner surface of the box body and located to the right of the high-speed scanning arrangement.

[0014] The present utility model is characterized primarily by the following advantageous effects: The high-speed sampling system is integrated into an ultra-high-frequency partial discharge detection system and features high time resolution. It can display signal waveforms in real time and accurately capture the timing characteristics of partial discharge events, including the rising edge, duration, and amplitude of discharge pulses. In addition to detecting electromagnetic signals in the UHF band, the system can also record, analyze, and This provides more comprehensive diagnostic information and achieves strong interference immunity. Furthermore, both the rapid identification and analysis of partial discharge phenomena and subsequent in-depth analysis and Record storage is made easier for on-site engineers. This enables multi-channel measurements and simultaneous connection to multiple UHF sensors, expanding the detection range. SHORT DESCRIPTION OF THE DRAWING

[0015] The present utility model will be discussed in more detail below with reference to the accompanying drawings based on exemplary embodiments. These show: Fig. 1 a schematic three-dimensional structural view of the present utility model; Fig. 2 is a schematic structural view of a pull handle of the present utility model; Fig. 3 is a schematic structural view of a detection device of the present utility model; Fig. 4 a front view of the internal structure of the present utility model; Reference symbols: 1 equipment box; 2 detection device; 3 tensile structure; 4 Partial discharge detection arrangement; 5 Power supply arrangement; 6 Synchronization arrangement; 7 Sensor connection arrangement; 8 Network arrangement; 9 Signal transmission arrangement; 10 high-speed scanning arrangement; 11 keyboard; 12 upper lids; 13 box bodies; 14 Snap structure; 15 Power supply interface; 16 power switches; 17 Plus synchronization module; 18 minus synchronization module; 19 Coaxial connection module; 20 fiber optic connection module; 21 5G module; 22 WiFi module; 23 USB module; 24 network interface module; 25 carrying handle; 26 drawbar; 27 sliding space; 28 roll; 29 pull handle; 30 temperature-humidity detection module. DETAILED DESCRIPTION

[0016] It will be Fig.1 to 4, a device for locating partial discharges based on a high-speed scanning arrangement, comprising an equipment box and a detection device arranged in the equipment box, wherein the equipment box is provided with a tensile structure and is designed to be slidable; wherein the detection device comprises a partial discharge detection arrangement, a power supply arrangement, a synchronization arrangement, a sensor connection arrangement, a network arrangement, and a signal transmission arrangement, wherein the power supply arrangement, the synchronization arrangement, the sensor connection arrangement, the network arrangement, and the signal transmission arrangement are arranged sequentially from top to bottom and positioned adjacent to a partial discharge detection arrangement; wherein the partial discharge detection arrangement comprises a high-speed scanning arrangement and a keyboard arranged one above the other in the equipment box;wherein a temperature and humidity monitoring arrangement is provided on the other side of the partial discharge detection arrangement opposite the power supply arrangement;

[0017] In the preferred program, the equipment box comprises an upper cover and a box body, wherein the upper cover is integrally and rotatably connected to one side of the box body and a snap structure is provided on the other side of the upper cover for fixed connection to the box body; wherein the partial discharge detection arrangement is arranged on an inner surface of the box body.

[0018] In the preferred program, the power supply assembly comprises a power supply interface and a power switch, wherein the power supply interface and the power switch are arranged adjacent to an inner surface of the box body and positioned on the same side surface as the partial discharge detection assembly.

[0019] In the preferred program, the synchronization assembly comprises a plus synchronization module and a minus synchronization module arranged adjacent to an inner surface of the box body and positioned below the power supply assembly.

[0020] In the preferred program, the sensor connection assembly comprises a coaxial connection module and a fiber optic connection module arranged adjacent to an inner surface of the box body and positioned below the synchronization assembly.

[0021] In the preferred program, the network assembly includes a 5G module and a WiFi module disposed adjacent to an inner surface of the box body and positioned below the sensor terminal assembly.

[0022] In the preferred program, the signal transmission assembly includes a USB module and a network interface module disposed adjacent to an inner surface of the box body and positioned below the network assembly.

[0023] In the preferred program, the pulling structure comprises a carrying handle arranged on a side surface of the box body and positioned on the same side as the snap structure. In the preferred program, the pulling structure further comprises a pulling rod and a sliding space, wherein the sliding space is arranged in an outer side surface of the box body; wherein the pulling rod is slidably arranged in the sliding space; wherein the box body further comprises rollers, two rollers being attached to one end of the box body and arranged remote from the handle of the pulling rod; and wherein the pulling rod is provided with a pulling handle. In the preferred program, the humidity monitoring arrangement comprises a temperature-humidity indicator arranged on an inner surface of the box body and located to the right of the high-speed sensing arrangement. First example:

[0024] An instrument box 1 and a detection device 2 arranged within the instrument box 1 are provided. The instrument box 1 is provided with a tensile structure 3 and is slidably movable. The instrument box 1 serves for mounting and storing the detection device 2. The tensile structure 3 facilitates convenient portability and mobility. The detection device 2 serves for measuring partial discharge signals that occur on-site.

