特高電壓 的英文怎麼說
中文拼音 [tègāodiànyā]
特高電壓
英文
extreme high voltage-
Analysis of research on uhv ac transmission in china
我國特高壓交流輸電研究現狀In this paper, a kind of output current feed - forward circuit is added into the input of the current loop. by adding this compensatory circuit, the output character of the inverter is improved greatly
本文還研究了一種提高逆變器輸出電壓外特性的思路,通過將負載電流正反饋給逆變器的電流環輸入端,從而達到提高輸出電壓的外特性的目的。Scheme selection of holding poles erection for ehv transmission towers
特高壓輸電線路鐵塔組立抱桿的方案選擇Organic electroluminescent devices ( oleds ) have aroused many scientists " interests because of their potential adventages in low - power, emissive, flexible, cost - competitive, flat panel displays. red, green and blue light - emitting devices are readily avaible
有機薄膜電致發光器件具有驅動電壓低、發光效率高、制備容易、可製成大面積的平板顯示器以及顏色豐富等特點,已引起各國科學工作者的廣泛關注。Helicopters in action " is about to take you on an adventure around the world from sierra leone, where you ll participate in delivering humanitarian aid in the largest helicopter in the world, to miami for a wild ride in a black hawk helicopter intercepting drug runners. hold on while you swing through the air with five marines dangling from a rope attached to a ch - 46 flying over the atlantic and swoon as a cobra swoops low over enemy territory. try not to slip as you traverse 500, 000 - volt high wires
全天域電影直升機行動組將會帶你參與周遊列國的歷險旅程:在非洲獅子山你會乘坐全球最大型的直升機協助人道救援工作在美國邁阿密,你會登上黑鷹直升機截擊毒販又或者與五名美國海軍陸戰隊隊員一起乘坐ch - 46直升機,飛越大西洋上空,並在半空游繩而下或乘坐眼鏡蛇直升機在敵方領空低飛或登上直升機,跳上500 , 000伏特高壓電纜上進行維修工程或屏息靜氣,緊隨獸醫在南非乘坐直升機在離地面3米的高度,向黑犀牛發射麻醉槍或乘坐直升機跳入驚濤駭浪中參與海難救援工作。The wave of magnetic induction density will bring distortion with the raising of excitating voltage while measuring the magnetization characteristic
在進行磁化特性測量時,隨著激磁電壓的升高,磁感應強度波形將產生畸變。The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨導線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器,獲得了良好的頻率響應。Ac ceramic capacitors mainly consist of tatanate. they are mainly used in transwire and alternate circuits applications, with highest voltage of ac 400v
交流瓷介電容器主要由鈦酸鹽組成,主要特點可用於跨電源線及交流電路中用,最高電壓為交流400v 。The multi - level ( ml ) converter has the advantages such as low voltage stress for power devices, smaller output filters and reduced harmonic content of the output voltage, it is very suitable for high voltage and high power conversion applications
多電平變換器具有電壓應力低、輸出濾波器小及輸出電壓諧波含量小等優點,特別適合於高電壓大功率的應用場合,近年來正受到越來越多的關注。Four methods have been taken to decrease the total heat quantity generated by the solenoid coil. the four methods are to reduce the duration of the high voltage, to reduce the amplitude of the high voltage, to reduce the duration of the control signal, and to reduce the amplitude of the low voltage. it was found that the four methods did have some effect on temperature
研究發現,以減小電磁閥的總發熱量為目的而採用的縮短高電壓作用時間、降低電磁閥高低壓驅動的高電壓幅值、縮短控制信號持續時間和降低維持電壓的四種方法,對減小電磁閥的發熱都是有效的,但效果都不特別顯著。Abstract : this paper introduces a new class f epoxy glass - cloth laminate. the synthesis of a epoxy adhesive and the production process were studied. the properties of the laminate were compared with those of some similar products abroad. the results show that the laminate has higher adhesive strength 、 resistivity in moist conditions 、 dielectric strength and mechanical strength in higher temperatures. it is applicable for electric equipments, especially those to run in higher moisture or higher temperature conditions
