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Hand-hold GIS air chamber failure testing instrument

A gas chamber failure and detector technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problems of inconvenience of carrying, bulk, mass, low sensitivity, etc., and achieve the effects of easy replacement, small size, and convenient carrying.

Inactive Publication Date: 2011-11-16
BEIHANG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the electrical tests used at home and abroad are generally carried out in the state of power failure, and the detection rate of internal faults is very low; some units use SO 2 、H 2 S and HF colorimetric tube tests have low sensitivity and can only be used for qualitative or semi-quantitative detection. It is difficult to detect internal faults early, let alone comprehensive analysis and judgment.
However, some existing detectors on the market generally have problems such as huge volume and quality, inconvenient portability, and complicated operation.

Method used

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  • Hand-hold GIS air chamber failure testing instrument
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  • Hand-hold GIS air chamber failure testing instrument

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Embodiment Construction

[0029] For the specific implementation of the hand-held GIS gas chamber fault detector, see figure 1 with image 3 The hardware structure and the structural schematic diagram of the solenoid valve control unit are shown.

[0030] The hardware is based on ATMEL company ATmega128 series AVR single-chip microcomputer as the core, externally expanded data acquisition module, data display unit of test results, key query function unit, solenoid valve control unit and alarm unit, etc.

[0031] The data acquisition module adopts the most advanced sulfur dioxide sensor (model 4S) of the British City company, and the sampling accuracy is 0.1ppm. The detection result shows that the liquid crystal module is used, the button query unit uses ordinary buttons, the solenoid valve control unit uses miniature solenoid valves, and the alarm unit uses a buzzer.

[0032] When the detector is working, the main controller (AVR single-chip microcomputer) first sends a signal to the solenoid valve, ...

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Abstract

The invention provides a hand-held GIS air chamber failure monitor, which comprises a hardware structure and a software structure. The hardware structure comprises a data collecting module, a data processing unit, a data storage unit, a liquid crystal display unit, an electromagnetic valve control unit, an alarm indication unit, a press key operating system, and a power supply system. The software structure comprises data collection, data filtering, data storage, data display, and history data. By adopting high-speed and high-precision sampling technique and optimizing gas path mechanism, thehand-held GIS air chamber failure monitor has the advantages of novel structure, portability, light weight, and convenient application, and can be widely used for the GIS failure detection of electronic engineering.

Description

(1) Technical field: [0001] The invention provides a hand-held GIS (Gas Insulated Switchgear gas insulated combined electrical equipment) gas chamber fault detector, which relates to high-precision data collection, design of optimal software algorithm and design of automatic detection control unit, and belongs to fault diagnosis and detection device. (two) background technology: [0002] Today, the electrical equipment using sulfur hexafluoride (SF6) as the insulating medium mainly includes circuit breakers, transformers, cables, GIS stations, etc. More than half of the equipment with 220V voltage level is insulated with SF6 gas; nearly 100% of the equipment with 330V voltage level is insulated with SF6 gas; In urban network transformation, SF6 equipment has become the first choice; therefore, it is increasingly important to measure SF6 purity, humidity and leakage in time, analyze the content of SF6 gas decomposition products, make fault judgments and find fault locations....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 胡晓光宁鑫杨正华王惠敏
Owner BEIHANG UNIV
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