無壓開關 的英文怎麼說

中文拼音 [wúyākāiguān]
無壓開關 英文
no-voltage cut-out
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 壓 : 壓構詞成分。
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  1. Breaker, refrigerator over - load protection relay, refrigerant high pressure switch, air circulator thermal switch, fuse, overheat protector, alarm

    無熔絲開關，壓縮機超載保護開關，冷媒高壓保護開關，超溫保護開關，水盤缺水保護開關，電磁開關，故障警告系統，警報器
  2. The functions of this automation system focus on five aspects : data acquisition 、 supervision and control 、 fault isolate and recovery 、 gis 、 data statistic and report. the design project takes the rcs - 9000 series 、 sd ? 9520 and sd - 9630, which is a new installation that can detect the operation state of the low - voltage current breaker, and send the state to the control room. the other new installation is sd - 9860, which is the monitor of the cable fault

    設計方案中，在採用南瑞rcs - 9000系列、雙電公司sd - 9520裝置的同時，採用了新開發的sd - 9630塑殼開關運行狀態採集裝置，檢測塑殼開關的運行狀態，並將運行狀態傳回到集控中心（中間站） ；採用了新開發的sd - 9860電纜故障指示器，完成電纜故障的識別；集控中心的設計實現了整個小區配電自動化系統的集中通訊、實時監控、統計與管理功能；高、低壓開關實現了自動控制、狀態檢測和無功補償等。
  3. Exchange non - clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard, vacuum switch etc

    交流無間隙金屬氧化物避雷器，適用於變壓器、配電屏、開關櫃、真空開關、輸電線路、電力計量箱、並聯補償電容器、旋轉電機等電壓保護。
  4. Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning

    第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。
  5. 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。
  6. High voltage shunt capacitor installation is comp - rised of capacitor cabinets or steel racks capacitor, special fuses for capacitor overload protection, capaci - tor discharge device, air - cored reactor which is applied to restrain surge current and high frequency harmonic, zno arrester without gaps for overvoltage - limiting and high voltage vacuum switch etc. capacitor cabinet is

    高壓並聯電容器成套裝置主要由電容器櫃或鋼架電容器電容器過負荷保護專用熔斷器放電裝置專用放電線圈或電壓互感器，抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關
  7. The control tactics of space voltage vector are investigated, and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward. by analyzing the current hysteresis control, the relation between switch frequency, and hysteresis bandwidth and input inductance of pwm rectifier is deduced. by applying instantaneous power theory, the principle of pwm rectifier power control is analyzed, and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized, and the simulation results prove that it is correct

    對常用空間電壓矢量控制策略進行分析，提出了給定參考矢量所在區間判斷的簡化方法，以及電壓矢量作用時間的求取方法；分析了電流滯環控制策略，推導出開關頻率與滯環帶寬以及整流器輸入電感之間的關系；應用瞬時功率理論分析pwm整流器功率控制原理，通過虛擬磁鏈估計有功功率和無功功率，用matlab實現了直接功率控制，並驗證了該控制方法的正確性。
  8. The use of time delays on these vehicles helps to eliminate transmission and motor damage by providing even and controlled acceleration. the delay is adjustable between 0 to 5 seconds and can be wired independently of other delays or alternatively these delays can be wired in cascade so that it is necessary for the first delay to switch on before the following commences timing etc. suppression is included in the delay circuit to prevent damage by voltage transients

    延遲開關可以調整延遲時間0 ~ 5秒，並可連接數個延遲開關來逐步控制連續動作之時間（復數連接時，第一個開關要啟動接下來的開關才會跟著動作）避免電動車起動初期之電力脈沖，達到平順的起步動作，可預防電壓無端變動造成之電路故障
  9. Wuxi, nov 18, 2007 - - on november 18, 2007, siemens medium voltage switching technologies ( wuxi ) ltd. ( smvs ) celebrates its 10th anniversary, together with the successful application of siemens world - leading 25 - years of gis ( gas insulated switchgear ) and 35 years of vi ( vacuum interrupter ) technology

    無錫11月18日消息? 2007年11月18日，西門子中壓開關技術（無錫）有限公司慶祝公司成立十周年，以及西門子全球領先的氣體絕緣開關（ gis ）和真空滅弧室（ vi ）技術也分別迎來了成功應用25周年和35周年。
  10. A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper. zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances. the output rectifier diodes commutate naturally without voltage oscillation and voltage spike

