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:
Aug. 17, 1999
Filed:
Sep. 29, 1995
Applicant:
Inventor:
Wayne Zavis, Cary, NC (US);
Assignee:
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 42 ; 361 93 ; 361115 ;
Abstract
A method and apparatus for monitoring multi-phase alternating current signals and providing a signal representative of each phase current signal. Each alternating current signal is rectified by a direct current output rectifier to generate a signal representative of both the phase and magnitude of the alternating current signal. The method and apparatus also provides for using the output signal to operate a circuit breaker in a ground fault detection system.