Study on the method of evaluating the failure of stator bar insulation materials based on mechanical damage characteristics
Source abstract
Abstract
The damage impact of mechanical shocks on stator bar insulation is a key factor in high-voltage motor accidents. This study conducted electrical aging acceleration and breakdown experiments on damaged stator insulating materials to understand failure causes and evaluation methods. The relationship between sample defect area and depth and electrical properties was analyzed, along with the morphology of the damaged surface using a scanning electron microscope. Results show that the defect area correlates with impact mode but does not directly impact electrical performance. Effective insulation thickness is positively linked to electrical performance. This study serves as a valuable reference for evaluating mechanical impact faults in high-voltage motors.
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Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Electrical Fault Detection and Protection · Power Transformer Diagnostics and Insulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical and Electrical Engineering, Nanchong Vocational and Technical College 1 , Nanchong, Sichuan 637131, China
School of Materials Science and Engineering, Xihua University 2 , Chengdu, Sichuan 610039, China
Dong Fang Electrical Machinery Co. Ltd. 3 , Deyang, Sichuan 618000, China
Funding
Sichuan Sciance and Technology Program · Chunhui Project Foundation of the Education Department of China · Science and Technology Plan Project of Nanchong City · Scientific Research Project of NanChong Vocational and Technical College
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Show source-provided references
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