Method of detecting a fault section of busbar

Details Method of detecting a fault section of busbar Method of detecting a fault section of busbar

1993-12-06

1996-10-15

Trammell, James P.

Boots, shoes, and leggings

364483, 324522, 324539, 324543, 361 63, 361 87, G01R 3108

Patent

active

055660827

ABSTRACT:
The method is to detect a fault on a busbar and to specify the faulted point to a specific section of the busbar in order to provide a proper protection. If the fault has occurred, for instance, on a point P of a section between current transformer BCT- and a connecting point thereof to the busbar, or on a point Q of a busbar section between adjacent line outlets, the resulting fault current is expressed as a calculation sum of an output current of the current transformer BCT-. The foregoing current is zero in a normal condition, but in case of a fault, it reaches a definite value other than zero. Noticing this point, the fault current is computed for each section on the basis of the observable output current of the current transformer BCT-, and it is judged that if the foregoing current of a specific section exceeds a predetermined threshold, the fault has occurred on the above section.

REFERENCES:
patent: 3771049 (1973-11-01), Piccione
patent: 4096539 (1978-06-01), Scaturro
patent: 4290013 (1981-09-01), Thiel
patent: 4314199 (1982-02-01), Yamaura et al.
patent: 4459693 (1984-07-01), Prang et al.
patent: 4464621 (1984-08-01), Prigent et al.
patent: 4514845 (1985-04-01), Starr
patent: 4855861 (1989-08-01), Bergman et al.
patent: 5043655 (1991-08-01), Anholm, Jr. et al.
patent: 5125738 (1992-06-01), Kawamura et al.
patent: 5138257 (1992-08-01), Katsura
patent: 5138265 (1992-08-01), Kawamura et al.
patent: 5250894 (1993-10-01), Bridges et al.
patent: 5399974 (1995-03-01), Eriksson et al.

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