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Objective

The objective of this experiment is to detect fault in the impeller of a centrifugal pump using vibration analysis and motor current signature analysis(MCSA)


Introduction

A pump is a mechanical device where mechanical energy is transformed into hydraulic energy. It is used to transfer liquid from source to destination and circulate liquid around the system. In present days, 20% of world's electrical energy is consumed by use of pumps.

There are many conditions which leads to the failure of a pump. This includes seal related problems(leakages,loss of flushing), pump and motor bearing related problem(loss of lubrication, contamination of oil, abnormal noise), leakages from pump casing very high noise and vibrational levels, or motor related problems. Hence certain measures are required to predict the machinery failure much before it occurs.

Condition Monitoring(CM) is a technique to determine the health and condition of equipment,machines and machining system by observing, checking, measuring and monitoring certain parameters. CM provides information on failures before system is going to fail.

Predictive maintainence does not prevent the failure of a machine and machinery systems but it can predict the possibility of failure by using CM. CM system can only measure the deterioration of the condition. Intervention in the early stages of deterioration is usually much more cost effective and safe than allowing the machinery to fail.