Innovative Strategies for Internal ARC-Flash Risk Mitigation in LV Switchgears

R. Faranda, K. Fumagalli, L. Franzosi, Luigi Bellofatto
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Abstract

Internal Arc Classification (IAC) of Low Voltage switchgear according to IEC and IEEE standards is one of the most important requirements to guarantee personal safety in case of internal arc faults. One of the challenges is to find innovative strategies to reduce damages of arc triggering utilizing more specific solutions inside the switchgear. As known, there are three mains philosophies of Arc Fault Management: Active protection, based on monitoring of electrical devices; Passive protection, obtained using structural reinforcements and insulations, Avoidance philosophy, where the assembly guarantees a reduced risk of arc fault (e.g. the arc ignition protected zone).What this research is going to explore is the Passive protection and the Avoidance philosophy with the introduction of new approach for internal arc-flash risk mitigation. The paper presents an innovative validation procedure in order to improve the IAC.
低压开关设备内部电弧闪光风险降低的创新策略
根据IEC和IEEE标准对低压开关柜进行内弧分类(IAC)是在发生内弧故障时保证人身安全的重要要求之一。其中一个挑战是找到创新的策略,利用开关设备内部更具体的解决方案来减少电弧触发的损害。众所周知,电弧故障管理有三种主要理念:主动保护,基于电气设备的监测;被动保护,通过结构加固和绝缘获得,避免理念,其中组件保证降低电弧故障的风险(例如,电弧点火保护区)。本研究将探讨的是被动保护和避免的理念,并引入新的方法来降低内部电弧闪光的风险。本文提出了一种创新的验证程序,以改进IAC。
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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