公开(公告)号：CA2860380C

公开(公告)日：2019-11-26

申请号：CA2860380

申请日：2012-12-19

Applicant: ABB TECHNOLOGY AG

Inventor： SINGH BANDEEP ,  HARTMANN THOMAS A ,  BALLARD ROBERT C

IPC: H01F27/23

Abstract: A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.

公开(公告)号：CA2859655A1

公开(公告)日：2013-06-27

申请号：CA2859655

申请日：2012-12-18

Applicant: ABB TECHNOLOGY AG

Inventor： OUTTEN SAMUEL S ,  HARTMANN THOMAS A ,  KERN JOEL A ,  TERRELL JARRETT ,  NEAL CHESTER M

IPC: H01F27/08 ,  H01F30/12

Abstract: A three-phase non-linear transformer is cooled by first (30) and second fans (40). The first fan (30) is attached to the first core clamps (12) of the transformer using a first mounting structure (15). The second fan (40) is attached to the second core clamps (24) of the transformer using a second mounting structure (17). The first fan is positioned so that air is directed toward a central passage of the core. The second fan is positioned so that air is drawn through the central passage of the core. The first fan circulates air through a central passage in the transformer core and channels that exist between adjacent coil assemblies. The second fan draws air through the central passage and channels and further expels the air into the surrounding environment. The first and second fans are controlled by a control panel through which they are run automatically or manually.

公开(公告)号：IN2794KON2014A

公开(公告)日：2015-05-08

申请号：IN2794KON2014

申请日：2014-12-03

Applicant: ABB TECHNOLOGY AG

Inventor： OUTTEN SAMUEL S ,  HARTMANN THOMAS A

IPC: H01F27/245 ,  H01F27/26

Abstract: A three step non-linear transformer core is formed from three sections of laminations each having different widths and cross-sectional areas. A first section of laminations is formed by cross-slitting a generally rectangular sheet or strip of metal. A resulting generally triangular segment is then wound upon a mold to form a first section of a core frame having a trapezoidal cross section. A second section of laminations is wound upon the first section of laminations to form a segment of a core frame having a rhombic cross section. The third section of laminations is wound upon the second section of laminations to form a segment of a core frame having a trapezoidal cross section. Each of the first, second, and third sections of laminations are offset from one another by a predetermined angle of offset.

公开(公告)号：CA2874171A1

公开(公告)日：2013-12-12

申请号：CA2874171

申请日：2013-06-06

Applicant: ABB TECHNOLOGY AG

Inventor： OUTTEN SAMUEL S ,  HARTMANN THOMAS A

IPC: H01F27/245 ,  H01F27/26 ,  H01F30/12

Abstract: A three step non-linear transformer core is formed from three sections of laminations each having different widths and cross-sectional areas. A first section of laminations is formed by cross-slitting a generally rectangular sheet or strip of metal. A resulting generally triangular segment is then wound upon a mold to form a first section of a core frame having a trapezoidal cross section. A second section of laminations is wound upon the first section of laminations to form a segment of a core frame having a rhombic cross section. The third section of laminations is wound upon the second section of laminations to form a segment of a core frame having a trapezoidal cross section. Each of the first, second, and third sections of laminations are offset from one another by a predetermined angle of offset.

公开(公告)号：CA2860380A1

公开(公告)日：2013-06-27

申请号：CA2860380

申请日：2012-12-19

Applicant: ABB TECHNOLOGY AG

Inventor： SINGH BANDEEP ,  HARTMANN THOMAS A ,  BALLARD ROBERT C

IPC: H01F27/23

Abstract: A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.