某小区变电所设计.docx

德阳二重集团公司万安小区供配电所设计(一次部分)摘　要:本设计项目根据设计任务书指定和我们的专业特点的要求，体现我们的实践动手能力、创新思维、解决问题的能力和对所学知识的综合运用能力。要求根据德阳二重集团公司晚安小区所取得的电源及小区用电负荷的实际情况，并适当考虑到小区生活用电量的提高。根据搜集的负荷资料进行负荷计算，功率因数不符合要求的考虑无功功率补偿，按照安全可靠、技术先进、经济合理的要求，确定变电所的位置和型式，通过计算确定变电所主变压器的台数、容量与类型，选择变电所主接线方案。通过短路电流的计算，进行高低压设备和进线的选择和校验。并绘制出设计主接线图纸，变电所布置图。关键词：计算负荷；变压器；主接线； Summary: The design of the project according to the design plan specifies the characteristics and requirements of our professional, to reflect our practical ability, creative thinking, problem-solving skills and the ability to apply knowledge of the integrated. Requirements under the dual group of Deyang made good night residential electricity load cell power supply and the actual situation, with due regard to the improvement of residential electricity consumption of life. According to data collected load load calculation, power factor does not meet the requirements to consider reactive power compensation, in accordance with the safe, reliable, advanced technology, economic and reasonable request, to determine the location and type of substation, substation main transformer by calculation to determine The station number, volume and type, select the substation main connection program. Through the short circuit current calculation, the high-voltage equipment and into the line selection and verification. And drawing the design drawings of the main wiring, substation layoutKeywords: computational load; transformer; main connection目录1.设计说明11.1小区设计的一般原因11.2设计的内容及步骤11.2.1设计内容11.2.2设计步骤11.3原始资料11.3.1设计要求11.3.2 设计依据21.3.3万安小区负荷统计资料31.3.4供电电源请况61.3.5气象资料61.3.6地质水文资料62.计算负荷及功率补偿62.1负荷计算的内容和目的62.2 负荷计算与无功补偿73.主接线方案的选择103.1变电所主变压器容量及变压器的型号选择103.2变电所主接线方案的选择113.2.1主接线的选择原则113.2.2装设一台主变压器的主接线方案113.2.3装设两台主变压器的主接线方案123.3主接线方案的技术经济比较134.短路电流的计算154.1短路电流计算的目的及方法154.2本设计采用标幺值法进行短路计算154.2.1高压电网短路电流计算154.2.2低压电网短路电流的计算185.高低压设备的选择和开关柜的选择及校验215.1高压设备的选择及校验215.1.1变电所高压进线电缆的选择及校验215.1.2高压负荷开关的选择及校验215.1.3 熔断器组合电器的选择及校验225.1.4电流互感器的选择及校验235.1.5电压互感器的选择及校验235.2变电所高压开关柜的选择及校验235.3低压设备的选择及校