Global Patent Index - EP 0993010 A2

EP 0993010 A2 20000412 - Tap changer for electric transformers

Title (en)

Tap changer for electric transformers

Title (de)

Stufenschalter für elektrische Transformatoren

Title (fr)

Sélecteur de prises pour transformateur électrique

Publication

EP 0993010 A2 20000412 (EN)

Application

EP 99116761 A 19990830

Priority

IT PD980094 U 19981006

Abstract (en)

A tap changer (10) particularly for electric transformers, comprising a rod-like body (11) which rigidly supports fixed pin-like contacts (13) arranged at right angles and in series along the rod-like body, the rod-like body constituting a sliding guide for a sliding block (12b) associated with actuation means which can be actuated by the user, the sliding block having at least one support (14) for a corresponding pair of skid-like movable contacts which are slideable on the fixed contacts (13) in mutually opposite positions and are adapted to interfere with two of the fixed contacts (13) alternately and in succession; the at least one support (14) comprises a base (16) from which two mutually parallel walls (17) for sliding on the rod-like body protrude, the base being shaped so as to form seats for the two movable contacts, each one of the movable contacts being shaped so as to form at least one anchoring tab which is shaped complementarily to a corresponding guide for retaining the base, a spring (23) being provided which is shaped so as to have two pairs of arms which force the movable contacts (15) toward each other. <IMAGE>

IPC 1-7

H01H 9/00; H01H 1/36; H01H 3/40

IPC 8 full level

H01H 9/00 (2006.01); H01H 3/40 (2006.01); H01H 9/28 (2006.01)

CPC (source: EP)

H01H 9/0016 (2013.01); H01H 3/40 (2013.01); H01H 9/0027 (2013.01); H01H 9/28 (2013.01); H01H 9/281 (2013.01)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0993010 A2 20000412; EP 0993010 A3 20010905; EP 0993010 B1 20060510; AT 326058 T 20060615; DE 69931229 D1 20060614; DE 69931229 T2 20070301; DK 0993010 T3 20060918; ES 2264817 T3 20070116; IT 245092 Y1 20020319; IT PD980094 U1 20000406; PT 993010 E 20060929

DOCDB simple family (application)

EP 99116761 A 19990830; AT 99116761 T 19990830; DE 69931229 T 19990830; DK 99116761 T 19990830; ES 99116761 T 19990830; IT PD980094 U 19981006; PT 99116761 T 19990830