Global Patent Index - EP 1016099 A1

EP 1016099 A1 2000-07-05 - HORIZONTAL AIR-COOLING IN A TRANSFORMER

Title (en)

HORIZONTAL AIR-COOLING IN A TRANSFORMER

Title (de)

TRANSFORMATOR MIT HORIZONTALER LUFTKÜHLUNG

Title (fr)

REFROIDISSEMENT D'UN TRANSFORMATEUR PAR AIR HORIZONTAL

Publication

EP 1016099 A1 (EN)

Application

EP 98902353 A

Priority

  • SE 9800156 W
  • SE 9700341 A
  • SE 9704415 A

Abstract (en)

[origin: WO9834239A1] A power transformer comprising a transformer core wound with a high-voltage cable (111), wherein the cable comprises an electrically conducting core surrounded by an inner semiconducting layer (113), an insulating layer (114) surrounding the inner semiconducting layer (113) and consisting of solid material, and an outer semiconducting layer (115) surrounding the insulating layer, said layers (113, 114, 115) being adhered to each other and that the winding is provided with spacers (3) arranged to separate each cable turn in axial direction in the winding in order to create disc-shaped cooling ducts, said winding being provided with at least one fan (7) arranged to either force or suck air through all turns of the winding perpendicularly to the leg (2) of the transformer core.

IPC 1-7 (main, further and additional classification)

H01F 27/08

IPC 8 full level (invention and additional information)

H01F 27/08 (2006.01); H01F 27/32 (2006.01)

CPC (invention and additional information)

H01F 27/085 (2013.01); H01F 27/322 (2013.01)

Citation (search report)

See references of WO 9834239A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9834239 A1 19980806; AU 5890798 A 19980825; EP 1016099 A1 20000705; JP 2001509960 A 20010724; SE 9704415 D0 19971128

INPADOC legal status


2004-03-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030902

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990903

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

2000-07-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LT PAYMENT 19990903;LV PAYMENT 19990903;RO PAYMENT 19990903;SI PAYMENT 19990903