current-zero 中文意思是什麼

current-zero 解釋
零值電流
  • 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。
  • zero : n （pl zeros zeroes）1 【數學】零；零號。2 零位；零點，起點；（溫度表的）零度，冰點；座標原點；無...
  1. The un regular budget has had zero nominal growth for eight years, followed by a very slight increase for the current biennium ? which nevertheless represents a reduction in real terms from the prior period

    聯合國的經常預算8年來的名義增長率為零，本兩年期也只有微量增長，且實際經費仍低於上一兩年期。
  2. A novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of power electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase - shifted zero - voltage switching pwm dc / dc full - bridge converter

    本文在對近年來電力電子學科的發展高度綜述和對現代高頻軟開關功率變換技術理論基礎深入研究的基礎上，對傳統的移相控制zvspwmdc dc全橋變換器的工作原理、電路特性、存在的缺點進行了分析，在此基礎上提出了一種改進型的移相控制zvzcspwmdc dc全橋變換器。
  3. The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it

    為了進一步抵消剩餘磁通，提高互感器的精度，提出了一種並聯電容線圈補償零磁通的方法，並進行了理論推導，設計了基於該方法的100匝電流互感器，通過校驗證明它可以改善零磁通電流互感器的比差和角差特性，提高互感器的精度，將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝，提高了測量微小電流的能力。
  4. In general, a precise resistor is in series with one of the resistors in wheatstone bridge to compensate the zero offset, and the other one is in parallel with another arm of the wheatstone bridge to compensate thermal zero drift. based on this principle, in this paper, a compensation method based on virtual instrument technology has been put forward. actuated by current source, a good calculation method of compensation resistors and their position in the bridge is deduced

    本文基於串並聯電阻補償法的原理，提出了一種基於虛擬儀器的誤差補償方案，推導了在恆流源供電下可以精確的計算出補償電阻大小和補償位置的演算法，並且在虛擬儀器軟體平臺labview上完成了數據採集、處理、顯示等軟體的設計，經過實驗的驗證，對傳感器的零點溫度漂移補償取得較好的效果，而對靈敏度溫度漂移的工藝補償亦有一定的效果。
  5. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  6. Yueqing zhengda soft magnetic alloy co., ltd is a high - tech company that mainly produces ultra - crystallite ( nanometer cryst - allite ) material, ultra - crystallite magnetic core, current transformer, zero sequence current transformer, toroidal transformer

    樂清市正大軟磁合金有限公司，是一家專業生產超微晶（納米晶）帶材，超微晶磁芯，電流互感器，零序互感器，環型電感的高科技、軟磁公司。
  7. Analyzing the variation of the nozzle arc parameters at current zero, in addition, analyzing the breaking property of the studied circuit breaker on the basis of the theory

    分析了電流過零時噴口內電弧參數變化的原因，此外，從理論上對所研究的斷路器的開斷性能進行了分析。
  8. Voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed

    採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源
  9. Abstract : voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed

    文摘:採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源
  10. ( 4 ) the experiment of asymmetrical half bridge converter design and the result of it base of the above analysis, the dc / dc converter is designed, it is proved that asymmetrical half bridge can realize zero voltage switching when it satisfies the condition of load current and deadtime by the experiment

    （ 4 ）不對稱半橋的實驗電路設計及實驗結果基於前面的分析，設計了一個不對稱半橋dc dc變換器的實驗電路，進行了實驗研究，實驗結果證實了在滿足死區和負載電流兩個條件時，不對稱半橋可以實現零電壓開關。
  11. Conventional hard switching technology has several flaws below : on and off loss, inductive off, capacitive on and diode recover problems. comparing with it, the loss of on and off decreases markedly, as the switches are on and off in zero voltage or zero current cases. and also the size of converter becomes smaller because of the higher of switching frequency

    傳統硬開關技術由於存在開通關斷損耗大、感性關斷、容性開通、二極體反向恢復等問題，與之相比，軟開關技術在零電壓或零電流條件下導通，開關損耗明顯降低，加上開關頻率的提高使得變換器的體積得以減小，這也是軟開關技術受到青睞的原因。
  12. If a sinusoidal current is sent through a moving coil galvanometer, the meter reads zero.

    如果將一正弦電流通入動圈式電流計，那麼這電流計的讀數為零。
  13. A nonlinear ship steering controller is designed successfully. even considered the noises caused by wind, wave and current, the matlab simulation tracking error is almost zero. simulation results show that the presented algorithm is effective and robust

    在存在舵機非線性和海浪干擾的情況下，分別跟蹤階躍響應及正弦曲線，航向跟蹤效果很好，幾乎無偏差跟蹤，且打舵小，具有較強的魯棒性。
  14. The device can protect start - up status and running status of asynchronous motors by differential protection, over current protection, negative - sequence current protection, zero - sequence current protection, inverse time current protection, under - voltage protection and so on, can measure every kind of electricity, and can process the function of telecontrol, telemetering and telecommunication

    其依靠電流差動、速斷、負序過流、反時限、零序過流和低電壓等保護方法實現了片電動機的運行、啟動和自啟動過程進行保護，並實現各種電量的計量，同時具有遙控、遙測、遙信的功能。
  15. Technical specification for zero sequence current direction protection equipment

    零序電流方向保護裝置.技術條件
  16. Influence of dc - rail zero - voltage notch on the output of the inverter is investigated, and an important conclusion is obtained that the direction of output current of the inverter is not effected by the voltage deviation produced by dc - rail zero - voltage notch, on the basis of which, a new simple correction approach is put forward. experiment results show that the proposed correction method is effective

    探索了直流母線零電壓凹槽對逆變器輸出特性的影響，得出了母線零電壓凹槽形成的輸出電壓偏差與逆變器輸出電流方向無關這一重要結論，在此基礎上，提出了一種簡便的校正新方法，通過試驗驗證了該校正方法的有效性。
  17. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷，更將故障定位在故障線路最小故障區段。
  18. Associated tightly with the stokes measured in small capacity current breaking and short - circuit breaking test duty t100a ( short arc, middle arc and long arc ), the electric field distributions 3 ms after current zero have been calculated. the cold gas flow field corresponding with small capacity current breaking is calculated. based on the results derived from one - dimensioned gas flow field simulation, the two - dimensioned gas flow fields corresponding with short - circuit breaking test duty t100a ( short arc and middle arc ) are calculated as well

    本文採用與試驗緊密結合的方法，在給定機械行程曲線的基礎上對三峽工程中採用的550kvsf6斷路器在開斷小電容電流、短路開斷方式5短、中、長燃弧電流過零后3ms內滅弧室二維靜電場分佈進行了分析計算；對該斷路器開斷小電容電流時近似的冷態場進行了二維模擬分析計算；在對短路開斷方式5短、中、長燃弧一維氣流場進行分析計算的基礎上進一步採用一維氣流場和二維氣流場相結合的方法，對該斷路器開斷方式5短燃弧和中燃弧對應的二維熱態場進行了分析計算。
  19. Is the stator three phase line voltage the same ? and is it current zero

    定子三相電壓是否相等？其電流是否為零？
  20. Numerical computation of the dynamic variation of the arc have been completed in the process of before current zero, after current zero and approaching zero to simulate the arc dynamic variation during the interruption process for the high voltage sf6 circuit breaker

    對電流零前、過零期間以及零后的電弧動態變化進行數值求解，實現了高壓sf _ 6斷路器開斷過程電弧動態變化的模擬模擬。
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