short current protection system 中文意思是什麼

short current protection system 解釋
短路保護裝置
  • short : n 蕭特〈姓氏〉。adj 1 短的；短暫的。 （opp long）。2 矮的；低的 （opp tall）。3 短期的。4 簡短的...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  • protection : n 1 保護，保衛，防禦，掩護，包庇，照顧 （from; against）。2 保護者，防護物 （against）; 〈美俚〉...
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  2. The sieries product is suitable for the system with current 50hz - 60hz and the rated voltage of 3. 6kv 40. 5kv. it can be matched with other protective electrical equipment vacuum connection, loading switch etc. it can also be used as the overload or short circuit protection parts for high voltage motor, transformer, voltage mutual inductance attenuator and other power equipment

    本系列產品適用於交流50hz - 60hz ，額定電壓3 . 6kv 40 . 5kv系統，可與其它保護電器如真空接觸器，負荷開關等配合使用，作為高壓電動機電力變壓器電壓互感器及其它電力設備的過載或短路保護等元件。
  3. In this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction

    該傳感器具有正常電流的測量和短路故障時的保護功能，並且預留了與上位機的通訊介面，接受上位機的指令並向上傳送電網的電流參數。
  4. According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction

    本文在考察了國內外電流互感器發展現狀的基礎上，提出了一種基於rogowski線圈的電流互感器，該互感器具有正常電流的測量和短路故障時的保護功能，並且預留了與上位機的通訊介面，接受上位機的指令並向上傳送電網的電流參數。
  5. In order to fulfill the protection more effectively in the short circuit failure, a new method based on the varying rate of the system current is developed. in order to get the virtual value of the system current, considering the characteristic of the rogowski coil output, a new integral method based on software is adopted and the traditional integrator is omitted

    為更好地實現短路電流的保護，本文針對rogowski線圈測量電流的特點，結合對短路電流變化規律的分析，提出了一種基於電流變化率判斷短路發生的新型判據，並通過模擬實驗對本文理論部分進行了初步的驗證。
  6. When a high - power electric motor is starting, the current is heavy and the traditional protection strategy can ' t distinguish if it is a short - circuit current or the normal starting current, so the system is tend to make wrong

    摘要大功率電動機啟動時電流較大，傳統的保護策略無法區分是短路電流還是正常啟動電流，易產生誤動。
  7. Based on the activex technology, electric component menus and toolbars are created in this paper, with which a net wiring diagram for power electronics system is drawn. take advantage of autocad events, it is easy to fully carry out the consistency between graphics and data, from which users can manage databases and visual operation on graphics. the graphics about short - circuit current distribution and protection coupling are auto - drawn by using the autocad entity and text objects

    本文採用activex技術，創建電氣元件菜單和工具欄，方便用戶繪制電力系統網路接線圖；利用autocad事件，實現圖形數據的一體化，從而可以使用戶在圖形上操作和管理數據庫以及計算的可視化操作；利用autocad的圖形和文本對象來自動繪制短路電流分布圖和保護整定圖。
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