The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Sep. 17, 1999
Edgar Mel Brown, Sr., West Suffield, CT (US);
Frank Martin Kessler, Jr., Suffield, CT (US);
Richard Michael Manazir, Jr., Barkhamsted, CT (US);
Raymond Robert Senechal, East Hartford, CT (US);
Westinghouse Electric Company LLC, Pittsburgh, PA (US);
Abstract
A system and method for interfacing with a nuclear power plant's digital plant protection system activates emergency response devices when necessary. Two redundant bistable processors in each of four logic channels determine whether a particular parameter of the plant operation exceeds safety limits based on output from the plant protection system which monitors plant operations. Two independent coincidence processors in each channel compare the output of each bistable processor with the complementary output of a bistable processor of another logic channel. The results are provided to a series of component control system processors for activating emergency response devices when necessary. A fiber optic network interconnects the logic channels. Within each channel, a fiber optic network is provided between the component control system processors and a main control room so that a manual activation signal can be sent to the component control processors.