A New Algorithm of Online Stator Faults Diagnosis of Three-Phase Induction Motors Using Duty Ratios of Half-Period Frequencies According to Phase Angle ChangesYoungJin Go, Myoung-Hyun Song, Jun-Young Kim, Buhm Lee, Wangrim Choi and Kyoung-Min KimMATEC Web Conf., 70 (2016) 09002DOI: https://doi.org/10.1051/matecconf/20167009002