AN ELECTRIC DC-CABLE WITH AN INSULATION SYSTEM
    3.
    发明公开
    AN ELECTRIC DC-CABLE WITH AN INSULATION SYSTEM 有权
    与隔离布置电气直流电源线

    公开(公告)号:EP1046177A1

    公开(公告)日:2000-10-25

    申请号:EP98964663.3

    申请日:1998-12-22

    IPC分类号: H01B3/44

    摘要: An insulated DC-cable and method for production of an insulated DC-cable with an insulating system comprising an extruded cross-linked polyethylene based insulation disposed around the conductor. The extruded polyethylene based compound comprises additives such as cross-linking agent, scorch retarding agent and antioxidant. The scorch retarding agent comprises a compound (D), 2,4-diphenyl-4-methyl-pentene-1 and the antioxidant comprises a compound (C), a diester of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionicacid and thiodiglycol. The compounded polyethylene based resin composition is extruded and cross-linked at a temperature and for a period of time sufficient enough to cross link the insulation. The temperature and the period of time upon extrusion and cross-linking are limited so as to substantially suppresss or essentially avoid undesired polar by-products being formed in the cross-linked composition.

    DEVICE AT THE END WINDING REGION IN A ROTATING ELECTRIC MACHINE
    5.
    发明公开
    DEVICE AT THE END WINDING REGION IN A ROTATING ELECTRIC MACHINE 失效
    DEVICE FOR绕组端部区域的旋转电机

    公开(公告)号:EP0935838A1

    公开(公告)日:1999-08-18

    申请号:EP97912610.0

    申请日:1997-11-04

    IPC分类号: H02K3

    CPC分类号: H02K3/40 H02K3/50 H02K2203/15

    摘要: A device for mechanically securing and controlling the potential of winding cables (10) outer semiconducting layers (14) in the end windings region of the stator (2) of a rotating high-voltage electric machine comprises spacers (12) of resilient, electrically conducting material arranged between the semi-conducting outer layers (14) of adjacent winding cables (10, 10', 10''). Positioning devices (16, 18) are arranged to secure the cables in relation to each other with the outer layers in contact with the spacers. Means are also provided to connect the cables outer semiconducting layers and spacers with a reference potential (28).