Partial discharge positioning device based on high-speed sampling assembly

Abstract

According to the partial discharge positioning device based on the high-speed sampling assembly, the high-speed sampling assembly and the keyboard are vertically arranged in the equipment box, and the high-speed sampling assembly is integrated into an ultrahigh-frequency partial discharge detection system, so that the signal waveform can be displayed in real time, and the time characteristic of a partial discharge event can be accurately captured; the partial discharge monitoring system has the advantages of being capable of capturing electromagnetic wave signals of the UHF frequency band, recording, analyzing and storing pulse current signals, providing more comprehensive diagnosis information, being high in anti-interference capacity, facilitating rapid identification and analysis of partial discharge phenomena, and facilitating in-depth analysis, recording and storage after an event, including rising edges, duration and amplitudes of discharge pulses, and being capable of not only capturing electromagnetic wave signals of the UHF frequency band but also recording, analyzing and storing pulse current signals and providing more comprehensive diagnosis information.

Description

Technical Field

[0001] The utility model belongs to the technical field of partial discharge detection equipment, and relates to a partial discharge positioning device based on a high-speed sampling component. Background Art

[0002] Partial discharge is an important indicator of the insulation deterioration of power equipment, and its detection is crucial for preventing equipment failures and extending the service life of equipment. At present, there are many detection methods for partial discharge, including pulse current method, ultrasonic method, optical measurement method, radio frequency detection method, and chemical method, etc. Among them, the high-speed sampling detection method has attracted attention because it can detect partial discharges inside equipment such as.

[0003] The high-speed sampling detection method has advantages in partial discharge detection, but there are also some disadvantages and limitations: Frequency band limitation: Because the oscilloscope has stronger functions relative to high-speed sampling, but it is not as convenient as the high-speed sampling component. At the same time, since the high-speed sampling component and the oscilloscope cannot coexist in the same device, for example, environmental interference: UHF sensors are easily affected by the on-site electromagnetic environment, such as radio, mobile communication, etc., which may lead to false alarms or missed alarms. Therefore, the high-speed sampling component cannot be integrated with the oscilloscope in the same device. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a partial discharge positioning device based on a high-speed sampling component, which is used to solve the problems of low detection accuracy and inaccurate signal spectrum recognition in the detection of ultra-high frequency partial discharge.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: A partial discharge positioning device based on a high-speed sampling component, which includes an equipment box and a detection device arranged in the equipment box. The equipment box is provided with a lifting structure and can slide; the detection device includes a partial discharge detection component, a power supply component, a synchronization component, a sensor connection component, a network component, and a signal transmission component. The power supply component, the synchronization component, the sensor connection component, the network component, and the signal transmission component are arranged from top to bottom and are adjacent to the partial discharge component; the partial discharge detection component includes a high-speed sampling component and a keyboard, and the high-speed sampling component and the keyboard are arranged up and down in the equipment box; the temperature and humidity monitoring component is arranged on the opposite side of the partial discharge component and the power supply component.

[0006] The equipment box includes an upper cover and a box body. The upper cover is integrally and rotatably connected to one side of the box body, and a buckle structure is arranged on the other side of the upper cover for fixedly connecting with the box body; the partial discharge detection component is arranged on the inner surface of the box body.

[0007] The power supply component includes a power interface and a power switch. The power interface and the power switch are adjacent to each other and arranged on the inner surface of the box body, and are arranged on the same side as the partial discharge detection component.

[0008] The synchronization component includes a positive synchronization module and a negative synchronization module. The positive synchronization module and the negative synchronization module are adjacently arranged on the inner surface of the box body and are arranged under the power supply component.

[0009] The sensor connection component includes a coaxial connection module and an optical fiber connection module. The coaxial connection module and the optical fiber connection module are adjacently arranged on the inner surface of the box body and are arranged under the synchronization component.

[0010] The network component includes a 5G module and a WiFi module. The 5G module and the WiFi module are adjacently arranged on the inner surface of the box body and are arranged under the sensor connection component.

[0011] The signal transmission component includes a USB module and a network port module. The USB module and the network port module are adjacently arranged on the inner surface of the box body and are arranged under the network component.

[0012] The lifting structure includes a handle. The handle is arranged on one side surface of the box body and is arranged on the same side as the buckle structure.

[0013] The lifting structure further includes a lifting rod and a sliding cavity. The sliding cavity is arranged inside the outer side surface of the box body and is arranged adjacent to the side surface of the handle. The lifting rod is slidably arranged in the sliding cavity; a pulley is also arranged on the box body. The pulley and the lifting rod are respectively arranged at both ends of the same side surface of the box body; a handle is arranged on the lifting rod.

