110KV变电站二次系统设计

110KV 变电站二次系统设计110KV 变电站二次系统设计摘 要本设计进行的是珠海某地区 110KV 变电站电气部分设计，本设计主要以二次电气为主。通过 经济性以及可靠性，首先确定 110KV、35KV 和 10KV 侧的主接线形式。通过考虑对所建变电站及出线和分析对负荷资料，满足安全性、经济性及可靠性的要求确定110kV、35kV、10kV 侧主接线的形式，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，从而得出各元件的参数，进行等值网络化简，并对变电站进行了无功补偿。然后选择短路点进行短路计算，根据短路电流计算结果及最大持续工作电流，选择并校验电气设备，包括母线、导线、断路器、隔离开关、电压互感器、电流互感器等，并确定配电装置。本文简单的分析了防雷和接地装置，最后绘制了相关二十余张图纸的。关键词：变电站设计，二次部分,变压器，电气主接线，设备选择110kV Substation DesignAbstract This paper designed the 110kV substation of ZhuHai，Mainly about Primary electrical design. First, according to the mission statement of the various parameters, by considering the construction of substations and qualifying and load data analysis, to meet the security, economy and reliability requirements for the determination of the 110kV, 35kV, 10kV form side of the main wiring, by then the load calculation to determine the scope and power of the main transformer station number, capacity, and models to derive the parameters of the elements, equating network simplification, and substation reactive power compensation. Then select the short circuit short circuit calculations, based on the short-circuit current calculation results and maximum continuous operating current, select and check electrical equipment, including buses, wires, circuit breakers, disconnectors, voltage transformers, current transformers, and to determine the distribution devices. In this paper, while the lightning protection and grounding devices for a simple analysis, and finally carried out ...