[0025] The detection device 2 comprises: a partial discharge detection arrangement 4, which transmits a partial discharge signal detected by an ultra-high frequency sensor to a high-speed scanning arrangement 10 and serves to observe and analyze a weak pulse signal generated by partial discharges; a power supply arrangement 5 for supplying power to the other modules; a synchronization arrangement 6, which is connected to a transformer and enables synchronization during signal detection by the ultra-high frequency sensor; a sensor connection arrangement 7 for connecting to the ultra-high frequency sensor and for amplifying and filtering the detected partial discharge signal; a network arrangement 8 with integrated 5G and Wi-Fi communication functions; and a signal transmission arrangement 9 for connecting to downstream signal processing platforms such as industrial computers.The power supply assembly 5, the synchronization assembly 6, the sensor connection assembly 7, the network assembly 8, and the signal transmission assembly 9 are arranged sequentially from top to bottom and positioned adjacent to the partial discharge detection assembly on the left and right. A temperature-humidity monitoring assembly 30 is arranged above the high-speed scanning assembly 10 on the right.

[0026] The partial discharge detection assembly 4 includes a high-speed scanning assembly 10 and a keyboard 11. The high-speed scanning assembly 10 and the keyboard 11 are arranged one above the other in the instrument box 1. A screen of the high-speed scanning assembly 10 is arranged on the surface of the box body 13, while its main body is housed inside the box body 13. The high-speed scanning assembly 10 identifies the phase of a discharge event, measures the pulse shape and the number of discharges, observes the characteristics of the partial discharge, and draws conclusions about the type of discharge and its possible causes.

[0027] The partial discharge detection system 4 further includes an industrial computer connected via USB or a network interface. The high-speed sampling system 10 is configured via the industrial computer, setting appropriate parameters such as sampling rate, bandwidth, time and voltage range to detect weak signals generated by partial discharges. Furthermore, PRPD and PRPS diagrams of the partial discharges can be displayed in real time. These diagrams serve to identify the partial discharge signal types and thus enable the location of the partial discharge source. Second embodiment:

[0028] The equipment box 1 comprises an upper lid 12 and a box body 13. The upper lid 12 is integrally and rotatably connected to one side of the box body 13, and a snap-in structure 14 is provided on the other side of the upper lid 12 for secure connection to the box body 13. The box body 13 and the upper lid 12 are sealingly connected to one another in one piece. The upper lid 12 is opened via the snap-in structure 14. The detection device 2 is arranged on the box body 13, and the upper lid 12 is pivoted to the other side.

[0029] The power supply assembly 5 includes a power supply interface 15 for connecting to a 220V power supply for the device, and a power switch 16 for turning the device on and off. The power supply interface 15 and the power switch 16 are arranged one above the other on an inner surface of the box body 13 and positioned to the left above the high-speed scanning assembly 10.

[0030] The synchronization assembly 6 includes a positive synchronization module 17, which is a positive pole synchronization interface, and a negative synchronization module 18, which is a negative pole synchronization interface. The positive pole synchronization interface and the negative pole synchronization interface are arranged below the power supply assembly 5 and to the left above the high-speed scanning assembly 10. They are connected to a field-installed transformer to acquire a synchronization signal on-site, allowing the precise location of the discharge time. This ensures that data from various sensors can be acquired simultaneously in the high-speed scanning assembly 10, enabling signal pattern detection and improving detection accuracy.The sensor connection assembly 7 includes: a coaxial connection module 19 and a fiber optic connection module 20, which are arranged adjacent to an inner surface of the box body 13 and positioned below the synchronization assembly 6 and to the left of the high-speed scanning assembly 10.

[0031] The coaxial connection module 19 is a coaxial interface, and the fiber optic connection module 20 is a fiber optic interface. They are each connected to a UHF sensor for partial discharge detection via a coaxial cable and a fiber optic cable, respectively. An amplifier module is built into the sensor connection assembly 7, which filters and amplifies signals, after which the signals are transmitted to the high-speed scanning assembly 10.

[0032] The network assembly 8 includes a 5G module 21 and a WiFi module 22. The 5G module 21 and the WiFi module 22 are arranged adjacently on an inner surface of the box body 13 and positioned below the sensor terminal assembly 7 and to the left below the high-speed scanning assembly 10.

