覆冰 的英文怎麼說

中文拼音 [fùbīng]
覆冰 英文
frost covering
  • 覆 : 動詞1. [書面語] （蓋住） cover 2. [書面語] （底朝上翻過來; 歪倒） overturn; upset 3. 同 「復」 （Ⅱ1. 2. ）
  1. On the test investigation, a lot of flashover tests are made in 10kv, 35kv and 63kv voltage condition on post insulators and suspensor insulators, including all conditions covered with snow or ice. which included different environment temperature, different melted ice and melted snow etc multi - condition

    試驗中，對不同冠雪量、不同覆冰量、不同溫度及不同融冰、融雪等多種情況，環境溫度在零上幾度，零下十幾度到幾十度等不同情況進行了試驗。
  2. Dimensional analysis of the collection coefficient wire covered by ice

    導線覆冰時收集系數的量綱分析
  3. And so far, lots of investigation was conducted on the insulators " leakage current measurement and logging, but the investigation of the entireness process measurement and logging of the iced insulators flashover is also vacancy

    至今為止，雖然對絕緣子泄漏電流的檢測和記錄已進行了大量研究，但針對覆冰絕緣子閃絡過程中泄漏電流變化全過程的測量和記錄的研究仍然是空白。
  4. Electrical field stress at the icicle tips is even stronger. at these areas, if the electric field across air gaps is high enough, corona discharges are initiated. this can lead to the development of local arcs across the air gaps causing a substantial increase in leakage current and a concomitant melting of ice

    空氣間隙的存在使覆冰絕緣子表面的電場分佈發生了明顯畸變，間隙上承受了非常高的電壓，這使得冰凌尖端的電場變得相當強，一旦電場達到了電暈的起始電場，局部放電就在這一區域發生，進而產生局部電弧並逐漸發展成整串的閃絡，泄漏電流迅速增大，同時伴隨著冰的融化。
  5. This article, which researches on composite insulators " ac flashover characteristic in high altitude and ice environment, has significant science values in theory and can also create enormous economy benefit in engineering

    因此本文研究合成絕緣子在高海拔和覆冰地區的交流閃絡特性在理論上具有非常重要學術價值，在工程上能夠創造巨大的經濟效益。
  6. The main tests and researches are as following : to study the ac flashover characteristic of composite insulator in different icing states by imitating tests in multifunctional artificial climate chamber, and analyze the effect of ice amount and icing water conductivity on flashover voltage, put forward a flashover mechanism by analyzing the icing flashover process. to study the ac flashover characteristic of composite insulator in different altitude and icing states together by imitating tests in multifunctional artificial climate chamber, and mainly analyze the effect of altitude ( air pressure ) and ice amount on flashover voltage, and investigate the flashover mechanism. to investigate the effect of high altitude and icing on the hydrophobicity of composite insulators

    本文主要進行了以下試驗研究： 1 ）在多功能人工氣候室里模擬不同覆冰程度下合成絕緣子的交流閃絡特性，主要分析覆冰量和覆冰水電導率對閃絡電壓的影響，並對其覆冰閃絡過程進行機理分析； 2 ）在多功能人工氣候室里模擬不同海拔高度和覆冰程度綜合作用下合成絕緣子的交流閃絡特性，主要分析海拔高度（即氣壓）和覆冰量對閃絡電壓的影響，並進行閃絡機理分析； 3 ）研究高海拔和覆冰對合成絕緣子憎水性的影響。
  7. With regard to the special environment of high altitude and ice, this paper mainly studies the effect of altitude ( air pressure ), icing states ( ice amount ) and icing water conductivity on the ac flashover characteristic of composite insulators. furthermore, it analyzes the hydrophobicity of composite insulators in these environments

