Turbine speed control

Details Turbine speed control Turbine speed control

F - Mech Eng,Light,Heat,Weapons

01

D

341/95

F01D 21/02 (2006.01) F01D 17/06 (2006.01) F01D 21/00 (2006.01) G01P 1/10 (2006.01)

Patent

CA 1199710

TURBINE SPEED CONTROL Abstract of the Disclosure A control system for a prime mover may include a proportional speed control, a primary overspeed control and an emergency overspeed control. The proportional speed signal is obtained from select highest value logic, whereas overspeed and loss of speed signals are submitted to two out of three logic and two out of four logic, respectively. A passive emergency overspeed channel is provided in combination with the primary overspeed channel to respective de-energize and energize trip relays connected to electrohydraulic trip devices.

429669

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