line capacitance 中文意思是什麼
line capacitance
解釋
線路電容- line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
- capacitance : n. 【電學】電容；電容器。
-
The insulating materials cause the capacitance and therefore the reactance of the line becomes very large.
絕緣材料也產生電容，所以線路的電抗變得很大。 -
The alteration of city and country power system will bring the power supply ability to a new level. especially, the widely use of power cable cause the capacitance to earth doubled, and a cutoff of some lateral line has comparatively larger effect
隨之而來的是電網對地電容的增大，特別是城網改造中電力電纜的廣泛應用，使電網的對地電容成倍增加，切除某一支路對整個電網的對地電容影響比較大。 -
Combined with researches on propagation characteristics, the micro - current sensor for on - line pd monitoring is developed and the effects of coil number, stray capacitance and loading resistance on pass - band and sensitivity are also studied
同時，結合傳播特性，研究了局部放電在線監測寬帶微電流傳感器，並就線圈匝數、雜散電容和負載電阻等對傳感器通頻帶、靈敏度等性能參數的影響進行了分析。 -
The main job of this research is : ( 1 ) analyze the operation situation of power system during faults ; pay attention to the traveling wave on the three - phase transmission line ; study the equation of voltage on three - phase transmission line with impedance capacitance coupling between phases ; contact the voltage on any point with the fault voltage, study the singularity of the voltage signal in fault point, and make it to be the base of the new fault detection method ; ( 2 ) apply the singularity detection theory based on wavelet analysis to the power system faults detection, give a complementary criterion to current fault detection criterion, study how to select the basic wavelet, how to filter noise, how to detect the singular point or fault point, and finally give a total solution. the simulations prove it to be a quick, correct and effective fault detection method
本文的主要工作有： （ 1 ）分析電力系統在發生故障時的運行狀態，尤其對三相傳輸線上的故障行波進行了分析和研究，推導了考慮相間耦合的三相傳輸線電壓方程，並將傳輸線上任一點的電壓與故障點電壓建立起聯系，得出了傳輸線上電壓信號在故障點處的奇異性，並以此作為構造新的故障檢測演算法的理論基礎； （ 2 ）將基於小波變換的信號奇異性檢測理論運用於電力系統故障檢測中，針對目前相關研究的不足，提出了電力系統故障檢測判據的補充判據，通過對基本小波的選擇、除噪措施、信號奇異點也即故障點的檢測方法所作的分析，給出了一個可行的解決方案；模擬研究表明：這是一個快速、準確、有效的故障檢測演算法。 -
Many advantages of the controller are proven by simulation, such as modulating power flow of transmission line and voltage of node, maintaining the voltage stability of capacitance ' s dc side, stabilizing system ' s power - angle character and good dynamic characteristic
通過簡單系統的暫態模擬表明，該控制器在調節線路潮流和節點電壓、維持直流側電容電壓穩定以及系統的功角穩定方面有良好的效果，而且具有良好的動態品質和調節效果。 -
The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low
傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路，其輸入電流波形呈脈沖狀，交流網側功率因數很低。 -
Key components in the insulation line : high precision extrusion crosshead with automatic centring produced by swiss unitek, o. d. meter, centrifugal tester, h. f. spark tester, capacitance tester provided by uk beta co., frequency converter, temperature controller, plc and bearing from simens in germany and mitsubishi injapan
生產線選用的主要關鍵器件：擠出機頭採用瑞士unitek公司的高精度自動定心機頭；外徑測試、偏心測定、高頻火花、電容測試等均採用英國beta公司的高精度儀器；而且擠出機的變頻器、溫控器、 plc和軸承等均採用德國西門子公司和日本三菱公司的產品。 -
Should there capacitance of the provisional filing documents in a timely manner into the flash memory chip can guarantee archived documents " permanent retention " flash memory chips into the memory of ( name of the file extension sav document ) only through on - line computer in the mobile disk operating the computer can be deleted or backup, no longer subject to the electric capacitance effects
