Abstract
A reliable and efficient transmission system benefits not only the power utility companies, but the consumer as well. This report provides clarification to concepts and calculations in the analysis of an electrical transmission system involving a 345KV with 170 miles of distance. The project will analyze the efficiency, voltage regulation, power quality, power losses by comparing different sizes of cables. A fundamental part of achieving a reliable transmission system is by considering all necessary factors such as; careful design and complicated calculations “with help of MATLAB”. Different compensator devices will be discussed and used in no load and full load situations in this report in order to design an efficient transmission circuit.