有功電流 的英文怎麼說

中文拼音 [yǒugōngdiànliú]
有功電流 英文
active current
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 功 : 名詞1 （功勞） exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • 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...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 有功 : have rendered great service; have performed meritorious service
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. Ac tri - phase active electric energy meter note1

    三相交流有功電能表
  2. Intelligent electricity quantity concentration display instrument is a kind of intelligent instrument used to measure combined parameter of ac electricity quantity, which can simultaneously measure each phase electricity parameter in the tri - phase ac loop such as voltage, current, active power, reactive power, apparent power, power factor, frequency, active kilowatt hour, reactive kilovolt ampere - hour and so on

    智能電量集中顯示儀是一種用於交流電量綜合參數測量的智能儀表，它可以同時測量三相交流迴路的每一相電壓電流有功功率無功功率視在功率功率因數頻率有功電度無功電度等參數。
  3. Dds951 series electronic single - phase electric meter is the most advanced static electronic meter in china. the meter designs use large - scale intergated circuit. high reliability step motor, it can the ac single - phase active energv voltage rating : 220v : frequency 50hz, positive and negative two directions and accumulates in one direction. the test singnal is isolated by phototransistor : it also has the function of anti - fraud, and indicates it s operation situation on flash light, so it could be managed very easy

    Dds951單相電子電能表，是金雀儀表公司開發的新型電度表。該產品是採用規模專用集成電路，高可靠性步進電機等先進技術製造的國內最新電能試題新產品，用來計量額定電壓為220v ，頻率為50hz的交流單相有功電能，該產品能夠精確計量正負兩方向的有功電能，且以同一個方向累計。
  4. The reactive power compensation is an important engineering in the power system. the active reactive power compensator designed in this text takes the instantaneous reactive power theory of three - phase as foundation, and is formed by the reactive current testing circuit, current tracking control circuit and the main circuit, and among them the current tracking control circuit is formed by instruction current arithmetic circuit, current polarity checkout circuit and current tracking control logic circuit three parts in the circuit form

    無功功率補償是電力系統中的一項重要工程，本文所設計的有源無功功率補償器是以三相瞬時無功功率理論為基礎的，它由無功電流檢測電路、電流跟蹤控制電路和主電路三大部分組成，其中電流跟蹤控制電路由指令電流運算電路、電流極性檢測電路和電流跟蹤控制邏輯電路三部分構成。
  5. The emulational calculating theories of traction power supply system ' s operating charts combine with actual things of engineering design at present in chapter three, to set up traction web current distributing mathematical model, integral distributing mathematical model, locomotive distribution and obtaining current model at every moment, and on which making use of mathematical planning methods to set up mathematical models is based at every moment in every instance interval of the railroads. for instance, instantaneous current, instantaneous voltage descent and effective current, main changing capacity and so on, in addition, there are the minimum power shortage model, the optimal transformer substation location, the least engineering expenditure, the optimal mathematical model of traction power supply system. optimize design ' s algorithm of traction power supply system is introduced in detail in chapter four, where programming idea and realizing method of the computer software are given an explanation

    本研究主要進行了以下工作：結合牽引供電系統運行圖的模擬原理和現行工程設計的實際情況，建立了牽引網電流分佈、積分分佈、任一時刻機車分佈和取流的數學模型；應用數學規劃方法建立了任一距離區間、任一時刻的瞬時電流、瞬時電壓降數學模型和有效電流、主變容量和主變壓降、最小功率損失、最佳變電所容量、最佳變電所位置、最少工程費用、最少運營維護費用和牽引供電系統方案最優等方面的數學模型；闡明了牽引供電系統優化設計的演算法和計算機軟體編程思想及實現方法；進行了工程實例計算；最後，對牽引供電系統優化設計技術應用進行了總結。
  6. 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。
  7. Ac tri - phase active electric energy display control instrument ; double screen digital display ; outline dimension 16080 mm ; no communication interface ; no transmit output ; tri - phase four - wire connection mode ; high limit alarm lower limit alarm ; switch power supply ; input voltage signal 0 100v ; input current signal 05a ; active power display 0120. 0 kw, active electric energy display 099999999999999 kwh. 1

    交流三相有功電能顯示控制儀雙屏數字顯示外形尺寸16080無通訊介面無變送輸出三相四線制接線方式上限報警下限報警開關電源供電輸入電壓信號0 100v輸入電流信號0 5a有功功率顯示0 120 . 0kw ，有功電能顯示0 9999999999999kwh 。
  8. Ac tri - phase reactive electric energy display control instrument ; double screen digital display ; outline dimension 16080 mm ; no communication interface ; no transmit output ; tri - phase four - wire system ; high limit alarm lower limit alarm ; switch power supply ; input voltage signal 0380v ; input current signal 05a ; reactive power display 0114. 0kw active electric energy display 09999999999999kwh

