【正文】 1220kV 輸變電新建工程可 行 性 研 究 報(bào) 告 21 工程概述 ....................................................................................................................1 設(shè)計(jì)依據(jù) .............................................................................................................1 工程概況 .............................................................................................................3 設(shè)計(jì)水平年 .........................................................................................................3 主要設(shè)計(jì)原則 .....................................................................................................3 設(shè)計(jì)范 圍及配合分工 .........................................................................................42 電力系統(tǒng)一次部分 ....................................................................................................5 項(xiàng)目所在地區(qū)簡況 .............................................................................................5 電力系統(tǒng)現(xiàn)狀 .....................................................................................................6 電力系統(tǒng)發(fā)展規(guī)劃 ...........................................................................................10 項(xiàng)目建設(shè)的必要性 ...........................................................................................19 項(xiàng)目在電力系統(tǒng)中的作用和供電范圍 ...........................................................20 接入系統(tǒng)方案分析 ...........................................................................................21 項(xiàng)目建設(shè)規(guī)模 ...................................................................................................34 推薦方案電氣計(jì)算 ...........................................................................................34 系統(tǒng)對變電站電氣主接線及有關(guān)電氣設(shè)備參數(shù)的要求 ...............................44 閑置物資再利用 .............................................................................................47 項(xiàng)目合理的投產(chǎn)時(shí)機(jī) .....................................................................................47 系統(tǒng)結(jié)論及相關(guān)建議 .....................................................................................473 電力系統(tǒng)二次部分 ..................................................................................................49 概述 ...................................................................................................................49 系統(tǒng)繼電保護(hù)及安全自動裝置 .......................................................................50 調(diào)度自動化 .......................................................................................................58 系統(tǒng)通信 ...........................................................................................................624 變電站站址及工程設(shè)想 ...........................................................................................81 變電站站址 .......................................................................................................81 工程設(shè)想 ...........................................................................................................83 .....................................................................................112 系統(tǒng)概況及出線規(guī)劃 ......................................................................................112 輸電線路部分概況 ....................................................................................112 變電站進(jìn)出線位置 ....................................................................................112 線路路徑方案 ..................................................................................................112 路徑方案 ....................................................................................................112 路徑原則協(xié)議 ............................................................................................113 工程設(shè)想 ..........................................................................................................113 主要設(shè)計(jì)氣象條件 ....................................................................................113 線路導(dǎo)地線型式 ........................................................................................115 污區(qū)劃分和絕緣配合 ................................................................................116 金具選型和防振 ........................................................................................1183 防雷與接地 ................................................................................................119 工程地質(zhì)簡況 ............................................................................................120 通信保護(hù) ....................................................................................................120 主要桿塔和基礎(chǔ)型式 ................................................................................1206 環(huán)境保護(hù)及水土保持 .............................................................................................123 變電部分 .........................................................................................................123 線路部分 .........................................................................................................1257 項(xiàng)目的節(jié)能設(shè)計(jì)分析 .............................................................................................127 系統(tǒng)部分 .........................................................................................................127 變電部分 .........................................................................................................127 線路部分 .........................................................................................................128 項(xiàng)目節(jié)能標(biāo)準(zhǔn)煤 .............................................................................................1298 抗災(zāi)減災(zāi)分析 .........................................................................................................130 系統(tǒng)一次抗災(zāi)能力分析 .................................................................................130 變電工程抗災(zāi)能力分析 .................................................................................130 線路工程抗災(zāi)能力分析 .................................................................................1309 資產(chǎn)全生命周期分析 .....................................................