CAJ | 학술논문

用于超导设备的薄膜型绝缘材料绕包于导体时往往承受一定的绕包张力，需要研究薄膜型绝缘材料在液氮环境中拉伸状态下的冲击绝缘强度。通过设计的波拉拉伸击穿测试系统，对聚酰亚胺、聚丙烯层压纸和聚四氟乙烯三种薄膜在液氮中拉伸状态下的冲击绝缘强度进行了测量，并通过Weibull概率分布的方法对测试结果进行了处理。结果发现随拉伸应力的增加，3种材料的冲击绝缘强度均在一定幅度内随之下降。所得结果可为超导电力装置的绝缘设计提供基础数据。
용우초도설비적박막형절연재료요포우도체시왕왕승수일정적요포장력，수요연구박막형절연재료재액담배경중랍신상태하적충격절연강도。통과설계적파랍랍신격천측시계통，대취선아알、취병희층압지화취사불을희삼충박막재액담중랍신상태하적충격절연강도진행료측량，병통과Weibull개솔분포적방법대측시결과진행료처리。결과발현수랍신응력적증가，3충재료적충격절연강도균재일정폭도내수지하강。소득결과가위초도전력장치적절연설계제공기출수거。
The dielectric sheets used for superconducting devices usually endure several lapping tension when lapped on the conductor .So the impulse dielectric strengths of dielectric sheets under tension status in liquid nitrogen was be studied .A special electrode system was designed , the impulse dielectric strengths of polyimide, polypropylene laminated paper (PPLP) and polytetrafluoroethylene (PTFE) films under tension status in liquid nitrogen are tested , then the tested data are processed by the method of Weibull probability plot.As a result, the impulse dielectric strengths of three materials all decreased in a small range as the tensile stresses increased .The results could provide data base for the insulation design of superconducting devices .