相對地電壓 的英文怎麼說

中文拼音 [xiāngduìdediànyā]
相對地電壓 英文
phase-to-ground voltage
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 壓 : 壓構詞成分。
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  • 電壓 : voltage; electric tension; electric voltage
  1. Power frequency withstand voltage between phases, to earth insolating fracture : 95kv 110kv

    工頻耐受電壓相間對地隔離斷口： 95kv 110kv
  2. Lightning impulse withstand voltage between phases, to earth insolating fracture : 185kv 215kv

    雷電沖擊耐受電壓相間對地隔離斷口： 185kv 215kv
  3. Suction gas pressure goes up as the compressor run at the lower speed in the lower burthen, and this is beneficial to lower systems energy - consume. when the system is controlled by wvf, the discharge change of the evaporator is not linear ; the electronic expansion valve is adopted to regulate the system superheat degree, and the controlled object is parameter time varying, accordingly, the time varying controller should be adopted

    在負荷較小時，壓縮機採用低速運轉，吸氣壓力升高，這對系統降低能耗是有利的；變頻控制時，蒸發器製冷劑流量的變化並非線性；系統中採用電子膨脹閥進行過熱度控制，被控對象具有參數時變的特性，相應地宜採用變結構的控制器。
  4. Only when it takes humidity ratio h / ? as independent variable instead of absolute humidity h in researching and calculating the influence degree of the humidity on the discharge voltage, the emendation coefficients of relative air density and humidity can be independence, and can reflect the influence degree of atmospheric parameters on outer insulation discharge voltage actually

    當以比濕h代替絕對濕度h為自變量研究和計算濕度對放電電壓的影響程度時，相對空氣密度校正系數和濕度校正系數才能相互獨立，才能真實地反映大氣參數對電氣設備外絕緣放電電壓的影響程度。
  5. The single phase electric motor, which is suitable for wide range of voltage, permits the efficiently cutting of slender fur strips, thicker skins and skins wide in width. the using conditions can be madebetter when the machine is used in the area of unstable voltage

    ：配用單相大功率電機，對于細毛條較厚皮板和大幅麵皮張都可以有效切割適用電壓范圍寬：對于電壓不穩定地區，可以改善使用條件
  6. To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators, a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed, and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings. the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed

    針對目前大型水輪發電機定子繞組單相接地保護靈敏度偏低的問題，通過分析單相接地故障后機端和中性點零序電壓的變化特點，提出了一種基於機端和中性點三次諧波電壓故障分量和兩種基於機端和中性點零序電壓故障分量的高靈敏度、高可靠性保護方案，並實現定子繞組的100 %保護。
  7. An automatic fault location method is proposed based on ftu after the circuit analysis of single line - to - ground fault in distribution networks

    通過對配電網發生單相接地故障后饋線的電壓、電流變化規律的分析，論文提出了基於饋線現場監控終端ftu的故障點智能定位方法。
  8. Firstly the paper summarized the methods of passing over of neutral section and its application status quo in the domestic and oversea. as the research object of the paper, the reason of over - voltage caused by the method of ground transfer by vacuum breaker is analyzed though simulation and experiment. and based on the analyze, a method of automatic passing over of neutral section using thyristor vale to controlling the phase of electric power is presents

    本文首先綜述了國內外自動過電分相的方式及應用研究現狀，並以地面開關轉換方式為本文的研究對象，通過模擬和實驗，分析了這種方式產生過電壓的機理，以此為基礎，提出了以晶閘管閥控制電網電源投入時刻的自動過分相方案。
  9. Researching and analyzing on the test results of the influence of atmospheric parameters on outer insulation discharge voltage and its various emendation methods, it can be concluded that : with the change of relative air density, its humidity ratio h / ? will also change even though the absolute vapor mass ( absolute humidity h ) of the air is constant. consequently, the influence degree of the humidity on the discharge voltage should change, too

