Overspeed protection control arrangement for a steam turbine...

Details Overspeed protection control arrangement for a steam turbine... Overspeed protection control arrangement for a steam turbine...

G - Physics

05

B

341/95, 322/6.4

G05B 15/00 (2006.01) F01D 17/02 (2006.01) F01D 21/02 (2006.01) F01K 7/16 (2006.01) G01P 1/10 (2006.01)

Patent

CA 1241409

33 ABSTRACT OF THE DISCLOSURE In a steam turbine control system three overspeed protection circuits (OPC) are provided, each one being identical to the others and each having a programmable digital computer in two-way data communication with a master controller, as well as with the other OPCs. Speed transducers adjacent the turbine shaft provide speed transducers to the respective OPCs which calculate extreme- ly precise RPM values utilizing an adaptive filter in the derivation process.

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