Abstract: This paper discuss design and implementation wireless sensor network system is used for tow purposes , power management system and protection system. The power management system (PMS) is very important factor to manage and control the electrical power, This system consider important tools to safe the power consumption then due to this system can reduce the power consumption to minimum point, and also its charge of coordinate between power consumption capacity and power production capacity to avoid switch off the street lighting and emergency places such as hospitals. And automatic switch on and switch off the consumers diesel generators, by using successful management power can get to stable and efficient distribution power system. And in this paper discuss how can provide protection to remote terminal units (pole power transformers) and safe the money. The powerful devices that use in this system is ZigBee and microcontroller.

Keywords: WSN , Zigbee , Microcontroller , CT , VT , PMS.