Diagnosis of turbine generator typical faults by shaft voltage | IEEE Conference Publication | IEEE Xplore

Diagnosis of turbine generator typical faults by shaft voltage


Abstract:

Relationships between shaft voltages and static eccentricities are studied, theoretical analysis shows that shaft voltages are induced by the `distorted fluxes' caused by...Show More

Abstract:

Relationships between shaft voltages and static eccentricities are studied, theoretical analysis shows that shaft voltages are induced by the `distorted fluxes' caused by static eccentricities, shaft voltages mainly contain odd harmonics, the harmonic amplitudes increase under greater eccentricities. Some new distorted flux hamonics appear when field windings interturn short circuit happens, the harmonic frequencies change with the generator pole-pair number, and amplitudes increase when the fault get worse. The following experimental work agrees with the theoretical predictions.
Date of Conference: 07-11 October 2012
Date Added to IEEE Xplore: 06 December 2012
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Conference Location: Las Vegas, NV, USA

References

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