Fault diagnostic device for winding of electric machinery and ap

Details Fault diagnostic device for winding of electric machinery and ap Fault diagnostic device for winding of electric machinery and ap

1979-08-01

1981-04-14

Gill, James J.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73593, G01M 700

Patent

active

042612063

ABSTRACT:
A fault diagnostic device comprises vibrating means for vibrating a winding by feeding current having a predetermined frequency; detecting means for detecting physical value given in said winding by the vibration; and indicating means for indicating the result of the detection by said detecting means whereby a diagnosis of fault can be performed in high reliability.

REFERENCES:
patent: 2384987 (1945-09-01), Dudley
patent: 2648979 (1953-08-01), Cornett
patent: 2857757 (1958-10-01), Kendig et al.
patent: 3913084 (1975-10-01), Bollinger et al.
patent: 4165458 (1979-08-01), Koizumi et al.
Japanese Applications 42,661 & 42,662 of 1976, Published Oct. 1977.
"Vibration Analysis as an Aid to the Detection and Diagnosis of Faults in Rotating Machinery", by E. Downham, Institute of Mechanical Engineers, C192/1976, pp. 223-229.
"Mechanical Fatigue Characteristics of High Voltage Generator Insulation", by Futakawa et al., IEEE Trans. of Electrical Insulation, vol. EI13, No. 6, pp. 395-402, Dec. 1978.

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