three wire line 中文意思是什麼

three wire line 解釋
三線線路
  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • wire : n 1 金屬線，銅絲，鐵絲，鋼絲；【電學】導線；線路；金屬絲網；【造紙】抄網。2 電信；〈口語〉電報。3...
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. Line - to - neutral voltage in a 3 - phase, 4 - wire, y - connected generator, line - to - neutral voltage is the voltage between a phase and the common neutral where the three phases are tied together

    相電壓在三相四線星形連接的發電機中，相電壓是指三相連接點與每相之間的電壓。
  2. This can fully consider the effect of the structure of transmission line and the selection of lighting parameter etc. by calculating and analyzing various of factor that affect the lightning tripping probability of 500kv double circuit transmission line, we can draw the conclusions : the result by intersecting method is more accord with the practicality circumstance than by existing standard methods, using unbalance high insulation and reverse sequence of wire can reduce the contemporary outage rate of double circuit line, reducing the footing resistance is one of the most efficiency method to reduce the back stroking rate of double circuit transmission line, the double back stroking rate and the single back stroking rate will fall by three ground wire, when the footing resistance is 10 ohm, the back stroking rate by three ground wire is 83 percent of by two ground wire

    在分析輸電線路繞擊耐雷性能時，對線路的雷電屏蔽問題進行了分析，提出對擊距法進行改進，充分考慮了風速的影響因素，編寫了具有工程實用價值的計算線路繞擊耐雷水平的程序，此方法可以充分考慮線路結構和雷電參數等對繞擊率的影響。通過對影響500kv同桿雙回線路雷擊跳閘率的各種因素進行了計算和分析，得到以下結論：採用相交法的計算結果比定義法更符合實際運行情況。採用不平衡高絕緣方式和導線逆相序排列可以大大降低雙回同時跳閘率。
  3. At the heart of slcad is a sophisticated three - dimensional engineering model. this model includes the terrain, the structures and all the wires. the model can be viewed in plan profile sheets. the slcad model is much more than just a picture or cad drawing since slcad understands the relationship between these elements. when you drag a structure off the current alignment slcad will update wire positions. the effects of this structure move will be instantly visible in the plan profile sheet view. in slcad you concentrate on designing your line instead of wasting your time drafting

    有時控制尺寸會有所調整，有時節點板設計會變化一下。傳統繪圖時，面對修改，面對審圖人員發現的錯誤，繪圖人員往往只能夠手工一筆一劃地修改dwg圖形，工作量非常大。雖然有自動成圖軟體的支持，但是對待修改圖的工作，依賴自動成圖軟體重新從頭再生成一遍圖形既麻煩又可能帶來其它意想不到的問題。
  4. The generators are of three - phase four - wire type, making use of star connection with neutral point. the rated line voltage is 400v. phase voltage 230v. frequency 50hz, power factor 0. 8 ( lag ). it can provide 60hz and the other voltage ' s generator according to necessary

    本發電機為三相四線制，採用帶有中性點的星接法，額定電壓為400伏，相電壓為230伏，頻率50赫，功率因素0 . 8 （滯后）根據用戶需要，也可提供60赫及其它電壓值的發電機。
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