    針對高海拔和覆冰地區特殊的環境，本文重點研究海拔高度（即氣壓） 、覆冰程度及覆冰水電導率等對合成絕緣子交流閃絡特性的影響，並且對合成絕緣子在高海拔和覆冰環境下的表面憎水性變化進行分析。
  8. Upon existent theoretical and experimental results and based on a great of laboratory investigations carried out in chongqing university, for the first time this paper studies systematically the insulators dc discharge performance and flashover mechanism of iced insulators in the complex atmospheric environment, which will contribute to the understanding of flashover phenomena observed on ice surface at low air pressure and provide the test and theoretical reference for hv and ehv transmission lines design and safety service

    為此，在國內外現有工作的基礎上，通過大量的試驗研究，本文主要研究了復雜環境中絕緣子的直流閃絡特性及閃絡機理。其結果有助於進一步了解低氣壓下覆冰絕緣子的閃絡現象，並可為輸電線路的設計和安全運行提供理論依據。
  9. Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical

    通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。
  10. All the transmission lines of west - east electricity transmitting project are inevitable to crossing the high altitude and icing areas. for the reducing of the air pressure and the absolute humidity, the electricity strength of insulators will drop obviously. therefore, it must be considered the effect on the insulators " flashover voltage caused by the change of altitude and ice when the insulation cooperation of transmission lines are being designed

    「西電東送」工程的所有輸電線路都不可避免的要經過高海拔和覆冰地區，由於大氣壓力和絕對濕度的降低會使絕緣子的電氣強度顯著下降，因此在進行輸電線路的絕緣配合設計時必須考慮到海拔高度和覆冰的變化對絕緣子的閃絡電壓影響。
  11. On the condition of insulator covered in snow or ice chill climate area of northeast in china, many accidence of insulation flashover occurred which brought prodigious damage for electric power system and loss for economic

    國內東北地區在寒冷氣候條件下覆冰覆雪時曾發生過多次閃絡和絕緣擊穿事故，造成極大危害和經濟損失。
  12. The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material

    本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。
  13. The longer the air gap is, the higher the inception voltage ; the inception voltage is lower with 2kv at wet ice than dry ice. while, there is not a distinct effect of water conductivity on the initiative voltage

    間隙越長，起暈電壓越高;濕冰情況下間隙的起暈電壓比乾冰約低2kv ;而覆冰水電導率對起暈電壓沒有明顯的影響。
  14. The electric field distributions of cleanness and covered with snow, the electric field variety of covered with ice, and the break down electric strength of covered with snow and ice were analyzed. the affect of the angle of medium loss for insulation performance was analyzed

    對冠雪絕緣子與清潔（無雪）絕緣子的電場分佈作了比較；分析了覆冰后電場分佈的變化；對覆冰、冠雪時的擊穿場強進行了分析；還分析了介質損失角正切對絕緣性能的影響等。
  15. The white wolf padded along the man trail beneath the icy cliff

    覆冰的峭壁下，白狼沿著人類的蹤跡緩步前行。
  16. Galloping is a low frequency, large amplitude, wind induced vibration of high voltage overhead transmission line

    高壓架空輸電線路舞動是覆冰導線在風的作用下發生的一種低頻大幅度振動。
  17. Investigation on ice - shedding induced by wind for iced wires

    覆冰導線風動脫冰研究
  18. The existence of air gaps will inevitably distort strongly electrical field distribution and cause to a significant voltage drop across the gap, which causes severely non - uniform electrical field near the icicle top

    運行和試驗研究表明，絕緣子串在運行電壓或試驗電壓下覆冰時其高壓端總是存在空氣間隙。
  19. By applying related theory of gas discharge and mathematical statistics, this paper more in - depth and systemic study the influence of the length of air gap, ice state, water conductivity and air pressure on the inception corona and pulse discharge characteristics, included the discharge frequency, discharge amplitude and time interval

    根據試驗結果，用氣體放電和數理統計方法，分析了覆冰水電導率、冰的狀態（乾冰和濕冰） 、空氣間隙長度、氣壓和施加電壓等參數的變化對間隙模型的起始放電電壓、脈沖放電特性、放電頻率、放電幅值和時間間隔等的影響。
  20. Analysis and engineering application of wire icing mechanism

    電線覆冰機理分析及在工程設計中的應用
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