three-phase short circuit 中文意思是什麼

three-phase short circuit 解釋
三相短路
  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • 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...
  • circuit : n 1 （某一范圍的）周邊一圈；巡迴，周遊；巡迴路線[區域]；迂路。2 巡迴審判（區）；巡迴律師會。3 【...
  1. Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

    監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。
  2. In this paper, computerized algorithm of three - phase sudden - short - circuit is also deeply studied by building software - hardware platform

    本文在構建的軟硬體平臺上又深入研究了三相突然短路試驗的計算機演算法。
  3. Short - circuit current calculation in three - phase a. c. systems

    三相交流系統短路電流計算
  4. Discussion on calculation method of three - phase short - circuit current

    三相短路電流計算方法的探討
  5. Short - circuit currents in three - phase a. c. systems - calculation of currents

    三相交流系統內短路電流.電流的計算
  6. Short - circuit currents in three - phase a. c. systems - part 0 : calculation of currents

    三相交流系統短路電流.第0部分:電流計算
  7. Impedance - matching balanced traction transformers ( balanced transformers in this paper for short ) are step - down transformers, they transfer symmetrical three phase voltage in primary side to perpendicular two phase voltage in secondary side. they are different from any other transformers, so their short - circuit current analysis and short - circuit test method must be taken into special account

    阻抗匹配平衡牽引變壓器（本文中簡稱平衡變壓器）是一種將一次側三相對稱電壓變換為二次側二相垂直電壓的降壓變壓器，它不同於已有的任何一種變壓器，短路電流的分析計算和短路試驗必須予以重新研究。
  8. Gb1094. 5 - 85 power transformers part 5 ability to withstand short circuit only applies to power transformers, not to balanced transformers. if short - circuit test on balanced transformers can be performed by means of single phase supply instead of three phase supply, and other special transformers can also be done in this way, so it is very significant to improve test capacity of transformer laboratory in our country

    變壓器的短路強度只能通過短路試驗來驗證，國家標準gb1094 . 5 - 1985 《電力變壓器第5部分承受短路的能力》只適用於電力變壓器，對平衡變壓器等特殊變壓器並無具體規定，對于平衡變壓器，如果可以用單相電源預先短路法模擬三相電源的短路試驗，那麼其它特種變壓器的短路試驗也可以參照進行，這對提高我國變壓器試驗室的試驗能力具有重要意義。
  9. Two methods for improving short - circuit ratio of the three - phase synchronous generator

    提高三相同步發電機短路比的兩種方法
  10. Guide for short - circuit current calculation in three - phase a. c. systems of hydropower engineering

    水電工程三相交流系統短路電流計算導則
  11. Short - circuit current calculation in three phase a. c. systems - electrical equipment ; data for short - circuit current calculations

    三相交流系統短路電流計算.電氣設備.短路電流計算數
  12. Electrical installations of ships and mobile and fixed offshore units - procedures for calculating short - circuit currents in three - phase a. c

    船舶和移動式及固定式近海裝置的電氣設施.三相交流短路電流計算程序
  13. Short - circuit currents in three - phase a. c. systems - part 1 : factors for the calculation of short - circuit currents according to iec 60909 - 0

    三相交流電系統中的短路電流.第1部分:根據iec 60909 - 0的短路電流計算系數
  14. Short - circuit current calculation in three - phase a. c. systems. data for electrical equipment for short - circuit current calculations in accordance with bs 7639

    三相交流系統短路電流計算.依據bs 7639短路電流計算用電氣設備數據
  15. The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load

    試驗結果表明，該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。
  16. Short - circuit currents in three - phase a. c. systems - part 4 : examples for the calculation of short - circuit currents

    三相交流系統的短路電流.第4部分:短路電流的計算實例
  17. Three phase short circuit characteristic

    三相短路特性曲線
  18. In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system

    在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
  19. Short - circuit currents in three - phase a. c. systems - part 3 : currents during two separate simultaneous line - to - earth short - circuits and partial short - circuit currents flowing through earth

    三相交流系統中的短路電流.第3部分:兩個獨立的同時線路接地短路部分短路電流流入大地情況下的電流
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