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:
May. 24, 2022
Filed:
Oct. 04, 2019
Hitachi Energy Switzerland Ag, Baden, CH;
Yibo Zhang, Beijing, CN;
JianSheng Chen, Beijing, CN;
Lise Donzel, Wettingen, CH;
Pierre Elser, Zürich, CH;
Robin Gremaud, Zürich, CH;
ZhiQiang Tao, Beijing, CN;
Rico Gasparini, Ennetbaden, CH;
Ulrich Straumann, Winterthur, CH;
Uwe Riechert, Glattfelden, CH;
HITACHI ENERGY SWITZERLAND AG, Baden, CH;
Abstract
An insulation material for a DC electrical component. The insulation material includes a thermoset or thermoplastic matrix and a functional filler component. The functional filler component has a non-linear DC conductivity depending on an applied electrical field strength. At least in a temperature range of 0° C. to 120° C., the functional filler component has a bandgap in the range of 2 to 5 eV, and optionally in the range of 2 to 4 eV. Furthermore, a method for producing an insulation material, a use of an insulation material for a high voltage DC electrical component, a DC electrical component comprising the insulation material and the use of a DC electrical component comprising the insulation material in a high voltage DC gas insulated device are suggested.