three-phase power supply 中文意思是什麼

three-phase power supply 解釋
三相電源
  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • 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，...
  • power : n 1 力，力量；能力；體力，精力；（生理）機能；〈常 pl 〉才能。2 勢力，權力，權限；威力；政權；權...
  • supply : vt （ plied） 供給；供應；配給；補充，填補，彌補（不足、損失等）。 Cows supply us （with） milk ...
  1. Single or three phase at nominal low voltage are required to be inspected, tested and certified at least once every five years. examples of such installations are power supply to lifts, water pumps, public lightings and other communal services in the common area of domestic premises and fixed installations in offices etc. having total loading exceeding 100 amperes, single or three phase

    （單相或三相）時，該裝置須每5年最少作一次檢查、測試及領取證明書。這類裝置包括住宅樓宇內升降機、水泵、公共照明及其他公用設施的供電裝置，辦公室內的固定裝置等，其總負載量超逾100安培（單相或三相） 。
  2. The series genrating set combination of single and three phase brushless generator 、 control panel 、 common base produced by liuzhou jiali electric manufacturing co. ltd and engine produced by nanning machine factory ( abbreviation : nanji ) 、 changzhou engine co. ltd ( abbreviation : changfa ), which appears small size 、 light in weight 、 easy to start 、 low in fuel consumption and noise production with stale voltage and frequency output. it is an ideal power supply for banks 、 post office 、 public places of entertainment 、 households and pasturelands, so on

    本系列機組由柳州佳力電力電工有限責任公司生產的單相無刷發電機、控制箱及公共底座與南寧機械廠（簡稱南機） 、常發集團（簡稱常發）等柴油機廠生產的柴油機組成，具有穩定的電壓和頻率輸出及體積小、重量輕、啟動方便、油耗低、噪音低等特點，充分地體現了高性能、高質量發電機所應具備的要素，是銀行、郵局、娛樂場所、家庭及牧場等的理想電源。
  3. This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop

    電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。
  4. Three phase ac reactive power display control instrument ; single screen digital display ; outline dimension 16080mm ; no communication interface ; no transmit output ; three - phase four - wire system connection mode, high limit alarm low limit alarm ; switch power supply ; input voltage 0380v ; input current 05a, display reactive power 0114. 0k var

    三相交流無功功率顯示控制儀:單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0 380v ，輸入電流0 5a ，顯示無功功率0 114 . 0kvar ，
  5. Three phase ac active power display control instrument ; single screen digital display ; outline dimension 16080mm ; no communication interface ; no transmit output ; three - phase four - wire system connection mode ; high limit alarm low limit alarm ; switch power supply ; input voltage 0380v ; input current 05a ; display active power 0114. 0kw. 2. wp - le3q - c2004hlt 380v 380v, 100a 5a

    三相交流有功功率顯示控制儀單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0 380v ;輸入電流0 5a ;顯示有功功率0 114 . 0k w 。
  6. The engineer of the electric power science academy tested the harmonic occurred in 220kv transformer substation in baishiyan 、 110kv transformer substation in nantupo 、 110kv transformer substation and converting station in 821 factory. this article analyzed these data particularly. the three - phase commuted device of 821factory is one of the main harmonic in the power supply & transmit electricity system in guangyuan

    四川電力公司諧波監測站對廣元電業局所屬的袁家壩220kv變電站、白石巖220kv變電站，新廣興220kv變電站，懶土坡110kv變電站，廣興鋁廠110kv變電站，八二一廠110kv變電站及整流站進行了諧波測試，本文對其測試結果作了較為詳盡的分析。
  7. Gb1094. 5 - 85 power transformers part 5 ability to withstand short circuit only applies to power transformers, not to balanced transformers. if short - circuit test on balanced transformers can be performed by means of single phase supply instead of three phase supply, and other special transformers can also be done in this way, so it is very significant to improve test capacity of transformer laboratory in our country

    變壓器的短路強度只能通過短路試驗來驗證，國家標準gb1094 . 5 - 1985 《電力變壓器第5部分承受短路的能力》只適用於電力變壓器，對平衡變壓器等特殊變壓器並無具體規定，對于平衡變壓器，如果可以用單相電源預先短路法模擬三相電源的短路試驗，那麼其它特種變壓器的短路試驗也可以參照進行，這對提高我國變壓器試驗室的試驗能力具有重要意義。
  8. Choose the cable type according to power supply condition and power net load, decide if use parallel connection or series connection type cables, single phase or three phase type cables

    根據供電條件、電網負荷及電伴熱帶使用長度等因素來選擇電伴熱帶的型式、電壓等級，以便確定是用並聯式還是串聯式？
  9. A novel high - power pollution - free smps is presented in this paper, which accomplishes simultaneously the goal of soft - switching pwm, the input / output isolation, the output voltage regulation and three - phase pfc with a single - stage power processor and simple pseudo - phase - shift control circuit. therefore, compared with the normal two - stage system, the single - stage power supply has simpler structure, lower cost, higher efficiency and easier to control. the proposed smps can be used in the three - phase power system, and can output high power over kw - order and input / output ( i / o ) isolation dc power supply

