泉州市kV变电站(电气部分)研发设计.docVIP

摘 要 变电站是电力系统的一个重要组成部分，由设备及电网络按一定的方式所，他从电力系统取得电能，通过其变换、分配、输送与保护等功能，然后将电能安全、可靠、经济的输送到每一个用电设备的转设场所。 本次设计任务旨在体现对本专业各科知识的掌握程度。首先根据任务书上所给系统与线路及所有负荷的参数，分析负荷发展趋势。从负荷增长方面阐明了建站的必要性，然后通过对拟建变电站的概括以及出线方向来考虑，并通过对负荷资料的分析，经济及可靠性方面考虑，确定了110kV，35kV，10kV以及站用电的主接线，然后又通过负荷计算及供电范围确定了主变压器台数，容量及型号，同时也确定了站用变压器的容量及型号，最后，根据最大持续工作电流及短路计算的计算结果，做出线路保护，变压器保护，母线保护，防雷保护。关键词变电站输电系统ABSTRACT The substation is an importance part of the electric power system, it is consisted of the electric appliances equipments ，Transmission ，protection and the Distribution. It obtains the electric power from the electric power system, through its function of transformation and assign, transport and safety. Then transport the power to every place with safe, dependable, and economical. Design of this time is aim at intensity of mastering of every subject knowledge of this speciality reflecting. first, analyze the trend of load department according to all parameter of load about system and circuit on task book. It expounds the necessity to this situation from the aspect of increasing load. Then through to the generalization of planning to build the transformer substation and the analysis of the load materials, economy and dependability are considered, has confirmed the mainly wiring form of 110kV, 35kV, 10kV. Calculated and supplied power in the range and confirmed substations number of the main voltage transformer through load finally, capacity and type, capacity and type of using the voltage transformer stand surely at the same time, finally, the result of calculation of calculating that and short out according to the electric current of largest lasting job, make the circuit protection, the voltage transformer protection, the bus bar protection and prevent the thunder from protecting. Key words：110KV substation；Transmission system；Short out in the electric current；Relay protection 目录 概 述 …………………………………………………………………………………1 第1章 电气主接线 …………………………………………………………………3 1.1 110kv电气主接线 ……………………………………………………………3 1.2 35kv电气主接线 ………