step transformer 中文意思是什麼

step transformer 解釋
分級變壓器
  • step : vi （ pp ）1 走；跨步。2 踩，踏上 （on）。3 跳舞，輕快地走，合著步調走。4 跨入，踏進。5 走上。vt ...
  • 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. The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation

    二、在高頻變壓器原邊，當開關管接收控制信號脈沖列（經調制的spwm波列）導通時，在低頻調制信號的正半周或負半周內，施加在變壓器繞組上的是同一方向的電壓，變壓器磁芯中的磁通可能將級進地逐漸增加，導致磁芯飽和，造成磁偏或單向磁化，導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。
  2. A step-down transformer has a turns ratio less than 1.

    降壓變壓器的匝數比小於1。
  3. Computation of losses in step - lap laminated transformer cores

    變壓器階梯接縫鐵心的損耗計算
  4. A step - down transformer has a turns ratio less than 1

    降壓變壓器的匝數比小於1 。
  5. A step - down transformer can reduced a voltage to whatever value is desired

    降壓變壓器能把電壓降到所需的任何值。
  6. As the step - down transformer has no load when the scr is turned off, the system is stable during switching. less transformers, small area the device occupies, the relative simplicity of connection are the other advantages

    這種補償方案由於在晶閘管關斷時降壓變壓器相當于空載，不存在暫態過程的不穩定問題；所用的變壓器數目少；佔地面積較少；接線相對較簡單。
  7. Powerformer is a new high voltage generator ， which use xlpe cable as stator winding instead of rectangular conductor bars ， thereby it overcome the shortcomings which the shape of these conductors results in an uneven electric field distribution with high electric field strenghs at the corners especially and prevents the output voltage of the conventional generator from exceeding about 36kv powerformer offers a direct connection to the network without the need for a step - up transformer as a consequence, there are some merits in the total plant equipped with powerformer, such as high effiency, high availability, low maintaining cost and giving less environmental impact

    Powerformer是一種新型的高壓發電機，它採用電纜代替矩形導體作為定子繞組，從而克服了矩形導體電場分佈不均勻，特別是在矩形導體在導體拐角處電場過于集中而使常規發電機的輸出電壓等級不能高於36kv的缺點，使其能夠直接和輸配電網相聯，這樣就不需要升壓變壓器，同時也使裝配powerformer的電廠具有如下優點高效率、可利用率提高、維修費用降低和降低了對環境的負面影響。
  8. Then the paper uses the same typical four network operating conditions as the primary given conditions and when adding one set of the parallel capacitor bank, changing the 330 / 220kv transformer tap changer position step by step to change the transformer ration, through this study methods this paper found out all the optimized combination of the tap changer position and the amount of input reactive power, also obtained four sets of the 330kv, 220kv and hokv s / s bus voltage and the active and reactive power losses changing curves. through analyzing the optimized combination control curve and the network power flow, the paper generalizes the rules as following : the chief measure of coordinative control is inputting shunt reactor in chengxian s / s in winter time both in the planning year of 2010 & 2005 ; in summer time in planning year of 2010 the chief measure is to input proper shunt capacitor

    本研究通過分析所獲得的最優綜合控制組合曲線及電網潮流，總結出了如下規則：隴南電網在2005年及2010年冬大、以及2005年夏小運行方式下，綜合控制應以成縣變投入適量並聯補償電抗器作為主要措施；在2010年夏小運行方式下則投入適量並聯補償電容器作為主要措施，再輔助以選擇合適的主變有載調壓分接頭來調節，達到控制網內無功潮流分佈合理、各變電站母線電壓在理想的范圍內時電網有功損耗最小，從而也提高了電網安全運行水平及供電質量。
  9. As an example, the paper presents the design of static adjustable reactive compensation with step - down transformer for ying shuiqiao traction substation ( tsc ), the design of the over compensatuion of dynaminc state imbibe system during no travelling crane ( tsr ), it did synthesis optimize of the mostly equipments " technology parameter, at the same time did the analysis and evaluation in the base of colligate control strategy using computer emulate

    在對包蘭線的迎水橋變電所進行了模擬試驗的基礎上，制定了綜合控制策略，把裝置實際應用於該變電所，裝置的實際運行情況表明：補償效果好，功率因數提高到0 . 94 。
  10. Using compressed air and transformer oil as working substance, this paper studied the pressure characteristic of internal - mixing nozzle and acquired the experimental relation on the pressure in the mixing chamber of internal - mixing nozzle against the operation parameters and structure parameters according to the method of step by step regression

    摘要以壓縮空氣和變壓器油為工質對內混式介質霧化油噴嘴的流量特性進行實驗研究，並通過逐步回歸分析的方法獲得了內混式介質霧化噴嘴油、氣流量系數與運行及結構參數的實驗關系式，可供設計使用部門參考。
  11. Based on the analysis of the paper, we can draw the conclusion that this device has several issues to be solved to put into use, such as low filtering capacity, large bulk and area the device occupies, complexity of connection, and the hazard of ferro - resonance existing when switching without disconnecting the circuit of the step - up transformer

    經過分析發現，這種補償方案存在一些問題，如濾波能力低，補償裝置體積大，佔地面積多，接線復雜；並且如果在投切過程中不將升壓變壓器高壓側迴路斷開，存在著發生鐵磁諧振的危險。
  12. This paper mainly discusses a control method of substation voltage and reactive power. in order to get suitable decision for one day 24 hours tap - transformer ' s step switch and shunt capacitor switch, an approach of substation voltage and reactive power control on the basis of the combination of artificial neural network ( ann ) reactive power forecasting and evolutionary programming optimal decision - making is put forward

    論文主要研究變電站的電壓/無功控制決策問題，為了確定一天24小時內合適的有載調壓變壓器分接頭位置和並聯電容器投切狀態，提出一種基於人工神經網路的無功負荷預測和進化規劃優化決策相結合的變電站電壓和無功的綜合控制決策。
  13. It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time

    晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。
  14. The clean data transformer operates on specified data columns of the source table that your step accesses

    Clean data轉換器操作源表中步驟所訪問的特定數據列。
  15. Comparing with conventional electromagnetic transformer, piezoelectric transformer has many advantages such as compact volume, high step - up ratio, non - flammability and none - electromagnetic pollution, which is an indispensable part in the electronic information system

    壓電變壓器相對于傳統的電磁變壓器具有體積小、重量輕、升壓比高、不易燃、無電磁污染等特點，較好的解決了電磁壓電變壓器體積大、電磁污染嚴重等缺陷，是電子信息系統中不可或缺的重要部件。
  16. The choices of parameters of transformer, secondary output voltage, maximum output current, capability, voltage regulating progression and step voltage are the crucial factors, which determines the degree of lw graphitization process

    內串石墨化工藝的關鍵設備是變壓器，變壓器的參數：二次輸出電壓、最大輸出電流、容量、調壓級數、級差電壓選擇的合理與否，決定了內串石墨化工藝水平的高與低。
  17. The technical step for reducing the secondary voltage loss of the voltage transformer

    降低電壓互感器二次壓降的技術措施
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