The conventional electrical system, production of power is happened in several places also power transmitted into the grid and finally distribution takes place to the individual customers. In conventional powergrid suffers high capital cost, finite reliability, rising greenhouse gases emissions and growing power losses in the transmission line. The power company is choose an interconnecting diverse nonconventional form small generations close to user places, based on their demand also giving smart lever to the power grid. An extensive result, power generation from microgrid is recommended per scientists it could supplies secure, standard and effective supply of source to individuals. Microgrid integration is already available power delivery network forms more intricate to the radial power distribution network. It further lead to magnitude of fault current is vary aggressively based on operation methods (isolated or grid integrated), source, status, also total distributed production of power. In existing protecting control strategies are modelled in radial energy circulation and centralized production of power, it creates available protecting approach is fall in the microgrid. So, effort is carried out to re-examine the fundamental conceptions also importance, problems experienced by microgrid as theme of diverse protection approaches.

传统的电力系统，电力生产发生在几个地方，电力传输到电网，最后分配给个人客户。在传统电网中，资本成本高、可靠性有限、温室气体排放量增加以及输电线路的功率损耗增加。电力公司根据用户需求，在用户所在地附近选择互联多样的非常规形式的小代，同时为电网提供智能杠杆。一个广泛的结果是，每个科学家都建议使用微电网发电，它可以为个人提供安全、标准和有效的能源供应。微电网集成已经是可用的电力输送网络形式更复杂的径向配电网络。它进一步导致故障电流的大小根据操作方法（隔离或并网）、电源、状态以及电力的总分布式生产而剧烈变化。在现有的保护控制策略中以径向能量循环和集中发电为模型，它创建了可用的保护方法是落在微电网中。因此，努力重新审视基本概念也很重要，微电网遇到的问题作为多种保护方法的主题。它创造了可用的保护方法是落在微电网中。因此，努力重新审视基本概念也很重要，微电网遇到的问题作为多种保护方法的主题。它创造了可用的保护方法是落在微电网中。因此，努力重新审视基本概念也很重要，微电网遇到的问题作为多种保护方法的主题。