Method and apparatus for diagnosing overheating of an electric m

Details Method and apparatus for diagnosing overheating of an electric m Method and apparatus for diagnosing overheating of an electric m

1980-09-17

1983-02-15

Myracle, Jerry W.

Measuring and testing

Gas analysis

Gas chromatography

73116, G01N 3108

Patent

active

043733760

ABSTRACT:
A method and apparatus for diagnosing an overheating of a gas-cooled type electric machine having at least some components coated with an organic insulating material which decomposes into, for example, particles when subjected to high temperatures. The apparatus includes an extracting arrangement for enabling an extraction of gas from any region in an interior space of the electric machine. A device is provided for detecting a density of the particles contained in the gas and an arrangement is provided for analyzing a composition of the decomposed organic insulating material in the coolant gas so that, at first, an overheat region may be found and, secondly, an overheat position in the overheat region can be determined on the basis of the organic composition of the decomposed organic insulating material contained in the coolant gas.

REFERENCES:
patent: 3593023 (1971-07-01), Fullerton et al.
patent: 3916671 (1975-11-01), Carson et al.
patent: 4279142 (1981-07-01), McIntire

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