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首页> 外文期刊>IEEE Transactions on Power Delivery >An assessment of conductor temperature rises of cables, caused by a sudden application of short pulse in a daily cyclic load
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An assessment of conductor temperature rises of cables, caused by a sudden application of short pulse in a daily cyclic load

机译:评估在日常循环负载中突然施加短脉冲导致的电缆导体温升

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摘要

The method for calculating cyclic and emergency current power cable ratings has been elaborated for many years and has been standardized in form of IEC standards based on the application of a step function. To achieve a better accuracy, a computer method has been developed, based on finite difference approaches. With the propose procedures, this paper provides a sound basis for the accurate evaluation of temperature rises of conductor in cyclic load calculations. In addition, it proposes a compression-decompression approach for evaluating the temperature rise of the conductor, caused by the application of rectangular current pulses in daily cyclic load.
机译:计算循环和紧急电流电缆额定值的方法已经详细阐述了很多年,并且已基于阶跃函数的应用以IEC标准的形式进行了标准化。为了获得更好的精度,已经基于有限差分方法开发了一种计算机方法。通过提出的程序,本文为在循环载荷计算中准确评估导体温升提供了良好的基础。此外,它提出了一种压缩-减压方法来评估导体的温升,该温升是由于在日常循环负载中施加矩形电流脉冲而引起的。

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