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failure modes and root causes in rotating electric insulation fault rotor fault stator fault failure modes of electrical machines specification of electrical machines types condition monitoring of rotating electrical machin ageing rate lifetime definitions iec standards 60076-7 commonly occurring failures of the transformer failure modes and effect analysis mil-std-1629a classification of fault in transformer transformer diagnostics technique shorted turns in stator windings bearings damage air-gap eccentricity broken rotor bars faults that can be detected with mcsa condition monitoring of electrical rotating machin motor current signature analysis mcsa doernenburg ratio method rogers ratio method gas ratio methods key gas method gas evolution in a transformer dissolved gas analysis condition monitoring of transformer dga matlab for pid performance ziegler- nichols method comparison of controllrs performance of pid tunning of pid control system pd pi pid run to failure maintenance preventive maintenance predictive maintenance types of maintenance bath tub curve maintenance application of power electronics semicoductor devices converters pe power elctronics operation mode of stepper 2-phase-on half-step a-phase-on operation of stepper motor pm stepper motor variable relucatnece stepper motor types of stepper motor stepper moto stepper