Expanded DC Arc Flash Model for 125V Substation Battery Backup Systems

2020 IEEE/IAS 56th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2020-06-01 DOI:10.1109/ICPS48389.2020.9176806

Austin C. Gaunce, Xuan Wu, J. D. Mandeville, D. J. Hoffman, A. Khalsa, J. Sottile, R. J. Wellman

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引用次数: 3

Abstract

Arc flash is one of two hazards primarily associated with electrical systems. Due to its prevalence, the majority of arc flash research has been dedicated to alternating current (AC) electrical systems. However, direct current (DC) electrical systems are becoming increasingly common, such as electrical storage systems (ESSs), solar photovoltaic (PV) panels, and high-voltage (HV) DC transmission lines. Thus, more research is needed to address the arc flash hazards posed by DC electrical systems. Current DC arc flash models are theoretical and lack empirical data compared with AC arc flash models. This paper presents models developed through empirical testing utilizing low-voltage (LV) station batteries. Furthermore, this paper investigates possible interactions between DC arc flash within LV battery systems and atmospheric conditions, such as temperature and relative humidity. Lastly, the paper provides information regarding the implementation of these models within American Electric Power’s (AEP’s) safety practices regarding batteries and DC panelboards.

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125V变电站蓄电池后备系统的扩展直流电弧闪络模型

电弧闪光是主要与电气系统有关的两种危害之一。由于电弧闪络的普遍存在，大多数电弧闪络的研究一直致力于交流(AC)电气系统。然而，直流(DC)电气系统正变得越来越普遍，例如电力存储系统(ess)、太阳能光伏(PV)板和高压(HV)直流输电线路。因此，需要更多的研究来解决直流电气系统所造成的电弧闪光危害。与交流电弧闪络模型相比，目前的直流电弧闪络模型都是理论性的，缺乏经验数据。本文介绍了利用低压(LV)站用电池通过实证测试建立的模型。此外，本文还研究了低压电池系统中直流电弧闪光与大气条件(如温度和相对湿度)之间可能的相互作用。最后，本文提供了在美国电力公司(AEP)关于电池和直流面板的安全实践中实施这些模型的信息。

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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2020 IEEE/IAS 56th Industrial and Commercial Power Systems Technical Conference (I&CPS)

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