负荷计算及无功功率补偿计算

摘要本设计以工厂生产实际为依据，以变配电所的最佳运行状态为基础，系统的阐明了变电所设计的基本方法和步骤，经过多方面的校验，是满足实际生产需要的一套最优设计方案。本设计选择了一些主要的电气设备。其中内容涉及到整个变配电所的概述；用电的负荷计算与变压器的选择；电气主接线设计，短路计算，变电所电气设备的选择及校验（包括断路器、隔离开关、电流互感器、电压互感器、母线等），变电所的防雷与接地。分章、分节进行阐述，条理清晰，目的明确。各章、节分别以文字叙述与大量实际参数计算相结合，并绘制部分图示和表格更为直观的体现设计内容。关键词：变配电所，主变压器，主结线方案，防雷保护AbstractThepresentdesignisbasedontheactualproductionplantinordertochangethedistributionofthebestrunstate-basedsystemtoclarifythebasicdesignofthesubstationmethodsandstepsthroughthevariouscheck,istomeettheactualneedsoftheproductionofaSetstheoptimaldesign.Thisdesignchoiceofanumberofmajorelectricalequipment.Onecoveringthewholeoverviewofthedistributionchange;electricitytransformerloadcalculationandchoice;themainelectricalwiringdesign,calculationofashortcircuit,electricalsubstationequipmentandthechoiceofchecking(includingcircuitbreakers,isolationswitches,thecurrentmutualinductance,Voltagetransformer,bus,etc.),lightningprotectionandgroundingofthesubstation.Sub-chapter,sub-sectionelaborate,theclarity,aclearpurpose.Chapters,thetextdescriptionofeachsectionwithalargenumberofparameterstocombineactualanddrawingiconsandformspartofamoreintuitivedesignreflectsthecontent.Keywords:variabledistribution,themaintransformer,themainconnectivityprograms,lightningprotection目录摘要..........................................................................................................................................-0-第一章负荷计算及无功功率补偿计算..................................................................................-0-一、负荷计算的内容和目的..............................................................................................-0-二、负荷计算的方法........................................................................................................-0-三、各用电车间负荷计算..................................................................................................-0-四、全厂负荷计算..............................................................................................................-1-第二章变配电所所址和型式的选择......................................................................................-2-第三章主变压器的选择和主结线方案的设计......................................................................-2-一、主变压器的选择..........................................................................................................-2-二、主结线方案的设计......................................................................................................-3-第四章短路电流计算..............................................................................................................-7-一、短路电流计算..............................................................................................................-7-二、作出系统的简化等值电路图......................................................................................-7-三、变压器的各绕组电抗标幺值计算..............................................................................-8-四、10KV侧短路计算.......................................................................................................-8-第五章电气设备的选择........................................................................................................-12-一、110KV侧断路器的选择...........................................................................................-13-二、110KV隔离开关的选择...........................................................................................-13-三、敞露母线选择............................................................................................................-14-四、110KV电流互感器选择...........................................................................................-15-五、电压互感器的选择....................................................................................................-16-六、高压开关柜的选择....................................................................................................-16-七、10KV侧高压开关柜的选择.....................................................................................-17-第六章变配电所二次回路方案的选择及继电保护装置的选择与整定..........................-18-一、变电所主变保护的配置............................................................................................-19-二、220KV、110KV、10KV线路保护部分..................................................................-20-第七章变电所防雷保护与接地装置的设计........................................................................-21-一、概述............................................................................................................................-21-二、防雷保护的设计........................................................................................................-21-三、接地............................................................................................................................-22-结论........................................................................................................................................-24-致谢........................................................................................................................................-25-参考资料.........................................................................................................................................26第