Condition Monitoring of DSP Based Online Induction Motor External Fault Detection Using TMS320LF2407 DSP

This paper presents the implementation of TMS320LF2407 DSP processor Kit to identify the single phasing fault online, based on the stator current. The Induction motors are most widely used motors in industrial, commercial and residential sectors because of enormous merits of these over the types of available electric motors, as the workhorse in industrial applications. The early detection of these deteriorating conditions in incipient phase and its removal is necessary for the prevention of external failure of the induction motors, reducing repairs costs and motor outage time. The various types of external faults in induction motor are single line-to-ground fault, double line-ground fault, line-line fault, single phasing fault, locked rotor, under voltage, overvoltage, phase sequence reversal of supply voltage and mechanical overload. This proposed method is applied to a 3.3KW three phase induction motor using TMS320LF2407 DSP processor Kit to identify the single phasing fault online, based on the stator current and then the measurement results are analyzed.