transient current 中文意思是什麼

transient current 解釋
短暫電流
  • transient : adj 短暫的,一時的;過渡的;匆匆而過的;易逝的;虛幻的,無常的 (opp lasting permanent); 【物理...
  • 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。
  1. Focus on the reality that transient current testing overly relies on the test equipments, professor min yinghua from institute of computing technology of china sicence academy proposed at - speed current testing method ( idda testing ) grounded on transient current testing

    針對瞬態電流測試過于依賴測試設備的現狀,中科院閔應驊教授提出了基於瞬態電流的全速電流測試方法( iddatesting ) 。
  2. For the severe limitation that the selectivity of transient current protection will lose when the fault with small resistance or without resistance takes place at the end of transmission line, the basic reason for the selectivity loss of transient current protection was investigated

    摘要針對保護出口處發生金屬性或小電阻短路故障時,暫態電流保護完全失去選擇性的嚴重缺陷,利用時域分析方法,進行了詳細的故障暫態分析和模擬研究。
  3. Multifunction of testing voltage value, current value, rf value and transient current strength

    多用途測試電壓值,電流值,射頻值及瞬變電流強度等。
  4. The thesis introduces the definition of transient current and it ' s energy. the tranvelling wave can be affected by power system equipment, it ' s effect is analysed with energy change of transient current at high frequency band

    討論分析了電力設備對行波的影響。提出了通過暫態電流高頻分量的能量及其能量比值變化情況定量分析變電站設備對暫態電流高頻分量的影響程度的方法。
  5. In the experiment of testing instantaneous characteristics for circuit breaker, the transient current exists in the experimental circuit because of the closing making angle, which has serious influence on the testing precision

    斷路器進行瞬動特性試驗時,由於合閘相角的原因,試驗電路中會產生暫態電流,暫態電流的存在對試驗精度產生嚴重的影響。
  6. The current based test method can be divided into two categories, the one is quiescent current test ( iddq testing ) and the other is transient current test ( iddt testing )

    為了降低測試成本並且提高集成電路的可靠性,電流測試應運而生。電流測試技術包括穩態電流測試( iddqtesting ) 、瞬態電流測試( iddttesting )兩種方法。
  7. Quiescent current test method has been widely applied in ic industries already and transient current testing is still at the stage of studying due to its harsh requirement for apparatus and other technical problems

    穩態電流測試目前已經實用化,而瞬態電流測試由於其對測試設備要求苛刻和其他一些技術問題仍處于研究階段。
  8. On the basis of the analysis on spwm modulation mode and transient current control theory, a new method of voltage balance on the capacitors in dc side is proposed, and computer simulation is carried out in matlab

    在分析了spwm調制方式和瞬態電流控制原理的基礎上,提出了一種直流側兩電容上電壓平衡的方法,並在matlab環境下進行了計算機模擬。
  9. Based on the analysis and research on fan algorithm, an iddt test pattern generation algorithm for stuck - open faults is present. in the case of ignoring hazards, for the stuck - open faults in cmos circuits, the feasibility of transient current test generation based on fan algorithm is discussed

    本文採用啟發式搜索的方法,基於對fan演算法的分析,在不考慮冒險的情況下對于cmos電路中的開路故障,探討了利用fan演算法進行瞬態電流測試生成的可能性。
  10. By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately

    論文深入地分析了高壓線路故障暫態電流行波的波折、反射過程以及折、反射系數的特點,提出了新的單端行波故障測距方法,它不僅能夠有效地識別出測距所用的反射波,而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響,在近區仍可以準確地進行測距;同時模擬阻波器的特徵,設計了低通數字濾波器,對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析,並利用本文提出的單端行波故障測距方法進行故障定位,結論是所提出的測距方法在實際應用中仍是有效的。
  11. By using high - speed data acquisitioning unit designed specially to capture travelling waves of transient current, using global positioning system ( gps ) to supply high precise time tagging for both ends, using wavelet transform theories to identify the head of the travelling waves, the fault locator can realize high precise double - ended travelling waves location

    該測距裝置採用專門設計的高速采樣單元捕獲暫態電流行波信號,用全球定位系統( gps )為線路兩端提供精度高達1 s的統一時標,用小波變換理論識別暫態電流行波波頭信息,從而可以實現高精度的雙端行波法測距( 150m ) 。
  12. The reliability of hv / ehv transmission line protection is important to the security of the power system. this thesis is devoted in the study of the transient current protection for hv / ehv transmission line

    探索新的保護原理和方法,以提高輸電線路保護的性能,是繼電保護研究領域中的一個重要課題。
  13. The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection

    應用功率譜估計方法討論了故障高頻暫態噪聲信號在頻率軸上的分佈情況,利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻暫態信號的衰減特性。論文的後半部分(第五,六,七章)著重分析了現有基於故障電流的暫態保護原理和判據存在的問題,提出了新的實現方案,並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據,可以準確區分故障線路和非故障線路,實現超高速暫態電流保護,計算更為簡單方便,計算速度更快。
  14. In order to eliminate the transient current and ensure the test precision, this paper introduces the principle and the method of phase selection of the ac based on fft ( fast fourier transform algorithm )

    為了消除暫態電流,本文闡述了一種基於快速傅立葉變換( fft )的交流選相合閘技術的原理以及實現方法,保證了檢測精度。
  15. Multifunction of testing voltage value, current value, rf value and transient current strength. it also acts as soldering station with option soldering pen

    多用途測試電壓值,電流值,射頻值及瞬變電流強度等外,並設置焊筆介面,可選購焊筆作為焊臺使用。
  16. Transient current measurement for power system by using improved ac dc current transformer

    新型交直流比較儀在暫態電流測量中的應用
  17. Application of non - fail - safe transient current in distribution network failure selection

    非故障相暫態電流在配電網故障選線中的應用
  18. 5. the installation can limit the inrush transient current, which is caused by capacitor banks be put into operation, below 20 times of rated current

    5 .裝置應能將電容器組投入運行瞬間產生的涌流限制在電容器組額定電流的20倍以下。
  19. Based on the simulation research of the typical radar analog circuit, it is shown that the main reason of the emerging surge signal is the high transient current conducted in the transistor

    對雷達產生浪涌信號的一個典型電路進行模擬,得出模擬電路產生浪涌的一個重要原因是晶體管的瞬間導通電流過大。
  20. The transient analysis and simulation studies in time - domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non - fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection

    研究結果表明,線路出口故障時暫態電流保護完全失去選擇性的根本原因是,在給定的采樣頻率的限制下,難以捕捉到過渡過程中極其短暫的母線分佈電容中的暫態電流,從而故障線路與非故障線路暫態電流波形的奇異性相近,根據故障線路和非故障線路的暫態保護判據計算結果不能正確識別故障線路。
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