line-to-neutral voltage 中文意思是什麼

line-to-neutral voltage 解釋
線與中性點間電壓
  • 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...
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  • neutral : adj 1 中立的；中立國的。2 不偏不倚，公平的；中庸的；中間的；不倫不類的，不明確的；不鮮艷的，暗淡...
  • voltage : n. 【電學】電壓，電壓量，伏特數。 the working voltage （電氣的）耐壓限度。
  1. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。
  2. 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。
  3. 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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