Title:
ELECTROMAGNETIC DEVICE
Document Type and Number:
WIPO Patent Application WO1997045921
Kind Code:
A3
Abstract:
The present invention relates to a power transformer/reactor ( 14, 15, 16 ) for high voltages, comprising at least one winding having at least one current-carrying conductor. The winding comprises a solid insulation ( 7 ) surrounded by outer and inner layers ( 8,6 ) serving for equalization of potential and having semiconducting properties. The layers ( 6,8 ) and the insulation ( 7 ) adhere along essentially the whole of its contact surfaces. Said conductor is arranged interiorly of the inner semiconducting layer ( 6 ). The outer layer ( 8 ) is connected to ground or otherwise relatively low potential. Said solid insulation in the windings constitute substantially the total electrical insulation in the power transformer/reactor.
Inventors:
LEIJON MATS (SE)
Application Number:
PCT/SE1997/000879
Publication Date:
January 22, 1998
Filing Date:
May 27, 1997
Export Citation:
Assignee:
ASEA BROWN BOVERI (SE)
LEIJON MATS (SE)
LEIJON MATS (SE)
International Classes:
H01F3/10; H01F3/14; H02M7/04; H01F27/00; H01F27/28; H01F27/32; H01F27/34; H01F29/14; H02H3/02; H02J3/36; H02K3/14; H02K3/28; H02K3/40; H02K3/48; H02K15/00; H02K15/12; H02K9/19; (IPC1-7): H02K3/40; H01F27/00
Foreign References:
| US5036165A | 1991-07-30 | |||
| US4853565A | 1989-08-01 | |||
| SU955369A1 | 1982-08-30 | |||
| US4429244A | 1984-01-31 |
Download PDF:
Previous Patent: A CONDUCTOR FOR HIGH-VOLTAGE WINDINGS, AND A PROCESS FOR PREPARING SUCH CONDUCTOR
Next Patent: SYNCHRONOUS COMPENSATOR PLANT
Next Patent: SYNCHRONOUS COMPENSATOR PLANT