毕业设计---110-35-10KV变电站一次设计

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1、 摘 要 随着工业时代的不断发展，人们对电力供应的要求越来越高，特别是供 电的稳固性、可靠性和持续性。然而电网的稳固性、可靠性和持续性往往取决于 变电站的合理设计和配置。 一个典型的变电站要求变电设备运行可靠、 操作灵活、 经济合理、 扩建方便。 出于这几方面的考虑， 本论文设计了一个降压变电站线路； 出低压侧电压为 10kv,有八回出线,其中有六回是双回路供电。同时对于变电站 内的主设备进行合理的选型。本设计选择选择两台 SFSZL-31500/110 主变压器， 其他设备如站用变，断路器，隔离开关，电流互感器，高压熔断器，电压互感器， 无功补偿装置和继电保护装置等等也按照具体要求进行选型、

2、设计和配置，力求 做到运行可靠，操作简单、方便，经济合理，具有扩建的可能性和改变运行方式 时的灵活性。使其更加贴合实际，更具现实意义。 关键字： 变电站 设计 Abstract With the continuous development of the industrial era, people on the power supply of demand is higher and higher, especially electricity firm sex, reliability and sustainability. However, the firm sex of grid re

3、liability and persistent often depends on the reasonable design and configuration substation. A typical substations requirements substation equipment reliable operation, flexible operation, reasonable economy, expansion is convenient. Out of these a few respects consideration, this paper designed a

4、step-down transformer substations lines; A low voltage side. There are eight consumers 10kv voltage to qualify, including six back is dual-circuits power supply. As for the main equipment in transformer substation reasonable selection. This design select the option two SFSZL - 31,500/110 the main transformer, other equipment such as standing by variable, circuit breakers, isolating switch, current transformer, high-voltage fuse, voltage transformer, reactive compensation de