[0014] The humidity monitoring component includes a temperature and humidity display. The temperature and humidity display is arranged on the inner surface of the box body and is located on the right side of the high-speed sampling component.

[0015] The main beneficial effects of the present utility model are as follows:

[0016] The high-speed sampling component is integrated into the ultra-high frequency partial discharge detection system. The high-speed sampling component has high time resolution, can display the signal waveform in real time, and accurately capture the time characteristics of partial discharge events, including the rising edge, duration, and amplitude of the discharge pulse. This enables the system to not only capture the electromagnetic wave signals in the UHF band but also record, analyze, and save the pulse current signals, providing more comprehensive diagnostic information, with strong anti-interference ability, facilitating on-site engineers to quickly identify and analyze partial discharge phenomena, and also facilitating in-depth analysis and record preservation afterwards; it provides multi-channel measurement and can simultaneously access multiple UHF sensors, increasing the detection coverage. Description of the Drawings

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 is the schematic diagram of the handle structure of the present utility model;

[0020] Figure 3 Schematic diagram of the structure of the detection device of the present utility model;

[0021] Figure 4 Front view of the internal structure of the present utility model;

[0022] In the figure: 1 - equipment box; 2 - detection device; 3 - lifting structure; 4 - partial discharge detection component; 5 - power supply component; 6 - synchronization component; 7 - sensor connection component; 8 - network component; 9 - signal transmission component; 10 - high-speed sampling component; 11 - keyboard; 12 - upper cover; 13 - box body; 14 - buckle structure; 15 - power supply interface; 16 - power switch; 17 - positive synchronization module; 18 - negative synchronization module; 19 - coaxial connection module; 20 - fiber optic connection module; 21 - 5G module; 22 - WIFI module; 23 - USB module; 24 - network port module; 25 - handle; 26 - lifting rod; 27 - sliding cavity; 28 - pulley; 29 - handle; 30 - temperature and humidity detection module. Specific embodiments

[0023] As in Figures 1 to 4 A partial discharge positioning device based on a high-speed sampling component, which includes an equipment box and a detection device arranged in the equipment box. The equipment box is provided with a lifting structure and can slide; the detection device includes a partial discharge detection component, a power supply component, a synchronization component, a sensor connection component, a network component and a signal transmission component. The power supply component, the synchronization component, the sensor connection component, the network component and the signal transmission component are arranged from top to bottom and are adjacent to the partial discharge component; the partial discharge detection component includes a high-speed sampling component and a keyboard, and the high-speed sampling component and the keyboard are arranged up and down in the equipment box; the temperature and humidity monitoring component is arranged on the opposite side of the partial discharge component and the power supply component.

[0024] In a preferred solution, the equipment box includes an upper cover and a box body. The upper cover is integrally rotatably connected to one side of the box body, and a buckle structure is arranged on the other side of the upper cover for fixedly connecting to the box body; the partial discharge detection component is arranged on the inner surface of the box body.

[0025] In a preferred solution, the power supply component includes a power supply interface and a power switch. The power supply interface and the power switch are adjacent and arranged on the inner surface of the box body, and are arranged on the same side as the partial discharge detection component.

[0026] In a preferred solution, the synchronization component includes a positive synchronization module and a negative synchronization module. The positive synchronization module and the negative synchronization module are adjacent and arranged on the inner surface of the box body, and are arranged under the power supply component.

[0027] In a preferred solution, the sensor connection component includes a coaxial connection module and a fiber optic connection module. The coaxial connection module and the fiber optic connection module are adjacent and arranged on the inner surface of the box body, and are arranged under the synchronization component.

[0028] In a preferred embodiment, the network component includes a 5G module and a WIFI module. The 5G module and the WIFI module are adjacently arranged on the inner surface of the box body and are arranged below the sensor connection component.

[0029] In a preferred embodiment, the signal transmission component includes a USB module and a network port module. The USB module and the network port module are adjacently arranged on the inner surface of the box body and are arranged below the network component.

[0030] In a preferred embodiment, the lifting structure includes a handle. The handle is arranged on one side surface of the box body and is arranged on the same side as the buckle structure.

[0031] In a preferred embodiment, the lifting structure further includes a lifting rod and a sliding cavity. The sliding cavity is arranged inside the outer side surface of the box body and is arranged adjacent to the side surface of the handle. The lifting rod is slidably arranged in the sliding cavity; a pulley is also arranged on the box body, and the pulley and the lifting rod are respectively arranged at both ends of the same side surface of the box body; a handle is arranged on the lifting rod.

[0032] In a preferred embodiment, the humidity monitoring component includes a temperature and humidity display. The temperature and humidity display is arranged on the inner surface of the box body and is located on the right side of the high-speed sampling component.

