兰州交通大学毕业设计10kV配电室设计2015word200733P版.docx

2015.610kV配电室设计 |张小凡|摘 要在快速发展的当今世界，我们越来越离不开电能，电能作为所有能源中最重要的一种，它关系着整个国家乃至世界的发展与稳定。在整个电力系统中供配电能成为了电气设计的一个重要的环节。在满足其安全、可靠、优质、经济等基本条件的前提下才能更好地为国民经济服务，推动社会发展。只有好的供电配电环节，才能造就高效率的生产和高品质的生活。本次设计的是职业技术学院10kV配电室。配电室占地约120平方米，高压侧为10kV，低压侧为0.4kV，设有值班室和工具间。配电室主接线采用单母线分段接线方式，低压配电系统采用TN-S接线方式。本次设计任务包括：负荷统计、容量计算、无功补偿计算、短路电流计算、设备选型、防雷接地等。负荷计算采用的是需要系数法，导线截面按发热条件进行选择，并按热稳定条件进行校验。开关柜按照正常工作条件进行选择。设计过程中，通过参阅相关的供配电系统设计、建筑电气设计等相关的规范和设计手册，完成了对该校供配电系统的初步设计，同时也提高了我们独立分析和解决电气设计问题的能力。本设计按照国家相关设计标准规范要求，合理选择用电设备，能基本满足使用要求。关键词：10kV配电室；配电系统；负荷计算；电气设计AbstractIn todays world of rapid development, more and more we cannot do without electricity, electricity as one of the most important of all the energy, which is related to the development and stability of the whole country and the world. In the power system of power supply and distribution will become an important part of the electrical design. In order to meet the basic conditions for its safety, reliability, quality, economy and better service for the national economy, promoting the development of society. Only good power supply and distribution sectors, to create efficient production and high quality of life.The design of the Zhiye Technical College 10kV distribution room. The distribution room covers an area of about 120 square meters, the high-voltage side is 10kV, the low pressure side of 0.4kV, has a duty room and tool room. The main wiring distribution by single busbar wiring, low voltage power distribution system using TN-S connection mode. The task of this design include: load statistics and capacity calculation and reactive power compensation calculation, short-circuit current calculation, equipment selection, lightning protection and grounding etc.. The load is used to calculate the demand coefficient method, according to the conditions of the heating wire section selection, and checked by the thermal stability conditions. The switch cabinet in accordance with the normal working conditions of choice.In the design process, by referring to