KV降压变电站继电保护设计.docVIP

贺州学院本科生毕业论文（设计） PAGE / NUMPAGES PAGE I 封 面 作者：Pan Hongliang 仅供个人学习 电气工程及其自动化物理与电子信息工程系162011某35KV降压变电站变压器继电保护的配置及整定计算2010275 电气工程及其自动化 物理与电子信息工程系 1 6 2011 某35KV降压变电站变压器继电保护的配置及整定计算 2010 27 5 电气工程及其自动化化150774743220810617145物理与电子信息工程系（三号黑体）2752011教师余长庚唐丽秋2008级某35KV降压变电站变压器继电保护的配置及整定计算 电气工程及其自动化化0810617145 物理与电子信息工程系（三号黑体） 27 5 2011 教师 余长庚 唐丽秋 2008级 某35KV降压变电站变压器继电保护的配置及整定计算 某35KV降压变电站变压器继电保护的配置及整定计算 摘 要 本次毕业设计的题目是《某35kV降压变电站的主变保护设计》。根据设计的要求，在设计的过程中，用到了35kV降压变电站的绝大多数的基础理论和设计方案，因此在设计过程中侧重了知识系统化能力的培养。设计可分为几部分：设计方案的确定；系统负荷计算，短路电流的计算；主变压器继电保护的配置、整定及校验的确定。 通过本次设计，学习了设计的基本方法，巩固三年以来学过的知识，培养独立分析问题的能力，而且加深对变电站的全面了解。 关键词：负荷计算，无功功率， 短路电流，继电保护 ABSTRACT This graduation project topic is: A 35kV step-down transformer substation of main transformer protection design .According to the design request, the design process using a lot of knowledge, therefore how knowledge systematic became the key. If this design using the factory of the overwhelming majority of power supply of basic theory and design scheme, so in the design process emphasis on knowledge systematic ability. Design can be divided into several parts: load calculation and reactive power calculation and compensation, Substation position and form the choice, Main transformer substation sets and capacity and main wiring schemes choice; The calculation of short-circuit current, Once substation equipment choice and calibration, Substation high and low voltage circuit choice; The secondary circuit substation plan selection and relay protection setting, Lightning protection and grounding device is identified. Through this design, has studied the design essential method, since the consolidated four years have studied the knowledge, raises the independent analysis question ability, moreover deepens to the transformer substation comprehensive understanding. Key words: Load calculation Reactive power Short-circuit current Relay protection 目 录 摘 要…………………………………………………………………………………………1 Abstract……………………………………