EP 0668598 B1 19970402 - Current transformer with annular core to be built in a metal cast high-tension switchgear installation
Title (en)
Current transformer with annular core to be built in a metal cast high-tension switchgear installation
Title (de)
Ringkernstromwandler zum Einbau in eine metallgekapselte Hochspannungsschaltanlage
Title (fr)
Transformateur de courant à noyau annulaire destiné à être monté dans une installation de commutation à haute tension encapsulée en métal
Publication
Application
Priority
EP 94102403 A 19940217
Abstract (en)
[origin: EP0668598A1] The transformer has at least one ring core (4,5,6), with a secondary winding (1,2,3), arranged in the capsule (9,10). A primary conductor (7) runs in the opening of the core(s) (4,5,6). An inner tube (11) is arranged between the core (4,5,6) and the primary conductor (7). One end of the tube (11) is electrically connected to the capsule (10). Its other end is separated from the capsule (9) by an insulating gap (14). Its other points are electrically insulated from the capsule (9,10). Each ring core (4,5,6) has its outer coaxial boundary surface on the inner surface of the capsule (9). Each bounding surface extending perpendicular to the longitudinal axis of the conductor (7) and not lying directly on the capsule (9,10), lies on an annular conductive disc (15,16,17,22). The latter is conductively connected with the inner surface of the capsule (9).
IPC 1-7
IPC 8 full level
H01F 38/30 (2006.01)
CPC (source: EP)
H01F 38/30 (2013.01); H01F 2038/305 (2013.01)
Designated contracting state (EPC)
AT CH DE LI
DOCDB simple family (publication)
EP 0668598 A1 19950823; EP 0668598 B1 19970402; AT E151195 T1 19970415; DE 59402299 D1 19970507
DOCDB simple family (application)
EP 94102403 A 19940217; AT 94102403 T 19940217; DE 59402299 T 19940217