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

Figure 7

Spectra of MPPUA under different conditions.

(a) Normal condition

(b) 0.1 mm SAGE

(c) 0.2 mm SAGE

(d) 0.3 mm SAGE

(e) 3% RISC

(f) 6% RISC

(g) 12% RISC

(h) 0.1 mm SAGE and 3% RISC

(i) 0.1 mm SAGE and 6% RISC

(j) 0.1 mm SAGE and 12% RISC

(k) 3% RISC and 0.2 mm SAGE

(l) 3% RISC and 0.3 mm SAGE