CAJ | 학술논문

管母以占地面积小，布置清晰美观，导体表面临界电晕电压高的优点在直流输电换流站中得到了广泛的应用，通过分析影响支撑式管母线长度伸缩和挠度变化的因素，总结出当采用支撑式管母线时不仅需要对管母线沿长度方向的滑动偏移量(长度伸缩量)进行考虑，还要对管母支撑点处管母的转角进行考虑，以利于管母线长度伸缩和挠度变化时应力的释放，避免支撑绝缘子的损坏，同时对几种常用的管母支撑金具的优缺点进行了分析并提出了设计过程中需要注意的问题，期望能够对设计人员在进行电站管母的支撑设计和金具选型时提供一些参考和帮助。
관모이점지면적소，포치청석미관，도체표면림계전훈전압고적우점재직류수전환류참중득도료엄범적응용，통과분석영향지탱식관모선장도신축화뇨도변화적인소，총결출당채용지탱식관모선시불부수요대관모선연장도방향적활동편이량(장도신축량)진행고필，환요대관모지탱점처관모적전각진행고필，이리우관모선장도신축화뇨도변화시응력적석방，피면지탱절연자적손배，동시대궤충상용적관모지탱금구적우결점진행료분석병제출료설계과정중수요주의적문제，기망능구대설계인원재진행전참관모적지탱설계화금구선형시제공일사삼고화방조。
Tubular busbar is widely applied in direct current transmission conversion station because of its advantages such as small occupation area, clear and beautiful layout, the conductor surface’s highly critical corona voltage. In this paper, the factors which influence the support tubular busbar’s length extension and flexible deflection change were analyzed, and it is concluded that when the supported type tubular busbar is employed,not only the offset along the length direction (length extension amount) of the busbar but also the busbar angle at the support point should be considered to facilitate the stress relief during the tubular busbar ’s length extension and flexible deflection change and avoid the damage of supporting insulator. Meanwhile, the advantages and disadvantages of several often-used tubular busbars support fittings were discussed and the problems which have to be noticed during the design phase were also presented. The conclusions and discussions may be helpful for the support design and fittings selection of tubular busbar in power station and can be referenced by the designers.