埋入35 kV干式空心电抗器的光纤布拉格光栅测温研究

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Abstract High temperature seriously threatens the security and the stability of the dry-type air-core reactor operation.In this paper,concerning its extreme high voltage and strong magnetic field environment,the temperature monitoring for the 35 kV dry-type air-core reactor under the working condition using embedded (fiber Bragg grating) FBG is implemented.An optical FBG temperature sensor with the characteristics of simple structure,small volume,and electromagnetic interference resistance is developed.The sensor is then buried in the lead sealing surface casing between two adjacent ventilation bars.The distance to the top of the reactor is about 40 cm.The temperature experimental results show that,after reaching steady state,the temperature of the inner conductor layer and the outer conductor layer are relatively low,about 82 ℃ and 72 ℃ respectively,and the temperatures in the middle are distributed between 90 ℃ and 100 ℃.The highest temperature of the conductor layer 6 is about 100 ℃.The designed embedded optical FBG temperature sensor is stable and reliable,with high precision and electromagnetic interference resistance.It can realize the on-line temperature monitoring in the extreme environment for 35 kV dry-type air-core reactors,and is vital to maintain the security and stability of the power grid.

Key words： Dry-type air-core reactor optical fiber Bragg grating embedded type temperature measurement on-line monitoring

Received: 24 November 2014 Published: 13 April 2015

PACS:

TP206+.1

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	Articles by authors
	Zhou Yanhui
	Zhao Zhengang
	Li Yingna
	Zhang Changsheng
	Xie Tao
	Cui Zhigang
	Wang Ke
	Tan Xiangyu
	Li Chuan

Cite this article:

Zhou Yanhui,Zhao Zhengang,Li Yingna等. The Study on the Temperature Measurement for the 35 kV Dry-type Air-core Reactor with the Embedded Optical Fiber Bragg Grating[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 142-146.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I5/142

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