Bearing wear detector for AC rotary electric instrument

Details Bearing wear detector for AC rotary electric instrument Bearing wear detector for AC rotary electric instrument

1977-04-27

1980-04-22

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324207, 340682, G01R 3100, G01R 3300

Patent

active

041997182

ABSTRACT:
A bearing wear detector for an AC rotary electric instrument such as an electric motor or a generator in which more than three detecting coils are mounted around a core of the electric instrument having poles of three or not three multiples at a relative space angle and the detecting coils are connected in series to obtain a resultant voltage.

REFERENCES:
patent: 2939074 (1960-05-01), Perrett
patent: 3109095 (1963-10-01), Van Horne
patent: 3381216 (1968-04-01), Sibley, Jr. et al.

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