Electricity: electrical systems and devices – Safety and protection of systems and devices – Automatic reclosing
Reexamination Certificate
2006-01-31
2006-01-31
Toatley, Jr., Gregory J. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Automatic reclosing
C324S509000
Reexamination Certificate
active
06992872
ABSTRACT:
A method of protecting multiple feeder circuits fed from a shared electrical distribution system is provided. The method includes providing a bypass line, providing bypass switches in the bypass line, providing a fault lockout protection controller coupled to the bypass line. The bypass line bypasses separable circuit breaker contacts in each of the feeder circuits between a load side and a line side of the electrical distribution system. The bypass switches selectively couple each of the feeder circuits to the bypass line. The method further includes controlling the fault lockout protection controller to detect the existence of a fault condition on the load side of the feeder circuit selectively coupled to the bypass line prior to closing the separable circuit breaker contacts of the feeder circuit; and controlling the fault lockout protection controller to prevent closure of the separable circuit breaker contacts upon detection of the fault condition.
REFERENCES:
patent: 4301434 (1981-11-01), Castonguay
patent: 4331915 (1982-05-01), Fielden
patent: 4420721 (1983-12-01), Dorey et al.
patent: 4497010 (1985-01-01), Funahashi
patent: 4589052 (1986-05-01), Dougherty
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4689570 (1987-08-01), Ohgaki et al.
patent: 4754247 (1988-06-01), Raymont et al.
patent: 4810950 (1989-03-01), Young
patent: 4924342 (1990-05-01), Lee
patent: 4945443 (1990-07-01), DeBiasi et al.
patent: 5091690 (1992-02-01), D'Antonio et al.
patent: 5399955 (1995-03-01), Glaser et al.
patent: 5450328 (1995-09-01), Janke et al.
patent: 5461300 (1995-10-01), Kappenman
patent: 5514964 (1996-05-01), Benesh et al.
patent: 5534782 (1996-07-01), Nourse
patent: 5587662 (1996-12-01), Kelley et al.
patent: 5594748 (1997-01-01), Jabr
patent: 5631569 (1997-05-01), Moore et al.
patent: 5631798 (1997-05-01), Seymour et al.
patent: 5650907 (1997-07-01), Ishii et al.
patent: 5657193 (1997-08-01), Purkayastha
patent: 5691871 (1997-11-01), Innes
patent: 5701080 (1997-12-01), Schumacher et al.
patent: 5701226 (1997-12-01), Gelbien et al.
patent: 5808848 (1998-09-01), Pollman et al.
patent: 5818245 (1998-10-01), Allfather
patent: 5931289 (1999-08-01), Chou
patent: 5936817 (1999-08-01), Matsko et al.
patent: 5973899 (1999-10-01), Williams et al.
patent: 6028945 (2000-02-01), Gayle
patent: 6208120 (2001-03-01), Gibbs
patent: 6330140 (2001-12-01), Wilson-Jones et al.
patent: 6456097 (2002-09-01), Sutherland
de Oliveira, A. et al., Practical Approaches for AC System Harmonic Impedance Measurements, IEEE Transactions on Power Delivery, vol. 6, No. 4, Oct. 1991, pp. 1721-1726.
Samesima, M.I. et al., Frequency Response Analysis and Modeling of Measurement Transformers Under Distorted Current and Voltage Supply, IEEE Transactions on Power Delivery, vol. 6, No. 4, Oct. 1991, pp. 1762-1768.
Frankenberg, W. et al., Assessment of Harmonic Interference From Shipborne Converter Equipment for Compliance With Mains Quality Requirements, IEEE Transactions on Power Delivery, vol. 6, No. 4, Oct. 1991, pp. 1735-1739.
Czarnecki, L.S. et al, On-Line Measurement of Equivalent Parameters for Harmonic Frquencies of a Power Distribution System and Load, IEEE Transactions on Instrumentation and Measurement, vol. 45, No. 2, Apr. 1996, pp. 467-472.
Rhode, J.P. et al, Complete Characterization of Utilization-Voltage Power Sytem Impedance Using Wideband Measurement, 1996 IEEE Industrial and Commercial Power Systems Technical Conference Record, pp. 123-130.
Morris Robert A.
Yee Edgar
Cantor & Colburn LLP
General Electric Company
Nguyen Danny
LandOfFree
Circuit breaker incorporating fault lockout protection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit breaker incorporating fault lockout protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker incorporating fault lockout protection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3586367