General Electric Company

Kenneth Lee Leary

Michael Joseph Dell'Anno

Eamon Patrick Gleeson

Frederick William Block

Richard Lee Nichols

Mark P Bombard

Guillermo Garcia

Bret Stephen Dalton

Robert Lester Brooks

Eric Stephen Kaufman

Michael J Dell'anno

Patrick Gleeson Eamon

A method and system of testing an overspeed protection system of a turbomachine. The method and system may include providing an overspeed protection system on a turbomachine that may have a single or multiple shafts; determining whether the speed the shaft or shaft(s) exceeds a shutdown value; changing an overspeed trip value of the turbomachine; and determining whether the overspeed protection system would operate to trip the turbomachine.

Method and system for testing an overspeed protection system during a turbomachine shutdown sequence

A method and system of testing an overspeed protection system of a turbomachine may include providing an overspeed protection system on a turbomachine having at least one shaft. The method may: determine whether a permissive or permissive(s) is satisfied; initiate an overspeed test; automatically adjusting the speed of a shaft; determining if the speed exceeds an overspeed trip value; and automatically disabling the automatic adjustment of the speed after the test is complete.

Method and system for testing the overspeed protection system of a turbomachine

A method for analyzing a system for safety to personnel is disclosed comprising: identifying at least one operating parameter of a first subcomponent of said product; identifying an inherent hazard of said first subcomponents based on an analysis of the at least one operating parameter; identifying features of the structure or operation of the subcomponent corresponding to the inherent hazard; identifying design modifications for the identified features that would mitigate the inherent hazard; identifying safety instrumented control functions and their probability of failure requirements that would mitigate the inherent hazard; prioritizing the identified features with respect to the effect that each of said features has on safety of the product; and determining whether an unsafe condition could result from the inherent hazard.

Method for assessing reliability requirements of a safety instrumented control function

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Anderson, SC, United States of America

Kenneth Lee Leary