three-phase transformer 中文意思是什麼

three-phase transformer 解釋
三相變壓器
  • 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，...
  • transformer : n. 使變化的人[東西]；【電學】變壓器；變換器；互感器。 polarity of transformer 變壓器繞線方向。
  1. Watthour meters for instrument - transformer connection ; main dimensions for three - phase meters

    儀表和傳感器連接用的電度表.三相電表的主要尺寸
  2. This paper presents a three - phase harmonic power flow algorithm using phase components and back - forward sweep method to solve the disconvergence when the three - phase transformer harmonic model was used. the example result presented the method was feasible and

    本文針對在進行三相諧波潮流演算法時因引入三相變壓器諧波模型而可能導致計算結果不收斂問題，提出了諧波潮流計算的相分量法，其中引用了前推-回代法。
  3. Three - phase dry - type distribution transformers 50 hz, from 100 to 2500 kva with highest voltage for equipment not exceeding 36 kv - determination of the power rating of a transformer loaded with non - sinusoidal current

    小於36kv設備的最高電壓值為50hz 100 - 2500kva三相干式配電變壓器.負載非正弦電流的變壓器額定功率的測定
  4. Three phase oil - immersed distribution transformers, 50 hz, from 50 to 2500 kva with highest voltage for equipment not exceeding 36 kv - determination of the power rating of a transformer loaded with non - sinusoidal currents

    小於36kv設備的帶有最高電壓值50hz 50 - 2500kva三相油浸式配電變壓器.載有非正弦電流的變壓器額定功率測定
  5. 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。
  6. 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。
  7. 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。
  8. Three - phase oil - immersed distribution transformers 50 hz, from 50 to 2500 kva with highest voltage for equipment not exceeding 36 kv. part 4 : determination of the power rating of a transformer loaded with non - sinusoidal currents

    最高電壓不超過36 kv的設備用50 hz 50至2500 kva三相油浸配電變壓器.第4部分:加載非正弦電流的變壓器功率額定值的測定
  9. 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。
  10. 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。
  11. 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。
  12. Connection skill for three - phase transformer terminal group

    三相變壓器接線組別的連接技巧
  13. The principle of ac - dc - ac locomotive is that transformer transforms the high single - phase ac voltage from contact system to lower ac voltage first, then rectifier transforms this ac voltage to steady dc voltage, finally converter transforms this dc voltage to three - phase vfvv ac voltage as the voltage source for asynchronous machine

    交?直?交型電力機車系統的原理是：先將從接觸網獲得的單相交流高電壓經變壓器降壓后，再經整流器變換為平穩的直流電壓，直流電壓經逆變器變換為三相交流電壓，供給機車輪對上的牽引電機。
  14. The three - phase to four - phase transformer with a four - phase four - leg structure solves the problem. the windings on each leg of this transformer are not more than three

    這種變壓器每相鐵心柱上的繞組不超過三個，是不等相變換的最簡單形式。
  15. Application of transformer connections in three - phase distribution systems

    三相配電系統變壓器連接申請
  16. Guide for the application of transformer connections in three - phase distribution systems

    三相配電系統變壓器連接應用指南
  17. The key equipment of four - phase power transmission systems is a three - phase to four - phase transformer and the inverse transformer

    四相輸電系統應用的關鍵設備是三相變四相及其逆變電力變壓器。
  18. Principally, when the winding - connection scheme is adopted to add a set of auxiliary windings on the two - phase side of a balance transformer, we can get a three - phase to four - phase transformer

    原則上，在平衡變壓器的兩相側採用增加一套副繞組的雙重接線方案，便可得到三相變四相電力變壓器。
  19. Analysis on asymmetric operation of three - phase transformer

    三相變壓器不對稱運行的分析
  20. When a smoothing function ' s first derivative is adopted as wavelet function, the local maxima of wavelet transform modulus detect the location of signal ' s singularities, in this thesis, these characters are not only applied to measure the magnitude of dead angles of the dissymmetry inrush but also the symmetry inrush in three - phase transformer

    當小波函數取光滑函數的一階導數時，信號小波變換的模在信號突變點將取得局部極大值。本文利用這些性質不僅對三相變壓器的非對稱性涌流間斷角的大小進行測量，同時還測量了對稱性涌流的間斷角，測量精度有一定的改善。
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