Diagnostics and prognostics for multiple induction machines using a single set of current transducers

This paper describes a field-tested technique that uses aggregate current measurements to detect faults in multiple induction machines. This new approach reduces costs and potentially increases reliability. The paper begins with a description of the field-tested system. It then describes three analytical techniques that have been applied to aggregate data in order to identify faults. The paper uses specific examples taken from applications in power plants and shipboard environments.