Defect recognition of oil‐pressboard insulation based on frequent arc reignition phenomenon under switching impulse voltage
Simeng Li,
Yukun Zhang,
Yunfei Jia
et al.
Abstract:In the past three years, a number of oil‐immersed ultra‐high‐voltage shunt reactors have experienced discharge defects when being put into operation, resulting in an overload of acetylene. However, detecting and identifying these discharge defects caused by switching impulse voltage is challenging under steady‐state conditions. This poses unpredictable and difficult‐to‐assess safety risks for the longterm operation of the equipment and subsequent transient processes. Hence, comprehending the discharge behavior… Show more
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