简介:摘要合理配置电压层级序列,是电网发展战略的重要内容之一,国内首次对220/20千伏降压等级进行全方位技术论证,并在深圳某区进行试点。本文阐述了220/20千伏电压层级的应用条件和深圳某区的城市特征,并介绍《深圳某区的220kV/20kV专项规划》在负荷预测、变电站布点、系统接线及高压走廊的做法,使规划面向实施,更具可操作性。
简介:Manystudentsfindtheexperienceofattendinguniversitylecturestobeapuzzlinganddisappointingexperience.Thelecturerspeaksforoneortwohours,perhaps1thetalkwithslides,writingdownimportantinformationontheblackboard,2readingmaterialandgivingout3.Thenewstudentseestheotherstudentscontinuouslywritingonnotebooksand4pointsand6becomehardevenforthe7tounderstand.Mostinstitutionsprovidecourseswhich8newstudentstodeveloptheskillstheyneedtobe9listenersandnote-takers.