Built-in fiber temperature signal transmission device of medium and high pressure system

Abstract

The built-in fiber temperature signal transmission device for medium and high voltage system includes one built-in fiber with one end coupled to the emitting tube of signal treating and converting circuit and the other end coupled to low voltage side receiving tube, and one insulator covering the built-in fiber and its circuit in high voltage breaker or other electric equipment. The device has high measurement precision, high insulation strength and high measuring safety.

Description

Technical field: [0001] The invention relates to a novel medium and high voltage system built-in optical fiber temperature signal transmission device, which belongs to the field of online monitoring of electric power system parameters. Background technique: [0002] The accuracy of signal transmission and the safety and reliability of potential isolation in the online detection of the temperature of the high-voltage circuit breaker contact system are very important. According to the search, the current literature on the signal transmission of the online detection of the temperature parameters of the high-voltage circuit breaker contact system There have been many discussions, basically using the scheme of infrared digital signal space transmission and radio signal transmission, and the discussion of using infrared digital signal space transmission, such as the utility model patent "on-line temperature monitoring device for medium and high voltage systems" invented by Zhang Pe...

AI Technical Summary

Problems solved by technology

[0002] The accuracy of signal transmission and the safety and reliability of potential isolation in the online detection of the temperature of the high-voltage circuit breaker contact system are very important. According to the search, the current literature on the signal transmission of the online detection of the temperature parameters of the high-voltage circuit breaker contact system There have been many discussions, basically using the scheme of infrared digital signal space transmission and radio signal transmission, and the discussion of using infrared digital signal space transmission, such as the utility model patent "on-line temperature monitoring device for medium and high voltage systems" invented by Zhang Peiming and others (Patent No. : ZL 94242976.1), using the non-contact potential isolation method of signal space transmission, but this solution must solve the problem of mutual interference between different phase signals, and once dust or other dirt is stained on the transmitting tube or receiving tube, it will affect the transmission of the signal, thus Affecting the quality of online monitoring, the utility model patent "on-line detection signal transmission device for medium and high voltage systems" (patent number: ZL2004 2 0064929.2) invented by Zhang Peiming and others solves the abo

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