To explain the phenomena of partial discharges (PD) in gaseous cavities embedded in the bulk dielectric of HV equipment and their components as well as to analyze the associated PD transients, two fundamental approaches have been proposed in the past, which are commonly referred to as network-based PD model and dipole-based PD model. This paper is addressed to the first approach, while the second one will be reviewed in the Part II of this publication. Verifying the feasibility of the network-based PD model leads to results, which contradict the expectations from a physical point of view. The reason for that are simplified assumptions, which are inconsistent with the fundamentals of the gas discharge physics. Another shortcoming is the use of the classical network theory, although the field theory must be adopted to treat the PD transients. This leads to the conclusion that the traditional abc-model is only applicable to describe and explain he phenomena of cavity discharges qualitatively, but not to treat the PD transients quantitatively, as will be highlighted in more detail in this paper.

中文翻译：

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交流和直流电压下的空腔放电建模 - 第一部分：基于网络的局部放电模型的局限性

为了解释嵌入在 HV 设备及其组件的体电介质中的气腔中的局部放电 (PD) 现象以及分析相关的 PD 瞬变，过去提出了两种基本方法，它们通常被称为基于网络的局放模型和基于偶极子的局放模型。本文针对第一种方法，而第二种方法将在本出版物的第二部分进行审查。验证基于网络的 PD 模型的可行性导致结果与物理角度的预期相矛盾。其原因是简化的假设，这与气体放电物理的基本原理不一致。另一个缺点是使用经典网络理论，尽管必须采用场理论来处理局部放电瞬态。