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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4251766 B1

PDFFull Text
Date of Patent:
Feb. 17, 1981

Filed:

Feb. 08, 1978

Method and apparatus for determining the direction of a fault on a power

Applicant:
Inventor:

Michel Souillard, Fontenay aux Roses, FR;

Assignee:

Enertec, Montrouge, FR;

Attorneys:

Ishimaru; Mikio

Kaliko; Joseph J.

Gaudier; Dale V.

Primary Examiner:

Gerard R Strecker

Int. Cl.
CPC ...
G01R / ; H02H / ;
U.S. Cl.
CPC ...
324 52 ; 361 80 ;
Abstract

Directional relay and method for monitoring at least one A.C. power transmission line to determine the position of a fault on the line with respect to a measurement location thereon. According to a representative embodiment characteristic parameters, typically the respective phases, of a first signal representing the difference of complex voltages after and before the occurrence of the fault and of a second signal representing the line current after the occurrence of the fault, are compared, the result of the comparison providing the desired indication.

Find Patent Forward Citations

Souillard, Michel. (1981). Method and apparatus for determining the direction of a fault on a power (U.S. Patent No. 4251766). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4251766

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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