EP 0061608 A1 19821006 - Air-cooled dry type transformer or inductance.
Title (en)
Air-cooled dry type transformer or inductance.
Title (de)
Trockentransformator oder Drosselspule mit Luftkühlung.
Title (fr)
Transformateur ou inductance du type à sec refroidi par air.
Publication
Application
Priority
DE 3113139 A 19810401
Abstract (en)
Air-cooled dry-type transformers or air-cooled inductances with at least one winding, arranged about the core and cast in a solidified cast mass, and axially running cooling channels between the windings and/or the winding and the core, in which at least one earthed, electrically conductive, non-magnetic screen (14), extending above the height of the winding, is arranged between at least in each case two windings and/or between the winding next to the core and the core, circumferentially surrounding, or virtually surrounding, the core. On at least one side, the screen is fastened to a compact cast-mass sleeve, allocated to a winding and bounding an air channel, or is cast into the cast mass, at least the inner side (air channel side) of the high-tension winding, if fitted, being provided with a screen (14). The screen (14) consists preferably of a cylindrically bent metal-wire gauze. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 27/02 (2006.01); H01F 27/08 (2006.01); H01F 27/32 (2006.01); H01F 27/36 (2006.01)
CPC (source: EP US)
H01F 27/022 (2013.01 - EP); H01F 27/327 (2013.01 - EP); H01F 27/36 (2013.01 - EP); H01F 27/363 (2020.08 - EP US); H01F 2027/328 (2013.01 - EP)
Citation (search report)
- [X] DE 1258966 B 19680118 - MAY & CHRISTE GES MIT BESCHRAE
- [A] FR 564658 A 19240108 - THOMSON HOUSTON COMP FRANCAISE
- [A] FR 2248595 A1 19750516 - WESTINGHOUSE ELECTRIC CORP [US]
- [A] DE 2548376 A1 19770505 - HEIBL GMBH APPARATEBAU W
- [A] DE 1161643 B 19640123 - LICENTIA GMBH
- [A] DE 1268724 B 19680522 - LIEBKNECHT TRANSFORMAT
- [A] FR 2155913 A2 19730525 - BONNEFOND BERNARD ATEL
- [A] DE 2161823 A1 19720706 - MATSUSHITA ELECTRIC IND CO LTD
- [A] US 3708875 A 19730109 - MARTINCIC P, et al
- [A] DE 1263184 B 19680314 - TRANSFORM ROENTGEN MATERN VEB
- [X] BULL. SEV/VSE, Band 66, Nr. 4, 22. Februar 1975,
Designated contracting state (EPC)
AT BE CH FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0061608 A1 19821006; DE 3113139 A1 19821021; JP S5812313 A 19830124
DOCDB simple family (application)
EP 82101788 A 19820306; DE 3113139 A 19810401; JP 5522982 A 19820401