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Prop porcelain insulator and porcelain bushing ultrasonic wave detecting method

A pillar ceramic insulator, pillar insulator technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, etc., can solve the problems of small sand and small gaps, achieve enhanced detection function, reduce instrument adjustment procedures, and prevent missed detection and misjudgment Effect

Active Publication Date: 2008-03-05
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The small-angle longitudinal wave probe detects the post porcelain insulator between the cast iron flange seat and the first porcelain skirt, but there are still a small number of post porcelain insulators in the field with sand between the cast iron flange seat and the first porcelain skirt. In the case of small grains and gaps, there is no detection area for small-angle longitudinal wave probes, so small-angle longitudinal wave probes cannot be used for detection

Method used

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  • Prop porcelain insulator and porcelain bushing ultrasonic wave detecting method
  • Prop porcelain insulator and porcelain bushing ultrasonic wave detecting method
  • Prop porcelain insulator and porcelain bushing ultrasonic wave detecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Flaw detection operation Porcelain insulator flaw detection is divided into three types according to the detection object: pillar porcelain insulator, porcelain sleeve, and small gap pillar. As shown in Figure 3.

[0103] This embodiment is for flaw detection of post insulators, and small-angle longitudinal wave probe 3 is used for flaw detection of post insulators

[0104] (1) Press the light touch power switch key 35 on the panel 66 of the pillar porcelain insulator and porcelain sleeve ultrasonic intelligent detector 1, open the pillar porcelain insulator and porcelain sleeve ultrasonic intelligent detector 1, and a start-up screen appears, as shown in Figure 1, press Press any key to enter the detection interface; in the submenu key 34 of the panel 66, press the pillar porcelain insulator key, namely the 1 key, to select the pillar insulator, as shown in Figure 13;

[0105] (2) Measure the sound velocity Insert the sound velocity probe 2 into the R socket of the pi...

Embodiment 2

[0115] This embodiment is for flaw detection of porcelain bushings.

[0116] (1) Press the light touch power switch key 35 on the panel 66 to turn on the pillar porcelain insulator and porcelain sleeve ultrasonic intelligent detector 1, and a start-up screen appears, as shown in Figure 1, press any key to enter the detection interface, as shown in Figure 13 ;

[0117] (2) Press the 2 key in the submenu key 34 of the panel 66 to select the porcelain sleeve and enter the porcelain sleeve detection interface;

[0118] (3) Insert the creeping wave probe 5 plug into the R jack of the tester 1, connect the creeping wave probe 5 with the pillar porcelain insulator and the porcelain sleeve ultrasonic intelligent detector 1; enter the porcelain sleeve detection interface, and the porcelain sleeve detection does not distinguish between high-strength porcelain Or ordinary porcelain, so the sound velocity measurement function is not set, the interface sound velocity value is 6000m / s by d...

Embodiment 3

[0124] This embodiment is for flaw detection of pillar porcelain insulators with small gaps.

[0125] (1) Press the light touch power switch key 35 on the panel 66 of the pillar porcelain insulator and porcelain sleeve ultrasonic intelligent detector 1, open the pillar porcelain insulator and porcelain sleeve ultrasonic intelligent detector 1, and a start-up screen appears, as shown in Figure 1; press Press any key to enter the detection interface, as shown in Figure 13; in the submenu key 34 on the panel 66, press the small gap pillar porcelain insulator key, that is, the 3 key, and select the small gap pillar insulator;

[0126] (2) Measure the sound velocity and enter the flaw detection interface of the small gap pillar insulator; insert the plug of the sound velocity measuring probe 2 into the R jack of the detector 1, connect the sound velocity measuring probe and the detector; input the actual perimeter of the small gap pillar insulator to be tested, Couple the sound vel...

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Abstract

The method comprises: 1) selecting the type of the insulator; 2) measuring the sound speed; 3) selecting the probe; 4) crank detection; 5) automatically tracing; 6) comparing the wave forms; 7) displaying the detection result. By making the intellectualized modification for the original supersonic detector, the invention enhances the detection function and reduces the program for adjusting the metering device.

Description

technical field [0001] The invention relates to a detection method for electric equipment, in particular to an ultrasonic detection method for pillar porcelain insulators and porcelain sleeves. Background technique [0002] High-voltage post porcelain insulators are an important component of the operation of power stations and substations, and their quality is crucial to the safe operation of the power grid. In recent years, there have been frequent accidents caused by the breakage of high-voltage pillar porcelain insulators. In mild cases, partial power outages have been caused on power grid lines, and in severe cases, large-scale power outages and even personal injury accidents have occurred, which have brought huge economic losses and social impacts on the power grid. At present, the ultrasonic testing method is used for high-voltage pillar porcelain insulators and porcelain bushings. Although the ultrasonic testing method can detect defects such as cracks, interlayers, b...

Claims

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Application Information

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IPC IPC(8): G01N29/07G01N29/06
Inventor 闫斌何喜梅邓大勇
Owner STATE GRID CORP OF CHINA
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