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首页> 外文会议>2018 Progress in Applied Electrical Engineering >Investigation of the Breakdown Behavior of Silicone Gel Insulation in MV Application
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Investigation of the Breakdown Behavior of Silicone Gel Insulation in MV Application

机译：MV应用中硅胶绝缘的击穿行为研究

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摘要

Silicone gels are elastic materials characterized by easy processing and high dielectric strength. Because of their good aging characteristics and thermal stability they can be used in both MV and HV applications. In this paper the results of silicone gel investigation performed with an experimental test setup consisting of an epoxy cast MV coil fixed on an iron core, embedded in silicone gel are discussed. The electric field distribution between the cast coil and the core is simulated numerically. The setup is subjected to thermal cycling, after which the breakdown field of the setup is measured. The result obtained with the experimental test setup is compared with the dielectric strength of the silicone gel measured with an IEC-60243 compliant parallel plate setup. The effect of gas bubble formation after electrical discharge in the silicone gel is briefly discussed.
机译：硅凝胶是弹性材料，具有易于加工和高介电强度的特点。由于其良好的老化特性和热稳定性，它们可用于中压和高压应用。在本文中，讨论了通过实验测试装置进行的硅胶研究结果，该实验测试装置包括固定在铁芯上的环氧浇铸MV线圈，并嵌入硅胶中。数值模拟了铸造线圈和铁心之间的电场分布。对装配进行热循环，然后测量装配的击穿场。将通过实验测试设置获得的结果与通过符合IEC-60243的平行板设置测得的硅胶的介电强度进行比较。简要讨论了在硅胶中放电后气泡形成的影响。

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