Global patent index - EP 1060556 A1

EP 1060556 A1 2000-12-20 - ELECTRICITY SUPPLY SYSTEM

Title (en)

ELECTRICITY SUPPLY SYSTEM

Title (de)

STROMVERSORGUNGSYSTEM

Title (fr)

SYSTEME D'APPROVISIONNEMENT EN ELECTRICITE

Publication

EP 1060556 A1 (EN)

Application

EP 98959896 A

Priority

  • EP 9807728 W
  • GB 9725336 A

Abstract (en)

[origin: GB2331856A] An electrical supply system, suitable for traction arrangements, comprises an inductive device with a winding which includes two semi-conducting layers 32, 34, each providing an equipotential surface, with the said layers 32, 34 being separated by a solid insulating layer 33. One layer 23 may be at the same potential as the central conductors 31 whilst the other layer 34 may be connected to earth. The inductive device may be an auto-transformer, a current booster transformer or a rotating converter. The inductive device may be connected to a high voltage three phase distribution line via high voltage switchgear and a transformer. The inductive device may provide a single phase lower voltage traction supply system operating at a frequency of 25 Hz or 16# Hz. One or more transformers may be connected between the output of the inductive device and / or the traction supply line and an intermediate voltage supply line.

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

H02K 3/40

IPC 8 full level (invention and additional information)

B60M 3/02 (2006.01); B60M 3/04 (2006.01); H01B 7/02 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01); H02J 3/00 (2006.01); H02K 3/40 (2006.01); H02K 47/00 (2006.01); H02K 47/20 (2006.01)

CPC (invention and additional information)

H01F 27/288 (2013.01); H01F 27/323 (2013.01); H02K 47/00 (2013.01); H02K 3/40 (2013.01); H02K 2203/15 (2013.01)

Citation (search report)

See references of WO 9929020A1

Designated contracting state (EPC)

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

EPO simple patent family

GB 2331856 A9; GB 2331856 A 19990602; GB 2331856 B 20020227; GB 9725336 D0 19980128; AU 1563199 A 19990616; BG 104516 A 20010131; CA 2310501 A1 19990610; CN 1279839 A 20010110; EA 002747 B1 20020829; EP 1060556 A1 20001220; IL 136074 D0 20010520; JP 2001525279 A 20011211; NO 20002731 A 20000526; NO 20002731 D0 20000526; PL 341739 A1 20010507; TR 200001499 T2 20000921; TW 470977 B 20020101; WO 9929020 A1 19990610; ZA 9810948 B 19990531

INPADOC legal status

2003-08-06 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030129

2001-06-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010427

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000623

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IT LI LU NL PT SE

2000-12-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: LT PAYMENT 20000623