Research Article

Stator Vibration Characteristic Identification of Turbogenerator among Single and Composite Faults Composed of Static Air-Gap Eccentricity and Rotor Interturn Short Circuit

Table 1

Upper amplitude expressions of MPPUA for different conditions.

ComponentPerforming conditionAmplitude formulasInfluential factors

DC componentNormal condition
SAGE,
RISC,
CF, ,

1st harmonicNormal condition
SAGE
RISC,
CF, ,

2nd harmonicNormal condition
SAGE,
RISC,
CF, ,

3rd harmonicNormal condition
SAGE
RISC,
CF, ,

4th harmonicNormal condition
SAGE
RISC,
CF, ,