Device and method for live detection of vacuum degree in circuit breaker interrupter

A technology of live detection and arc extinguishing chamber, which is applied in the direction of high-voltage air circuit breakers, circuits, electric switches, etc., can solve the problems of low precision, poor anti-interference ability and stability, and high cost, and achieve fast imaging speed, low price, and portable convenient effect

Active Publication Date: 2021-03-23
YUXI POWER SUPPLY BUREAU OF YUNNAN POWER GRID
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Problems solved by technology

[0003] The vacuum degree off-line detection method has the advantages of relatively simple detection equipment, high accuracy, high cost performance, good flexibility, and convenient operation. It has a wide range of applications in the field of vacuum degree detection, and the technology is mature. Inconvenience has become the most important factor restricting the development of this type of method
[0004] The electrified detection method of vacuum degree can detect the degree of vacuum in real time and detect the deterioration of the degree of vacuum in time, but the current method has problems such as low precision, high cost, poor anti-interference ability and stability, and most of them are limited to laboratory applications , has not been widely used

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  • Device and method for live detection of vacuum degree in circuit breaker interrupter

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[0028] The present invention will be further described in detail below in conjunction with the examples.

[0029] Those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be considered as limiting the scope of the present invention. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. The materials or equipment used are not indicated by the manufacturer, and they are all conventional products that can be obtained through purchase.

[0030] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said feature...

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Abstract

The invention relates to a circuit breaker arc extinguishing chamber vacuum degree live detection device and method, which belong to the technical field of power system electrical equipment defect detection. The device comprises a He-Ne laser, a silicon wafer, a first focusing device, a chopper, a second focusing device, a third focusing device, a first plane mirror, a second plane mirror, a fifthfocusing device, a fourth focusing device and a pyroelectric infrared probe. The detection device can realize normalization of vacuum degree maintenance of a vacuum circuit breaker, timely and reliably discovers potential safety hazards, ensures the safety of a system, and has the advantages of low price, high imaging speed, convenience in carrying, stable test and the like.

Description

technical field [0001] The invention belongs to the technical field of defect detection of electrical equipment in a power system, and in particular relates to a device and method for detecting vacuum degree of liveness in an arc extinguishing chamber of a circuit breaker. Background technique [0002] Vacuum circuit breakers use vacuum as the arc-extinguishing medium, which has the advantages of strong breaking capacity, long electrical life, no arc exposure and reliable operation. Compared with oil medium and SF6, the vacuum medium has no danger of fire and explosion. As the service life of the vacuum circuit breaker increases, the vacuum degree of the interrupter will decrease. Under the action of the electric field, the electrons and ions emitted by the moving contact and the static contact will collide with the gas molecules. The probability of collision increases, and the charged particles in the interrupter are sufficient For a long time, breakdown will be formed, it ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/668
CPCH01H33/668
Inventor 杨永旭李传秋王文林胡云党军朋陈俊张学敏杨亮许鑫周兴伟张元
Owner YUXI POWER SUPPLY BUREAU OF YUNNAN POWER GRID
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