Method for remote measuring high-voltage insulator zero-value by laser

A technology of high-voltage insulators and insulator strings is applied in the field of using laser telemetry to measure the zero value of high-voltage insulators, and achieves the effect of novel and high-efficiency system measurement methods

Inactive Publication Date: 2009-10-07
何速
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  • Abstract
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  • Application Information

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Problems solved by technology

[0010] In summary, we can see that each method has its own strengths, and there are certain application limitations.

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  • Method for remote measuring high-voltage insulator zero-value by laser
  • Method for remote measuring high-voltage insulator zero-value by laser

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0022] The present invention is made up of pulse laser driving emission circuit, optical polarizer, optical analyzer, photodetector, signal processing circuit and computer system (see figure 1 ),in

[0023] Pulse laser drives the transmitting circuit and optical polarizer (semiconductor laser source and polarization optical system): the laser wavelength of the semiconductor laser belongs to the visible light range, and has a small divergence angle, which is suitable for cloudy or evening, night and other weather conditions. . The adoption of pulsed laser-driven transmitter circuit can eliminate external interference. Using an optical polarizer, the semiconductor laser is converted into linearly polarized light to improve the polarization sensitivity.

[0024] Optical analyzer and photodetector: use the optical analyzer to analyze the laser ...

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Abstract

The invention relates to a method for remote measuring the zero value of a high-voltage insulator by using a laser, which is composed of a semiconductor laser source, a polarization optical system, an optical analyzer, a photodetector, a signal processing circuit and a computer system. The specific steps are: the first step: A polarized laser light is generated by a semiconductor laser source and a polarization optical system and emitted to the insulator string to be scanned; the second step: the polarized laser passes through the insulator string to be scanned to generate diffuse reflection light, and the diffuse reflection light is detected and analyzed by an optical analyzer. The light after polarization analysis is sent to the photodetector to sense the light intensity; the third step: after the photodetector senses the light intensity, it is converted into an electrical signal and sent to the signal processing circuit for processing into data; the fourth step: the processed data The conclusions are drawn from the analysis by the computer system. Since the present invention uses laser to detect the zero value of the high-voltage insulator at a long distance, the present invention has the characteristics of novel system measurement method, safety, non-contact measurement and high efficiency.

Description

technical field [0001] The invention belongs to a live detection method of an insulator of a high-voltage transmission line, in particular to a method for remotely measuring the zero value of a high-voltage insulator by using a laser. Background technique [0002] Live detection of high-voltage transmission line insulators has always been a topic that people in the industry attach great importance to and study with great concentration. Due to the particularity of the installation position of the line insulator and the harshness of the detection environment, there has been no accurate and reliable live quantitative detection method so far. [0003] There are mainly the following methods for live detection of insulator faults at home and abroad: [0004] 1 Spark fork method: It is the most commonly used detection method at present. This method is to judge whether the insulator is good or not according to whether the spark fork contacts with the insulator to generate discharge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/02G01R31/08G01R31/12G08C19/36
Inventor 何速
Owner 何速
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