Long distance transmission of electric power is one of the major challenges of the electrical age the goals which engineers have been working towards have remained the same despite many other things changing over the years. 1- Efficiency – transport electric power over distance with minimal loses. 2- Safety – transport power through ubanand rural areas mini missing harm to people and animals. 3- Cost – use minimal raw materials and builoings operating costs people. 4- Roboustness – create a system which is not vulnerable to surges from lightining , solar flares , earth quakes , icestorms wind storms , and have the system able to heat it self when ovtages occur isolating problem areas. There are four ways to transport electrical power over long distance : High voltage alternating current High voltage Ac power : Alternating current proved to be the most effective for distance transmission because of several great properties. 1-Ac current can be easily converted fron low voltage to high voltage and back again . higher voltages are beast for pushing power through conductors , because higher voltages lose less energy along the trip than lower voltages. 2- ac power is good for power grids as it distribuits it self throughout a grid and can heat by routing power around an outage area. Ac power is the most common method of power transmission in the world , lines , are suspended high above the ground as they produce an electromagnetic field around the wire . the higher the voltage , the larger the electromagnetic filed generated around the wire. But the negative point of ac transmission by lines is it significant losses from induction. This system of transmission is constantly approued by engneers. The bargh ara company is specilised for transmitting the electricity power through the lines.