Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system

A technology of power system and analysis device, which is applied in the direction of testing dielectric strength, etc., can solve the problems of material equipment damage, misjudgment, waste of manpower, etc., and achieve the effect of avoiding failure and interference, avoiding induced electrical interference, and saving testing costs

Inactive Publication Date: 2015-03-25
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

If there are many incoming and outgoing lines and intervals for the withstand voltage test after the GIS is segmented, and non-self-recovery discharge or breakdown occurs during the test, it wil

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  • Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system
  • Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system
  • Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system

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Embodiment Construction

[0030] Such as figure 1 , figure 2 The ultrasonic analysis device used for GIS breakdown positioning in the power system shown in the figure, the device includes an ultrasonic sensor 1, a signal amplification processor 2, a data analysis module 3, a display 4, a keyboard 5 and a signal indicator light 6, and the output terminal of the ultrasonic sensor 1 It is connected with the input end of the signal amplification processor 2 , the output end of the signal amplification processor 2 is connected with the data analysis module 3 , and the display 4 , the keyboard 5 , and the signal indicator light 6 are all connected with the data analysis module 3 .

[0031] Ultrasonic sensor 1 is used to receive the ultrasonic signal generated by the breakdown discharge of GIS in the power system during the withstand voltage test or lightning impact test or during operation, and convert the received ultrasonic signal into an electrical signal output through analog-to-digital conversion, and ...

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Abstract

The invention discloses an ultrasonic wave analysis device and system for GIS breakdown positioning in an electric system. The device comprises an ultrasonic sensor, a signal amplification processor, a data analysis module, a display, a keyboard and a signal indication lamp. The ultrasonic sensor is connected with the signal amplification processor, the signal amplification processor is connected with the data analysis module, and the display, the keyboard and the signal indication lamp are all connected with the data analysis module. The ultrasonic sensor is used for receiving ultrasonic signals generated by GIS breakdown discharge in the electric system, and the ultrasonic signals are transmitted to the data analysis module after being amplified in a multistage mode and filtered and tuned by the signal amplification processor. The data analysis module analyzes data and obtains breakdown data, and then captures data values and the moment corresponding to GIS breakdown. The device can detect breakdown discharge portions of GIS equipment. The invention simultaneously discloses the system being composed of a plurality of independent ultrasonic wave analysis devices.

Description

technical field [0001] The invention relates to detection and analysis equipment for electrical equipment in a power system, in particular to an ultrasonic analysis device and system for GIS breakdown positioning in the power system. Background technique [0002] Gas Insulated Switchgear (GIS) has the characteristics of high insulation, compact structure, small footprint, wide adaptability, and high reliability. It has been widely used in power plants and high-voltage substations in power systems. However, during the manufacturing and assembly process of GIS equipment, some small defects are often left inside the GIS due to problems such as technology, such as metal particles, insulating air gaps, etc. These defects may cause partial discharge during the operation of the GIS and further cause Insulation accident. [0003] Although GIS must pass strict routine test items one by one when it leaves the factory, it is still necessary to connect the relevant transport units on s...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 王增彬吕鸿章啸饶章权彭向阳林春耀卢启付李兴旺唐瑛吴吉王流火
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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