Perfect Services

Motor Current Signature Analysis

Motor current signature analysis (MCSA) has proven to be a highly valuable predictive maintenance tool. Although it is a relatively young, rarely utilized technology, it is rapidly gaining acceptance in industry today. Mechanical faults related to belts, couplers, alignment and more are easily found through the use of a demodulated current spectrum. MCSA is simply the process by which motor current readings are recorded and analyzed in the frequency domain. It has been around since 1985 and proven itself well over the years in locating rotor faults and air gap problems in motors.

The major faults of electrical machines can broadly be classified by the following
A. Static and/or dynamic air-gap irregularities.
B. Broken rotor bar or cracked rotor end-rings.
C. Stator faults (opening or shorting of one coil or more of a stator phase winding)
D. Abnormal connection of the stator windings.
E. Bent shaft (akin to dynamic eccentricity) which can result in a rub between the rotor and stator, causing serious damage to stator core and windings.
F. Bearing and gearbox failures


Name cannot be blank.

Phone cannot be blank.

Subject cannot be blank.

Message cannot be blank.

Our Services