inrush current 中文意思是什麼

inrush current 解釋
沖擊電流，啟動電流
  • inrush : n. 纖入，闖入；流入。 an inrush of fresh air 新鮮空氣的流入。 the spring inrush of tourists 旅遊者隨春天大批涌來。
  • 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. Isolated boost converter inrush current occur during flyback work

    起動電流過沖發生在flyback工作階段。
  2. 4. maximum inrush current

    4 .最大瞬間電流
  3. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前，牽引變壓器通常採用差動保護作為主保護，但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障，如故障電流與變壓器處于勵磁涌流、過勵磁， ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分，可能造成保護誤動或拒動，從而危及整個鐵道電氣化系統的安全運行。
  4. Thermistors - directly heated positive step - function temperature coefficient - blank detail specification - inrush current application - assessment level ez

    熱敏電阻.直接熱無源分級功能溫度系數.空白詳細規范.涌電流應用. ez評定級
  5. Thermistors directly heated positive step - function temperature coefficient part 1 - 3 : blank detail specification inrush current application assessment level ez

    直熱式階躍型正溫度系數熱敏電阻器第1 - 3部分:浪涌電流用空白詳細規范評定水平ez
  6. Thermistors - directly heated positive step - function temperature coefficient - part 1 - 3 : blank detail specification : inrush current application - assessment level ez

    熱敏電阻器.直熱式突變型正溫度系數.第1 - 3部分:空白詳細規范:起動電流應用.評估級別ez
  7. How to discriminate between internal fault and magnetizing inrush current is the difficulty of transformer protection when apply differential relay

    變壓器主保護選擇差動在原理上存在不足，帶來的問題就是如何準確鑒別勵磁涌流與內部故障，這也是目前變壓器保護的難點。
  8. Thermistors - directly heated positive step - function temperature coefficient - part 1 - 3 : blank detail specification ; inrush current application ; assessment level ez iec 60738 - 1 - 3 : 1998 ; german version en 60738 - 1 - 3 : 1999

    熱敏電阻.直熱式正階躍函數溫度系數.第1 - 3部分:空白
  9. According to the characteristics of inrush current a series of new approaches of discrimination inrush current by utilizing fuzzy set is presented. and then the algorithm of transformer protection is achieved based on 80c196 system

    通過研究勵磁涌流的特徵，提出了利用模糊識別原理來識別變壓器勵磁涌流，並基於80c196單片機系統編制了保護軟體。
  10. The paper analyses the principles of distinguishing internal faults current from inrush current and their defects at the present time on the basis of investigating widely the existing papers on identification of inrush current

    本文在廣泛閱讀國內外現有的關于變壓器勵磁涌流識別的文獻的基礎上，分析了目前區分變壓器勵磁涌流和故障電流的多種原理及存在的問題。
  11. In order to meet needs of reliability and speediness of power transformer protection, and to have protection blocking reliably in the presence of magnetizing inrush current, the wavelet transform is applied to the discrimination between inrush current and fault current

    本文把小波變換應用於勵磁涌流的鑒別，詳細探討了用小波變換來區分勵磁涌流和故障電流的具體方法，提出了兩種比較適用於工程實際的方法。
  12. Electronic soft starter is a kind of novel motor control device which can implement the soft - start, soft - stop and energy - saving of the asynchronous motor. compare in the traditional motor starter, it has outstanding advantages such as stepless regulation of the motor start, avoid the inrush of the torque and the current, and reliable protections, convenient operation and starting repetitively. so the paper aim at electronic soft starter, asynchronous soft starter of electrical machinery electron as research object, study it ' s high - performance soft starting technology - torque control soft - start, develop its realization circuit

