PLUG-IN INPUT AND HV INSTALLATION WITH PLUG-IN INPUT Russian patent published in 2013 - IPC H01B17/28 H01F27/04 H01R13/53 

FIELD: electrical engineering.

SUBSTANCE: plug-in HV input (D) serves for connection of a current lead to the HV installation component (T) filled with an insulating medium and encapsulated inside a metal housing. The input is designed to be rotationally symmetrical relative to axis (A) and contains a centrally position current lead (10), a field control device and (enveloping the current lead) an insulator (20) with a tapering section (21) that, after the input (D) insertion into the plug-in part (60) covering the component (T) in a manner impermeable for the insulating medium, dielectrically strengthens the gap (F) positioned between the plug-in part (60) insulating bushing (64) and the insulator (21) tapering section. The field control device is designed as a capacitor roll (40), the capacitor roll (40) containing capacitor armatures (41) electrically insulated from each other, retained (in the radial direction) by an insulating film (42) with a gap relative to each other and embedded into the insulator (20) by way of the capacitor roll (40) sealing in consolidated polymer mass; the capacitor armatures (41) pass through the installation flange (30) towards the insulator (20) tapering section (21).

EFFECT: creation of an input of comparatively simple and robust design, applicable for efficient control of active electric field in case of the input operating at very high operational voltages.

13 cl, 3 dwg