The National Electric Code, in Article 690.5, requires that any PV array installed on the roof of a dwelling must incorporate a ground-fault protection device to reduce fire hazards.
《美国国家电气法规》第690.5条规定，安装于住宅楼顶的任何光伏阵列都必须配备接地故障保护器件，以减少火灾隐患。
Based on the analysis of a typical stator ground fault and its recording data, the protection action is proved to be correct.
通过对一次典型的定子接地故障情况和保护录波数据分析，证明了保护动作行为的正确性。
Furthermore, based on Lab VIEW virtual instrument technology, the chaotic single-phase-to-ground fault protection is developed.
采用虚拟仪器技术，开发了基于混沌选线方法的小电流接地系统单相接地故障选线仪。
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