高压真空灭弧器AMF电极直径模拟

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI:10.1109/DEIV.2016.7763940

Zheng Wang

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引用次数: 0

摘要

本文的目的是研究在高额定电压下，需要多大的电极才能达到31.5kA的短路分断能力。首先，制备了三种π - 65mm电极，并对其模型进行了建立。然后利用Maxwell 3D有限元软件模拟了kA峰值电流下各接触面和中间平面上的AMF密度和分布;在临界AMF密度为4mT/kA时，计算其有效面积A和利用率U。最后，根据在12kV下获得的31.5kA有效面积A0，得到了在高额定电压下所需的电极直径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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AMF electrode diameter simulation for HV vacuum interrupter

The objective of this paper is to study how big an electrode is needed for 31.5kA short-circuit breaking capacity at high voltage ratings. First, three types of π65mm electrodes are created with AMF density and contact gap enhanced step by step, and their models are established. Then the AMF density and distribution on each contact surface and intermediate plane at kA peak current are simulated by using finite element software Maxwell 3D; their effective area A and utilization U are calculated with critical AMF density of 4mT/kA. Finally, based on the achieved 31.5kA effective area A0 at 12kV, the needed electrode diameter at high voltage ratings is obtained.

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2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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