-某钢球厂装配车间10kV变电所及低压配电设计.doc

某钢球厂装配车间10kV变电所和低压配电设计 摘 要 本设计首先对装配车间整个构造进行规划，结合变电所的供电条件，设备分布及负荷分析，变压器的型号及位置选择。然后进行负荷计算，根据功率因数不小于0.9的要求来进行无功补偿计算，确定主接线的方案。在两种方式下短路点电流计算以保证接线正确，所选设备保证能正常运行。其次对变电所一次设备的选择，校验从而来选择高低侧的母线接线，再对高低压侧二次回路的接线选择，设备安装及其保护整定与校验。最后再根据以上计算的条件，进行接地装置和防雷保护。 本设计采用两台主干式变压器，另外还有一个备用的以防两台主变压器其中一个发生故障时而备用。对于其负荷计算，无功补偿，以及二次保护的整定校验中均按照有关规定公式计算，对于参数都是根据实际的分析情况而给出的，还有一些性能指标参数，我是根据西安理工大学余建明所主编的第4版供电技术上的备注参阅的。变电所主接线采用的是Yyno耦合型接线，以保证安全可靠的电力供应。 本设计的一次设备在运用方面，我做了一些调查。在保证主接线正确的情况下，从而使电力系统正常运行。针对静电电容器，高压熔断器等，我做了深入的了解并在网上查阅有关性能指标参数，从而保证设计方案正确合理。 关键词：低压配电系统，无功补偿，整定校验，短路电流计算 Steel ball factory assembly shop 10 kV substation and low power distribution plan ABSTRACT The design of the entire first assembly plant construction planning, combined substation power supply conditions, equipment distribution and load analysis, type and location of the transformer. Then load calculation, according to the power factor of not less than 0.9 to the requirements for reactive power compensation calculations to determine the main wiring scheme. the selected equipment to ensure normal operation. Secondly, once the substation equipment selection, check the level in order to select the side of the bus terminal, and then the high and low side of the secondary circuit wiring selection, installation and protection setting and calibration. Finally, according to the conditions of the above calculation, grounding and lightning protection devices. This design uses two main transformers, plus a spare in case one of the two main transformer fault backup sometimes occur. For its load calculation, reactive power compensation, calibration and tuning are a secondary protection in accordance with the relevant provisions of the calculation formula, I was under Xian Je Kin Ming University of the editor of the fourth edition of power supply technical notes refer. Substation main connection is used Yyno coupling type connection, in order to ensure safe and reliable supply of electricity. The design of the primary equipment in