[0033] Embodiment 1

[0034] The equipment box 1 and the detection device 2 arranged inside the equipment box 1. The equipment box 1 is provided with a lifting structure 3 and can move slidably. The equipment box 1 is used for installing and storing the detection device 2, and the lifting structure 3 facilitates carrying and moving. The detection device 2 is used for measuring the on-site partial discharge signal;

[0035] The detection device 2 includes: a partial discharge detection component 4, which transmits the partial discharge signal collected by the UHF sensor to the high-speed sampling component 10 for observing and analyzing the weak pulse signal generated by the partial discharge; a power supply component 5 for supplying power to other modules; a synchronization component 6, which is connected to the transformer to achieve synchronization during the signal collection process of the UHF sensor; a sensor connection component 7 for connecting the UHF sensor and amplifying and filtering the collected partial discharge signal; a network component 8 with built-in 5G and WIFI communication methods; a signal transmission component 9 for connecting to a backend signal processing platform such as an industrial computer; the power supply component 5, the synchronization component 6, the sensor connection component 7, the network component 8, and the signal transmission component 9 are arranged from top to bottom and adjacent to the left and right of the partial discharge component, and the temperature and humidity monitoring component 30 is arranged on the right side of the high-speed sampling component 10;

[0036] The partial discharge detection component 4 includes: a high-speed sampling component 10 and a keyboard 11. The high-speed sampling component 10 and the keyboard 11 are arranged vertically in the equipment box 1. The screen of the high-speed sampling component 10 is placed on the surface of the box body 13, and the main body is arranged in the box body 13. The high-speed sampling component 10 identifies the phase at which the discharge occurs, measures the pulse waveform and the number of discharges, observes the characteristics of the partial discharge, and infers the characteristics and possible causes of the discharge.

[0037] The partial discharge detection component 4 also includes an industrial control computer, which is connected through USB or network port. The high-speed sampling component 10 is configured through the industrial control computer, and parameters such as appropriate sampling rate, bandwidth, time, and voltage range are set to capture the weak signals generated by the partial discharge, and the PRPD and PRPS maps of the partial discharge can be displayed in real time to identify the partial discharge signal category, so as to locate the position of the partial discharge source.

[0038] Embodiment 2

[0039] The equipment box 1 includes: an upper cover 12 and a box body 13. The upper cover 12 is integrally and rotatably connected to one side of the box body 13. A buckle structure 14 is arranged on the other side of the upper cover 12 for fixedly connecting with the box body 13. The box body 13 and the upper cover 12 are integrally and hermetically connected. The upper cover 12 is opened through the buckle structure 14, and the detection device 2 is arranged on the box body 13, and the upper cover 12 is flipped to the other side.

[0040] The power supply component 5 includes: a power interface 15, which is connected to 220v to supply power to the equipment, and a power switch 16, which turns on or off the operation of the equipment; the power interface 15 and the power switch 16 are arranged vertically on the inner surface of the box body 13 and are arranged on the left side of the high-speed sampling component 10.

[0041] The synchronization component 6 includes: a positive synchronization module 17 and a negative synchronization module 18. The positive synchronization module 17 is a positive signal synchronization interface, and the negative synchronization module 18 is a negative synchronization interface. The positive signal synchronization interface and the negative synchronization interface are arranged under the power supply component 5 and on the left side of the high-speed sampling component 10, and are connected to the on-site transformer to obtain the on-site synchronization signal, accurately locate the occurrence point of the discharge time, ensure that the data of different sensors can be obtained at the same time in the high-speed sampling component 10, and perform signal map detection to improve the recognition accuracy.

[0042] The sensor connection component 7 includes: a coaxial connection module 19 and an optical fiber connection module 20. The coaxial connection module 19 and the optical fiber connection module 20 are arranged adjacent to each other on the inner surface of the box body 13, and are arranged under the synchronization component 6 and on the left side of the high-speed sampling component 10.

[0043] The coaxial connection module 19 is a coaxial interface, and the optical fiber connection module 20 is an optical fiber interface. They are respectively connected to the UHF sensor through a coaxial cable and an optical fiber for partial discharge detection. The sensor connection component 7 is built-in with an amplification module to filter and amplify the signal, and then further transmit the signal to the high-speed sampling component 10.

[0044] The network component 8 includes: a 5G module 21 and a WiFi module 22. The 5G module 21 and the WiFi module 22 are arranged adjacent to each other on the inner surface of the box body 13, and are arranged under the sensor connection component 7 and on the lower left side of the high-speed sampling component 10.

