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:
Nov. 14, 2023
Filed:
Jan. 21, 2022
Applicant:
G & W Electric Company, Bolingbrook, IL (US);
Inventors:
Assignee:
G & W ELECTRIC COMPANY, Bolingbrook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H01F 21/00 (2006.01); H01F 38/20 (2006.01); H01F 7/06 (2006.01);
U.S. Cl.
CPC ...
H01F 21/00 (2013.01); H01F 7/064 (2013.01); H01F 38/20 (2013.01);
Abstract
Systems and methods for calibrating a low-power voltage transformer (LPVT). Systems include a capacitive voltage divider and a variable capacitance device connected to the capacitive voltage divider. A parameter of the variable capacitance device is adjusted to minimize the ratio error of the LPVT. Methods include connecting a variable capacitance device to a capacitive voltage divider of the LPVT system, measuring a ratio error of the LPVT system based on an output of the variable capacitance device, and adjusting a parameter of the variable capacitance device.