110kv变电站二次系统设计1.doc

摘 要 本论文主要讲述的是110kV变电站继电保护的配置，整定计算。目前，110kV变电站主要是直接向广大用户供应和分配电能，是包括发电、输变电和配电在内的整个电力系统的最终环节。由于电力系统具有发、供、用同时的特点，一旦配电系统发生故障，将造成系统对用户供电的中断，同时也有可能使整个电力系统受到影响，甚至被破坏,造成巨大的经济损失给变电站的设备装设动作可靠、迅速、性能完善的保护，把故障影响限制在最小范围内What this text mainly told is system disposition of relay protection of 110kV distribution, calculate whole definitely. At present, 110kV transformer substation to supply the masses of users with and assign the electric energy directly mainly, it is the final links of the whole power system including generate electricity , the power transmission and transformation and distribution. Because the power system takes place, supports, uses the characteristic at the same time , once the distribution system breaks down, the ones that cause the system to supply power to users break down, may make the whole power system influenced at the same time , even destroyed, cause the enormous economic losses. So must improve 110kV distribution dependability of system, apparatus to give transformer substation install movement reliable , rapidly , complete protection of performance, influence the trouble to confine to minimum range, guarantee to offer the lasting electric energy to users. The relay protection of power system and security automatics are important components of the power system. It operates and plays an extremely important role safly in users incessant power supply steadily in the power system, the power system without relay protection can not run . The peace and steadiness that design and disposition of relay protection of power system influence the power system directly rationally runs . It design and it is the improper since it dispose,relay protection can movements correct,it thus not will expand by power cut range of accident. Bring the serious evil consequence to national economy, may also cause the apparatus incident of personal sum sometimes. So for guarantee 110kV normal r