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.:
Date of Patent:
Jul. 21, 1981
Filed:
Aug. 27, 1979
Applicant:
Inventor:
John M Houston, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
3241 / ; 324127 ;
Abstract
A saturable magnetic reactor is disposed about one of the current-carrying conductors in a DC power transmission line. A zero-current status for the transmission line is sensed by means of impedance changes in the reactor. A step-down transformer cascade electromagnetically couples the saturable reactor to impedance detection means, which means typically comprise an oscillator driven bridge circuit.