step-down transformer 中文意思是什麼

step-down transformer 解釋
降壓變壓器
  • 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 ...
  • down : adv （downmost）1 向下（面）；下，降；在下（面）。 come down 下來；下（樓）來；（雨等）落下。 The...
  • 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. A step-down transformer has a turns ratio less than 1.

    降壓變壓器的匝數比小於1。
  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. 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。
  4. 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。
  5. 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 。
  6. 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。
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