A Simplified Cost Effective Condition Monitoring and Diagnostic System for Detection of Faults and Protection of Electrical Machines

ATTACHED PAPER SHOULD BE DEVELOPED AS IT IS This paper presents a novel simplified cost effective binary based mechanism for eliminating problems in existing condition monitoring and diagnostic techniques. The existing techniques are engraved with problems like high cost of their implementation, failure to detect multiplicity of faults, complicated diagnosis system, expert knowledge, inherent ambiguities etc. The mechanism developed in this work gives flexibility to monitor faults at incipient stage and avoid catastrophic cascading of faults that leads to plant shutdown and consequent long repair/maintenance periods. The developed system detects working status of sensors, location of faults, no. of faults at that particular instant, acknowledgement of faults, and health status of electrical machines connected to the system. These diagnostic parameters have been extracted by implementing a simple logic circuitry. The main advantage of this system is that it can be applied to any rating of electrical machines. The input parameters for the system are the outputs of the sensors which are capable to measure variation in parameters like current, voltage, flux, torque, speed, temperature, and vibration etc. due to occurrence of faults. The test results of the proposed mechanism have been found to be highly encouraging, accurate and extremely fast providing the much needed protection of machines.