[0045] The signal transmission component 9 includes: a USB module 23 and a network port module 24. The USB module 23 and the network port module 24 are arranged adjacent to each other on the inner surface of the box body 13, and are arranged under the network component 8. The USB module 23 and the network port module 24 are used to connect to the back-end control platforms such as industrial control computers and PC terminals, facilitating the real-time display of partial discharge patterns and positioning.

[0046] The lifting structure 3 includes: a handle 25. The handle 25 is arranged on one side surface of the box body 13 and on the same side as the buckle structure 14. The handle 25 is arranged on the same side as the buckle structure 14. The buckle structure 14 buckles the box body 13 and the upper cover 12, and the handle 25 can be directly lifted.

[0047] The lifting structure 3 further includes: a lifting rod 26 and a sliding cavity 27. The sliding cavity 27 is arranged inside the outer side surface of the box body 13 and adjacent to the side surface of the handle 25. The lifting rod 26 is slidably arranged in the sliding cavity 27. The lifting rod 26 can be pulled out from the sliding cavity 27 and stuck in the sliding cavity 27 after extending a certain distance, facilitating the tilting and moving of the equipment box 1.

[0048] Two pulleys 28 are further arranged on the box body 13. The two pulleys 28 and the lifting rod 26 are respectively arranged at both ends of the same side surface of the box body 13, and one end is lifted and the other end slides forward.

[0049] A handle 29 is arranged on the lifting rod 26, which is convenient for pulling and carrying.

[0050] Embodiment 3

[0051] The temperature and humidity monitoring component 30 includes: a temperature and humidity display instrument. The temperature and humidity display instrument displays the on-site real-time temperature and humidity. The temperature and humidity display instrument is connected to the industrial control computer to output the on-site equipment temperature and humidity data.

[0052] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations to the present utility model. The embodiments in this application and the features in the embodiments can be arbitrarily combined with each other without conflict. The protection scope of the present utility model should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A local discharge locating device based on a high-speed sampling component, characterized in that: It includes an equipment box and a detection device arranged in the equipment box, the equipment box is provided with a lifting structure and can slide; the detection device includes a partial discharge detection component, a power supply component, a synchronization component, a sensor connection component, a network component and a signal transmission component, the power supply component, the synchronization component, the sensor connection component, the network component and the signal transmission component are arranged from top to bottom and are arranged adjacent to the partial discharge component; the partial discharge detection component includes a high-speed sampling component and a keyboard, the high-speed sampling component and the keyboard are arranged up and down in the equipment box; the temperature and humidity monitoring component is arranged on the other side of the partial discharge component opposite to the power supply component.

2. The local discharge locating device based on the high-speed sampling component according to claim 1 is characterized in that: The equipment box comprises an upper cover and a box body, wherein the upper cover is integrally rotatably connected to one side of the box body, and a buckle structure is arranged on the other side of the upper cover for fixed connection with the box body; the partial discharge detection component is arranged on the inner surface of the box body.

3. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The power supply component includes a power supply interface and a power switch, which are adjacently arranged on the inner surface of the box body and on the same side as the partial discharge detection component.

4. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The synchronization component comprises a positive synchronization module and a negative synchronization module, and the positive synchronization module and the negative synchronization module are adjacently arranged on the inner surface of the box body and are arranged under the power supply component.

5. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The sensor connection component comprises a coaxial connection module and an optical fiber connection module, and the coaxial connection module and the optical fiber connection module are adjacently arranged on the inner surface of the box body and are arranged under the synchronization component.

6. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The network component includes a 5G module and a WIFi module, and the 5G module and the WIFi module are adjacently arranged on the inner surface of the box body and under the sensor connection component.

7. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The signal transmission component includes a USB module and a network port module, and the USB module and the network port module are adjacently arranged on the inner surface of the box and are arranged under the network component.

8. The local discharge locating device based on a high-speed sampling component according to claim 1 is characterized in that: The lifting structure comprises a handle, which is arranged on one side of the box body and on the same side as the buckle structure.

9. The local discharge locating device based on a high-speed sampling component according to claim 1, characterized in that: The lifting structure also includes a lifting rod and a sliding cavity. The sliding cavity is arranged on the inner side surface of the box body and on the side adjacent to the handle. The lifting rod is slidably arranged in the sliding cavity. A pulley is also arranged on the box body. The pulley and the lifting rod are respectively arranged at both ends of the same side surface of the box body. The lifting rod is provided with a handle.

10. The local discharge locating device based on a high-speed sampling component according to claim 1, characterized in that: The humidity monitoring component includes a temperature and humidity display, which is arranged on the inner surface of the box body and on the right side of the high-speed sampling component.

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