EP 0043511 B1 19840926 - DEVICE USING THE HEAT LOSSES OF INTERNALLY FLUID-COOLED TRANSFORMERS OR CHOKES
Title (en)
DEVICE USING THE HEAT LOSSES OF INTERNALLY FLUID-COOLED TRANSFORMERS OR CHOKES
Publication
Application
Priority
DE 3025661 A 19800707
Abstract (en)
[origin: US4456899A] Method and device of utilizing, through heat exchanger or heat pump provided in addition to a normal cooling system, heat due to energy loss in a coil device, such as a transformer or a choke coil having a liquid-cooled interior, which includes throttling the normal cooling system so as to set a difference between the temperature of the interior liquid coolant, at a location under a casing cover of the coil device, and a maximum permissible temperature for a normal useful life of insulation for the coil winding so that the temperature of the inner coolant is lower when the coil device is under full load than when it is under partial load.
IPC 1-7
IPC 8 full level
H01F 27/08 (2006.01); F24D 11/00 (2006.01); H01F 27/12 (2006.01); H01F 27/16 (2006.01)
CPC (source: EP US)
F24D 11/005 (2013.01 - EP US); F28D 21/0001 (2013.01 - EP); F28F 27/02 (2013.01 - EP); H01F 27/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH FR IT LI NL SE
DOCDB simple family (publication)
EP 0043511 A1 19820113; EP 0043511 B1 19840926; AT E9626 T1 19841015; CA 1179423 A 19841211; DE 3025661 A1 19820204; DE 3025661 C2 19821104; DK 150049 B 19861124; DK 150049 C 19870511; DK 297881 A 19820108; JP S5752115 A 19820327; US 4456899 A 19840626
DOCDB simple family (application)
EP 81104933 A 19810625; AT 81104933 T 19810625; CA 381133 A 19810706; DE 3025661 A 19800707; DK 297881 A 19810706; JP 10433981 A 19810703; US 27952881 A 19810701