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. 28, 2025
Filed:
Nov. 11, 2022
Nkt Hv Cables Ab, Lyckeby, SE;
Ola Thyrvin, Karlskrona, SE;
Vilhelm Rydén, Karlskrona, SE;
NKT HV Cables AB, Lyckeby, SE;
Abstract
The invention is concerned with a method, arrangement, computer program and computer program product for estimating the thermal resistivity of soil surrounding an underground cable. The arrangement comprises a thermal resistivity estimating unit that obtains a first temperature (T) from a first temperature sensor at an exterior surface of the cable, obtains a second temperature (T) from a second temperature sensor placed in the soil at a distance from the cable, obtains a measurement of current (I) transmitted in the cable and estimates the thermal resistivity of soil based on the first and the second temperatures (T, T) as well as on the current measurement (I).