Structure of electric power system Power system It

Structure of electric power system:

Power system It is define as An electric power system is a network of electrical components used to supply, transmit and use electric power. Three main components of power system Power station (Generating station) Transmission Distribution Power station (Generating station) Power stations generally houses two or more 3 phase alternators operated in parallel Generating voltage is not very high it is usually 11 kv to 25 kv Power stations are located far away from the consumer Ex; Steam power plant, nuclear power plant etc Transmission Because of economical reasons electric power has to be transmitted at a high voltage Voltage range 220 kv The voltage is step up by step-up transformer Distribution The high voltage is step down in to 11 kv at sub- station