基于GaInSn液态金属自收缩效应的故障电流限制器研究现状与发展

The State of Art and Development Trend of GaInSn Liquid Metal Fault Current Limiter Based on Self-Pinch Effect

介绍了近40年国内外关于液态金属限流原理及装置的研究现状。同时从试验研究和数值计算的角度介绍了自收缩型液态金属限流器的弧前收缩机理、燃弧特性、电弧对材料的烧蚀机理,以及不同参数对其限流特性的影响规律。最后提出了一种带U型抽板的改进型液态金属限流原理及装置。通过试验验证了新方案能有效地提高电弧电压,改善限流特性。

The state of art and development of the liquid metal fault current limiters（ LMFCL） in recent 40 years at home and abroad were introduced. The LMFCL based on self-pinch effect has drawn much attention for its particular properties. The pinch process,arcing process,arc burning and the current limiting regulation with different parameters were introduced by means of experiments and simulation. Finally,a revised LMFCL with a U-shape sliding part was proposed,which proves that the new method can improve the current limiting property to some extent.