[0033] The signal transmission assembly 9 includes a USB module 23 and a network interface module 24. The USB module 23 and the network interface module 24 are arranged adjacently on an inner surface of the box body 13 and positioned below the network assembly 8. The USB module 23 and the network interface module 24 are used to connect to industrial computers, PC terminals, and other downstream control platforms, thereby enabling real-time display of partial discharge diagrams and location tracking.

[0034] The pulling structure 3 includes a carrying handle 25 arranged on a side surface of the box body 13 and positioned on the same side as the snap-in structure 14. The carrying handle 25 is positioned on the same side as the snap-in structure 14, which allows the box body 13 and the top lid 12 to be snapped together. The carrying handle 25 can be lifted directly.

[0035] The pulling structure 3 further comprises a pulling rod 26 and a sliding space 27. The sliding space 27 is formed in an outer surface of the box body 13 and positioned on a side surface adjacent to the carrying handle 25. The pulling rod 26 is slidably arranged in the sliding space 27 and can be pulled out of the sliding space 27 and, after being extended to a certain length, can be locked into the sliding space 27, thereby facilitating tilting of the equipment box 1 for its lifting and transport.

[0036] The box body 13 is additionally provided with two rollers 28 arranged at two ends of the same side surface of the box body 13 as the pull rod 26. When one end is lifted, the other end is slidably moved forward.

[0037] A pull handle 29 is provided on the pull rod 26 to facilitate comfortable pulling and carrying. Third embodiment:

[0038] The temperature-humidity monitoring assembly 30 includes: a temperature-humidity display device that displays the real-time on-site temperature and humidity, is connected to an industrial computer, and outputs the on-site facility temperature and humidity data.

Claims

[1] Device for locating partial discharges based on a high-speed scanning arrangement, characterized bythat it comprises an equipment box and a detection device arranged in the equipment box, wherein the equipment box is provided with a tensile structure and is designed to be slidable; wherein the detection device comprises a partial discharge detection arrangement, a power supply arrangement, a synchronization arrangement, a sensor connection arrangement, a network arrangement, and a signal transmission arrangement, wherein the power supply arrangement, the synchronization arrangement, the sensor connection arrangement, the network arrangement, and the signal transmission arrangement are arranged sequentially from top to bottom and positioned adjacent to a partial discharge detection arrangement; wherein the partial discharge detection arrangement comprises a high-speed scanning arrangement and a keyboard arranged one above the other in the equipment box;wherein a temperature and humidity monitoring arrangement is provided on the other side of the partial discharge detection arrangement opposite the power supply arrangement; [2] A high-speed scanning device for locating partial discharges according to claim 1, characterized by that the equipment box comprises an upper cover and a box body, wherein the upper cover is integrally and rotatably connected to one side of the box body and a snap structure is provided on the other side of the upper cover, which serves for fixed connection to the box body; wherein the partial discharge detection arrangement is arranged on an inner surface of the box body. [3] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized bythat the power supply arrangement comprises a power supply interface and a power switch, wherein the power supply interface and the power switch are arranged adjacent to an inner surface of the box body and positioned on the same side surface as the partial discharge detection arrangement. [4] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the synchronization arrangement comprises a plus synchronization module and a minus synchronization module arranged adjacent to an inner surface of the box body and positioned below the power supply arrangement. [5] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized bythat the sensor connection arrangement comprises a coaxial connection module and a fiber optic connection module arranged adjacent to an inner surface of the box body and positioned below the synchronization arrangement. [6] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the network arrangement comprises a 5G module and a WiFi module arranged adjacent to an inner surface of the box body and positioned below the sensor connection arrangement. [7] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the signal transmission arrangement comprises a USB module and a network interface module which are arranged adjacent to an inner surface of the box body and positioned below the network arrangement. [8] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the pulling structure comprises a carrying handle arranged on a side surface of the box body and positioned on the same side as the snap structure. [9] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the pulling structure further comprises a pulling rod and a sliding space, wherein the sliding space is arranged in an outer side surface of the box body; wherein the pulling rod is slidably arranged in the sliding space; wherein rollers are further provided on the box body, wherein two rollers are attached to one end of the box body and arranged away from the handle of the pulling rod; and wherein the pulling rod is provided with a pulling handle. [10] Partial discharge locating device based on a high-speed scanning arrangement according to claim 1, characterized by that the humidity monitoring arrangement comprises a temperature-humidity indicator arranged on an inner surface of the box body and located to the right of the high-speed scanning arrangement.

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