Global Patent Index - EP 0978131 A1

EP 0978131 A1 2000-02-09 - CIRCUIT ARRANGEMENT FOR A LOAD TRANSFER SWITCH

Title (en)

CIRCUIT ARRANGEMENT FOR A LOAD TRANSFER SWITCH

Title (de)

SCHALTUNGSANORDNUNG BEI EINEM LASTUMSCHALTER

Title (fr)

CIRCUIT POUR UN COMMUTATEUR DE REGLAGE EN CHARGE

Publication

EP 0978131 A1 (DE)

Application

EP 98916614 A

Priority

  • AT 9800103 W
  • AT 67997 A

Abstract (en)

[origin: WO9848432A1] The invention concerns a circuit for a load transfer switch comprising a regulating winding with a regulating stage (1) whose load current can be conducted via a lower or a higher winding tap (2, 3) and via at least two selector contacts (4, 5) and two permanent contacts (6, 7) with a common terminal lead (8). Switching from the lower to the higher winding tap or vice versa occurs via a first load transfer switch (9), wherein contact (10) is located in the connection of the selector contact (4) to the permanent contact (6) and the contact (11) is placed in the connection of the selector contact (5) to the permanent contact (7). The root contact of the first load transfer switch is connected via a transition resistor (13) and a bridging switch (14) in series to the common terminal lead (8). A second load transfer switch (15) is provided, wherein contact (16) is once again connected to the connection of the selector contact (4) to the permanent contact (6) and contact (17) is connected to the connection of selector contact (5) to permanent contact (7). The root contact (18) of said second load transfer switch (15) is connected to the connection of the transition resistor (13) and the bridging switch (14) by means of a thyristor circuit (19). The thyristor circuit (19) has antiparallel-connected thyristors.

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

H01F 29/04

IPC 8 full level (invention and additional information)

H01F 29/04 (2006.01)

CPC (invention and additional information)

H01F 29/04 (2013.01); H01H 9/0005 (2013.01); H01H 9/542 (2013.01)

Citation (search report)

See references of WO 9848432A1

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI SE

DOCDB simple family

WO 9848432 A1 19981029; AT 203124 T 20010715; AT 406988 B 20001127; AT A67997 A 20000315; AU 7012098 A 19981113; DE 59801004 D1 20010816; EP 0978131 A1 20000209; EP 0978131 B1 20010711