EP 0746002 B1 20000614 - A transformer for the measurement of current in high-voltage supply networks
Title (en)
A transformer for the measurement of current in high-voltage supply networks
Title (de)
Stromwandler für ein Hochspannungsenergieversorgungsnetz
Title (fr)
Transformateur de courant pour un réseau d'alimentation électrique à haute tension
Publication
Application
Priority
IT MI951143 A 19950601
Abstract (en)
[origin: EP0746002A2] The invention concerns a transformer for the measurement of current in high-voltage networks wherein the shell (7), which compacts in the form of a ring the magnetic cores (6) of the secondary winding, is fixed in its lower part to a central metal tube (20) at the base of the transformer and in its upper part to an insulating tube (22) which centers and keeps taut said elements (22, 7, 20) resulting in advantages both with respect to the construction and for transporation. There are also provided electrodes (28,29) facing one another in order to form a preferential discharge zone in the vicinity of the safety membrane (14) as well as an intermediate shield (36) surrounding the central tube (20) and possibly, in the case of high voltages, a capacitance grading bushing (45) wound around the intermediate shield (36) for a better distribution of the electrical field. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 38/30 (2006.01)
CPC (source: EP)
H01F 38/30 (2013.01)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0746002 A2 19961204; EP 0746002 A3 19970312; EP 0746002 B1 20000614; DE 69608853 D1 20000720; DE 69608853 T2 20001130; IT 1275290 B 19970805; IT MI951143 A0 19950601; IT MI951143 A1 19961201
DOCDB simple family (application)
EP 96108463 A 19960528; DE 69608853 T 19960528; IT MI951143 A 19950601