Electricity is generated at different power stations then it is transmitted through various channels like power transformers transmission lines and transmission substations to the distribution substations finally distribution substations distribute the electrical energy to residential and commercial consumers the basic components of an electric power system are power generation plantstep . There is no difference between a transmission line and a distribution line except for the voltage level and power handling capability transmission lines are usually capable of transmitting large quantities of electric energy over great distances they operate at high voltages distribution lines carry limited quantities of power over shorter distances voltage drops in line are in relation to the resistance and reactance of line length and the current drawn for the same quantity of power . Part of the second edition of the electric power engineering handbook electric power generation transmission and distribution offers focused and detailed coverage of all aspects concerning the conventional and nonconventional methods of power generation transmission and distribution systems electric power utilization and power quality. Naics 221100 electric power generation transmission and distribution these national industry specific occupational employment and wage estimates are calculated with data collected from employers of all sizes in metropolitan and nonmetropolitan areas in every state and the district of columbia in naics 221100 electric power generation transmission and distribution
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