110kv变电站防雷保护.pdf

摘 要 根据设计任务书的要求，本次设计为 110kV 牵引变电站的防雷设计，变电 站是电力系统中重要组成部分，而且变电站的电气部分要装设合理的避雷装置和 接地装置，因此，它是防雷的重要保护对象。 如果变电站发生雷击事故，将造成大面积的停电，给人民生活和社会生产带 来重大不便，还有可能给国家造成大经济损失，这就要求防雷措施必须十分可靠 变电站的防雷设计应做到设备先进、保护动作灵敏、安全可靠、维护方便，在此 前提下，力求经济合理的原则。 本次设计，主要对变电站的主要设备进行选择，重点设计变电站的防雷部分， 包括变电站进线段保护、防直击雷、防感应雷以及变电站二次设备的防雷。通过 对各种避雷器的性能对比，结合变电站实际情况，确定变电站的避雷器的选择， 并考虑变电站控制系统的防雷，提出防雷方案。 氧化锌避雷器以其优越的性能，越来越受到电力行业的关注。本次设计，将 结合氧化锌避雷器性能的优点，并结合变电站设计的情况，讨论氧化锌避雷器在 变电站中的应用前景。 关键词：变电站，避雷器，防雷保护 I Abstract According to the requirement of the design spec ification, this design is a 110kV traction substation lightning protection design. Substation is an important part of the electric power system, otherwise the electric part of which needs to install reasonable lightning device and earthing device, therefore substation is the important protection object of the lightning protection. If substation suffers electric shocks,it would cause a large area of power cut, which brings great inconvenient in peoples life and social production, even great economic losses to our country. This requires quite reliable lightning protection. The substation lightning protection design should have advanced equipment, sensitive protect motion,be safe and reliable, convenient maintain. Based on these, try the best to be economic rationality. Through the parameter operation of the substation, The most important key to design the transformer substation of lightning protection, including substation into line protection, prevent lighting, prevent induction lightning and the lightning protection substation secondary equipment.confirm the main connection form and select of