公开(公告)号：JPH11262211A

公开(公告)日：1999-09-24

申请号：JP17198198

申请日：1998-05-15

Applicant: ABB RESEARCH LTD

Inventor： BAUMANN THOMAS DR ,  OESTERHELD JOERG DR ,  SCHULER ROLAND

IPC: H02K3/30 ,  H01B3/04 ,  H01B3/50 ,  H02K3/34 ,  H02K3/40

Abstract: PROBLEM TO BE SOLVED: To constitute a stator wire insulating member having a satisfactory dielectric characteristic and a heat characteristic, by setting the capacity ratio of a warp against a weft in a layer-like supporting body, and the weight ratio of micro mica against the layer-like supporting body in a mica band material to be not less than specified values which are separately decided. SOLUTION: A layer-like supporting body 4 is formed as an inorganic glass textile layer, by filling epoxy resin 8 in a space between adjacent glass threads. The capacity ratio of a warp 7a against a weft 7b is set to be larger than 2.5:1 or similar to it. The weight ratio of a mica paper layer constituted of fine mica against the layer-like supporting body 4 is set larger than 6:1 or similar to it so as to constitute a mica band material 11. Thus, the dielectric characteristic and the heat characteristic of the main insulating part of a stator wire can be improved.

公开(公告)号：JPH11332154A

公开(公告)日：1999-11-30

申请号：JP10975499

申请日：1999-04-16

Applicant: ABB RESEARCH LTD

Inventor： BAUMANN THOMAS DR ,  FRIED REINHARD ,  JOHO REINHARD ,  OESTERHELD JOERG DR

IPC: H02K3/34 ,  H02K3/40 ,  H02K15/12

Abstract: PROBLEM TO BE SOLVED: To provide a winding bar whose maximum electric field strength at an edge region is decreased, without making the thickness of an insulator large. SOLUTION: In a winding bar 10, which is for a high-voltage winding of an electric machine especially for a stator winding, has piled-up conductors 13 whose bundle has a rectangular cross section, and is surrounded by an insulator 14 around, an electric field strength improved at edges as a whole is achieved without changing the insulator thickness. This is performed by making a thickness d2 of the insulator 14 at an edge 15 of the winding bar 10 larger than the thickness d1 of the insulator 14 at a flat surface of the winding bar 10. In this case, it is preferable that a correcting process is performed for forming the edge regions.

公开(公告)号：JP2000197300A

公开(公告)日：2000-07-14

申请号：JP37569799

申请日：1999-12-28

Applicant: ABB RESEARCH LTD

Inventor： OESTERHELD JOERG DR ,  GASPARINI RICO ,  BAUMANN THOMAS DR

IPC: B32B1/08 ,  F16L11/112 ,  H02K3/30 ,  H02K3/50

Abstract: PROBLEM TO BE SOLVED: To facilitate the assembly of a conductor and form a supporting section having a high ridigity in such a structure that a mechanical creep to be generated may be minimum, by covering a bundle of glass fibers with a tightly woven glass woven cloth tube and then surrounding the glass woven fabric tube with a polymer layer and another tightly woven glass woven cloth tube. SOLUTION: A bundle of glass fibers 1 is covered with a tightly woven inside glass woven fabric tube 2. Outside the inside glass woven fabric tube 2, an airtight and liquidtight flexible polymer layer 3 is formed. Then, the polymer layer 3 is covered with a tightly woven outside glass woven fabric tube 4. The polymer layer 3 is formed by extrusion molding or lacquer finish so as to cover the inside glass woven fabric tube 2. As a result, a part of a pressure tube fastened with a winding element can be completely hardened at the time of heat treatment, thereby securing a complete and excellent mechanical characteristic for a thermosetting system.

公开(公告)号：AT208969T

公开(公告)日：2001-11-15

申请号：AT98810292

申请日：1998-04-07

Applicant: ABB RESEARCH LTD

Inventor： BAUMANN THOMAS DR ,  OESTERHELD JOERG DR ,  SCHULER ROLAND

IPC: H02K3/30 ,  H01B3/04 ,  H01B3/50 ,  H02K3/34 ,  H02K3/40

Abstract: The stator winding insulation uses a mica band (11) with a carrier layer (4) provided with longitudinal and transverse threads (7a,7b), to which a layer (5) containing mica and a binder material is applied on at least one side. The volume ratio between the longitudinal threads and the transverse threads in the carrier layer is at least 2.5 : 1, the applied layer containing fine mica particles with a high packing density. The weight ratio of the mica particles to the carrier layer within the mica band is 6 or above.

公开(公告)号：DE19720555A1

公开(公告)日：1998-11-19

申请号：DE19720555

申请日：1997-05-16

Applicant: ABB RESEARCH LTD

Inventor： BAUMANN THOMAS DR ,  OESTERHELD JOERG DR ,  SCHULER ROLAND

IPC: H02K3/30 ,  H01B3/04 ,  H01B3/50 ,  H02K3/34 ,  H02K3/40

Abstract: The stator winding insulation uses a mica band (11) with a carrier layer (4) provided with longitudinal and transverse threads (7a,7b), to which a layer (5) containing mica and a binder material is applied on at least one side. The volume ratio between the longitudinal threads and the transverse threads in the carrier layer is at least 2.5 : 1, the applied layer containing fine mica particles with a high packing density. The weight ratio of the mica particles to the carrier layer within the mica band is 6 or above.