single-phase current 中文意思是什麼

single-phase current 解釋
單相電流
  • single : adj 1 僅只一個的，單獨的；單式的；【植物；植物學】（花等）單瓣的；【無線電】單工的，單次的。2 獨...
  • 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，...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. Single - phase earthed capacitance current automatism compensate device of 6kv electricity - net

    電網單相接地電容電流的自動補償裝置
  2. The product adapts to single - phase asynchronous motor and three - phase asynchronous motor, which is supplies with single - phase power and the frequecy is blew 100hz. it is specially used for supplying leading current for elecrtomtor, and then the electromotor is actuated with the adeqate moment consequently. and when the electromotor runs smoothly, the capacitor will disconnect from the circuit. the product possesses stable capacity and long relative runtime

    1 .用途及特點適用於100hz以下單相異步電動機和單相電源供電的三相異步電動機，專門用於向電動機提供超前電流，使電動機獲得足夠的力矩而起動。
  3. Watthour meters in moulded insulation case without instrument transformers, up to 60 a rated maximum current ; principal dimensions for single - phase meters

    最大額定電流在以下的不帶儀表互感器模塑
  4. Watthour meters in moulded insulation case without instrument transformers, up to 60 a rated maximum current ; principal dimensions for meter terminal cover for single - phase meters

    安裝在最大額定電流可達60 a的無儀表變壓器模壓絕
  5. Electricity meters - alternating - current single - phase static watt - hour telemeters of accuracy class 1 or 2

    電表.精確級為1或2的交流單相靜態瓦時遙測計
  6. On the railway of electrization, power supply mode is requested to be the single - phase alternating current

    在鐵道電氣化牽引區段，牽引供電網採用單相工頻交流電供電方式。
  7. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  8. An integrative device of single - phase grounding line selection and grounding current compensation in distribution network

    配電網單相接地選線和接地電流補償一體化裝置
  9. The reasearch about both function device of compensate and line selection about single - phase grounding capacitire current for small current grounding system

    小電流接地系統單相接地電容電流補償與選線雙功能裝置的研究
  10. Basically learn dc, alternating current way, lighting circuit, distribution circuit, transformer of odd, three - phase, dynamo job principle reachs operation method, the principle maintenance of electromotor of single - phase, three - phase reachs application, low - pressure electric equipment, electric power procrastinates move, electromotor maintains skill, brilliant brake canal can accuse rectification, electrical engineering appearance, the electron controls a technology, circuit of new light source, engine, principle of distribution ark job and installation technology

    主要學習直流、交流電路，照明電路，配電電路，單、三相變壓器，發電機工作原理及操作方法，單相、三相電動機的原理維修及應用，低壓電器，電力拖動，電動機維修技巧，晶閘管可控整流，電工儀表，電子控制技術，新光源電路，發動機，配電櫃工作原理及安裝技術等。
  11. This type of combined transformer consists of two single - phase all - insulated voltage transformers and two current transformers, divided into two types ? oil - immersed type and dry type, its primary and secondary outlet terminals are led out respectively through insulating porcelain jacket, outside the transformer tank there is equipped with electric meter box, which can be installed integrally with the combined transformer or hung up separately

    本型組合互感器是由兩臺單相全絕緣的電壓互感器和兩臺電流互感器組合而成，分油浸式和乾式兩種結構，其一、二次出線端子分別通過絕緣瓷套引出，箱體外側配置電表箱，可與組合互感器一體化安裝，也可獨立懸掛安裝。
  12. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷，更將故障定位在故障線路最小故障區段。
  13. By studying traditional instantaneous power theory in single - phase circuit, we developed a real - time detecting method in this paper based on digital technology, which can detect harmonic current and fundamental reactive current in both single - phase and three - phase circuits

    本文通過對于單相電路瞬時功率理論的分析研究，提出了一種基於數字技術的單相和三相電路諧波和無功電流的實時檢測方法。
  14. Different power circuits and control strategy of the single phase inverter in parallel condition are first analyzed, and half - bridge inverter is selected as the power circuit and current hysteresis control is selected as the control strategy

    本文首先對單相逆變器的主電路結構和控制電路的結構在並聯條件下進行了比較分析，最後選用了半橋結構的主電路和內環為滯環控制的瞬時電壓電流雙閉環反饋控制方式。
  15. At that time, westinghouse single - phase systems employed 133 - cycle current so customers would not see their incandescent lamps flickering

    然而，那時西屋的單相系統用的是133赫茲的電流，這樣顧客才看不出白熾燈在閃爍。
  16. 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。
  17. So it can be used for single - phase fault identifying. this paper discusses the size of the negative current and the method of analyzing it. numeral simulation shows the feasibility of it

    由於負序電流在故障線路和非故障線路上具有顯著差異，故本文也研究了將負序電流作為故障特徵量的可行性。
  18. Automatic compensation of single - phase current capacitance

    單相接地電容電流的自動補償
  19. Railway applications - fixed installations - particular requirements for a. c. switchgear - measurement, control and protection devices for specific use in a. c. traction systems - single - phase current transformers - single - phase current transformers

    鐵路設施.固定裝置.交流電開關的專門要求.交流牽引系統特殊使用的測量控制和保護裝置.單相電流變壓器
  20. Railway applications - fixed installations - particular requirements for a. c. switchgear - part 3 - 2 : measurement, control and protection devices for specific use in a. c. traction systems - single phase current transformers

    鐵路設施.固定裝置.交流開關裝置的特殊要求.第3 - 2部分:交流電牽引系統專用的測量控制和保護設備.單相電流互感器
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