    異步電動機電子軟起動器是一種集電機軟起動、軟停機、輕載節能和多種保護功能於一體的新穎電機控制裝置，相比于傳統的起動器，它突出的優點體現在能夠連續無級的調節電機起動、沖擊轉矩和沖擊電流小、控制簡便、起動重復性好以及體積小等方面，本文以異步電機電子軟起動器為研究對象，研究高性能的電機軟起動技術- - -轉矩起動方式，並研製其實現電路。
  13. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  14. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  15. The driver has the quiescent current under 1 a and also has soft - start circuitry to limit inrush current flow at power up. the chip can be operated normally in the temperature range of - 40 to 85 according to the simulation results. the brightness of the white leds can be controlled by using a dc voltage or a pwm signal applied to the pin with a few external components added

    系統採用0 . 5 mcmos工藝;輸入電壓范圍為2 . 7v到5 . 5v ;在關閉狀態下消耗電流小於1 a ;具有軟啟動功能，可減小啟動過程中的浪涌電流;具有短路及過熱保護功能，工作溫度范圍為- 40至85 ; led亮度控制可以通過外加dc或pwm電壓信號和很少的外部元件實現。
  16. The chip is mainly applied to the portable electronic products with the following features : 2. 7v to 5. 5v input voltage range ; the 1mhz fixed frequency ; - 40 to + 85 operating temperature ; two digital inputs control on / off and select amongst three levels of brightness ; thermal shutdown and under voltage shutdown protection, low 0. 1 a shutdown current ; soft - start limits inrush current

    該晶元主要應用於便攜式電子產品，其輸入電壓范圍為2 . 7 5 . 5v ，工作頻率為固定的1mhz ，可大幅度降低輸入紋波和emi輻射，工作溫度范圍為- 40 + 85 ，可使用外部使能控制信號調節led亮度及控制晶元關斷與否，具有過溫保護和輸入欠壓關斷保護功能，完全關斷模式下關斷電流可低至0 . 1 a ，具有軟啟動功能以限制啟動時的浪涌電流。
  17. The research work is involved in the main circuits structure and the protection of the valves, the determination for the important parameters of the components in the main circuits, the triggering system of the valves, the technology of hv - tsc valve ' s turn - on without inrush current presentation, and the function design for the controller of the thyristor valves. a real hv - tsc valve controller corresponding to the research work has been developed. field tests has shown that the hv - tsc valve controller is able to provide effectively and reliably control and protection for the hv - tsc valves

    本論文對高壓tsc裝置所用的可控硅開關的主電路電氣結構、主電路的保護電路、主電路中的重要元件參數的選擇、可控硅開關的觸發系統構成、無沖擊涌流投入電容器技術、可控硅開關控制器功能設計及其功能實現進行了深入的研究和探討，並對可控硅開關控制器進行了實際的設計和試制，現場測試證明其對可控硅開關的控制是可靠、有效的。
  18. These two methods can alleviate the inrush current. this paper research voltage and current close - loop control flyback converter and isolated boost converter with peak current mode pwm controller. the start process of flyback converter is divided into three stages : inrush current, current regulating and voltage regulating stages

    分析了兩個起動過程: 1 ）電壓電流雙閉環控制flyback變換器的起動過程，可分為電流過沖階段，電流調節器調節階段和電壓調節器調節階段三個階段。
  19. The extending techniques such as vector transform ， excitation inrush current, ta saturation and so on are analyzed, which resolves the question that the traditional optical differential protection can not satisfy the request of line - transformer unit

    同時對光纖差動保護運用於線路變壓器組時涉及的矢量變換、勵磁涌流、 ta飽和等延伸技術進行了分析，解決了傳統的線路光纖差動保護不能滿足線路變壓器組保護的要求。
  20. Magnetizing inrush current has obvious singularity, and wavelet transform has multi - scale and good time - frequency local characteristic, that it is particularly well adapted to extract the characteristic of signal ' s edge and peak value, and can check up the singularity well

    變壓器勵磁涌流具有明顯的奇異性，小波變換具有多尺度分析和良好時頻域局部化特性，適合提取信號邊緣和峰值突變的特徵，能夠很好的檢測信號奇異性。
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