相地間電壓 的英文怎麼說

中文拼音 [xiāngdejiāndiànyā]
相地間電壓 英文
voltage between phase wire and ground
  • 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...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 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。
  • 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. A protective method based on voltage - frequency - converter and additional dc measuring the insulation between monitor wire and ground lines of hv double screen cable is developed and realized by analog and digital circuits

    通過分析6kv電纜絕緣監視保護的特點，提出了在高壓電纜監視線與接地線之間附加直流電源並利用v / f轉換實現監視保護的新方法，設計了相應的電路。
  4. Capacitance between any two terminals in the installation should no more than 1. 06. 3. insulation level of installation : for rated voltage of 6kv installation, it can endure 23kv rms for 1 min between the phrase to phrase or phrase to earth of main circuit ; for rated voltage of 10kv installation, it can endure 30kv rms for 1 min between the phrase to phrase or phrase to earth of main circuit ; it can be endure 2kv rms for 1 min between auxiliary circuits of installation

    3 .裝置的絕緣水平： 6kv額定電壓的成套裝置，其主電路相間及相與地之間，工頻耐受電壓方均根值23kv ， 1min 10kv額定電壓的成套裝置，其主電路相間以及相與地之間，工頻耐受電壓方均根值30kv ， 1min成套裝置輔助電路工頻耐受電壓方均根值2kv ， 1min 。
  5. A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer

    論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
  6. 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。
  7. The results show that, when the compressor continuously runs, the stability of the test bed after using manual valve is better than that of using thermal valve, and it is little affected by the kinds of valves for adjusting cooling water ; and that, when the compressor intermittently runs, the operation stability would be obtained if pneumatic valve is used to adjust cooling water, especially at low speed

    結果表明，壓縮機連續運行時，製冷劑採用手動閥調節后工況的穩定性明顯好於採用熱力膨脹閥時的情況，此時調節冷卻水量用的電動調節閥和氣動調節閥對工況穩定性影響相差無幾；間歇運行時，無論是熱力膨脹閥還是手動閥，即便壓縮機通電時間最長，仍達不到設定工況，特別是低速的斷續尤為明顯，而使用氣動閥就能很好地解決這一問題。
  8. Obtained by emtp program and the egm, this paper studies on lightning protection performance on 500kv double circuit transmission line the distributed parameter model of tower is built when analyzing the back stroking lightning protection performance for double circuit line, it can truly reflect the spreading course of lightning current on the tower, furthermore, considering the randomness of working voltage ' s phase when lightning strokes the top tower and supposing the probability of lightning appearing arbitrary phase in a cycle of ac is equal, this paper brings forward the statistical method to calculate the rate of back stroking on double circuit line

    本文利用emtp程序、擊距法對500kv同桿雙回線路的耐雷性能進行了研究。在分析同桿雙回線路的反擊耐雷性能時，建立了桿塔的分佈參數計算模型，此模型可以真實地反映雷電流在桿塔上的傳播過程。並針對雷擊塔頂時，導線運行電壓相位角的隨機性，本文假定雷擊出現于交流一周期的任一角度區間內的概率相等，提出了利用統計法計算同桿雙回線路的反擊跳閘率。
  9. In the 3 ~ 35kv power supply system of our country, the large part is the not solidly earthed neutral system. when the single - phase earthed phenomena happens in this system, this electric power network can run with failure. and in this way the operated cost can reduce greadty. and at the same time the power supply systemic dependability can be improved. but when the single - phase earthed current is large, this electric power system can engender easily arc earthed overvoltage and interphase short circuit by this means

    在我國10 35kv供電系統中，主要為中性點非直接接地系統，這種系統在發生單相接地時，電網仍可帶故障運行，這樣可以大大降低運行成本，提高供電系統的可靠性，但這種供電方式在單相接地電容電流較大時容易產生弧光接地過電壓和相間短路，給供電設備造成了極大的危害。
  10. In order to obtain three - phase four - line ac output, system applied the four - legged main circuit topology. with the 3d - svm, the power system realizes voltage regulation and three - phase four - line output. meanwhile, this kind of control is easy to be realized in the digital inverter

    為實現三相四線的交流輸出，變換器電路採取四橋臂新型拓撲，其控制採取了三維空間矢量調制，實現了變換器的在線調壓及輸出中點的形成，具有良好的動靜態性能，且這種控制思想可以方便地在現有數字變換器平臺上實現。
  11. A zero - voltage starting method is brought forward which switch the starting from separate exciting to self - exciting successfully ; pll ( phase lock loop ) technology is employed to realize the frequency tracing and constant phase angle control ; igbt driving and protective circuit suitable for parallel inverter is developed, which successfully solve the problem of time compensating and overlapping regulation for the driving signals ; a novel and practical over - voltage protective method for parallel inverters is presented which effectively avoid the possible over - voltage destroy to the inverter. xu haiwen ( power electronics and electric driving ) directed by senior engineer peng yonglong

    提出了一種零壓啟動的他激轉自激方法；通過採用鎖相環技術實現了逆變器工作頻率的自動跟蹤和容性逆變角度的恆值控制；設計了適用於並聯諧振型逆變器的igbt驅動與保護電路，解決了驅動信號的時間補償以及重疊角的可調問題；提出了一種新穎、實用的逆變器過壓保護方法，有效地解決了並聯型諧振逆變器過壓保護這一難題。
  12. Under different load, when we apply this software to any time, region and cooling way, we can get the hottest spot increment and aging rating. to manufactory, the software means sounder thermal design, which will meet the load, putted forward by user, while to user, the software equal to a master who can help them decide the capacity rating of the transformer, which will fit the load. by using the software, the potential danger and the waste, caused by unfit load choice may be avoided

