線路電流計 的英文怎麼說

中文拼音 [xiànlùdiànliújì]
線路電流計 英文
line current tester
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter, and the excitation voltage are chosen to be control variables. the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs. then a nonlinear controller is designed for the system under study according to direct feedback linearization theory

    以整流側觸發延遲角的調節信號、逆變側觸發超前角的調節信號以及發電機勵磁電壓作為控制變量，以直流線路電流、逆變側關斷角以及發電機功角的偏移量作為目標輸出，用直接反饋線性化方法設計了系統的非線性控制器。
  2. 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。
  3. The development of a visual short circuit software under ptcad2000 is presented in this paper, as well as the system structure, the definition of the data structure, the interface to ptcad2000, the conversion of the original wiring diagram of power network to calculable power network, the implement of three sequence network, the implement of impendence matrix and admittance matrix of power network considering the zero sequence mutual inductances among lines, and the implement of short circuit calculation by using computer

    本文介紹了在ptcad2000平臺下短路電流可視化計算軟體的開發。介紹了軟體的系統結構、數據結構定義、與ptcad2000平臺的介面、電力系統原始接線圖轉成等值可計算網路、序網的生成、考慮零序互感線路阻抗時電網導納矩陣和阻抗矩陣的生成，以及故障點短路電流計算的計算機實現。
  4. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。
  5. Upon existent theoretical and experimental results and based on a great of laboratory investigations carried out in chongqing university, for the first time this paper studies systematically the insulators dc discharge performance and flashover mechanism of iced insulators in the complex atmospheric environment, which will contribute to the understanding of flashover phenomena observed on ice surface at low air pressure and provide the test and theoretical reference for hv and ehv transmission lines design and safety service

    為此，在國內外現有工作的基礎上，通過大量的試驗研究，本文主要研究了復雜環境中絕緣子的直流閃絡特性及閃絡機理。其結果有助於進一步了解低氣壓下覆冰絕緣子的閃絡現象，並可為輸電線路的設計和安全運行提供理論依據。
  6. Some of the important problems, such as low - power detecting and watch - dog circuit, daul - wire converter, communication between microcontroller and pc are described in detail

    針對其中幾個重要部分，如系統低電位檢測及看門狗電路、雙線制電流變送器的設計、單片機與上位pc機的通信等進行了較為詳細的論述。
  7. A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. the process of building the z - matrix of a large - scale power network is set forth in particular in this paper. and the method is employed in the fault computation system successfully

    本文為了從演算法上提高故障計算的速度，在完全計及支路互感的前提下，利用節點注入電流與支路電流以及支路電流與節點電壓的關系，提出了一種能夠統一處理互感和無互感線路、快速形成大規模電網節點阻抗矩陣的新方法。
  8. Compared with the traditional curve - based method, this method can calculate the currents with high accuracy and little user effort. it can automatically calculate the periodic components of varying short circuit currents at anytime, and the aperiodic components of the symmetric short circuit currents

    該計算機演算法大大減輕了傳統運算曲線演算法的工作量，且具有較高的準確度，能夠自動完成系統短路時任意時刻電流衰減周期分量的求解，及對稱短路時短路電流非周期分量的求解。
  9. The basic software consists of topology analysis, on - line load flow computation, state estimator, security analysis, dispatchers training simulator, short circuit current computation, and voltage / reactive power optimize, etc. the derived softwares consist of load control, capacitor optimizer configuration, transformer and feeder load distribution, impedance computation of generator, etc. network analysis software is powerful dispatch tool, though witch the current state of the power system can be realize, then improve the security and economic potential

    Dms網路分析的基本軟體有：網路結線分析、潮流計算、狀態估計、負荷預報、短路電流計算、電壓無功優化等。派生軟體有：負荷控制、電容器優化配置、變壓器與饋線負荷分配、電源阻抗計算等。網路分析軟體是有力的調度工具，通過它可以了解和掌握當前的運行狀態，從而挖掘安全和經濟方面的巨大潛力。
  10. In the condition of lab, for the device of power supply that based on special ct, the experimental results showed that the circuit of power supplies can supply thepower above 400mw for the high potential circuit of ect when the current in linechangefrom6ato900a. thedeviceissomepracticality

    設計製作的小ct供電裝置，實驗室條件下的實驗結果表明，採用小ct在線供電方案在線路電流從6a到900a的范圍內變化時，能為高壓側電路提供不少於400mw的功率，基本滿足設計的要求，具有一定的實用價值。
  11. As an essential component of dms, the system will supplement itself in the following aspect, short circuit current calculation, theoretical losing, voltage / reactive power optimize, state estimation, load forecast, etc

    本軟體平臺是dms的重要組成部分，下一步將加入短路電流計算、理論線損計算、電壓無功優化、狀態估計、負荷預報等功能。
  12. In order to supply the main two services ? vod ( video on demand ) and iptv which are used popularly in the application, 8010r & d designed a new streaming media system based on our new operating system named digital organic system ( dos ) with high dependability, high concurrence, low - price - high - efficiency and high retractility as its characters. in our stream media system, there are three important components

    當前政府正在大力推廣internet及寬帶網路，加之正在興起的網路電視計劃，這些因素極大的推動了網路流媒體業務的迅速發展。針對目前流媒體應用最廣泛的視頻點播和在線直播服務， 8010實驗室自主研發了具有高可靠性、高並發性、高性價比及高伸縮性的數字有機體流媒體播放系統。
  13. At first, the dissertation author analyzes the measure method characteristic of three - phase three - line system and three - phase three - line system by power measure principle, and analyzes all kinds of power theft way, then concluding them to five styles : voltage style, current style, change phase style, enlarge error style, shunt style

