Turbine speed control

Details Turbine speed control Turbine speed control

1982-06-18

1984-08-07

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Engine control

290 40R, 290 40D, H02P 904

Patent

active

044645775

ABSTRACT:
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.

REFERENCES:
patent: 3643437 (1972-02-01), Birnbaum et al.
patent: 3826095 (1974-07-01), Conrad, Jr. et al.
patent: 3829232 (1974-08-01), Fieglein et al.
patent: 3928975 (1975-12-01), Braytenbah
patent: 3931714 (1976-01-01), Jaegtnes et al.
patent: 4035624 (1977-07-01), Lardi
patent: 4071897 (1978-01-01), Groves, Jr. et al.

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