35kv变电站多功能继电器保护设计摘要：电力系统的保护是在电力系统中是十分重要的，在对电力系统进行保护的这些装置中，最重要的一部分就是继电保护。可以这么说，继电保护在电力系统发生故障的时候可以将损失降低到特别小，甚至为零。因此本文就以35kV变电站进行继电保护设计。在本论文中，首先说明了为什么要进行继电保护，其次继电保护有哪些重要的意义。在进行完上述的分析之后，对相关的技术的发展历程进行了详细的叙述和分析。同时对所要进行继电保护设计的35kV的变电站进行了相关研究，研究如何对其进行继电保护设计。随后就是对短路电流进行计算，对继电保护进行设计进行了详细的概述。包括相关的技术的选择，定值计算和整定计算。最后设计了35kV变电站继电保护综合自动化系统的结构以及防雷保护。本文所设计的继电保护装置具有相当高的实用价值和十分重要的意义。关键词：35kV,变电站，继电保护，整定计算Protection design of multifunctional relay in 35kv substationAbstract:The protection of the power system is very important in the power system,in the protectionof the power system of these devices,the most important part is relay protection.It can be said thatrelay protection can reduce the loss to a very small or even zero in case of failure of the power system.Therefore,this paper to 35kV substation relay protection design.In this paper,the paper first explains why relay protection should be carried out,and then explains thesignificance of relay protection.After the above analysis,the development process of relatedtechnologies is described and analyzed in detail.At the same time,the paper also studies the relayingdesign of the 35kV substation.Then the short circuit current is calculated and the relay protection isdesigned in detail.Including the selection of relevant techniques,fixed value calculation and settingcalculation.Finally,the structure of integrated automation system of relay protection and lightningprotection for 35kV substation are designed.The relay protection device designed in this paper has highpractical value and very important significance.Keywords:35kV,Transformer substation,Relay protection,Setting calculation目录1.2国内外发展现状.1第2章35kV变电站简介及继电保护概述.32.1变电站简介.32.2继电保护的设计内容、原理与要求4第3章短路电流计算…63.2短路计算的规定和假设63.2.2短路计算假设第4章35kV变电站继电保护装置选择104.1阶段式电流保护的选择.。101112第5章35kW变电站继电保护定值整定计算.·135.1变压器保护整定原则及对主变保护的要求13135.3纵联差动保护.135.3.1基本侧动作电流计算....145.3.2继电器动作电流和匝数计算..145.3.3非基准位置平衡和工作绕组的匝数.。155.3.4灵敏度校验…155.3过电流保护..155.4过负荷保护.…164.5冷却风扇启动.…16第6章继电保护自动化和防雷保护设计..·176.1继电保护装置自动化功能要求..·176.3防雷保护设计19第7章总结.20参考文献：21