EP 1103988 A2 20010530 - SEmi-capacitance graded bushing insulator of the type with insulating gas filling, such as SF6
Title (en)
SEmi-capacitance graded bushing insulator of the type with insulating gas filling, such as SF6
Title (de)
Durchführungsisolator mit Halbkapazitätsgradienten und mit Isoliergasfüllung, wie SF6
Title (fr)
Traversée - isolateur, calibrée à semi-capacité, remplie de gaz isolant, comme le SF6
Publication
Application
Priority
IT MI992481 A 19991126
Abstract (en)
A semi-capacitance graded bushing comprises a conductor (1) fixed in the upper part to a plate (2) of the head (3) and in the lower part by way of a movable contact (4) to the fixed electrode (5) of the gas-insulated bus-duct (6), an insulating capacitance body (7) formed by a winding of insulating material in which are inserted the conductive or semiconductive foils (8), and a tube (9) which is prolonged with respect to the insulating capacitance body (7) to function as an electrode which is duly screened with end rings (10), the insulating capacitance body (7) being supported by the flange (11) which is fixed with respect to the external porcelain (12) by way of a cemented collar (13). A glass fibre-reinforced resin tube (14) is disposed in the interior of the porcelain (12). The whole assembly is filled with insulating gas under pressure, generally SF6. The capacitance, having as armatures the conductor (1) and the electrode (9) and as dielectric the gas, is in cascade relationship with the capacitance of the insulating capacitance body (7). <IMAGE>
IPC 1-7
IPC 8 full level
H01B 17/28 (2006.01)
CPC (source: EP)
H01B 17/28 (2013.01)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 1103988 A2 20010530; EP 1103988 A3 20020102; EP 1103988 B1 20051130; DE 60024399 D1 20060105; DE 60024399 T2 20060817; IT 1313854 B1 20020924; IT MI992481 A0 19991126; IT MI992481 A1 20010526
DOCDB simple family (application)
EP 00107732 A 20000411; DE 60024399 T 20000411; IT MI992481 A 19991126