    針對傳統（半橋）三電平直流變換器的一些不足，本文提出一種倍流整流方式pwm零電壓開關三電平直流變換器，可以使開關管在全負載范圍內實現零電壓開關，副邊整流二極體無電壓尖峰，無占空比丟失。
  11. Lv switchboard, lsnh low smoke non - halogen cabling, fire pump, boost pump, fire alarm, water hammer, pressure regulation valve, 5 " brass main pipe, 2272l water tank

    車站：低壓開關箱低煙無毒電纜配置ups消防泵加壓泵火警系統水錘防止器調壓閥5 」銅質干管2 ， 272l水箱。
  12. Lv switchboard, lsnh ( low smoke non - halogen ) cabling, fire pump, boost pump, fire alarm, water hammer, pressure regulation valve, 5 " brass main pipe, 2272l water tank

    車站：低壓開關箱、低煙無毒電纜配置、 ups 、消防泵、加壓泵、火警系統、水錘防止器、調壓閥、 5 」銅質干管、 2 ， 272l水箱。
  13. Siemens medium voltage switching technologies ( wuxi ) ltd. is a joint venture established in nov. 1997 by siemens ag, germany and wuxi electronics and instruments industry corp

    西門子中壓開關技術（無錫）有限公司是由德國西門子股份公司與無錫市電子儀表工業公司於一九九七年共同投資設立的中外合資企業。
  14. The “ gw9 - 12 ” type of outdoor high voltage isolator switch is the high voltage switch ewuip ment of single phase ac 50hz, the product is suitable for power system sithrated 10kv to make or break power supply under circumstances of with voltage and nomload

    12型戶外高壓職責離開關是單相交流50hz高壓開關設備，用於10kv的電力系統中，作為有電壓無負載的情況下接通或分斷電源使用。
  15. In the field of medium voltage switch apparatus, vacuum circuit breaker has been widely used for its advantage of oil - free, miniaturized and easy access

    在中壓開關設備領域中，真空斷路器由於實現了無油化、小型化、便於檢修等優點得到了廣泛應用。
  16. The study shows that this control approach can overcome those shortages of the methods which are adopted to control voltage and reactive power in substation nowadays, it can hold the voltage level in the regular bound and maintain the balance of reactive power in substation to the greatest extent, and it have the ability to seek the best solution. adopting this methods, the switching times of loaded taps and capacitors can be decreased efficiently and advance the running life - span of the transformer and capacitors and improve the economy benefits. this control approach is a advanced way ii and it is worth to study more and utilize

    利用模糊神經網路對較好地實現對變電站的電壓、無功自動控制，能克服了目前在變電站電壓無功控制中普遍運用的分區方法存在的不足之處，不但可保持變電站電壓在合格的范圍內，盡量維持無功功率平衡，而且具有較好的尋優能力，有效減少變壓器有載調壓開關的切換次數和電容器組的投切次數，提高了變壓器和電容器的運行壽命，提高了經濟效益，是一種值得進一步探索和運用的較為先進的方法。
  17. As one of the fastest growing business units among siemens ptd ' s operations in china, smvs is playing an active role in facilitating the sustainable development of china ' s electric power industry

    作為西門子輸配電在中國發展最快的業務部門之一，西門子中壓開關技術（無錫）有限公司為推動中國電力行業的可持續發展扮演了重要的角色。
  18. However, these converters become more complicate. phase - shift bi - directional dc - dc converter is attractive since it operates with fixed frequency, has small voltage and current stress and can realize zvs without auxiliary switches

    相移控制雙向dc - dc功率變換器因具有功率器件電壓，電流應力小，定頻工作和無須增加輔助器件即可實現功率器件的零電壓開關條件等優點而受到關注。
  19. Low - voltage switchgear and controlgear assemblies - protection against electric shock - protection against unintentional direct contact with hazardous live parts

    低壓開關裝置和控制裝置組件.防電擊穿.防止無意地直接與危害生命的部件接觸
  20. The project included the train station, tunnel, platform, and parking lot. the main works are briefly described as follows : e power

    電氣： 22 . 8kv ，干線全為低壓無毒電纜，設備容量48 . 5mva高低壓開關箱共310隻
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