This book provides a comprehensive review of the IEC 61850 standard and outlines the modelling and implementation of the standard using object oriented approaches. In addition to covering general information about the IEC 61850 communication standard, the book also describes a research project that was carried out for the implementation of the IEC 61850 standard as a concrete application layer protocol above a middleware layer specifically designed and implemented in a real-time communication processor environment to support all the communication needs required by the standard.