ac line 中文意思是什麼

ac line 解釋
交流電源線
  • ac : ＝1 air controlman 美海軍航空兵的空中交通管制員。2 alternating current 【電學】交變電流，交流電。...
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. This instrument can meter the electric level, frequency spectrum, carry to noise ratio, a / v, cobbly ratio, voltages of the ac trunk line and the battery. furthermore it can display the above information on the lcd and store them in the eprom

    該場強儀可以對有線電視系統的電平、頻譜、載噪比、 a v比、系統不平度、交流干線和電池電壓等進行測量，並通過液晶顯示，結果保存於eprom中。
  2. The drawing of ac load line in amplificatory circuit

    放大電路交流負載線的作法
  3. A dead - line operation option permits using the batteries located in the control for operation of the recloser if ac input power is lost

    失壓線路方案在不能提供操作電源的情況下，控制器的內置的電池進行操作。
  4. The elements of the reduced - jacobian matrix are functions of some parameters of the system. for example, effective short ratio, power base ratio, coupling impedance and load flow of the system. for single - infeed hvdc system with a parallel ac line, computer simulations using power system analysis software package ( psasp ) were performed

    用一種簡單的方法可以求得降階雅可比矩陣，由於降階雅可比矩陣的元素都是交直流混合系統中一些參數的代數函數，如有效短路比、功率基準比、連接阻抗和系統潮流等，因此，矩陣的特徵值也與這些參數相關。
  5. Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more

    迪揚電氣在gis和避雷器的帶電測試與故障診斷分析，電力電纜的故障定位與局放檢測，變壓器電抗器的各種測試診斷與溫度監測， sf6的水分測量與回收，絕緣油的測試分析與濾油處理，紅外測溫與光纖在線測溫，以及各種電阻測試與計量，溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。
  6. The charger automatically compensates for low ac line voltage or extension cord use

    充電器自動補償低交流線路電壓或延長線使用。
  7. With the increased use of hvdc transmission systems in power systems, situations have arisen and will be even more frequent in the future, where sigle - infeed hvdc system with a parallel ac line and several hvdc systems are located in close of each other

    隨著hvdc輸電系統在電力系統中投入越來越多，交直流並聯系統和多饋入hvdc系統正在逐漸增多。在這種情況下，交流系統和直流系統，不同的hvdc系統間都將存在相互作用。
  8. Guide for automatic reclosing of line circuit breakers for ac distribution and transmission lines

    交流配電線和輸電線用戶線斷路器自動重閉指南
  9. The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current

    傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換，導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量，功率因數變低（通常只有0 . 65 ） 。
  10. Physically, the filament minutely heats up and cools down at twice the line rate, due to ac applied to the filament

    實際上，由於加載在燈絲上的交流電，燈絲基本上是以兩倍市電頻率加熱或冷卻。
  11. Line - to - line voltage line - to - line voltage is the voltage between any two phases of an ac generator

    線電壓線電壓是指交流發電機任何兩相間的電壓。
  12. Phascon technology introduced in this paper is to improve the outer operation parameters of ac motor, by on line detecting the motor phase angle between current and voltage to adjust the input supply voltage to the motor, to realize the flexible power management mode for ac motor, so as to increase the operation efficiency and reach energy - saving purpose

    本文闡述的相控技術是從改善電機外部運行參數入手，通過實時檢測電動機運行相位角來調整電機的輸入電壓和電流大小，實現柔性化能量管理模式，提高電機效率達到節電的目的。
  13. On the contrary, because of the effect of positive damping provided by the inverter, the unit near a inveter will have no subsynchronous oscillation risk. based on the same method described above, a damping study is carried out for a hybrid ac / dc system, which include a hvdc link and an ac transmission line in parallel

    研究表明，系統整流站附近的同步發電機組要承受電氣負阻尼作用，因此有可能引起機組低頻扭轉振蕩模式失穩；而hvdc的逆變站向其臨近同步發電機組提供正阻尼，因而機組不存在次同步振蕩危險。
  14. The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different

    其中，並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度，改善hvdc的電氣負阻尼特性，從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性，此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容，則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩，逆變站附近機組同樣存在發生次同步振蕩的可能性，此時系統的整體阻尼特性由串聯補償電容的性質決定。
  15. But even at this height an overhead dc line will beat an ac line at distances more than 1, 000km ( 600 miles ), while ground - level dc will beat ac at distances as short as 30km

    但即使是這樣的高度，高架直流電纜也比交流電纜的最大傳輸距離遠1 ， 000千米（ 600英里）以上，地面直流電纜比交流電纜傳輸距離遠30千米。
  16. The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low

    傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路，其輸入電流波形呈脈沖狀，交流網側功率因數很低。
  17. Verify ac line voltage, phase and frequency with the controller data plate on the enclosure door prior to connecting ac power

    在連接交流電源之前，請驗證交流電壓、相位和頻率是否與控制裝置外殼門參數板上的相應數據相同。
  18. Ac line overlay circuit

    交流線路疊加電路
  19. This kind of firing - pulse generator may leads to uncharacteristic harmonics due to unbalance of impedance or ac line voltages, or timing errors in the control system

    我的論文工作是設計一個脈沖發生器。本文分析分相觸發方式的缺點：在三相不對稱情況下，會產生非特徵諧波。
  20. It could be a battery source ; however, in most case, the input is a diode rectified ac line voltage with a large filter capacitance, to provide a low internal impedance and low - ripple dc voltage source

    該直流電壓源可能是一個電池，然而在大多數的情形是一個經二極體整流的交流電壓再加上一個大的濾波電容，用以提供一個低內阻、低脈動的直流電壓。
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