文摘:本文介紹了最近開發成功的一種新型f級耐高溫層壓板,研究了環氧樹脂膠粘劑的合成,層壓板的製造工藝及其性能,並與國外同類產品進行了對比,結果表明,它具有粘接強度、浸水后絕緣電阻及耐電壓、高溫機械強度高等特性,可用作大型高壓電機、輸變電設備以及核電工程、低溫高真空工程中絕緣結構材料,尤其適用於高電壓、高溫、高機械強度的工作環境。We observed anomalous instrument responses above certain voltages when characterizing aggregates of airborne carbon nanotubes or nanofibers using a differential mobility analyzer ( dma )
研究者發現當使用?定性移動性分析器去分析空氣中的奈米管或奈米微粒聚集特性時,較高電壓會產生設備異常反應。After discussing the theoretical basis for a designing method of cam mechanism based on output force ( moment ) characteristics, a new designing method for that mechanism is presented and then, employed for designing a spring actuating mechanism in vacuum circuit breaker with singlephasy single breaker contact which operates under the condition of high - voltage and large - current. the application of this method shows that the cam mechanism designed by using the method presented can completely meet the requirement of output force characteristics for the mechanism and, furthermore, the performance of the mechanism is remarkably better than that of similar mechanisms designed by using conventional methods
介紹了一種按輸出力(力矩)特性曲線設計凸輪機構的新方法.闡述了這種設計方法的理論依據,並將這種設計方法應用在高電壓等級、高工作電流單相單斷口真空斷路器的彈簧操動機構中.結果表明:用這種方法設計的凸輪機構完全能滿足機構所要求的輸出力特性的要求,且機構的性能明顯優于用傳統方法設計的機構A novel structure of peterson coil with particular design can fully satisfy above requirements and allow us to use the lower critical voltage - level thyristor in the 6 - 10kv and higher voltage power system. the novel peterson coil design resolves key problems of using thyristor to control the peterson coil, and becomes the foundation of realizing quick adjustment of the inductance value of the peterson coil
由於其特有的諧波問題、耐壓問題等,本論文涉及的一種新型消弧線圈,通過消弧線圈的特殊設計,使常規耐壓范圍的可控硅技術可以應用於6 - 10kv和更高電壓等級的系統,解決了可控硅控制應用於消弧線圈的根本問題,為實現電感量的快速調節打下了基礎。The doubly fed induction machines speed adjustment system has the advantage of good speed adjusting behavior, low harmonic pollution, high reliability and cheap productive price. due to these characteristics, it is especially suitable for those situations with high voltage level, high power and not large speed adjustment range, such as wind machines and pump load
感應電機的雙饋調速系統具有調速性能好、低諧波污染、可靠性高及造價低廉等優點,特別適合於高電壓、大功率且調速范圍不大的場合,尤其適用於風機、泵類負載。Microprocessor based high voltage busbar protection has rapidly expanded. on the basis of analysis grouping - principle based middle and low voltage protection are put forward. the special busbar protection has adopted effective measures so that large improvement such as simpleness, reliability, economy, sensitivity and some appending additional functions has been obtaimed
高電壓等級母線微機保護已經進入到成熟發展階段,本文在對國內外現有母線保護進行研究分析的基礎上,根據中低壓母線的特點,提出了一種基於分組原理的母線保護,可以很好地解決中低壓母線保護的實際工程問題,使得系統簡單、可靠、經濟、靈活、易於擴展,而且容易附加其它的保護功能。Excitation at 493nm, the emission peaks of pff5 in chloroform solution is 540nm and 580nm. using pff5 as the emitter, an efficiency single layer led has been fabricated. 3
利用pff5作為發射層,研製單層高效的聚合物發光二極體,研究器件的伏安特性、電壓亮度特性和電致發光光譜。Multilevel ( ml ) converters have been attracting more and more attention because they have the advantages such as low voltage stresses for power devices and reduced harmonic content of the voltage waveform. they are very suitable for high voltage and high power conversion applications
多電平直流變換器由於其開關管及二極體的電壓應力低、輸出電壓諧波含量小等優點,特別適合於高電壓大功率的應用場合,近年來正受到越來越多的關注。Consequently, it is also the most effective system location for implementing remedial measures. the significant influence of system parameters on the voltage stability are also investigated
該母線也是採取補償措施來提高電壓隱定性的最有效位置,根據電壓穩定圖和最小特徵值圖可以評估補償措施的效果。Utilizing special gas to be in charge of discharging, the principle suppress the too high voltage
利用特殊的氣體管放電原理來壓制過高電壓。分享友人