Understanding Stator Insulation In-Process Testing

Modern day manufacturing practices are focusing on maximizing production while actively pursuing ways to mitigate potential failures in their products. With rotating machinery, part of this pursuit requires qualification checkpoints during manufacturing processes. For motor stators, it is essential to perform in-process insulation testing to ensure the dielectric integrity of the system is maintained. This paper provides detailed technical analysis of the types of electrical testing performed during the stator manufacturing process. It also provides full detail as to how each test type can mitigate issues leading to electrical failure while maintaining insulation quality assurance.