Global Patent Index - EP 1488489 A1

EP 1488489 A1 2004-12-22 - ANALOGUE ELECTRONIC TRIP DEVICE FOR AN ELECTRICAL POWER BREAKER RESPONDING TO A SHORT-CIRCUIT

Title (en)

ANALOGUE ELECTRONIC TRIP DEVICE FOR AN ELECTRICAL POWER BREAKER RESPONDING TO A SHORT-CIRCUIT

Title (de)

AUF KURZSCHLUSS ANSPRECHENDE ANALOGELEKTRONISCHE AUSLÖSEEINRICHTUNG FÜR EINEN ELEKTRISCHEN LEISTUNGSSCHALTER

Title (fr)

DISPOSITIF DE DECLENCHEMENT ANALOGIQUE ELECTRONIQUE REAGISSANT AUX COURTS-CIRCUITS POUR UN DISJONCTEUR ELECTRIQUE

Publication

EP 1488489 A1 (DE)

Application

EP 03744762 A

Priority

  • DE 0300896 W
  • DE 10214234 A

Abstract (en)

[origin: WO03081741A1] The invention relates to a trip device for an electrical power breaker (LS), for tripping on a short-circuit and embodied as an analogue electrical circuit. The circuit components and devices necessary for tripping on a short circuit form a discrete module, completely independent of other trip devices on the power breaker (LS). A direct current is provided by transformers (6, 7, 8) together with rectifiers (9, 10, 11) which flows through a power semiconductor (12) switched to conduct in the normal operating state of the power breaker (LS). A measurement and control circuit (13) is controlled by means of a voltage generated across a measuring resistance (14) through which the direct current flows and closes the power semiconductor (12) when a threshold value is exceeded. The current is then commutated from the power semiconductor (12) to the trip magnet (5) which opens the switch contacts (1, 2 and 3) with a particularly small delay.

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

H02H 1/06

IPC 8 full level (invention and additional information)

H02H 1/06 (2006.01); H02H 1/00 (2006.01)

CPC (invention and additional information)

H02H 1/063 (2013.01); H02H 1/0007 (2013.01)

Citation (search report)

See references of WO 03081741A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

EPO simple patent family

WO 03081741 A1 20031002; CN 1643757 A 20050720; DE 10214234 A1 20031023; EP 1488489 A1 20041222; US 2005141163 A1 20050630

INPADOC legal status


2009-03-25 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20081001

2004-12-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20040813

2004-12-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR