110KV变电站继电保护

北京理工大学珠海学院 2020 届本科生毕业设计南方电网某 110KV 变电站电气部分设计---继电保护部分设计南方电网某 110KV 变电站电气部分设计---继电保护部分设计摘要首先根据原始资料上所给系统、线路及各类负荷的参数和依据 110KV 降压变电站的主接线、以及主要设备的选型情况，拟定可在技术上实现的多个方案，通过整定计算和灵敏度的校验，综合比较拟定配置方案。其次，根据选定的变压器、母线、电流电压互感器等参数，针对性地提出保护配置意见并列表汇总。利用短路计算的结果，为变压器、母线以及线路等进行整定校验，再列表汇总数据。最后为继电保护装置运行仿真和校验，模拟实际运行时可能出现的各类故障，以验证继电保护可靠性和安全性。最终绘制继电保护配置图纸，完成 110KV 降压变电站继电保护部分的设计。关键词：110KV 降压变电站；继电保护；短路电流北京理工大学珠海学院 2020 届本科生毕业设计Electrical part design of a 110KV substation of China southern power grid corporation-- relay protection part designAbstractFirstly, according to the parameters of the system, line and various loads given in the original data, and according to the main wiring of the 110KV step-down substation and the selection of main equipment, a number of schemes that can be technically realized are formulated. Through setting calculation and sensitivity verification, the configuration scheme is comprehensively compared and formulated.Secondly, according to the selected transformer, bus, current and voltage transformer and other parameters, the protection configuration Suggestions are put forward and the list is summarized.Using the results of short circuit calculation, set and verify the transformer, bus and circuit, and then list and summarize the data.At last, it simulates and verifies the operation of the relay protection device, and simulates all kinds of possible faults during the actual operation, so as to verify the reliability and safety of the relay protection.The ...