Global Patent Index - EP 1074028 A1

EP 1074028 A1 2001-02-07 - DRY-TYPE TRANSFORMER HAVING A GENERALLY RECTANGULAR, RESIN ENCAPSULATED COIL

Title (en)

DRY-TYPE TRANSFORMER HAVING A GENERALLY RECTANGULAR, RESIN ENCAPSULATED COIL

Title (de)

TROCKENTRANSFORMATOR MIT ALLGEMEIN RECHTECKIGER, IN GIESSHARZ EINGEBETTETER WICKLUNG

Title (fr)

TRANSFORMATEUR SEC PRESENTANT UNE BOBINE GENERALEMENT RECTANGULAIRE ENCAPSULEE DANS UNE RESINE

Publication

EP 1074028 A1 (EN)

Application

EP 98913227 A

Priority

US 9806131 W

Abstract (en)

[origin: WO9949481A1] A dry-type power distribution transformer (10) has a generally rectangular, wound ferromagnetic metal core (20) and a resin encapsulated, generally rectangular coil (40). The core has a generally rectangular core window (22) within which is located a substantially straight section of the coil. When assembled to form a power distribution transformer, the shape of the coil's substantially straight section conforms to the shape of the core window. The transformer is inexpensive to manufacture, exhibits low resistivity and low core loss, and is lightweight, compact and reliable in operation.

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

H01F 27/28; H01F 27/25

IPC 8 full level (invention and additional information)

H01F 27/24 (2006.01); H01F 27/25 (2006.01); H01F 27/28 (2006.01)

CPC (invention and additional information)

H01F 27/25 (2013.01); H01F 27/2847 (2013.01); H01F 2027/2857 (2013.01)

Citation (search report)

See references of WO 9949481A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9949481 A1 19990930; AU 6782998 A 19991018; BR 9815771 A 20040413; CA 2326328 A1 19990930; CN 1241215 C 20060208; CN 1292925 A 20010425; EP 1074028 A1 20010207; JP 2002508585 A 20020319

INPADOC legal status


2003-06-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021213

2002-09-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020802

2001-02-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000926

2001-02-07 [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 MC NL PT SE