Eccentricity

Eccentricity

Notes

• also called air-gap irregularities
• when air gap>10%

Causes

• bad bearing
• worn bearing
• bent rotor shaft
• excessive load
• unequal air gap between rotor and stator

Effects

• stray current in stator winding
• heat
• losses

Classification

• static eccentricities
• dynamic eccentricities
• combined eccentricities

References

• (benbouzidSignalProcessingFault2020, link, DOI)
• kudelinaMainFaultsDiagnostic2020