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:
Oct. 01, 2002
Filed:
Apr. 02, 2001
Applicant:
Inventor:
Thaddeus M. Jones, Bremen, IN (US);
Assignee:
MSX, Inc., South Bend, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/114 ; G01R 3/108 ; G01R 2/500 ; H02H 9/08 ; G01N 3/700 ;
U.S. Cl.
CPC ...
G01R 3/114 ; G01R 3/108 ; G01R 2/500 ; H02H 9/08 ; G01N 3/700 ;
Abstract
An apparatus and a method of controlling a load in response to a ground fault condition includes measuring a ground fault alternating current flowing from the load. A real part and an imaginary part of the ground fault alternating current is ascertained. Electrical power is removed from the load and/or the ground fault condition is indicated to a user if a magnitude of the real part exceeds a first predetermined threshold and/or a magnitude of the imaginary part exceeds a second predetermined threshold.