Any power system, however complex, may be modeled by means of analogue theory as an interconnected network of active and passive nodes with communication links in a manner to engender desired performance objectives. A Network Management System could be envisaged for monitoring and control of such a power system network. To predict the performance, quality and reliability for such an interconnected power engineering system, it is possible to generate a simulation model and have a detailed study of the outcome. The present paper indicates the steps required to carry out the above process for ascertaining the quality and performance of the system.