    論文從電能計量原理和準確計量方法入手，簡要介紹了電能計量的發展歷史，單相電路和三相電路的各種計量方式。其中重點介紹了三相三線經電流互感器和電壓互感器接入式和三相四線只經電流互感器接入式這兩種計量方式。
  14. On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully

    高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。
  15. Secondly, the following two subjects are discussed according to the calculation of short - circuit current : ( l ) to verify the dynamic stability condition of wires by using simulated annealing algorithm ( sa ), the paper calculates the maximum value of rectangle wires " short - circuit electrodynamic stress and gets the conditions of their having the maximum value. furthermore, some concerned data about the verifying of copper wires are given by analysing vibration spectrum of the electrodynamic stress ; ( 2 ) in order to get the heat withstand conditions of wires, the paper discusses some common calculation methods, and then tries to study the problem applying artificial neural network ( ann ) based on heat principle of metals. the model is shown to be feasible

    其次，在電路中短路電流計算的基礎上， （ 1 ）進行母線的短路動穩定校驗計算：採用模擬退火演算法（ sa演算法）計算了矩形母線短路電動力的最大值及其取極值的條件，獲得了更為一般的結果，進而通過短路電動力的頻譜分析，給出了銅質母線的有關短路校驗計算數據； （ 2 ）進行母線的短路熱穩定校驗計算：討論了熱穩定校校的幾種常用計算方法，從導體或電器的發熱機理出發，運用人工神經網路理論對母線的熱穩定問題進行計算，通過算例比較，證明該方法用於熱穩定計算是可行的。
  16. Specifically analysed and presented the common - mode differential input stage, linear transconductance control circuit of input stage, current sum circuit, floating ab - class control output stage, the bias circuit of op amps and the bandgap reference current source circuit

    具體對運放的共模差分輸入級、輸入級線性跨導控制電路、電流和電路、浮動ab類輸出級電路、運放的偏置電路和帶隙參考電流源電路進行分析設計。
  17. Using the high - performance digital signal processor ( dsp ) as cpu, the author designs the medium - speed sampling and processing unit of the fault locator. on the one hand, this unit can sample voltages and currents of the line synchronously ; on the other hand, this unit can start the fault locator up and select the fault lines when faults occur

    本文作者還以高性能的數字信號處理器（ dsp ）為cpu設計了測距裝置的中速采樣處理單元，該處理單元一方面可以實現線路電流電壓信號的同步數據採集，另一方面可以完成測距裝置的故障啟動和故障選線任務。
  18. They are conflict. in order to resolve the problem, this thesis putforward a new scheme of power supply by special ct with compensate function. analyzed the principle, and designed the structure. in order to reduce the start - upcurrent, there are some devices optimize for the circuit

    為了協調兩者的矛盾，本文提出了一種帶有補償功能的特製小ct供能方案，對其基本結構和工作原理進行了分析，針對線路處于小電流工況，設計中採用多種優化以盡量降低電源的啟動線路電流。
  19. A sensing magnetic field and displacement type of giant magneostrictive microdisplacement actuator with the functional of sensing driving magnetic field and microdisplacement is developed, and the design theories and approaches being applicable this type of microdisplacement actuator are pointed out : a circular diaphragm type of flexible construction that acts as integration mechanism of microdisplacement transferring and sensing of giant magnetostrictive microdisplacement actuator is adopted, sheet flexure theory of elasticity mechanics and approach of finite element are applied to design and calculate it, corresponding deflection and analytic formula and distribution curve of stress are given, and the specific achieving approaches of measuring principle and magnetic field sensing function of driving field in giant magnetostricitive rod are pointed out the magnetic field sensing function of the actuator is used to practically measure driving magnetic field of actuator and to obtain the relationship of driving magnetic field and coil current, which is also analyzed and studied

    其中，採用圓形膜片式柔性結構作為超磁致伸縮微位移執行器的微位移傳遞、感知一體化機構，應用彈性力學中的薄板彎曲理論、有限元方法對其進行了設計、計算，並給出了相應的撓度和應力解析式及分佈曲線；應用電磁理論給出了超磁致伸縮棒內驅動磁場的測量原理及磁場感知功能的具體實現方法，並利用執行器的磁場感知功能對其驅動磁場進行了實際測量，得出了驅動磁場與線圈電流之間的關系，並對其進行了分析和研究；對執行器內部的電磁路和偏置磁路結構進行了設計計算與實驗研究，為了減小驅動線圈的發熱，對其形狀進行了優化設計。
  20. Then the high potential circuit power supply of ect is reasearched, designed a scheme of power supply by laser, introduced the key part, and reasearchedthe circuit of protecting. the emphases of researchis the scheme of power supply by aspecial ct, but this scheme have two difficult, in the condition of low current inline, the device must work normally

    然後對有源型ect的供能電路進行了研究，設計了激光供能的整體方案，對其中關鍵器件和保護電路進行了介紹和研究。本文重點研究了小ct供能這一在線供能方式，此方式有兩個難點，其一:當線路電流處于小電流狀態時，要保證電源的供應。
分享友人
分享到 Line

分享到臉書