Online monitoring device for arrester temperature distribution

A monitoring device and technology for temperature distribution, applied in the field of arresters, can solve the problems of difficulty in finding the abnormality of arresters in time, low detection accuracy, long measurement period, etc., and achieve the effects of improving power supply reliability, ensuring safe operation, and improving anti-interference ability.

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AI Technical Summary

Problems solved by technology

This technical solution has a long measurement cycle, low detection accuracy, and is greatly affected by ambient temperature or sunlight, making it difficult to detect abnormalities in the arrester in time.

Method used

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  • Online monitoring device for arrester temperature distribution
  • Online monitoring device for arrester temperature distribution
  • Online monitoring device for arrester temperature distribution

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Embodiment Construction

[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like figure 1 As shown, an online monitoring device for the temperature distribution of a lightning arrester includes an optical fiber grating temperature sensor and a main control module. The main control module; the main control module judges the operation status of the arrester according to the measurement data.

[0021] Since the thermal characteristic of the defective arrester during operation is uneven heating of the entire porcelain bushing or the temperature of the defective part inside the porcelain bushing is higher than normal, the temperature measurement of the arrester by the fiber grating temperature sensor is aimed at the operation of the valve in the arrester body It can detect the internal faults of the ar...

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Abstract

The invention discloses an online monitoring device for arrester temperature distribution, which comprises a fiber grating temperature sensor and a main control module, wherein the fiber grating temperature sensor is connected onto the arrester, the fiber grating is adopted to carry out distributed temperature measurement on the arrester, and the measured data are transmitted to the main control module through the fiber; and the main control module judges the operating condition of the arrester according to the measured data. The online monitoring device is reasonably designed, the fiber grating is used as a sensor, a power electronics technology and a digital signal processing technology are used to realize the function of online and real-time monitoring on the distributed temperature, anarrester abnormity can be timely found out, and the online monitoring device for arrester temperature distribution has the advantages of high temperature detection precision and strong anti-interference ability.

Description

technical field [0001] The invention relates to the technical field of lightning arresters, in particular to an online monitoring device for temperature distribution of lightning arresters. Background technique [0002] Zinc oxide arrester is an electrical product used by power stations, substations and transmission lines to protect various electrical equipment in the power system from overvoltage damage, and is one of the important protection equipment to ensure the safe operation of the power system. The main function of the zinc oxide arrester is to absorb the impact energy of lightning overvoltage, operating overvoltage, etc., and prevent overvoltage from damaging electrical equipment and electrical equipment. Due to the long-term continuous operation voltage, impact voltage and various external factors of the zinc oxide arrester, the aging of the resistor sheet will be accelerated, the insulation will be damaged, and the resistive current will increase, the power consum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K11/3206
CPCG01K11/32
Inventor 王典浪李东陈俊曹鸿李国艮魏纲陈静蒋龙刘宁杨晓维皮天满谢正波龚禹璐
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