G - Physics – 01 – K
Patent
G - Physics
01
K
310/18, 354/29
G01K 13/00 (2006.01) G01K 1/02 (2006.01) G01K 3/02 (2006.01)
Patent
CA 1245767
ABSTRACT OF THE DISCLOSURE A generator having stator windings which are water cooled includes a plurality of sensors each for measuring the temperature of cooling water as it is dis- charged from respective sections of the stator windings and prior to its collection in a common manifold. The outputs of the sensors are combined to obtain an average reading and during an initialization process, each sensor reading is subtracted from the average to derive a correction factor for that particular sensor, for that particular average. The generator is operated so that other averages are selected for the calculation of other sensor correction factors. When operating on line, the correction factors are utilized to obtain a value for a percent of average coil temperature in accordance with the relationship: % OF AVG. COIL TEMP = Image where T is the temperature indication provided by the sensor, AVG is the average of all of the sensor readings, and CF is the appropriate correction factor for that sensor for that average.
500754
Craig William G.
Emery Franklin T.
Murphy Franklin J.
Oldham And Company
Westinghouse Electric Corporation
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