Search

CN-224231889-U - Partial discharge multisource signal detection system

CN224231889UCN 224231889 UCN224231889 UCN 224231889UCN-224231889-U

Abstract

The utility model relates to the technical field of partial discharge detection, and aims to solve the problem that vibration and sound emission signals cannot be monitored in partial discharge detection at the same time in the prior art, and provides a partial discharge multi-source signal detection system which comprises a detection device, an amplifying device, a collecting device and an analyzing device which are connected in sequence; the detection device is provided with a shell component, a detection component, a communication component, a display component and a fixing component, wherein the detection component is arranged in the shell component and is connected with the communication component, the communication component is arranged on the outer side wall of the shell component, the display component is arranged on the top surface of the shell component, and the fixing component is arranged at the bottom of the shell component. The utility model has the beneficial effect of being capable of monitoring vibration and sound emission signals in partial discharge detection at the same time.

Inventors

  • XIAO JIANGTAO
  • ZHANG ZHAOCHUANG
  • QU WENFENG
  • HUANG YU

Assignees

  • 三峡金沙江川云水电开发有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (10)

  1. 1. A partial discharge multisource signal detection system, characterized by: comprises a detection device (1), an amplifying device (2), a collection device (3) and an analysis device (4) which are connected in sequence; The detection device (1) is provided with a shell component (5), a detection component (6), a communication component (7), a display component (8) and a fixing component (9), wherein the detection component (6) is arranged in the shell component (5) and is connected with the communication component (7), the communication component (7) is arranged on the outer side wall of the shell component (5), the display component (8) is arranged on the top surface of the shell component (5), and the fixing component (9) is arranged at the bottom of the shell component (5).
  2. 2. A partial discharge multisource signal detection system according to claim 1, wherein: the detection assembly (6) is an acoustic emission vibration module, and the acoustic emission vibration module is electrically connected with the communication assembly (7).
  3. 3. A partial discharge multisource signal detection system according to claim 1, wherein: The acquisition device (3) is provided with an acoustic emission acquisition module (10) and a storage module (11) which are connected, and the acoustic emission acquisition module (10) is electrically connected with the amplifying device (2).
  4. 4. A partial discharge multisource signal detection system according to claim 1, wherein: The analysis device (4) has an oscilloscope (12) and an analysis host (13).
  5. 5. A partial discharge multisource signal detection system according to claim 1, wherein: The shell assembly (5) is of a cylindrical structure with a hollow inside, a containing cavity (14) is formed in the bottom opening of the shell assembly (5), and the containing cavity (14) is connected with the fixing assembly (9); the outer side surface of the shell component (5) is provided with a connecting hole (15) connected with the communication component (7).
  6. 6. A partial discharge multisource signal detection system according to claim 1, wherein: The communication assembly (7) has a ground line and a signal line for transmitting sound and vibration signals.
  7. 7. A partial discharge multisource signal detection system according to claim 1, wherein: The display assembly (8) has a display screen (16), the display screen (16) being arranged on the top surface of the housing assembly (5).
  8. 8. A partial discharge multisource signal detection system according to claim 1, wherein: the fixing assembly (9) is an insulating base (17), and a sucker is arranged at the bottom of the insulating base (17).
  9. 9. A partial discharge multisource signal detection system according to any of claims 1-8, wherein: The amplifying device (2) is arranged outside the detecting device (1) and comprises a noise reduction cable (18), an external amplifier (19) and a coaxial cable (20) which are sequentially connected, wherein the noise reduction cable (18) is electrically connected with the communication assembly (7), and the coaxial cable (20) is electrically connected with the collecting device (3).
  10. 10. A partial discharge multisource signal detection system according to any of claims 1-8, wherein: The amplifying device (2) is a built-in amplifier (21), and the built-in amplifier (21) is arranged inside the shell assembly (5) and is electrically connected with the communication assembly (7).

Description

Partial discharge multisource signal detection system Technical Field The utility model relates to the technical field of partial discharge detection, in particular to a partial discharge multi-source signal detection system. Background In the operation of a power system, the safety and stability of the power equipment are of great importance, and the partial discharge detection technology is used as a key means for monitoring the state of the power equipment, so that the tiny discharge phenomenon inside the equipment can be captured sharply, and maintenance measures can be taken in time through early warning, thereby effectively preventing equipment faults and remarkably prolonging the service life of the equipment. The traditional partial discharge detection method is mainly an electrical method, wherein a pulse current method is widely applied by virtue of the characteristics of simple principle and convenient operation, and the method judges whether a discharge event occurs or not by detecting a pulse current signal generated by partial discharge. However, in practical application, the method has obvious defects that on one hand, the positioning accuracy of the power equipment to a discharge source is limited due to the complex internal structure and more electromagnetic interference of the power equipment, and the discharge position is difficult to accurately determine, and on the other hand, in the aspect of dynamic monitoring of the discharge process, the pulse current method can only obtain limited discharge parameters, can not completely present the dynamic change of the discharge process, and is difficult to meet the requirement of the refined operation and maintenance of the power equipment. The acoustic emission technology is based on the principle that elastic waves are generated when the material is internally defective or deformed, good application effects are obtained in the fields of material science, structural health monitoring and the like, damage conditions in the material can be effectively identified through receiving and analyzing elastic wave signals, but in a partial discharge detection scene, the existing acoustic emission sensor has mostly single functions, namely, only vibration signal monitoring or acoustic emission signal monitoring can be realized, vibration signals and acoustic emission signals generated in the partial discharge process cannot be simultaneously acquired, so that the partial discharge phenomenon is difficult to comprehensively analyze from multiple dimensions, the accuracy and reliability of partial discharge detection are greatly limited, and the actual requirements of partial discharge detection of power equipment cannot be met. Disclosure of utility model The utility model aims to provide a partial discharge multi-source signal detection system so as to solve the problem that vibration and sound emission signals cannot be monitored in partial discharge detection at the same time in the prior art. Embodiments of the present utility model are implemented as follows: the embodiment of the utility model provides a partial discharge multisource signal detection system which comprises a detection device, an amplifying device, a collection device and an analysis device which are connected in sequence; The detection device comprises a shell component, a detection component, a communication component, a display component and a fixing component, wherein the detection component is arranged in the shell component and is connected with the communication component, the communication component is arranged on the outer side wall of the shell component, the display component is arranged on the top surface of the shell component, and the fixing component is arranged at the bottom of the shell component. When the device is used, the fixed component at the bottom of the shell component adsorbs the detection device on electrical equipment, the detection component detects and collects data on the electrical equipment through the shell component, the detection component, the communication component, the display component and the fixed component, the data is amplified and noise-reduced by the built-in amplifier of the amplifying device or the noise-reducing cable, the external amplifier and the coaxial cable, noise-reducing filtering signals are transmitted to the collecting device and stored, the analyzing device analyzes the signals after receiving the signals, and an analysis completion worker can know the type of partial discharge, so that accurate positioning is conveniently realized, and faults are avoided. According to the partial discharge multi-source signal detection system disclosed by the embodiment, as the detection device is used for collecting sound and vibration signals, the amplification device is used for amplifying and noise reduction filtering signals, the signals are transmitted to the collection device and stored, and the analysis device is used for receivin