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.

Date of Patent:
Dec. 31, 2002

Filed:

Aug. 24, 2000
Applicant:
Inventor:

David D. Elmore, Somersworth, NH (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/504 ; G01R 2/106 ;
U.S. Cl.
CPC ...
G01R 3/504 ; G01R 2/106 ;
Abstract

High speed multifunction testing and calibration of electronic electricity meters comprises whole cycle synchronized testing. More specifically, start and end test commands defining a test interval synchronized to whole cycles of the pulsating a.c. potentials and currents are signaled by a meter under test (MUT) to a plurality of standard meters, during which multiple electrical quantities are accumulated by both the MUT and the standard meters. The MUT accumulated quantities and the accumulated quantities of the standard meters are communicated to the external test device for comparison. These comparisons may be used by the external test device to calculate coefficients for correcting or calibrating the MUT. The coefficients are transmitted to the MUT where they are incorporated into the algorithms for calculation of the desired electrical quantities.


Find Patent Forward Citations

Loading…