Patent · US Active

High voltage surge arrester

US8717732B2 · kind B2 · utility

2Cited by

5References

10Claims

0Family size

Assignee

ABB RESEARCH LTD. · CH

Inventors

Lennart Stenstrom · Ludvika, SE
Linnea Petersson · Hagfors, SE
Xavier Kornmann · Lauchringen, DE
Henrik Hillborg · Hagfors, SE

Key dates

Filing date	Jun 4, 2012
Grant date	May 6, 2014
Priority date	—
Expiry date	Jun 4, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01C7/126
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high voltage surge arrester, including a varistor element arranged so as to be connected to a high voltage source and to carry a high voltage when being positioned in its operative position, and an electric insulator that encloses and is in contact with the varistor element and forms an outer surface of the apparatus, wherein the electric insulator includes a silicone-based rubber. The silicone based rubber includes particles chosen from the group consisting of Al2O3, BN and ZnO, to such an extent that the thermal conductivity of the silicone-based rubber is equal to or above 0.8 W/mK.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.