    本文提出的新型無污染大功率開關電源正是採用三相三線制輸入電源，利用單級偽相移零電壓零電流開關脈寬調制（ pps - zvzcs - pwm ）全橋變換器完，成功率因數校正（ pfc ）和輸出電壓快速調節、隔離的雙重功能，並且該變換器開關管在零電壓或零電流下通斷，顯著的減小了emi 。
  10. Tri - phase ac current display control instrument ; three screens digital display ; outline dimension 80160mm ; rs - 485 standard serial communication ; tri - phase high limit alarm ; switch power supply ; input current 05a ; display 0100a

    三相交流電流顯示控制儀：三屏數字顯示外形尺寸80160 rs - 485標準串列通訊三相上限報警開關電源供電輸入電流05a ，顯示0100a 。
  11. A set of ac power - supply circuits ( usually three ) carrying currents of equal frequency with uniformly - spaced phase differences

    一組頻率相同，相位彼此相差均勻的交流供電電路（一般是三相） 。
  12. The control nuclear of this system is base on the single chip micro - comupter, and use the fuzzy control, transform the dc voltager - stabilzed power supply based on simulate component into a digital one. in this paper, it discussed the theory of three - phase half control ; design the fuzzy controler ; used the fuzzy control in this system

    由於目前的直流電源櫃由模擬電路實現，硬體電路復雜、元器件易老化、存在溫漂和抗干擾能力差的缺點，因此提出了單片機模糊控制晶閘管直流調壓系統的課題，對直流電源櫃進行改造，支持電站系統的工作。
  13. In chapter three, based on the analysis of the restricted factor of high frequency and the latest research achievements, it puts forward and designs the integrity structure of phase shifting pwm soft switching high voltage invert power supply. the main circuit, driving circuit and high voltage high frequency transformer are discussed in detail in this chapter

    在分析了限制逆變電源高頻化因素的基礎上，綜合了軟開關技術的最新研究成果，本文在第三章提出並設計了移相式pwm軟開關高壓逆變電源的整體結構，對其中的主電路、驅動電路、保護電路和高壓高頻功率變壓器作了詳實的分析與設計。
  14. Three - phase scr controlled rectification power supply has been widely used in the high power industry area. the key control elements of trigger and regulator are hotspots of research in power electronics field

    三相晶閘管可控整流電源廣泛應用於大功率工業控制領域，其中的核心控制環節觸發器和調節器的設計是電力電子領域的研究熱點。
  15. Constant stator magnetic linkage control frequency converter includes power devices utilizing igbt, drive circuit using three - phase drive ic with multiple protection functions. pwm signal formation circuit in the way of voltage space vector control and realized with pld ( programmable logic device ) devices and compensation for the influence of supply voltage variation and stator resistance voltage drop

    其中，恆定子磁鏈控制變頻器的設計中主電路採用功率器件igbt ；驅動電路採用三相多功能集成驅動晶元； pwm脈寬調制信號產生電路採用電壓空間矢量控制方式，由pld器件實現；對電源電壓變化及電阻壓降造成的影響進行了補償。
  16. Design of three - phase sinusoidal frequency conversion power supply based on msp430f

    建立內壓循環下自增強殘余應力鬆弛規律的灰色優化模型
  17. The design of on - line three - phase input and output variable frequency uninterruptable power supply

    在線式三進三出交流變頻不間斷電源的設計
  18. This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter, it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually, it also can realize three phase ac output by the combination of three synchronous inverters, experiment proved it in this way has a stronger ability of resisting three phase unbalance load

    本文提出了一種基於獨立正弦波逆變器的功能之上復合其他功能而成的多功能通用逆變電源系統的實現方法，此系統不僅可以作為獨立逆變電源使用，還可以與電網電壓的相位同步，作為后備式正弦波ups使用，在逆變電源和電網的相互切換時能做到對負載無影響，同時還可以由三臺逆變器進行組合自同步實現三相對稱交流輸出，實驗證明這種方式具有較強的抗三相不平衡負載的能力。
  19. Three - phase full bridge controlled rectifier, filter circuit and the common loads " mathematics models are built and analyzed. according to the rate of the transition process, the controlled rectification power supply can be classified into fast response and slow response. based on identification of the transition processes using the slope method, the different fuzzy control strategy is adopted. the control method can meet the requirements of real time control and non - error regulation. the simulation results verify its practibility. after that. the design scheme based on dsp is introduced including the design of hardware and software flow chart. emc is an important aspect which can not neglected, so the designs of emc are summarized including hardware and software

    根據過渡過程的快慢將可控整流電源系統分為快響應過程和慢響應過程，本文在利用響應曲線斜率法辨以過渡過程的基礎上，分別針對快響應過程和慢響應過程採取了相應的模糊控制策略，以滿足快響應過程要求實時控制，快速跟蹤誤差變化，慢響應過程要求精確定位，無差調節的要求，模擬結果驗證了該方法的有效性，進而分析了用dsp實現該調節器的硬體電路和軟體流程的設計思路。
  20. To resolve this problem, this dissertation author researches deeply and makes two preventing power theft devices which be used in three - phase power supply system including three - phase three - line system and three - phase three - line system

    針對這種情況，本論文作者針對三相供電系統中竊電及其檢測技術進行了詳細研究並研製了三相四線和三相三線計量防竊電裝置。
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