Measurement of hydrogen leakage through stator windings into gen

Details Measurement of hydrogen leakage through stator windings into gen Measurement of hydrogen leakage through stator windings into gen

1994-10-26

1996-02-20

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 405R, G01M 330, H02K 924, G01N 3108

Patent

active

054920043

ABSTRACT:
Hydrogen leakage from a generator core through stator windings into the generator coolant water is measured by flowing air into the coolant water exiting the stator windings and measuring the hydrogen content of the gas vented from a coolant water reservoir. The flow of air into the coolant water also oxygenates the coolant water to prevent undesirable formation of less stable cuprous oxide layers and enhance the formation of a protective cupric oxide film on the inside surfaces of the copper stator windings. In another form, trace gas is introduced into one of the generator core environment and the coolant water and a detector measures the magnitude of the trace gas leaked between the generator core environment and the coolant water as an indication of the magnitude of hydrogen leakage escaping from the generator core into the stator water coolant system.

REFERENCES:
patent: 3248297 (1966-04-01), Moore et al.
patent: 3894138 (1975-07-01), Klaar
patent: 4216821 (1980-08-01), Robin
patent: 4226113 (1980-10-01), Pelletier et al.
patent: 4319479 (1982-03-01), Iwamura et al.
patent: 4321110 (1982-03-01), Nickel et al.
patent: 4440017 (1984-04-01), Barton et al.
patent: 4898021 (1990-02-01), Weaver et al.

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