Patent · US Active

Insulating system made of solid insulating material and impregnating resin

US12417861B2 · kind B2 · utility

0Cited by

15References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Florian Schemmel · Nuremberg, DE
Steffen Lang · Hallerndorf, DE
Manfred Ochsenkühn · Starnberg, DE
Niels Müller · Nuremberg, DE
Marek Maleika · Fürth, DE

Key dates

Filing date	Jul 7, 2021
Grant date	Sep 16, 2025
Priority date	—
Expiry date	Aug 3, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01B3/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates generally to the field of insulating electrical conductors against partial discharge in the medium- and high-voltage ranges. In particular, the invention relates to an insulating system for an electric machine, in particular a rotating electric machine such as an electric motor and/or a generator. The invention provides for the first time a substitute for the conventionally used mica as a barrier material in an insulating system, such as the main insulation of rotating electric machines such as motors and/or generators. The substitute is based on a polyether-imide/siloxane copolymer, which can be processed two-dimensionally, for example by surface extrusion. In this way, sheets are produced and, after being processed in sheet form or as a laminate, can be used as planar insulating materials, or cut as strips, in insulating systems.

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