DIAGNOSTIC SYSTEM AND METHOD FOR AN ESSENTIAL TURBINE VALVE
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Oct 28, 2010
filing date -
Oct 28, 2010
priority date (Note) -
Abandoned
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Abstract
The present invention is a diagnostic method for determining the operability of an essential turbine valve, comprising the steps of exercising an essential valve operatively connected to a turbine inlet line through which a power plant motive fluid is supplied to a turbine by causing the essential valve to be partially closed for a predetermined exercising duration; detecting a drop in power produced by an electric generator coupled to the turbine resulting from said partial closing of the essential valve; comparing the detected power drop with a predetermined marginal power drop; and associating the essential valve with an operable status for reliably regulating the flow of motive fluid therethrough when the actual power drop is substantially equal to the predetermined marginal power drop.
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