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Ceramic post insulator detection method based on vibrational acoustics

A technology of insulator detection and vibroacoustics, which is applied in the field of porcelain post insulator detection based on vibroacoustic method, can solve the problems of national economic loss, power grid outage, etc., and achieve the effect of wide detection range, high detection efficiency and clear defect judgment

Inactive Publication Date: 2017-01-11
YANCHENG POWER SUPPLY CO STATE GRID JIANGSU ELECTRIC POWER CO +2
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Problems solved by technology

For a long time, the power system has used the traditional periodic test method to test the porcelain post insulators of high-voltage equipment, but this test needs to be carried out during power outages. If the power outage cycle is not properly arranged, a large number of insulators will be operated in a critical limit state or even an over-limit state; and regular The power outage of the power grid will cause losses to the national economy

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  • Ceramic post insulator detection method based on vibrational acoustics
  • Ceramic post insulator detection method based on vibrational acoustics
  • Ceramic post insulator detection method based on vibrational acoustics

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Embodiment Construction

[0017] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0018] refer to figure 1 , the present invention proposes a method for detecting porcelain post insulators based on the vibroacoustic method:

[0019] Firstly, the detection system is designed, including the excitation source, signal receiving equipment and result analysis system. The excitation source is a random vibration exciter, the signal receiving equipment is used to record and store the response of the insulator to the excitation, and the result analysis system is used to analyze the detection results. software package; when in use, fix the bolt head of the insulating rod with the screw rod in the threaded hole of the instrument panel; then place the instrument close to the bottom flange of the insulator to ...

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Abstract

The invention discloses a ceramic post insulator detection method based on vibrational acoustics. The method comprises the steps of designing a detection system, wherein the detection system comprises an excitation source, a signal receiving device and a result analysis system, the excitation source is a randomly vibrating exciter, the signal receiving device is used for recording and storing responses of an insulator to excitation, and the result analysis system is used for analyzing a software package of detection results; fixing an insulating rod bolt head provided with a screw in a threaded hole of an instrument panel; moving an instrument closer to a bottom flange of the insulator to be detected, making a probe perpendicular to the bottom face of the flange as much as possible, and sustaining the flange with great force till the instrument prompts 'test ends'; transmitting detection data to a PC through a dedicated data line, displaying a vibration power spectral density assessment diagram of the ceramic post insulator with dedicated analysis software, and conducting analysis. By the adoption of the method, internal and external flaw conditions of a ceramic part can be detected in detail in the presence of uninterruptable power.

Description

technical field [0001] The invention relates to the technical field of insulator detection, in particular to a method for detecting porcelain post insulators based on a vibroacoustic method. Background technique [0002] Porcelain post insulators are important components of electrical equipment in power grids and power plants. Due to improper design, manufacture, installation, maintenance and overhaul, and the influence of harsh environment during operation, it is easy to cause failure and fracture of porcelain post insulators, endangering the safe operation of the power grid. Therefore, it is very important to strengthen the inspection and quality evaluation of in-service porcelain post insulators to ensure the safe, reliable and economical operation of the power grid. For a long time, the power system has used the traditional periodic test method to test the porcelain post insulators of high-voltage equipment, but this test needs to be carried out during power outages. If...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/44G01M7/02
CPCG01N29/44G01M7/00
Inventor 张庆富陆杨刘安宏何育
Owner YANCHENG POWER SUPPLY CO STATE GRID JIANGSU ELECTRIC POWER CO
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