煤矿110KV变电所主变监控系统设计(毕业设计)

本科毕业设计说明书煤矿110kV变电所主变监控系统设计COALMINE110KVSUBSTATIONMAINTRANSFORMERMONITORINGSYSTEMDESIGN学院（部）：电气与信息工程学院专业班级：电气工程08-5班学生姓名：梅二亮指导教师：杨岸副教授2012年月日安徽理工大学毕业设计I煤矿110kV变电所主变监控系统设计摘要本次设计的主要内容是变电所的主变压器的选择、主接线的选择、短路计算、变电所保护及监控装置等的选定进行设计，通过对变压器以及线路保护配置的选择，来保证电力系统的安全运行。其主要采用的保护有继电保护、过电压保护、瓦斯保护、变压器差动保护。本次设计是我们在校期间进行的最后一个非常重要的综合性实践教学环节，也是我们学生全面运用所学基础理论、专业知识对实际问题进行设计（或研究）的综合性训练，同时还是我们将来走向工作岗位而奠定的基本实践。通过本次设计可以增强我们运用所学知识解释实际问题的能力和创新能力，以便更好地适应工作的需要。电力系统继电保护的设计与配置是否合理，直接影响电力系统的安全运行，故选择保护方式时，满足继电保护的基本要求。选择保护方式和正确的计算，以保证电力系统的安全运行。关键词：电气主设备，继电保护，监控系统安徽理工大学毕业设计IICOALMINE110KVSUBSTATIONMAINTRANSFORMERMONITORINGSYSTEMDESIGNABSTRACTThisimportanttaskofthisdesignisprotectiverelayingdesignofsabstationthroughtheprotectivedistributionofthetransformerandlines.EnsuretheElectricpowersystem’ssafeoperation.Mainlyusestheprotectionhasthegastoprotect,thetransformerdifferentialmotionprotection,theelectriccurrent,theload,thedistanceprotection.Thisdesignisweinschoolperiodcarriesonlastthecountformuchcomprehensivepracticeteachinglink,alsoisourstudentcomprehensivelyutilizesstudiesthebasictheory,thespecializedknowledgecarryonthedesigntotheactualproblem(orresearch)thecomprehensivetraining,simultaneouslyorwefuturewillmovetowardsthebasicpracticewhichtheworkpostwillestablish.Maystrengthenusthroughthisdesigntoutilizestudiestheknowledgeexplanationactualproblemtheabilityandtheinnovationability,inordertomeetstheworkneedwell.TheElectricpowersystem’sprotectiverelayingdesignanddistributionwhetherisrationaldirectlyaffectsafeoperationwhoselectingprotectiveduty.Shouldsatisfybasicrequiresofprotectiverelayingselectingprotectivedutyandrightcalculatedsettingensurestheelectricpowersystem’ssafeoperation。KEYWARDS：electricapparatus，relayprotection，monitoredcontrolsystem安徽理工大学毕业设计i目录摘要.............................................................................................................................................IABSTRACT..............................................................................................................................II1绪论........................................................................................................................................11.1变电所监控系统概述......................................................................................................11.2变电所监控系统的特点及功能......................................................................................21.2.1变电所监控系统的特点...........................................................................................21.2.2变电所监控系统的功能............................................................................................22变电所负荷计算和变压器的选择........................................................................................32.1计算负荷定义..................................................................................................................32.1.1计算负荷目的............................................................................................................32.1.2计算负荷的方法........................................................................................................32.2矿井用电负荷计算（需要系数法）..............................................................................32.3功率因数补偿的目的和方案..........................................................................................62.4无功补偿的计算及设备选择..........................................................................................62.5主变压器的选型和损耗计算..........................................................................................72.5.1变压器的选型............................................................................................................72.5.2变压器的损耗计算....................................................................................................73变电所主接线方案的确定及短路电流的计算..................................................................93.1变电所主接线的基本要求..............................................................................................93.2变电所的主接线设计方案和分析..................................................................................93.3110KV架空线的选择和校验.........................................................................................103.3.1110kV架空线的选择..............................................................................................103.3.2110kV架空线的校验..............................................................................................103.4短路电流及其计算........................................................................................................113.4.1短路电流的种类......................................................................................................113.4.2计算短路电流的目的..............................................................................................113.4.3短路电流的计算......................................................................................................114变电所电气设备选择..........................................................................................................144.1母线的选择.............................................................................