phase load 中文意思是什麼

phase load 解釋
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  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • load : n 1 裝載，擔子；負擔；工作（負荷）量。2 （車船等的）裝載量；一馱，一車，一飛機。3 【電、機】（機...
  1. The paper mainly consider the followings : the performance parameter determination of cryopump, heat load determination and heat transfer of large cryopanel, reasonable distribution of heat load, the condition for construct steady flow in small vertical circle pipeline, balance condition for gas and liquid two - phase flow in the connection pipe between cryopanel and dewar, the safety of cryopump

    文中探討了低溫泵性能參數的確定；大抽速低溫抽氣面的熱負載的確定及合理分配；冷凝面上豎直圓管內受熱建立穩定流動的條件；冷凝面與杜瓦間的連接管道內氣液「雙相流動」的平衡條件；低溫泵系統運行的安全問題。
  2. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程，並給出了調試結果，如負載為阻性、感性和異步電動機時，實驗單元輸出的電壓和電流波形。
  3. The generator shall be run without load for 30 minutes, to record the phase current, volt, frequency, stator and bearing temperature once at intervals of 10 minutes

    電機應空載試運行2小時，每隔30分鐘記錄一次相電流、繞組和軸承溫度。
  4. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  5. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  6. No - load steady - state voltage building of a - connected three - phase induction generator under single - phase operation

    三角接法三相異步發電機單相空載穩態建壓
  7. In the past 10 years, we inherit the tradition of ningbo businessman of “ to conduct ourselves honorably in commercial transaction and business activities ”, insist on the tenet of “ customer first, quality first ”, and have developed 4 series and 40 types of products, which all can provide protection on occasion of power phase lack, motor over load, motor stall, well pump leaking

    十年來，本廠繼承了寧波人素有的「文明經商、誠信經營」的優良傳統，始終抱定「用戶至上、質量第一」的經營宗旨，先後研製了4個系列、 40餘種規格的產品，都能對電機在因電源缺相、電機超載、電機堵轉、潛水泵電機漏水等故障情況下，實施快速可靠的保護。
  8. Many protective and monitoring functions are integrated in the system, such as earth - fault monitoring, short circuit protection, over - load protection, phase symm etry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓等保護功能，並且能通過漢字顯示終端顯示各路負荷的工作狀態和工作參數。
  9. Abstract : the paper describes the application of vacuum preloading in combination with surcharge preloading to improve soft soils for la rge working load in the storage area of phase of nanjiang coal terminal of ti anjin port. analysis is made on the result of the improvement and it is concluded that the technique of vacuum proloading in combination with surcharge preloadin g can be used to improve soft soils for large working load and the result can be remarkable

    文摘:本文介紹了大使用荷載條件下真空聯合堆載預壓技術在天津港南疆煤碼頭堆場（二期）軟基加固工程中的應用情況，並對加固效果進行了詳細分析，得出了大使用荷載條件下可採用真空聯合堆載加固軟基且加固效果明顯的結論。
  10. Three phase dry type power transformer, which make it with those features : safety, reliability, and energy saving, fireproof, flameproof, simple maintenance etc., the design is advanced ; the structure of products is reasonable and the outline is fine, the main performances of the products are much better than the national standards, for example, partial discharge level no - load loss, on - load loss, noise level, it is adaptable for application on heavy humidity and severely pollute places which are near to lake, sea and rive, as well as, high demand - fireproof, heavy load capacity place, such as : high building, airport, station, port, underground, hospital, electrical power station, metallurgy, shopping center, residential area and petroleum chemical industry, nuclear power station, nuclear - powered submarine

    非包封線圈三相干式變壓器，具有安全可靠節能防火防爆維護簡單等優點。其設計先進結構合理外形美觀。主要性能指標均優于國內標準，如局放水平空載損耗負載損耗噪聲以及能適應高溫度環境使用等，可安裝在靠近湖海河邊污穢潮濕的環境及防火要求高負荷較大的地區，適用於高層建築機場車站碼頭地鐵醫院電廠冶金行業購物中心居民密集區以及石油化工核電站核潛艇等場所。
  11. According to the requirements of propeller aerocraft model test in wind tunnel, specifications of the driven motor is presented by aerodynamic analysis, and a short - term operated high power density three - phase induction motor is developed with reasonably designing the motor, such as electromagnetism load, heat checkout and high - efficiency heat exchanger

    摘要針對螺旋槳飛機模型帶動力風洞實驗要求，通過氣動性能分析提出驅動電機的技術指標，在滿足結構約束的條件下，通過合理設計電機的電磁負荷、校核發熱、採用高效冷卻裝置等，研製出短時工作制高功率密度三相異步電機。
  12. This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power

    該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場，可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數，並具有負載性質（感性、容性）判別，正、逆相序判別指示功能；超限報警功能；列印記錄功能和負功檢測及處理功能。
  13. In order to solve need badly three - ring type gear reducer ( problems of high vibration, high temperature and short spin arm bearing life in operation, by means of power separation flow, elastic ring equilibrating load, tardy down and assimilation vibration of synchronous belt transmission, and mechanism balance principle, the author designs a new type three - ring type gear reducer with arc tooth synchronous belt transmission, the gear reducer is fully balancing, equilibrating load and reducing vibration and phase difference 180 ( of mass eccentricity

    為解決一般三環減速器振動大、溫升高和轉臂軸承使用壽命短等生產中迫切需要解決的問題，依據功率分流、彈性環均載、同步帶緩沖及吸振和機構平衡原理，設計出了一種具有圓弧齒同步帶傳動的完全平衡、均載減振，偏心相位差為180的新型三環減速器。
  14. Three - phase four - wire apf with one - cycle control need not sense the three phase load currents or the three phase voltages, need not calculate the harmonics and reactive current components, as well as the use of any multipliers

    單周控制三相四線制有源電力濾波器不需要檢測三相負載電流和三相電源電壓，不需要檢測諧波和無功電流，也不需要使用任何乘法器。
  15. Finally, how the pwm - fcl contributes to the system stability, three - phase load unsymmetry and the transmission capacity is discussed. and how to decide a reasonable compensation rate of the pwm - fcl is also proposed

    最後討論了pwm - fcl對系統穩定、三相負荷不平衡的作用以及它對輸電線路功率傳送能力的影響，並說明在設置其補償度時所應該考慮的問題。
  16. An approach of balancing compensation for any unsymmetrical three - phase load in neutral grounding distribution network

    中性點有效接地系統不平衡負載的平衡化補償理論研究
  17. Unbalanced three - phase load

    不平衡三相負載
  18. Symmetrical three - phase load

    對稱三相負載
  19. The null point shift in three - phase load is studied by using the equation of circumference and an arc and the changing law of the null point shift is discussed qualitatively

    運用圓弧方程和圓圖分析了三相負載中點位移的特性，定性討論了中點位移的變化規律，這對加深理解中點位移和實際應用有參考意義
  20. This paper introduces the three situations where the asymmetry of three - phase current takes place and proposes the calculation methods of the annexed line losses and of loss reduction when the addition of the three - phase current load is not equal to zero because of the asymmetry of the three phase load

    摘要闡述了三相不對稱電流的三種情況，並提出了因三相負載不對稱而引起的三相電流相量之和不為零時的附加線損的計算方法及降損措施。
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