Boots – shoes – and leggings
Patent
1979-12-10
1982-09-14
Wise, Edward J.
Boots, shoes, and leggings
328134, 364550, G01R 2300
Patent
active
043498787
ABSTRACT:
An arrangement for detecting disturbances influencing the network frequency in electric power supply systems is suggested and the use of such an arrangement in an adaptive automatic frequency control system for electric power systems is disclosed. A first measuring channel responsive to the frequency to be monitored comprises delay and sample circuit means operated by timer means connected in a second measuring channel responsive to the frequency change rate. Output signals of said delay and sample circuit means giving a history of the frequency change to be monitored, are compared and processed in an arithmetic unit to obtain information about the power flow in the network causing the frequency disturbance and the location of the disturbance, respectively.
REFERENCES:
patent: 3932737 (1976-01-01), Delepine
patent: 3990007 (1976-11-01), Hohhof
patent: 4037151 (1977-07-01), Takeuchi
patent: 4073009 (1978-02-01), Andow et al.
patent: 4074191 (1978-02-01), Jules
patent: 4137496 (1979-01-01), Lind
patent: 4137497 (1979-01-01), Lowenschuss
patent: 4144491 (1979-03-01), Hutcheon
patent: 4157457 (1979-06-01), Sakoe et al.
patent: 4236112 (1980-11-01), Boldridge, Jr.
LandOfFree
Arrangement for detecting disturbances influencing the network f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for detecting disturbances influencing the network f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for detecting disturbances influencing the network f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2157785