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Open AccessArticle

Design and Performance Test of Transformer Winding Optical Fibre Composite Wire Based on Raman Scattering

by Yunpeng Liu 1,2, Junyi Yin 1,2,*, Yuan Tian 1,2 and Xiaozhou Fan 1,2
1
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
2
Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defence, North China Electric Power University, Baoding 071003, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(9), 2171; https://doi.org/10.3390/s19092171
Received: 4 April 2019 / Revised: 25 April 2019 / Accepted: 8 May 2019 / Published: 10 May 2019
(This article belongs to the Special Issue Distributed Optical Fiber Sensing)
Winding overheating is a common fault in a transformer. To detect the temperature, the most widely used method is a point-type measurement, but traditional measurement methods cannot obtain the whole temperature distribution in a transformer. Taking this into consideration, a new method with which to measure the temperature of transformer windings was proposed. Based on Raman scattering, a new fibre-optic composite winding model was developed. The feasibility of the model was verified by electrical as well as temperature, field simulation and power frequency resistance testing. To assess the practicality and accuracy of the new model, a distributed optical fibre temperature measurement platform was built, and a series of experiments were designed. According to the data collected, the temperature measurement error based on the method could be limited to 1 °C while the positioning accuracy error was within 1 m, which meant that the new approach can satisfy the requirements of transformer winding temperature measurement and locate hot spots in the winding. View Full-Text
Keywords: Raman scattering; transformer winding; distributed optical fibre; temperature detection; hot-spot location Raman scattering; transformer winding; distributed optical fibre; temperature detection; hot-spot location
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MDPI and ACS Style

Liu, Y.; Yin, J.; Tian, Y.; Fan, X. Design and Performance Test of Transformer Winding Optical Fibre Composite Wire Based on Raman Scattering. Sensors 2019, 19, 2171.

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