    研究開發了計算乾式電力變壓器負載能力的計算軟體，可對于各種絕緣結構，各種冷卻方式和任一地區、任一時間下運行的變壓器在不同運行載荷下的最熱點溫升絕緣老化率進行分析和計算，同時利用該軟體製造廠可以依據用戶提出的運行負載量給出相應的熱設計方案，用戶可根據運行負載情況利用軟體計算所需變壓器的額定容量，避免額定容量選擇不當造成隱患和浪費。
  13. Since 1996, six international global telemedicine conferences have been held by the university, the largest of all being the " moving with the sun 97 " conference which was the first 24 - hour telemedicine conference linking up 19 medical centres across the world. telemedicine links medical experts in different parts of the world together by using high speed multimedia network such as asynchronous transfer mode ( atm ), very small aperture terminal ( vsat ) and virtual private network ( vpn ) as communication media in conjunction with compressed video conference technology

    遠程醫療是醫療技術與高科技相結合的典範，以高速多媒體電信網如異步傳輸模式（ atm ） 、高速衛星專線（ vsat ）及組建虛擬專用網（ vpn ）作為通訊渠道，並配合先進視像壓縮技術與世界聯網，使身處不同地方的醫學專家可以面對面進行各種醫療活動，打破時間和空間的限制，為救死扶傷開創了另一新途徑。
  14. Prosprosing a tansformer winding model to judge whether the transformer has come into bing interturn short circuit and the degree of interturn short circuit, and providing an availability for condition monitoring of transformer that improves the accuracy of condition monitoring and fault diagnosis. 3. the accuracy and invalidity of diagnosis of fault positions and fault characters of power transformer would be improved greately if reasoning and analyzing the operation records and oringnal datums of transformer

    建立變壓器繞組狀態監測和故障診斷的模型，通過對繞組在線監測判斷繞組是否發生了匝簡短路、具體哪一相發生匝間短路以及匝間短路的嚴重程度，為變壓器狀態監測提供了有效的狀態監測量，實現了變壓器故障的局部定位，有效地提高了電力變壓器故障診斷的準確性。
  15. The change of atmospheric pressure reflect the change of the altitude and the change of the temperature 、 humidity and relative air density in the different altitude region, so the atmospheric pressure is able to be use for the characteristic parameter of token the effect of the altitude on external

    氣壓可作為表徵海拔高度對外絕緣放電電壓影響的特徵參數；高海拔地區空氣間隙和絕緣子串的放電電壓u均可表示為相應海拔下氣壓的冪函數，即u = u0 （ p / p0 ） n ，其中氣壓對放電電壓影響的特徵指數n與電壓類型和放電間隙的結構類型以及絕緣子類型等有關。
  16. 2. one voltage controlling manner is presented. this manner combines amplification and attenuation, and fine control and coarse control can be operated separately, it can adjust the amplitude by 1mv step in the range of 50mv to 10vpp conveniently

    2 .提出一種放大與衰減相結合，精細控制和粗略控制分別進行的電壓控制方式，可以方便地實現信號幅度在50mv ? 10vpp之間以1mv的步進改變。
  17. In the paper, the relationships are introduced between gases category, and content dissolved in transformer oil and the destroy degree and fault style. the author have a deep research on the method of grey clustering, and classify together about consanguineous samples when giving attention to the sample characteristics " complexity and illegibility, so the system can realize expectant aims on the bases of lesser information. the analysis of instances testifies that the implement of theory of grey clustering on fault diagnosis in transformer is effective and the calculation is convenient

    針對目前電力變壓器故障診斷方法的現狀，特別是對結構復雜的大型電力變壓器等電氣設備的故障診斷，首要的問題是如何根據反映變壓器故障特徵量指標來正確判斷待診設備是哪一類故障，作者對灰色聚類方法原理進行詳細分析，在兼顧樣品特徵的復雜性和模糊性的基礎上，依據樣本一定的特徵因素，使兩樣本間關系比較密切、相似程度比較大的同屬一類，把一個不甚明確的整體信息不足的灰色系統盡可能地淡化、白化、量化、優化和模型化，以便能依據較少信息實現預期的目的。
  18. Based on the general and flexibility of the system, it completes the measure of open circuit voltage and short circuit automatically, and data transfer. it can save time and manpower, increases the productivity and improves the working condition

    基於系統的通用性和靈活性，該系統可精確可靠地自動完成電池開路電壓、瞬間短路電流的測試，數據傳輸，節約了相當的時間和人力，不僅提高了勞動生產率，而且大大地降低了工作人員的勞動強度。
  19. A indirect fiber - trigger system is adopted for high voltage thyristor vale, which solves the problem of high voltage insulation and improves the capability against interfering and the reliability of the control signal. the thyristor gate electronics is also designed

    論文採用間接光纖觸發方式作為高壓晶閘管閥的觸發隔離系統，很好地解決了系統的高低壓隔離問題，大大提高了控制信號的傳輸抗干擾能力和可靠性，並設計了相應的晶閘管門極電子電路。
分享友人
分享到 Line

分享到臉書