Invention Grant
- Patent Title: Electric insulation material, an electric device comprising the insulation material and a transformer
- Patent Title (中): 电绝缘材料,包括绝缘材料和变压器的电气装置
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Application No.: US12825011Application Date: 2010-06-28
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Publication No.: US08178780B2Publication Date: 2012-05-15
- Inventor: Olof Hjortstam , Rongsheng Liu , Albert Jaksts , Leif A. Pettersson
- Applicant: Olof Hjortstam , Rongsheng Liu , Albert Jaksts , Gunilla Eken, legal representative , Leif A. Pettersson
- Applicant Address: CH
- Assignee: ABB Research Ltd.
- Current Assignee: ABB Research Ltd.
- Current Assignee Address: CH
- Agency: St. Onge Steward Johnston & Reens LLC
- Priority: EP07124090 20071227
- Main IPC: H01B17/34
- IPC: H01B17/34

Abstract:
An electric insulation material for an electric device includes one or several electrical conductors and an electric insulation material arranged around the conductor or between the conductors, which insulation material is impregnated with a dielectric insulation liquid. The electric insulation material includes a main layer that is provided with a surface layer that has a dielectric constant that is lower than the dielectric constant of the main layer.
Public/Granted literature
- US20110030987A1 Electric Insulation Material, An Electric Device Comprising The Insulation Material And A Transformer Public/Granted day:2011-02-10
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