Localization of mechanical and electrical defects in dry-type transformers using an optimized acoustic imaging approach
Zhanxi Zhang,
Youyuan Wang,
Zhihe Li
et al.
Abstract:This paper presents an acoustic imaging localization system designed to pinpoint common defects in dry-type transformers by analyzing the unique sounds they produce during operation. The system includes an optimized microphone array and an improved multiple signal classification algorithm. Sound signal characteristics of typical defects, such as foreign object intrusion, screw loosening, and partial discharge, are investigated. A 64-element, 8-arm spiral microphone array is designed using a particle swarm opti… Show more
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