Search International and National Patent Collections

1. (WO2017031602) PREFABRICATED SLEEVE BODY FOR CONNECTING TWO HIGH-VOLTAGE POLYMER CABLES FOR DIRECT CURRENT

Pub. No.:    WO/2017/031602    International Application No.:    PCT/CH2016/000015
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Jan 27 00:59:59 CET 2016
IPC: H02G 15/103
Applicants: GRAMESPACHER, Hansjörg
Inventors: GRAMESPACHER, Hansjörg
Title: PREFABRICATED SLEEVE BODY FOR CONNECTING TWO HIGH-VOLTAGE POLYMER CABLES FOR DIRECT CURRENT
Abstract:
The invention relates to a sleeve body, made from elastomers for connecting high-voltage polymer cables for direct current. The insulation of the sleeve body comprises two insulation materials which have different electrical properties. By using two insulation materials with different specific electrical resistances, a more uniform distribution of the electrical field can be achieved in the sleeve body across a large temperature range. It is therefore important that the insulation material with the lower specific electrical resistance (5) forms a continuous connection between the deflector (4) and the center electrode (7) in the sleeve body. In order to guarantee a high electrical dielectric strength under surge voltage, it is likewise important that no boundary surface is located between the insulating materials within the sleeve body in the electrically critical area between the deflector (4) and the cable insulation (1).