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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.:

US 10855063 B1

PDFFull Text
Date of Patent:
Dec. 01, 2020

Filed:

Jan. 12, 2018

Method in the manufacturing of an insulated electric high voltage dc termination or joint

Applicant:

Nkt Hv Cables Ab, Lyckeby, SE;

Inventors:

Carl-Olof Olsson, Västerås, SE;

Markus Saltzer, Fislisbach, CH;

Anders Lindgren, Karlskrona, SE;

Assignee:

NKT HV CABLES AB, Lyckeby, SE;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

A Dexter Tugbang

Int. Cl.
CPC ...
H02G 1/14 (2006.01); H01B 13/016 (2006.01); H02G 1/16 (2006.01); H02G 1/12 (2006.01); H02G 15/18 (2006.01); H02G 15/00 (2006.01); H01B 13/00 (2006.01); H02G 15/068 (2006.01); H02G 15/188 (2006.01);
U.S. Cl.
CPC ...
H02G 1/14 (2013.01); H01B 13/0016 (2013.01); H01B 13/0026 (2013.01); H01B 13/0162 (2013.01); H01B 13/0165 (2013.01); H02G 1/12 (2013.01); H02G 1/16 (2013.01); H02G 15/003 (2013.01); H02G 15/18 (2013.01); H02G 15/068 (2013.01); H02G 15/188 (2013.01); Y10T 29/49119 (2015.01); Y10T 29/49123 (2015.01);
Abstract

A method in the manufacturing of an insulated electric high voltage DC termination or joint includes providing an insulated electric high voltage DC cable including a high voltage DC conductor, a polymer based insulation system surrounding the high voltage DC conductor, the polymer based insulation system including an insulation layer and a semiconducting layer surrounding the insulation layer, and a grounding layer surrounding the semiconducting layer; removing the grounding layer and the semiconducting layer in at least one end portion of the high voltage DC cable, mounting a field grading adapter or joint body in the at least one end portion of the high voltage DC cable; and subjecting the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable for a heat treatment procedure, while being covered by the mounted field grading adapter or joint body.

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