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首页> 外文期刊>IEEE Transactions on Power Delivery >Dielectric breakdown strength correlation with time-to-failure during wet aging of XLPE-insulated cables
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Dielectric breakdown strength correlation with time-to-failure during wet aging of XLPE-insulated cables

机译：XLPE绝缘电缆湿老化期间的介电击穿强度与失效时间的关系

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摘要

This paper reviews two sets of failure information, the GMTF (a parameter obtained from time-to-failure results) and GMBD stress (a parameter that is calculated from AC breakdown test results), and suggests a correlation. The test results were obtained from accelerated aging experiments on full-sized medium voltage cables in carefully controlled and monitored water-filled tanks. Results show that the ambient temperature AC breakdown strength for equivalently aged cables is influenced primarily by voltage stress during aging-not by the aging temperature. The AC breakdown strength on equivalently aged cables was also shown to decrease with reductions in the aging voltage at all aging temperatures.
机译：本文回顾了两组故障信息，即GMTF（从失效时间结果获得的参数）和GMBD应力（根据AC故障测试结果计算出的参数），并提出了相关性。测试结果是通过在经过仔细控制和监视的充满水的储罐中对全尺寸中压电缆进行加速老化实验而获得的。结果表明，等效老化电缆的环境温度交流击穿强度主要受老化过程中的电压应力影响，而不受老化温度影响。在所有老化温度下，等效老化电缆的交流击穿强度也随着老化电压的降低而降低。

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