因此要將電容內的臨時存檔文件及時寫入閃存晶元才能保證存檔文件的"永久性保留" ，寫入閃存晶元的記憶文件（文件后綴名稱為sav的文件） ，只有通過電腦聯機在移動磁盤下操作才可以在電腦上刪除或備份，不再受電容電能的影響。 -
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。 -
Capacitance calculation for transmission line filled with piecewise homogeneous dielectric using boundary element method
用邊界元法分析非均勻介質中的傳輸線 -
It details the ic design process and vlsi circuits, including gate arrays, programmable logic devices and arrays, parasitic capacitance, and transmission line delays
它詳細規定了集成電路設計過程和超大規模集成電路電路，包括門陣列，可編程邏輯器件和陣列，寄生電容，及輸電線路的延誤。 -
A few kinds of signal separate measures, double caner frequency automatc switch function and relay function are taken into account on the design of wfplc - ml iniddle - voltage distribution line carrier modem. coupling equipment is designed with the filter and capacitance fitted togethel in this papef, it is also advanced an scheme about caner signal spanning the distribution line break. the equipment system has been finished and put into use, which has better result. the feasibly and necessity of the studying of this problem are posed
Wfplc3510中壓配電載波系統利用10kv的架空線或電纜，將主控斷發出的命令信息轉換為載波信號通過三相耦合器耦合到電力傳輸線上，在被控端利用單相耦合器耦合到載波信號后轉換為介面信號發送給被控單元，被控單元亦可將返回數據通過單相耦合發送載波信號到主控端，實現信息的雙向傳遞。 -
Presents the simple but highly reliable on - line detection of ultrasonic transducer clamping capacitance based on the impedance circuit model constructed through the impedance characteristics of the ultrasonic transducer under triple harmonics, and concludes from experimental results that this method can be used to effectively detect the variation of clamping capacitance while the transducer is operating, and the matching inductance can be dynamically regulated according to the results of detection, and dynamic matching can therefore be achieved in the real sense at the end of the transducer to improve the overall performance of the whole system
為了解決大功率超聲應用的換能器電端匹配問題，分析了超聲波換能器在諧振頻率三次諧波下的阻抗特性，給出了超聲換能器三次諧波下的阻抗電路模型.並根據阻抗電路模型建立了對超聲換能器的夾持電容實現在線檢測簡單、可靠性高的方法，實驗證明該方法有效的.該方法可以在換能器工作過程中隨時檢測夾持電容的變化，根據檢測結果對匹配電感進行動態調整，實現真正意義上的換能器電端的動態匹配，從而大大改善匹配質量，提高系統的工作性能 -
This paper adopts sequential monte carlo simulation technique and time - varying load model to assess multi - fault reliability of typical distribution network considering line capacitance constraint and power flow of distribution system
本文在考慮線路容量約束和潮流分佈的條件下，採用序貫蒙特卡羅模擬和全年時變負荷模型評估典型配電網多重故障模式的可靠性。 -
The capacitance of a line has two related voltage effects
線路電容對線路電壓有兩個影響。 -
Sub - array and subsection decoding reduce the load capacitance of bit line and word line and enhance the speed of sram simultaneously
存儲陣列分塊技術以及分段譯碼技術降低了sram位線和字線的負載電容，從而提高了sram的速度。 -
It could be a battery source ; however, in most case, the input is a diode rectified ac line voltage with a large filter capacitance, to provide a low internal impedance and low - ripple dc voltage source
該直流電壓源可能是一個電池，然而在大多數的情形是一個經二極體整流的交流電壓再加上一個大的濾波電容，用以提供一個低內阻、低脈動的直流電壓。 -
This paper tries to use the capacitive method to measure sediment concentration in flow - water and use the self - regulating capacitance sensor to carry experimentation in order to study a way and technology used to measure the sediment concentration in a nicety - speediness and on - line way
本研究嘗試著採用電容法測量水流泥沙含量，並用自行研製的電容式傳感器進行試驗，研究準確、快速、在線測量水流中泥沙含量的方法和技術。 -
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。
分享友人