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:
Jun. 09, 2020
Filed:
May. 09, 2017
Applicant:
General Electric Technology Gmbh, Baden, GB;
Inventors:
Assignee:
GENERAL ELECTRIC TECHNOLOGY GMBH, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 3/00 (2006.01); H02J 3/36 (2006.01); H02M 5/04 (2006.01);
U.S. Cl.
CPC ...
H02J 3/36 (2013.01); H02M 5/04 (2013.01); Y02E 60/60 (2013.01);
Abstract
The present invention provides methods and apparatus for controlling HVDC power transmission systems so as to increase the effective lifetime of cables carrying the DC power (and particularly the extruded polymer insulation of those cables). The method includes entering a maintenance mode in which the electrical properties applied to the cable are varied so as to facilitate diffusion of space charge accumulation in the extruded polymer insulation.