Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1980-09-24
1983-06-28
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
361 79, G01R 3102
Patent
active
043908357
ABSTRACT:
A method of identifying faults in a polyphase alternating current electric power transmission system wherein determination of the type of fault occurring is effected by monitoring, using analogue techniques, the instantaneous values of quantities derived from superimposed currents and/or voltages arising in the system on occurrence of a fault. Apparatus for carrying out the method is also disclosed.
REFERENCES:
patent: 4063300 (1977-12-01), Paddison et al.
patent: 4261038 (1981-04-01), Johns et al.
patent: 4272816 (1981-06-01), Matsumoto et al.
patent: 4281386 (1981-07-01), Kondow et al.
Chamia et al., Ultra High Speed Relay for EHV/UHV Transmission Lines--Development, Design and Application, IEEE Transactions on Power Apparatus & Systems, vol. PAS--97, No. 6, Nov./Dec., 1978, pp. 2104-2112.
Cheetham William J.
Elkateb Makeen M.
Krawczewicz Stanley T.
The General Electric Company Limited
LandOfFree
Fault identification in electric power transmission systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fault identification in electric power transmission systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault identification in electric power transmission systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-936046