Abstract
AbstractThis paper introduces a theoretical study of the significant factors that affecting the dynamics of wire particles in a horizontal coaxial gas‐insulated transmission line (GITL) and/or gas‐insulated switchgear (GIS) systems. The dynamics of the particle is investigated using a computational algorithm and under different voltage waveforms, gas pressures and coating thicknesses. The simulated voltage waveforms are the 60 Hz AC, single and successive switching impulses (SI), and bipolar‐oscillatory and damped impulses. All the applied voltage waveforms are simulated with and without the DC prestress, except for the AC case. These voltages represent the actual waveforms that occur in practice. The present work highlights the dangerous situations of the particle dynamics and their methods of mitigation. Moreover, the investigated dynamic behaviours of such defect under AC energization give excellent signs for the recognition by the acoustic detection technique.
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