    本文通過對以往的大氣參數對外絕緣放電電壓影響的試驗成果及各種校正方法的研究分析認為：隨著相對空氣密度的變化，即使空氣中所含水氣的絕對質量（絕對濕度h ）保持恆定，其比濕h也會變化，必然地，濕度對放電電壓的影響程度也會變化。
  10. In this paper, they are set forth at first that the kinds of computer - simulation of electronic devices, the development and the requirements of mosfet ' s model and the way of gain the models " parameters, the dc models have been bui it in chapter 2 and the models of big signals have been deduced in chapter 3, they are different from the equivalent circuit models in the traditional software pspice that they come from the numer i ca i - s i mu i at i on wh i ch is based on the essence equat i on, so the precision of simulation is enhanced ? mosfet ' s small signal models of low frequency, intermediate frequency and high frequency have been built in chapter 4 and chapter 5, although the equivalent circuit models in pspice are used for reference to bui id them, they have their own characteristics which are analyzed at a i i kinds of situations, so that the simulation software for mosfet can be written according them and it i s a i so benef i c i a i for us to catch the gen i us character i st i cs of mosfet and to d esign all kinds of applicable devices the correctness of the models is simply proved in chapter 6

    本文首先介紹了電子器件計算機模擬的分類、 mosfet的建模發展動態、對器件模型的要求以及模型參數的提取方法。在第二章中建立了mos晶體管在直流端電壓條件下的工作模型；第三章推導了mosfet的大信號模型，這兩類模型不同於傳統模擬軟體例如pspice中的等效電路模型，而是從模型方程出發，採用數值模擬的方法，提高了模擬的精度。第四章和第五章分別建立了mos晶體管低頻、中頻、高頻的小信號模型，雖然借鑒了pspice模擬軟體中用等效電路模型的方法，但是本文分別討論了準靜態和非準靜態時器件的本徵部分以及包含非本徵部分工作于低頻、中頻和高頻條件時的模型，可以根據這些模型編寫相應的模擬軟體，這樣在做器件的模擬分析與器件設計的時候，就可以利用模擬軟體逐步深入地分析器件在不同的條件下和器件的不同部分在工作時的各種小信號特性，有利於抓住器件工作的本質特性，設計出符合要求的各類通用和特殊器件。
  11. The calculation of the selection of the neutral - point earthing - transformer of the generator shows that the selection of its parameters should be matched with one - point earthing protection of the stator of its generator

    對發電機中性點接地變壓器的選型計算表明，其參數選擇必須與發電機定子一點接地保護相配合。
  12. Abstract : a new approach, gate - capacitance - shift ( gcs ) approach, is described for compact modeling. this approach is piecewise for various physical effects and comprises the gate - bias - dependent nature of corrections in the nanoscale regime. additionally, an approximate - analytical solution to the quantum mechanical ( qm ) effects in polysilicon ( poly ) - gates is obtained based on the density gradient model. it is then combined with the gcs approach to develop a compact model for these effects. the model results tally well with numerical simulation. both the model results and simulation results indicate that the qm effects in poly - gates of nanoscale mosfets are non - negligible and have an opposite influence on the device characteristics as the poly - depletion ( pd ) effects do

    文摘:提出了一種新的建立集約模型的方法，即柵電容修正法.此方法考慮了新型效應對柵電壓的依賴關系，且可以對各種效應相對獨立地建模並分別嵌入模型中.另外，利用該方法和密度梯度模型建立了一個多晶區內量子效應的集約模型.該模型與數值模擬結果吻合.模型結果和模擬結果均表明，多晶區內的量子效應不可忽略，且它對器件特性的影響與多晶耗盡效應相反
  13. Using the modified method, 6 kinds of tl topologies of single - switch converter are obtained. the deep research reveals that these tl topologies can have less value of the inductor by using interleaving modulation strategy compared with conventional modulation strategy on the condition that the current ripple of the inductor are the same. some drawbacks such as high voltage stress, difficulty of realizing soft - switching, and magnetic aberration were presented in the conventional push - pull converter

    對基本方法進行改進，提出了適合6種單管直流變換器的三電平拓撲變換方法，成功地得到了其三電平拓撲，開關管的電壓應力降為原來的一半；經過對這些三電平拓撲控制策略的深入研究，詳細論述了交錯開關方式可以最大幅度地減小電感的電流脈動，從而可以在電流脈動要求相同的情況下減小電感的設計值。
  14. By applying the method composed of theory analysis, simulation and test verification, some researches have been done on unload characteristic, torque - current characteristic, revolving speed - voltage characteristic and mechanism characteristic of the motor system. meanwhile, various control modes of the system are analyzed. all these researches provide some references for the motor ’ s application

