【正文】 ................................................................................................ 10 35kV側主接線設計 ............................................................................................ 10 10kV側主接線設計 .............................................................................................11 6 短路電流計算 ............................................................................................................... 13 概述 ........................................................................................................................ 13 產生短路的原因和短路的定義 .............................................................................. 13 短路的種類 .......................................................................................................... 13 短路電流計算的目的 ............................................................................................ 13 短路電流計算的方法和條件 ..................................................................................... 13 短路電流計算方法 ............................................................................................... 13 短路電流計算條件 ............................................................................................... 14 短路電流的計算 ...................................................................................................... 15 ................................................................................................... 15 三相短路電流計算結果表 ..................................................................................... 17 7 電氣設備的選擇 ........................................................................................................... 18 電氣設備選擇的一般條件 ........................................................................................ 18 電氣設備選擇的一般原則 ..................................................................................... 18 電氣設備選擇的技術條件 ..................................................................................... 18 高壓開關柜的選擇 ................................................................................................... 20 35kV側高壓開關柜的選擇 .................................................................................... 20 10kV側高壓開關柜的選擇 .................................................................................... 21 選擇的高壓開關柜型號表 ..................................................................................... 21 母線的選擇及校驗 ................................................................................................... 22 母線導體選擇的一般要求 ..................................................................................... 22 35kV母線的選擇 .................................................................................................. 22 10kV母線的選擇 .................................................................................................. 23 母線選擇結果 ........................................................................................................ 24 互感器的選擇 .......................................................................................................... 24 電流互感器的選擇 ............................................................................................... 24 電壓互感器的選擇 ............................................................................................... 25 熔斷器的選擇 .......................................................................................................... 25 熔斷器概述 .......................................................................................................... 25 35kV側熔斷器的選擇 ........................................................................................... 26 10kV側熔斷器的選擇 ........................................................................................... 26 8 繼電保護的設置 ........................................................................................................... 27 電力變壓器保護 ...................................................................................................... 27 電力變壓器保護概述 ............................................................................................ 27 電力變壓器縱差保護 ............................................................................................ 27 縱差動保護的整定計算 ........................................................................................ 27 變壓器瓦斯保護 ................................................................................................... 28 過電流保護 .......................................................................................................... 29 母線保護 ................................................................................................................. 29 9 變電所的防雷保護 ........................................................................................................ 31 變電所防雷概述 ...................................................................................................... 31 避雷針的選擇 .......................................................................................................... 31 避雷器的選擇 .......................................................................................................... 32 致 謝 ............................................................................................................................. 34 參 考 文 獻 ............................................................................................................... 35 1 前 言 電能是發(fā)展國民經濟的基礎，是一種無形的、不能大量儲存的二次能源。 關鍵詞： 35kV 變電所 設計 Abstract Electric power is the main energy in coal mine system, power supply system is posed of electrical equipment and the distribution line according to a certain mode of connection. The design for the 35kV coal mine surface substation design, aims to establish the 35kV ground substation, provide reliable power supply for coal mine. T