Contents 1. Introduction
This is the first of several articles on various aspects of high frequency (HF) loss in shielded power cables. This subject has been under active investigation since at least 1982, when the paper on partial discharge (PD) pulse propagation was published by Stone and Boggs [1]. The subject is technically relevant in a range of contexts including PD pulse propagation; protection of inductive devices from the detrimental effects of very large dV/ dt, which can cause a large fraction of the potential to drop across the top of the winding, resulting in turn-to-turn failures [2]; the protection of variable-speed drive motors from the effects of the large number of fast-switching transients caused by IGBT in variable-speed drives; and damping of the interaction between cables and transformers, which can cause prestrikes and restrikes during switching of vacuum circuit breakers, etc. However, the purpose of this series of articles is to explore the mechanisms of HF loss in shielded power cable, design variables related to such loss, and the prediction and measurement of HF loss in shielded power cables.
