文档介绍：摘 要
本设计的主要内容包括：10/；变电所电气主接线设计；短路电流计算；负荷计算；无功功率补偿；电气设备选择（母线、高压断路器、隔离开关、电流互感器、电压互感器、避雷器和补偿电容器）；配电装置设计；继电保护规划设计；防雷保护设计等。
本设计十分注重运用我国电气设计的新技术和新的设备，实用性及强，考虑到是实际工程的应用，便以通俗易懂的语言进行阐述。
关键词：变电所设计；电气主接线；继电保护
Abstract
The design on the topic of "Liaoning Institute of Technology Teaching Building substation expansion preliminary design." The main design elements include : 10/ main transformer substation choice; Electrical Substation main wiring design; Short-circuit current calculation; Load Calculation; Reactive power compensation; Electrical Equipment (bus, HV circuit breakers, isolation switches, current transformer and voltage transformer, and compensation capacitor MOA); Distribution Equipment design; relay Planning and Design; Lightning protection design.
According to the main line of electrical design should meet the reliability, flexibility, economy requirements, The substation main electrical wiring High Side single-bus wiring, low voltage side of the single-bus above the main electrical wiring form; the low-pressure side load calculated using the statistical needs coefficient; To reduce the reactive power loss, increased energy utilization, The design of reactive power compensation design, power factor from to ; short-circuit current calculations include short-circuit point for the selection and specific numerical calculation; and electrical equipment chosen by the choice of rated current, short-circuit current calculation by the results of the calibration methods; relay design of the main transformer Current Protection and over-current protection design; distribution installations complete set of power distribution equipment; The substation using direct lightning stroke prevention lightning protection.
The design is very close attention to the use of our electrical design of the new technology and new equipment, practical and strong, Taking into account the actual application, in a user-fr