order to satisfy the on- site consumer in expansion of power demand. Microgrid is one of the key points for research in the field of distributed renewable energy source system. Microgrid that integrates with renewable energy sources is the answer for the crisis in increasing demand of power, T&D expansion which is vulnerable to natural or man- made interruption. In this paper, the transient operation of hypothetical example of microgrid is studied. Thus, the model with generation units (wind turbine)
development of the microgrid. Microgrid has two modes of operation: a) grid-connected mode, b) islanded mode. In grid connected mode, the connection is established between main grid and micro grid where as no such connection exists in islanded mode and thus it operates autonomously. Microgrid may operate in islanded mode intentionally or unintentionally. Voltage and frequency in the grid are not constant due to the variable loads connected to the grid. In three phase microgrid, fault in one phase