短路電流保 的英文怎麼說

中文拼音 [duǎnlùdiànliúbǎo]
短路電流保 英文
short circuit current protection
  • 短 : Ⅰ形容詞（空間、時間兩端之間的距離小） short; brief Ⅱ動詞（缺少; 欠） lack; owe Ⅲ名詞1 （缺點） we...
  • 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...
  • 保 : Ⅰ動詞1 （保衛; 保護） defend; protect 2 （保持） keep; preserve; maintain in good condition 3 （...
  • 短路 : [電學] short; short circuit; cutting out; direct short; short out; short pass短路保護（裝置） sho...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  2. Be familiar with hv, mv and lv power distribution systems and power factor correction study & harmonic analysis, ups and dc power systems, power fiscal metering, and all necessary calculations to one project including short circuit calculation and protective device coordination study, lightning protection calculation, generator power calculation etc

    熟悉項目中的高、中、低壓配電系統和功率因素補償研究及諧波分析， ups和直流電氣系統，功率計量，相關計算（包括短路計算和保護裝置協調分析，照明保護計算，發電機功率計算等） 。
  3. This machine adopt the high - quality relay and the fleetness rectifier tube, the full - automatic short - circuit protection implement, operation nimble, use safety simplely reliably

    本機採用高品質繼電器及快速整流管，全自動短路保護器，操作簡單靈活，使用安全可靠。
  4. For the severe limitation that the selectivity of transient current protection will lose when the fault with small resistance or without resistance takes place at the end of transmission line, the basic reason for the selectivity loss of transient current protection was investigated

    摘要針對保護出口處發生金屬性或小電阻短路故障時，暫態電流保護完全失去選擇性的嚴重缺陷，利用時域分析方法，進行了詳細的故障暫態分析和模擬研究。
  5. After that, the author discusses a novel solid states limiting technology and provides a single - phase solid states bridge current limiter and a main circuit topology of three - phase fault current limiter. it can be found that the new type of three - phase solid states bridge current limiter can handle the fault conditions more flexibly. it can not only remove the fault circuit, but also control the value of stable fault current to cooperate with the existing line three - segment relay

    繼而，介紹了一種新型固態限流技術，給出了單相、三相限流器的主電路拓撲，分析了其基本工作原理和控制方式，指出以全控橋結構為基礎的變壓器耦合橋式限流器能夠更加靈活地處理電力系統的各種短路故障，及時地限制短路電流，並與現有的線路三段保護相配合，還可根據需要實現及時切除故障電路，在故障恢復時軟重合閘。
  6. The successful development of this novel power supply is to ensure the complete of the experimental prototype with the rated value of 400v / 300a and the maximum short circuit current of 1500a

    新型多輸出隔離電源的開發，保證了400v / 300a 、最大短路限流1500a的實驗室樣機的研製完成。
  7. 6 ) the imitative exploration and analysis that wind - electricity field short circuit is how to influence the relay equipment of electricity net

    （ 6 ）風電場短路電流對電網繼電保護影響的初步分析。
  8. 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。
  9. In order to fulfill the protection more effectively in the short circuit failure, a new method based on the varying rate of the system current is developed. in order to get the virtual value of the system current, considering the characteristic of the rogowski coil output, a new integral method based on software is adopted and the traditional integrator is omitted

    為更好地實現短路電流的保護，本文針對rogowski線圈測量電流的特點，結合對短路電流變化規律的分析，提出了一種基於電流變化率判斷短路發生的新型判據，並通過模擬實驗對本文理論部分進行了初步的驗證。
  10. When a high - power electric motor is starting, the current is heavy and the traditional protection strategy can ' t distinguish if it is a short - circuit current or the normal starting current, so the system is tend to make wrong

    摘要大功率電動機啟動時電流較大，傳統的保護策略無法區分是短路電流還是正常啟動電流，易產生誤動。
  11. The obtained results show that the pwm - fcl can limit the fault current quickly, and the unfaulted phase ( s ) and unfaulted line ( s ) will keep stable operation state when an asymmetry fault occurs

