[工程科技]110KV变电站设计论文.doc

摘要 本设计是针对“咸洋市110KV变电站一次设计”的要求，对电力系统及变电所的具体情况进行了分析与说明，对主变压器和主接线进行了设计与选择，并进行了短路电流的计算，根据所求的结果和已知的数据确定了母线、母线引下线、断路器、隔离开关、互感器、避雷器等必需的电气设备，且对变电所进行了防雷设计。 根据变电所任务书给定的负荷，我们不难对主变的进行选择，并用一级和二级负荷对其容量的选择进行校验，根据远景与近景负荷的比较确定一期工程主变的台数。电气主接线的设计是变电站电气设计的主体，在设计中应以任务书为依据，以国家经济建设的方针、政策、技术规定、标准为准绳，结合工程实际情况在保证供电可靠、调度灵活、满足各项技术要求的前提下兼顾运行、维护方便，尽可能的节省投资。导体和电气设备的选择是电气设计的主要内容之一，电力系统中各种电气设备的作用和工作条件不一样，具体选择的方法也不完全相同，但对它们都有一致的要求，电气设备要能可靠的工作，必须按正常工作条件进行选择，并按短路状态来校验热稳定和动稳定。配电装置是根据电气主接线的连接方式，由开关电器、保护和测量电器，母线和必要的辅助设备组建而成的总体装置。以本设计来看110KV宜采用室外形式，35KV和10KV宜采用室内形式。为了预防和限制雷电的危害性，变电站中还应采用防雷措施和防雷保护装置。 变电站电气主接线短路电流电气设备雷电 ABSTRACT This design aims at the request which Xianyang newly built 110KV transformer substation time designs ， has carried on the analysis and the explanation to the electrical power system and the transformer substation special details, has carried on the design and the choice to the main transformer and the host wiring, and has carried on the short-circuit current computation, according to result and known data determination generatrix, generatrix download, circuit breaker, isolator, voltage and current transformer, lightning arrester, and so on which asks essential electrical equipment, also has carried on the anti-radar design to the transformer substation. Load assigns which according to the transformer substation project description, we not difficultly change to the host carry on the choice, and carries on the verification with level of and two levels of loads to its capacity choice, changes the Taiwan number according to the prospect and the close view load quite definite issue of project host. The electrical host wiring design is the transformer substation electricity design main body, in the design should take the project description as the basis, take the national economic construction policy, the policy, the technical stipulation, the standard as the criterion, the union project actual situation in the guarantee power supply reliable, the dispatcher nimble, satisfies each spec