Cables with cross-bonded cable sheaths are predominantly used in high-voltage ac systems. Existing frequency-domain models of such cables use ABCD-parameters, which may cause numerical problems in the high-frequency region, or Y-parameters. The existing Y-parameters model excludes bonding wire impedances which may result in inaccurate estimates of the magnitude or frequency of the cable input impedance at resonant frequencies. This letter extends the formulation of an existing Y-parameters model to include bonding wire impedances. The proposed extended formulation is validated against a cable model in commercially available EMT-type software, in frequency- and time domain. For a certain bonding wire impedance model, the proposed Y-parameters model is shown to have a lower magnitude of the cable input impedance at resonant frequencies compared with a model excluding bonding wire and grounding impedances.

中文翻译：

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包含键合线阻抗的交叉连接电缆的Y参数模型

带有交叉粘结电缆护套的电缆主要用于高压交流系统。这种电缆的现有频域模型使用ABCD参数，这可能会在高频区域或Y参数中引起数值问题。现有的Y参数模型不包括键合线阻抗，这可能导致在谐振频率下电缆输入阻抗的大小或频率的估计不准确。这封信扩展了现有Y参数模型的公式，使其包括键合线阻抗。在频域和时域中，针对市售EMT型软件中的电缆模型对提出的扩展公式进行了验证。对于特定的键合线阻抗模型，