Abnormal sound positioning method for electrical equipment

A technology of electrical equipment, positioning method

Pending Publication Date: 2021-08-03
PINGDINGSHAN POWER SUPPLY ELECTRIC POWER OF HENAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the invention is inconvenient to operate, and subsequent data processing is required, so it is imp

Method used

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  • Abnormal sound positioning method for electrical equipment
  • Abnormal sound positioning method for electrical equipment
  • Abnormal sound positioning method for electrical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1~2 As shown, a method for locating abnormal noise of electrical equipment includes the following steps:

[0032] S1: Fix the sound measuring instrument 1 for measuring the frequency and intensity of a specific sound to one end of the insulating rod 2, so that maintenance personnel can keep a safe distance from the equipment;

[0033] S2: When the abnormal sound of the electrical equipment 5 is heard during the inspection process, use the sound wave detector 4 to measure the sound frequency of the electrical equipment, filter out the abnormal sound frequency and record it as f 0 ;

[0034] S3: On the acoustic wave detector 4, adjust the measurement frequency to f 0 , only measure the intensity of the sound at that frequency;

[0035] S4: The maintenance personnel stand at the measuring point 7 outside the safety distance line 6, hold the insulating rod 2 with the sound measuring instrument 1 fixed on it, bring the sound measuring instrument 1 close to...

Embodiment 2

[0040] Such as Figure 3~5 As shown, a method for locating abnormal noise of electrical equipment includes the following steps:

[0041]S1: Fix the sound measuring instrument used to measure the frequency and intensity of a specific sound to one end of the insulating rod so that maintenance personnel can keep a safe distance from the equipment;

[0042] S2: When the abnormal sound of electrical equipment is heard during the inspection process, use a sound wave detector to measure the sound frequency of the electrical equipment, filter out the abnormal sound frequency and record it as f 0 ;

[0043] S3: On the acoustic wave detector, adjust the measurement frequency to f 0 , only measure the intensity of the sound at that frequency;

[0044] S4: The maintenance personnel stand at the measuring point outside the safety distance line, hold the insulating rod with the sound measuring instrument fixed, bring the sound measuring instrument close to the equipment under test, move ...

Embodiment 3

[0052] Such as Figure 6 As shown, the method for locating abnormal noise of electrical equipment in the embodiment of the present invention is different from the second embodiment in that: the control opening and closing part includes a rectangular hanging ring 19 arranged at the bottom of the connecting block 11, and is arranged at the bottom of the connecting block 11. The groove on the top surface of the connecting block two 12, and the pendant arranged in the groove, the pendant is fastened in the rectangular hanging ring.

[0053] The pendant includes a vertical bar 20, a wedge-shaped hanging head 21 and an electric telescopic rod 22. The wedge-shaped hanging head 21 is arranged at the upper end of the vertical bar 20. The top surface of the wedge-shaped hanging head 21 is an arc surface, and the vertical bar 20 The middle part is hinged to the inner walls of both sides of the groove through the shaft body, and the lower end of the vertical rod 20 is flexibly connected w...

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Abstract

The invention discloses an abnormal sound positioning method for electrical equipment and belongs to the technical field of operation and maintenance of a power system. The method comprises the following steps that: a sound measuring instrument for measuring the frequency and intensity of specific sound is fixed at one end of an insulating rod so as to keep a safe distance between a maintainer and the equipment; when the abnormal sound of the electrical equipment is heard in the inspection process, the sound frequency of the electrical equipment is measured by using a sound wave detector, and abnormal sound frequencies are filtered out; on the sound wave detector, only intensity measurement is performed on the sound at the frequencies; a maintainer stands at a measuring point outside a safe distance line, holds the insulating rod on which the sound measuring instrument is fixed by hand, enables the sound measuring instrument to approach the measured equipment and move back and forth near the equipment, and records the sound intensity measured at the moment as p; when the sound measuring instrument moves to a certain specific position at a certain moment, the intensity p of the sound is not increased any more, the maximum value pmax is obtained, it can be judged that abnormal sound is generated near the point, and the point is the potential fault point of the equipment. The method is easy and convenient to operate and can quickly position the abnormal sound position of the electrical equipment.

Description

technical field [0001] The invention relates to the technical field of power system operation and maintenance, in particular to a method for locating abnormal noises of electrical equipment. Background technique [0002] In recent years, my country's power system has developed rapidly, and more and more industries are increasingly dependent on power, so the requirements for system reliability are getting higher and higher. During the inspection process, you can judge whether the equipment is running normally by "seeing", "listening", "smelling", and "touching". Operation and maintenance personnel often hear abnormal sounds when patrolling the equipment area, and the process of hearing and identifying abnormal sounds is highly dependent on the experience of operation and maintenance, testing, and maintenance personnel. There are human subjective factors, and it is impossible to accurately locate the source of abnormal sounds. Accurate location can easily lead to misjudgment ...

Claims

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Application Information

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IPC IPC(8): G01S11/14
CPCG01S11/14
Inventor 裴继东张照真李超张克勇王冠瑞胡松杰耿新贾子昊靳耀珂艾晓雨
Owner PINGDINGSHAN POWER SUPPLY ELECTRIC POWER OF HENAN
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