    採用理論分析、模擬模擬、試驗驗證相結合的方法，分別研究了雙凸極電機的空載特性、轉矩電流特性、轉速電壓特性、機械特性，並對各種控制方式進行了分析、比較，為在實踐中更好地應用雙凸極電機提供了一定的依據。
  15. However, some unique geographical characters, such as fire grounding, bamboo grounding and treetop grounding, can cause single phase high - impedance grounding fault frequently. since the voltage drops down very little and the voltage among three phases keeps symmetric, this fault increases the difficulty of the check on this fault

    然而，由火焰接地、毛竹接地或樹梢接地等原因引起的單相高阻接地故障，由於電壓降小、三相線間電壓依然幾乎對稱，從而增加了高阻接地檢測的難度。
  16. To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed

    利用集成a / d 、 d / a轉換器的新型晶元aduc824 ，實現了電流（電壓）采樣?數據處理?電流控制的閉環控制結構；地電位的抬升解決了a / d轉換器對負高壓迴路電流采樣時的輸入范圍匹配問題；控制信號反相的同時進行幅度壓縮，使得輸出調整電壓的解析度提高；根據常規的比例?積分?微分（ pid ）調節模型，針對陀螺系統的特性，給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大步長積分?小步長積分、分層次比例?積分演算法；不同條件下系統穩流性能的對比、分析在論文最後給出，並據此找出了決定該系統穩流精度的關鍵因素，提出了系統的改進意見。
  17. In the eme model, the electron energy balance equation is taken into account and the transport coefficients are assumed to be the functions of the electron mean energy. in this paper, a software is programmed to simulate the discharge process of plasma display cell of coplanar - electrode type, the matrix - electrode type and the novel shadow - mask pdp according to the gas discharge mechanism and fluid simulation theory. the simulation results show that both lfa model and eme model can be used to investigate the discharge characteristics of the cell, but the eme model is preferred for its better coincidence with theories and experiments

    在本文中，分別使用本地場近似的lfa （ localfieldapproximation ）流體模型和假設碰撞反應系數、傳輸系數和電子的平均能量相關的eme （ electronmeanenergy ）流體模型對pdp放電過程進行模擬，比較分析模擬結果，得出eme模型和lfa模型對放電的繁流、起輝放電、熄滅等過程的描述的基本趨向是大致相同的，而從模擬工作電壓與實際電壓的接近程度和放電效率角度比較， eme模型的模擬結果跟理論和實驗結果更為相符。
  18. It compares and analyses the equipment test voltage emendated to standard atmosphere conditions with the equipment nominal withstanding voltage. and then it concluded that : the emendation value educed by " humidity ratio " integrated emendation method is basically equal or close to the equipment nominal withstanding voltage ; but the values by two traditional emendation methods are mostly higher. it also proves that, " humidity ratio " integrated emendation method is more perfect than any other methods, and it can reflect the influence degree of atmospheric parameters on electrical equipment outer insulation discharge voltage actually

    文中選擇「比濕」綜合校正法和兩種傳統校正法，分別對西高所為羊八井、拉薩、羊湖110kv變電所設備所做的人工氣候室模擬試驗數據及雲南中試所做的zs - 110工頻放電電壓試驗數據進行校正計算，將試驗電壓的校正值與試驗設備的標稱耐受電壓水平進行比較分析；認為： 「比濕」綜合校正法的校正值與設備耐受電壓水平基本相等或接近，而兩傳統校正法的校正值大多高於設備耐受電壓水平；進一步證明， 「比濕」綜合校正法是目前諸多校正法中較為完善的，能真實地反映大氣參數對電氣設備外絕緣放電電壓的影響程度的校正法，在高海拔電力工程設計中應推廣應用。
  19. Lighting impulse resisting voltage relatively : 75

    雷電沖擊耐壓相對地kv : 75
  20. Comparing with voltage - domain d - a converter and charge - domain d - a converter, current - steering d - a converter has its high - speed superiority, which is only influenced by the speed of current switch. because the structure is based on current replication while not on current division, it can overcome the defects of current - domain d - a converter

    電流舵型數模轉換器只受到電流開關速度的影響，相對于電壓型和電荷型結構具有高速的優勢，並且這種結構是基於電流復制而非電流劃分，可以很好地克服電流型結構的缺陷。
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