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Non-contact GIS vibration fault diagnosis method and device

A fault diagnosis, non-contact technology, used in measuring devices, circuit breaker testing, instruments, etc., can solve the problems that the sensors cannot be installed on the equipment, the connection of the acquisition system is complicated, and the number of sensors is large, so as to achieve strong environmental adaptation. performance, wide measuring range, high degree of automation

Pending Publication Date: 2021-12-03
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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Problems solved by technology

When measuring large-scale equipment, in order to ensure the integrity and reliability of data collection, the number of sensors is required to be large, the test process is more cumbersome, and sensor-based measurement is not good in terms of spatial resolution
[0005] In addition, in the traditional vibration measurement process, the installation of the sensor and the acquisition de

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  • Non-contact GIS vibration fault diagnosis method and device
  • Non-contact GIS vibration fault diagnosis method and device
  • Non-contact GIS vibration fault diagnosis method and device

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Experimental program
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Embodiment

[0076] Check the site GIS

[0077] First, set up a high-speed camera 1 in the site, and use the high-speed camera 1 to record the video during the operation of the selected equipment.

[0078] Utilize processor 2 to carry out preprocessing to the vibration video of acquisition, then carry out image motion capture to obtain vibration signal data again, refer to image 3 .

[0079] Then extract the characteristic value of the vibration signal data, obtain the OFC value, compare it with the threshold value, and carry out fault diagnosis. Figure 4 .

[0080] Put the diagnosis result on the display screen 3, refer to Figure 5 .

[0081] To sum up, the video during the operation of the equipment is recorded by the high-speed camera 1, and then the acquired video is processed by the processor 2, the feature value is extracted, the OFC value is obtained, and the fault diagnosis is performed with the threshold value, and the diagnosis result is obtained and put into the On the d...

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Abstract

The invention discloses a non-contact GIS vibration fault diagnosis method and device, and relates to the technical field of power industry equipment fault diagnosis, and the device comprises a high-speed camera, a processor and a display screen. According to the invention, non-contact measurement is adopted, so that the method has the advantages of no load effect in a measurement mode and no damage to a test object; the device has high environmental adaptability, compared with traditional GIS measurement, the visual measurement method is not interfered by the electromagnetic environment, the flexibility of the shooting distance of the camera enables the measurement work to be achieved in the severe environment, and in addition, the inspection type device is convenient to move and carry; the measurement range is wide, signals with higher frequency can be analyzed by improving the shooting frame frequency, and measurement and analysis of equipment with different scales can be realized by adjusting parameters of the camera; and the device is high in automation degree, collected videos can be analyzed on the arithmetic processor, signals can be extracted automatically, the working process is stable, and setting is simple.

Description

technical field [0001] The invention relates to the technical field of equipment fault diagnosis in the electric power industry, and more specifically relates to a non-contact GIS vibration fault diagnosis method and device. Background technique [0002] The traditional GIS fault diagnosis method has limitations, cannot find early faults, and lags behind in troubleshooting. If you want to implement troubleshooting by means of regular inspections, frequent inspections will disturb the work of GIS and affect its service life. [0003] At present, the fault diagnosis method based on vibration measurement is also applied in GIS condition monitoring, but the measurement process is the contact measurement using acceleration sensor or strain sensor. For the vibration signal collection of large equipment, it is difficult, costly, and time-consuming to use sensors. [0004] At present, in the GIS fault diagnosis method based on vibration measurement, the vibration signal acquisitio...

Claims

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Application Information

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IPC IPC(8): G01R31/327G01H17/00
CPCG01R31/3275G01H17/00
Inventor 刘咏飞赵科杨景刚张量高山陈少波胡成博李洪涛腾云李玉杰张照辉徐阳肖焓艳马径坦曹昆
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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