EP 0254132 B1 19920408 - APPARATUS IN A BALLAST OR TRANSFORMER FOR IMPROVING ITS COOLING
Title (en)
APPARATUS IN A BALLAST OR TRANSFORMER FOR IMPROVING ITS COOLING
Publication
Application
Priority
FI 862944 A 19860715
Abstract (en)
[origin: EP0254132A1] The invention relates to an apparatus in a ballast or transformer for improving its cooling. The ballast or transformer comprises a core sheet pack (1, 2), a winding (6), whose ends extend beyond the core sheet pack, a shell (4) which surrounds the core sheet pack, and a bottom plate (3), to whose side edges (3a) the shell edges (4a) are fastened. Metal plates (5) leaning against the end of winding (6) are fastened to the gables of a housing made up by shell (4) and bottom plate (3). Between the end of winding (6) and said metal plate (5) is arranged a thin insulating layer.
IPC 1-7
IPC 8 full level
H01F 27/02 (2006.01)
CPC (source: EP)
H01F 27/02 (2013.01)
Citation (examination)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0254132 A1 19880127; EP 0254132 B1 19920408; DE 3778080 D1 19920514; FI 78190 B 19890228; FI 78190 C 19890612; FI 862944 A0 19860715; FI 862944 A 19880116
DOCDB simple family (application)
EP 87109829 A 19870708; DE 3778080 T 19870708; FI 862944 A 19860715