Overspeed anticipation circuit for steam turbine speed control

Details Overspeed anticipation circuit for steam turbine speed control Overspeed anticipation circuit for steam turbine speed control

1983-11-23

1984-10-02

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

417 17, 417 30, F01K 1302

Patent

active

044740131

ABSTRACT:
An overspeed detection circuit for producing an overspeed trip signal for shutting off a supply of motive fluid to a prime mover upon the prime mover exceeding an overspeed trip limit includes a differentiating circuit effective to differentiate a speed signal to produce an acceleration signal related to the rate of change in the speed signal. The acceleration signal is summed with the speed signal to produce an effective speed signal which anticipates the crossing of an overspeed threshold when a fault permits a constant speed increase to occur but does not force the summed signal to cross the overspeed threshold when normal speed control is exercised.

REFERENCES:
patent: 3340883 (1967-12-01), Peternel
patent: 3798907 (1974-03-01), Barrett et al.
patent: 3859006 (1975-01-01), Randell

Affiliated with

Also associated with

Rating

Overspeed anticipation circuit for steam turbine speed control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overspeed anticipation circuit for steam turbine speed control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overspeed anticipation circuit for steam turbine speed control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-521455