【论文】变电站电气部分设计.docVIP

摘要 随着经济的发展和现代工业建设的迅速崛起，供电系统的设计越来越全面、系统，工厂用电量迅速增长，对电能质量、技术经济状况、供电的可靠性指标也日益提高，因此对供电设计也有了更高、更完善的要求。 变电站对电力的生产和分配起到了举足轻重的作用，是电力系统中变换电压、接受和分配电能、控制电力的流向和调整电压的电力设施With the rapid economic development and the rise of modern industrial building, power supply system design more and more comprehensive, system, plant rapid consumption growth, increasing reliability indexes of power quality, technical and economic conditions, power supply, so the power supply design also have higher requirements, more perfect. The production and distribution of electric power substations play a decisive role, is to transform the power system voltage, accept and distribution of electricity, control the power flow and adjust the voltage of the power facilities, as the power transmission and control of the project, the design is reasonable, not only directly affect the consumption of capital investment, operation cost and color metal, will be reflected in the reliability and safety of electricity production, it and the economic efficiency of enterprises, closely related to personal safety equipment. This paper introduces the design of part of 220KV electrical substation design. First, analyze the original data, the design of main connection, select the number and capacity of the main transformer, characteristics, comparison of all kinds of connection modes. The advantages and disadvantages, according to the technical requirements of two kinds of main wiring plan than other schemes and reliable; and the two schemes are compared, economic comprehensive, determine the main wiring scheme of optimal the short-circuit current calculation; then, preparing for the design of the high voltage electrical equipment choice, setting, calibration and other aspects; selection and check and then the main electrical equipment, the power distribution equipment design, lightning protection design. Keywords: substation, transformer, short circuit calculation, selection of equipment, power distribution equipment.