    交流三相無功電能顯示控制儀雙屏數字顯示外形尺寸16080 ;無通訊介面無變送輸出三相四線制上限報警下限報警開關電源供電輸入電壓信號0 380v輸入電流信號0 5a無功功率顯示0 114 . 0kw ;有功電能顯示0 9999999999999kwh 。
  9. Based on the theory of branch complex power, accurate formulas are derived to determine complex loss and flow components in power elements. to overcome the deficiencies of the traditional methods which transmission cost is allocated to users only based on active power flow and the existed using portion definitions which fail to take it into account that the interaction of active and reactive power, a new definition of the using portion of a power element by a particular generator or load is addressed

    針對當前輸電費用只按有功潮流進行分配，無法計及無功潮流交叉影響的缺陷和基於傳統的電路理論無法結合有功無功潮流來定義元件使用份額的問題，本文又在復功率電源的支路功率分量理論基礎之上，基於發電機和負荷的復功率在支路上引起的有功損耗分量，給出了發電機和負荷對元件使用份額的新定義。
  10. Thus the reactive compensator can be located in the center of the distributed load in the area and make the best user of the compensator ' s capacity. the distance flowed by the reactive current is efficiently reduced and the active loss of power net goes down. two - stage control model is adopted in the optimized control technique of the system

    該系統採用了測量點與補償點與分開的方式，實現了區域性無功負荷監視，使無功補償點可以安置在區域性分散負荷的中心部位，最大程度地利用了補償容量，有效地縮短了無功電流傳輸的距離，降低了電網的有功損耗。
  11. This approach is called fas. this approach uses characteristics of trigonometric function, respectively computes the amplitude of fundamental component and inactive power current separates them by low pass filter and acquires and inactive power current

    該方法利用三角函數的特性，對畸變電流中的基波成分和無功電流分量的振幅分別進行計算，然後經過低通濾波器把它們分離出來，最後得到基波有功和無功電流分量。
  12. The reactive power optimization compensation is to find the suitable compensation place and the best compensation capacitance by adjusting the generator bus voltages, transform taps and reactive compensation capacities in the condition of satisfying power load requirement, which can guarantee the secure and high quality power for consumers. the improved genetic algorithm is applied in this thesis according to the features of reactive power optimization of high voltage transmission bus, which are the non - linear problems with multi - variables and multi - restrictions

    電網無功優化補償是在有功潮流調度給定的情況下，以負荷節點電壓和線路輸送無功功率作為狀態變量，運用優化演算法，調節發電機節點電壓、變壓器可調分接頭和無功補償裝置，在滿足電力負荷的要求下，尋求合理的無功補償點和最佳補償容量，保證電網能夠安全、優質地向用戶供電。
  13. This unit is particularly designed for monitoring 400v feeder with backup automatic switch. it could accurately measure and calculate : voltage, current, frequency, active power, reactive power, power factor and energy. when bus gets into trouble, it can perform the function of automatic switching to backup power supply

    該單元是特別針對400v饋線備自投而設計的，它具有測量母線的電壓、電流、頻率、有功功率、無功功率、功率因數以及有功電度、無功電度等電參數的功能；當母線出現故障（過壓或欠壓）時，能夠完成兩組母線的自動投切，即備自投的功能。
  14. Acceptance inspection for direct connected alternating current static watt - hour meters for active energy classes 1 and 2

    1和2級直接接入靜止式交流有功電度表驗收檢驗
  15. From simulation we can see that the lower of the digital low pass filter ' s cut off frequency, the smaller of the instruction current ' s aberration. experience from foreign country show that active power filter has good application foreground. so its research and application is very important in the future

    本文還重點討論了數字低通濾波器的設計及其截至頻率對指令電流精度的影響，通過模擬得出結論：數字低通濾波器的截止頻率越低，基波有功電流的畸變就越小，從而基波有功電流減去負載電流求得的指令電流的誤差也越小。
  16. 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。
  17. The validity and superiority of all these are proved by use the parallel converter of novel upfc to implement reactive current compensation, zero sequence and negative sequence currents compensation, harmonic currents compensation and the mixed compensation of them. this thesis also studies that use novel upfc to implement two phases operating in high - voltage transmission lines by theory analyze and simulation testify

    提出了基於多電平變換器的廣義大功率有害電流補償的概念，提出了適合於它的多環定時滯環控制方案，通過用新型upfc的並聯變換器實現無功補償、零序和負序補償、諧波補償及它們的綜合補償來驗證了其有效性和優越性。
  18. After the summarization of present literatures, analyses and comparisons are made on the asvg ' s main circuit, present detection system and control methods

    根據現有文獻對靜止無功發生器的主電路結構、各種有害電流檢測方式和控制方式進行了分析、比較和總結。
  19. Alternating current static watt - hour meters for active energy classes 1 and 2

    1級和2級靜止式交流有功電能表
  20. Dd862 and dd862a single phase electic meter are in duction meter. it is used in calculating 50hz single - phase ac active electrical energy. it is compaosed of electromagnetic element. moving disc, bearing, damping magnet steel, counter and regulator and regulator equipment. the meter has high precision, high over - load, long lifetime and so on features

    ： dd862型和dd862a型單相電度表是感應式儀表，用於計量器頻率為50hz的單相交流有功電能。它主要由電磁元件轉動圓盤軸承阻尼磁鋼計度器和調整裝置等組成，本表具有高精度高過載長壽命等特點。
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