塑料制品厂全厂总降压变电所及配电系统设计.docVIP

课程设计说明书 题目: 塑料制品厂全厂总降压变电所及配电系统设计 院（部）： 电气与信息工程学院 专业班级： 电气10-6班 学生姓名：刘飞强 易怀权 黄 超 彭德霖 李 建 楚衍春 指导教师： 杨岸 2013 年 7 月 6 日 摘要 某塑料制品厂全厂总配变电所及配电系统设计 根据国家供电部门的相关规定，画出总配变电所及配电系统的主接线图。电气主接线对电气设备的选择，配电所的布置，运行的安全性、可靠性和灵活性，对电力工程建设和运行的经济节约等，都有很大的影响。 关键词：变电所，负荷计算，设备选型，继电保护  ABSTRACT The whole plant distribution substation and power distribution system design of a plastic products factory is for power plant design. The design makes the narrative about the factory power supply, main equipment selection, protection device configuration and grounding system for lightning protection, which also includes the load calculation of the factory, the short circuit current calculation of the high pressure side and low pressure side, equipment selection and validation, the main equipment relay protection design, power distribution equipment design, lightning protection and grounding design. This design is based on the calculation of the active power, reactive power and apparent power transformer and the size of the corresponding main equipment main parameter, then works out the compensation computing power according to user requirements to voltage .Thus it can obtain the desirable size and number of compensation capacitor. According to the relevant provisions of the national electricity sector, the design draws the main connection diagram about the total distribution substation and power distribution system. Main electrical connection have great influence on the electrical equipment selection, the layout of the distribution, operation safety, reliability and flexibility, also power engineering construction and economy of the operation and so on. Keywords: substations, load calculation, equipment selection, relay protection 目录 摘要 - 1 - ABSTRACT - 2 - 目录 - 3 - 1 设计任务 - 5 - 1.1 设计原则 - 5 - 1.2 设计内容 - 5 - 1.3 设计要求 - 5 - 1.4 设计依据 - 5 - 2 负荷计算 - 6 - 3 无功功率计算和电气设备选择 - 7 - 3.1无功功率计算及补偿电容器选择 - 7 - 3.2变压器选型