Inclined-angle type double-fiber arc light detection probe

A detection probe and dual-fiber technology, which is applied in the field of angle-type dual-fiber arc detection probes, can solve problems such as limited sensitivity, achieve high system sensitivity, and realize the effect of self-inspection function

Inactive Publication Date: 2015-12-09
GUANGXUN SCI & TECH WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The acousto-optic detection is only used in the arc light sensor designed by General Electric Company, but the system adopts the structure of double optical fibers placed side

Method used

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  • Inclined-angle type double-fiber arc light detection probe
  • Inclined-angle type double-fiber arc light detection probe
  • Inclined-angle type double-fiber arc light detection probe

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Embodiment Construction

[0030] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The invention provides an angle-type double-fiber arc detection probe, which is designed based on an intensity-reflection optical fiber sensor, and can simultaneously detect sound signals and light signals when an arc flicker event occurs.

[0032] Such as Figure 1-2 As shown, the angled dual-fiber arc detection probe includes: a front sleeve 1 , a diaphragm 3 , a transmitting optical fiber 5 a , a receiving optical fiber 5 b , an optical fiber fixing bracket 4 and a rear sleeve 9 .

[0033] Front sleeve 1 such as image 3 As shown, it has the function of guiding sound and guiding light. A dust-proof filter 2 is further fixed between the front sleeve 1 and the diaphragm 3, which can prevent dust and prevent the entire p...

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Abstract

The invention relates to an inclined-angle type double-fiber arc light detection probe, and the probe comprises a pre-posed casing pipe, a film, a transmitting optical fiber, a receiving optical fiber, an optical fiber fixing support, a post-posed casing pipe, a light source, and a light signal detector. An optical signal emitted by the light source is transmitted to the film through the transmitting optical fiber, is reflected by the film to receiving optical fiber, and then is detected by the light signal detector. The film can induce a sound signal generated by an electric arc to generate corresponding vibration, thereby changing the intensity of the light signal, emitted by the light source, received by the light signal detector. At least one of the pre-posed casing pipe, the optical fiber fixing support and the post-posed casing pipe is made of materials doped with a fluorescent material. The fluorescent material can enable arc light generated by the electric arc to be converted into a fluorescent signal corresponding to the electric arc, thereby changing the intensity of the fluorescent signal received by the light signal detector. The probe employs an inclined-angle double-fiber structure, can detect the sound signal and light signal of an arc light flicker event, is high in system sensitivity, and can achieve a self-inspection function.

Description

technical field [0001] The invention relates to a detection device, in particular to an angle-type double-fiber arc detection probe for simultaneous detection of arc sound and arc light in a power system. Background technique [0002] In today's society, the power system is constantly developing. Common faults in the power system include: overvoltage, overcurrent, short circuit and arc, among which arc is the most harmful to equipment and personal safety. [0003] The existing arc light detection probes are mainly based on fiber optic sensors. The foreign manufacturers include ABB, Littelfuse, Schneider, VAMP and General Electric, and the domestic manufacturers are mainly Nanjing Wushi Jin Sensing Technology Co., Ltd. Most of the products of these companies use the light signal to detect the arc flicker, but ignore the accompanying sound signal when the arc flicker event occurs. Acousto-optic detection is only used in the arc light sensor designed by General Electric Compan...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01H9/00G01J1/00
Inventor 官成钢罗勇陈小梅周园
Owner GUANGXUN SCI & TECH WUHAN
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