    結果表明了pwm - fcl不但可以快速有效地限制住短路電流，並且在系統發生三相不對稱故障時，可以保證故障線路非故障相以及非故障線路的正常運行。
  12. Based on the activex technology, electric component menus and toolbars are created in this paper, with which a net wiring diagram for power electronics system is drawn. take advantage of autocad events, it is easy to fully carry out the consistency between graphics and data, from which users can manage databases and visual operation on graphics. the graphics about short - circuit current distribution and protection coupling are auto - drawn by using the autocad entity and text objects

    本文採用activex技術，創建電氣元件菜單和工具欄，方便用戶繪制電力系統網路接線圖；利用autocad事件，實現圖形數據的一體化，從而可以使用戶在圖形上操作和管理數據庫以及計算的可視化操作；利用autocad的圖形和文本對象來自動繪制短路電流分布圖和保護整定圖。
  13. To the exploration, the author studies sailimu and buerjin wind - electricity field. the study shows the short circuit proportion supplied by wind - electricity is very high, so the wind - generator can " t be treated as a simple equipment that assumes energy, nor a simultaneous generator, if as an unsimultaneous generator, the short circuit will be different when the capacity changes, as a sequence, the relay will be influence too

    以上研究結果表明：風力發電機提供的短路電流在短路電流中占相當大的比例，因此不能將風力發電機作為簡單負荷處理，也不能視為同步機處理，即使作為異步機處理，當採用容量不同時，短路電流大小也有變化，因此，也就直接影響繼電保護的整定計算。
  14. Because the feeder short circuit current of subway is very great, the plug - in boards of input and output are different from the ac feeder protection. after analyzing and comparing the two popular input components, the thesis choices the shunt. in addition, the thesis gives the original design of output plug - in board

    由於地鐵饋線短路電流較大，保護的輸入元件及出口插件與交流保護不同，本文對目前常用的兩種輸入元件進行了分析比較后，選擇了分流器，在分析了直流快速開關動作情況的基礎上，對出口插件進行了初步設計。
  15. With the development of the electric industry and the rapid increasing of the wastage of the power, the effect of the low - voltage circuit breaker on the power supply and the circuit protection is more and more important. it was required that the circuit breaker has enough short circuit breaking capacity and some intelligent functions

    隨著我國電力工業的發展和用電量的猛增，低壓斷路器在配電和保護線路中起著日益重要的作用，要求它具備很大的短路電流分斷能力，實現選擇性保護和供電安全，同時具有一定的智能化功能。
  16. According to the vacuum electric arc theory, we can change the vacuum killing arc room touch head structure to produce magnetic field between the touch head interval when it is turned on and off to ensure the ability of opening and shutting the short circuit current

    根據真空電弧理論來改變真空滅弧室觸頭結構，使其開斷時在觸頭間隙產生磁場的方法來保證真空滅弧室的短路電流開斷能力。
  17. The fault current limiting technology has become a hotspot of fault protect research

    短路電流限制技術已成為故障保護的一個研究熱點。
  18. In order to make sure that it has the excellent breaking performance when the circuit is shorted, according to vacuum electric arc theory, the touch head structure of vacuum interrupter was changed to make it produce magnetic field between the two touch heads

    根據真空電弧理論來改變真空滅弧室觸頭結構，使其開斷時在觸頭間隙產生磁場的方法來保證真空滅弧室的短路電流開斷能力。
  19. The transient analysis and simulation studies in time - domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non - fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection

    研究結果表明，線路出口故障時暫態電流保護完全失去選擇性的根本原因是，在給定的采樣頻率的限制下，難以捕捉到過渡過程中極其短暫的母線分佈電容中的暫態電流，從而故障線路與非故障線路暫態電流波形的奇異性相近，根據故障線路和非故障線路的暫態保護判據計算結果不能正確識別故障線路。
  20. By study, we can know that when one - phase ground fault happens on the line, more far the fault location is from where relays place, more less is the difference of the two zero sequence currents, while hen one - phase ground fault happens on the other line, more far the fault location is from where relays place, more is the difference of the two zero sequence currents

    研究表明，當本回線路發生單相接地短路時，在通過公式計算得出的一特定值為正時，離保護安裝處越遠，本回線路零序電流與非故障線路零序電流相位差值越小；當另一回線發生單相接地短路時，離保護安裝處越遠，本回線路零序電流與故障線路零序電流相位差值越大，該值為負時則反之。
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