Open AccessMeasurement and Analysis of abnormal noise of 10kV switch Cabinet
Author(s) -
Wei Chen,
Xiaowen Wu,
Sheng Cheng Hu,
Hao Cao,
Yine Xie,
Lixin Lu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/446/4/042053
Subject(s) - cabinet (room) , vibration , noise (video) , acoustics , amplitude , electrical engineering , flat panel , engineering , computer science , physics , optics , mechanical engineering , artificial intelligence , image (mathematics)
When the load current flows through the main row of the switch cabinet, the induction current is generated on both sides of the cabinet, and the electric power of the interaction between the bus and the panel appears. Because of the thin switch cabinet panel and double-layer plate structure, when the load current is large, the double-layer panel vibrates violently and collides with each other under the action of electric power, and then resulting in abnormal noise. It may lead to hidden danger of equipment safety for long time. In this paper, acoustic imaging technology is used to accurately locate the sound source, and then the vibration acceleration amplitude is measured by the vibration sensors. Based on its spectrum characteristics analyse result, the causes of abnormal noise are discussed and solutions are put forward.