电力变压器保护毕业论文.doc

WORD格式可编辑 PAGE 专业技术分享 ===================================== 电力变压器保护毕业设计 =====================================摘要 本文主要通过分析原始资料中主要设备的参数，首先，需要对电力系统继电保护原理进行全面系统的复习、查阅相关资料，加深理解；其次，结合相关参数和各种继电保护原理，确定适用于变压器的保护方案，最后，分别对变压器的进行各种保护整定和配置计算，并且根据系统一次设计图给出部分二次设计及其配置图和一般原理图。本次设计中主要采用的保护有瓦斯保护、变压器纵联差动保护、低电压起动的过电流保护、过负荷保护、温度保护。 继电保护是电力系统设计有关事故时减小停电范围、限制事故对设备损害的这样一个领域。电力系统继电保护的设计与配置是否合理，直接影响电力系统的安全运行，故选择保护方式时，满足继电保护的基本要求。选择保护方式和正确的整定计算，以保证电力系统的安全运行。 关键词 继电保护，变压器保护，灵敏度校验，短路电流计算，整定计算 Abstract This paper mainly through the analysis of the original material of main equipment of parameters, first of all, need for transformer protection principle of comprehensive system review, refer to the relevant material, deepen understanding; Secondly, in conjunction with the relevant parameters and all kinds of relay protection principle, determine suitable for transformer protection scheme, then respectively, the transformer protection setting and configuration of calculated according to the system, and gives some secondary design drawings once its configuration diagram and general principle diagram. This design mainly adopts a transformer protection of gas protection, longitudinal league differential protection, over current protection, overload protection, temperature protection. The Relay protection is electrical system design relevant accident reduce outage scope, limit the damage of equipment accidents such a field. Power system protection design and configuration whether reasonable, directly affecting the safe operation of the power system, so choose protection way, meet the basic requirements of the relay protection. Choose the right protection mode and setting calculation, to ensure the safe operation of the power system. Key Words relay protection，transformer protection，sensitivity check，short-circuit current calculation，setting calculation 专业技术分享 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc294769694 摘要 PAGEREF _Toc294769694 \h 1 HYPERLINK \l _