Stray Currents and their Damaging Effects on Rotating Machinery
Abstract
Stray currents manifest in rotating machinery as a result of specific abnormalities in machines related to flux imbalance, residual magnetism, electrostatic build-up and induced voltages. Discharges of these voltages in components can be very harmful and sometimes catastrophic. Typical damage include pit marks, spark tracks, frosting and electric erosion in components such as bearings, seals and gear teeth. The presentation summarize, typical damage caused by stray currents, diagnostic techniques to identify the problem, remedies to resolve the problem and highlights several case studies.
Description
Case StudySubject
TurbomachinesCollections
Citation
Hanekom, Dian (2018). Stray Currents and their Damaging Effects on Rotating Machinery. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from https : / /hdl .handle .net /1969 .1 /174969.