EP 2367181 A1 20110921 - Three-phase high performance dry-type transformer with epoxy-insulated coils and method for manufacturing of same
Title (en)
Three-phase high performance dry-type transformer with epoxy-insulated coils and method for manufacturing of same
Title (de)
Dreiphasen-Hochleistungstrockentransformator mit epoxidisolierten Spulen und Verfahren zu seiner Herstellung
Title (fr)
Transformateur de type sec à haute performance et triphasées avec bobines isolées d'époxy et son procédé de fabrication
Publication
Application
Priority
EP 10002974 A 20100320
Abstract (en)
The invention relates to a three-phase high performance dry-type transformer with epoxy insulated coils having a triangular core formed by three core legs which are positioned at the corners of a triangle, whereas the upper ends of each core leg are linked together by an upper yoke and the lower ends of each core leg by a lower yoke, whereas each coil is being wound around its own core leg, and whereas each coil has been provided with reinforcing fibres and cast resin. Furthermore it relates to a method for manufacturing same where a lower yoke is being connected with core legs at the corners of the triangular core, where each core leg is provided with a winding of copper wire, where each winding is laminated with reinforcing fibres or with rovings or with prepregs being made thereof, where in each winding a tube like body is being fitted in order to form a channel provided for discharging heat losses generated during operation, and where each coil is being provided with cast resin, where each coil manufactured according to the aforementioned steps is being shifted on the respective core leg, where the upper yoke is connected to the core legs, and where the electrical installation of the conductors of each coil is finalized.
IPC 8 full level
H01F 30/12 (2006.01); H01F 27/32 (2006.01); H01F 41/12 (2006.01)
CPC (source: EP)
H01F 27/322 (2013.01); H01F 27/327 (2013.01); H01F 30/12 (2013.01); H01F 41/127 (2013.01); H01F 27/25 (2013.01); H01F 2027/328 (2013.01)
Citation (applicant)
- GB 575564 A 19460222 - WESTINGHOUSE ELECTRIC INT CO
- WO 2008108704 A1 20080912 - HEXAFORMER AB [SE], et al
- DE 2051883 B2 19760729
Citation (search report)
- [XI] WO 0025327 A1 20000504 - A T T ADVANCED TRANSFORMER TEC [IL], et al
- [I] DE 4029097 A1 19920319 - MESSWANDLER BAU AG [DE]
- [I] WO 0165572 A2 20010907 - HOEGLUND LENNART [SE]
- [I] US 5202664 A 19930413 - POULSEN PEDER U [US]
- [A] US 2009313812 A1 20091224 - PULNIKOV SERGEY [DE]
- [A] US 2006200971 A1 20060914 - LANOUE THOMAS J [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA ME RS
DOCDB simple family (publication)
EP 2367181 A1 20110921; CN 102792398 A 20121121; WO 2011116850 A1 20110929
DOCDB simple family (application)
EP 10002974 A 20100320; CN 201180014946 A 20110201; EP 2011000436 W 20110201