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    • 75. 发明公开
    • VERFAHREN UND VORRICHTUNG ZUM AUSBILDEN EINES GLIMMSCHUTZES
    • 方法和设备形成电晕防护
    • EP2907225A2
    • 2015-08-19
    • EP13821835.9
    • 2013-12-30
    • Siemens Aktiengesellschaft
    • GRIEM, HaraldLANG, SteffenPOHLMANN, FriedhelmSTAUBACH, Christian
    • H02K3/40H02K15/12
    • H02K15/105B05D1/02H02K3/40H02K15/12
    • The invention relates to a method for forming corona shielding (7) on a winding bar (4) for high-voltage machines (1), having end corona shielding (8) in a first section (9) and outer corona shielding (10) in a second section (11) that adjoins the first section (9), said method comprising the following steps: provision (S1) of a first composition, which comprises a carrier material and a first filler contained therein and having a first electrical resistance; provision (S1) of a second composition, which comprises the same carrier material and a second filler contained therein and having a second electrical resistance, wherein the first and second fillers contain an identical dopable semiconductor material, the doping of which determines the electrical resistance of the first and second fillers, and wherein the second resistance differs from the first resistance; application (S2) of the first composition in the first section (9) to form the end corona shielding (8); and application (S2) of the second composition in the second section (11) to form the outer corona shielding (10). The same carrier material and fillers having the same properties are used for both compositions, and therefore the corona shielding with the end corona shielding and the outer corona shielding can be formed in one go (one single production step). The invention also relates to a device (19) for forming corona shielding (7) on a winding bar (4) for high-voltage machines (1).