| 摘要 |
A stator conductor terminal assembly is located at the underside of the housing of a three-phase turbo-generator for leading out the phase windings from the stator coil head. The assembly includes three fully insulated liquid-cooled tubular lead-off conductors connected respectively to the phase windings and each such conductor includes a first section directed vertically downward, a second section directed horizontally for different distances and a third section also directed vertically downward and which is shielded in a metallic box-like enclosure. A current transformer surrounds the third section of the conductor within the box-like enclosure and the lower end of the third section which passes through the open bottom of the enclosure is connected to a terminal which latter is connected to an outgoing phase line. Metallic tubular shielding surrounds each phase line and this shielding is connected by way of electrically conductive bellows to the box-like enclosure. The three box-like enclosures are mounted side-by-side by means of bolted-together flanges and interfacing side walls of the enclosures are open to permit circulation of an air coolant therebetween and include arc barriers to prevent multi-phase short-circuits. |
