ct current 中文意思是什麼

ct current 解釋
電流
  • ct : 1 cell therapy 細胞療法。2 Central Time 3 Certificated Teacher 合格教師。4 code telegram（s） 電...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. The secondary current will be distorted when the ct undergoes saturation, which will bring some influence on the distance relay inevitably. furthermore more and more people pay attention to this problem

    飽和后的電流互感器二次側輸出電流產生畸變，不可避免地對距離繼電器造成一定的影響，而且這個問題越來越受到保護工作者的重視。
  2. Current transducer ( ct ) is an important measurement instrument in the power line monitoring. with the development of the technology of fiber communication and integrated electronics, the hybrid - type optical current transducer ( hoct ) will be the succedaneum of the traditional current transducer

    電流互感器是電力監測中的重要測量儀器，隨著光纖通信技術與集成電子技術的發展，混合式光纖電流互感器必將成為傳統電流互感器的換代產品。
  3. 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。
  4. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前，牽引變壓器通常採用差動保護作為主保護，但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障，如故障電流與變壓器處于勵磁涌流、過勵磁， ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分，可能造成保護誤動或拒動，從而危及整個鐵道電氣化系統的安全運行。
  5. In order to solve the existing ct saturation problem which is met in current differential principle, this paper bring forward the new method to discriminate ct ' s saturation based on bd wavelet transformation

    針對電流差動原理中遇到的ct飽和的問題，提出了基於bd小波變換識別ct飽和的新方法。
  6. The purpose is that the current transformer often working in wide range current could always get the output current with less error, what means that the ct is in steady low error grade

    為了使經常工作于寬量程電流的電流互感器始終獲得較小誤差的輸出電流，也就是讓它具有穩定的低誤差等級。
  7. Based on the current pcf prediction, it is estimated that the first berth of the next container terminal ( i. e. ct 10 ) will be required towards the end of this decade

    根據今回港口貨運量預測的結果，估計約在未來十年之末期，本港會需要另一個新貨櫃碼頭（即10號貨櫃碼頭）的首個泊位。
  8. With the development of power system, on one hand, the capacity of the power system is increasing very rapidly and the system current becomes larger and larger. on the other hand, with the optimization of the administration and allocation of the power energy, the traditional ct can ’ t meet the demand. our company ’ new product ( vsm ) is very urgent to develop a new type of ct to meet such requirement

    現代電力系統的容量在不斷加大，系統電流值不斷增加;並且對電力系統的輸配電自動化要求也越來越高，需對電力系統的運行進行在線監測、實時控制、故障預測、保護、通訊等，傳統的電流互感器越來越難以滿足電力系統的發展，因此，在電力控制保護和監測中起樞紐作用的電流傳感器提出了小型化、高可靠性、智能化的要求。
  9. Thesis this in existing electric capacity, whether it utilize by the ct one mainly reject and mix by suitable partial pressure not low - voltage partial pressure arm not high - handed of cvt electric capacity not insulating, in the middle of and ca n ' t compensate reactor, etc. of voltage transformer, design by sectional mutual inductor that ct combine cvt with, sectional mutual inductance utensil this have electric current mutual inductor and voltage double function of mutual inductor

    本論文在現有電容型絕緣電流互感器和電容式電壓互感器製造技術的基礎上，利用ct的主絕緣電容屏作為cvt的高壓分壓臂，配以合適的低壓分壓器、中間變壓器以及補償電抗器等，設計了由ct和cvt相結合的組合式互感器，該組合式互感器具有電流互感器和電壓互感器的雙重功能。
  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. According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction

    本文在考察了國內外電流互感器發展現狀的基礎上，提出了一種基於rogowski線圈的電流互感器，該互感器具有正常電流的測量和短路故障時的保護功能，並且預留了與上位機的通訊介面，接受上位機的指令並向上傳送電網的電流參數。
  12. Firstly, the paper introduced the commonly hardware configure of microcomputer relaying and the function of every module of industry controlling computer std90386. secondly, the paper introduced several types busbarprotection which was commonly installed on electric power system and the characteristic of mv or lv system with low current grounding. based on it, the paper put forwards the theory of percentage - restraint differential relay. after that, in the discussing every problems of the relaying working the paper put the emphasis on the negative effect of the ct saturation and countermeasure

    本文首先介紹了微機保護裝置的一般硬體配置以及作為裝置硬體平臺的std90386工控機各組件模板的功能，然後分析了目前電網系統裝設的母線保護的各種類型以及中、低壓小電流接地電網的特點，在此基礎上分析、介紹了作為本保護動作原理的「比率制動式差動保護」原理。
  13. With the development of power system, on one hand, the capacity of the power system is increasing very rapidly and the system current becomes larger and larger, so it becomes very difficult for a traditional current transformer ( ct ) to undertake the measurement task. on the other hand, with the optimization of the administration and allocation of the power energy, it is very urgent to develop a new type of ct to meet such requirement

    隨著我國電力系統的不斷發展，一方面，電力系統的容量在不斷加大，系統電流值不斷增加，一次側電流值的測量對傳統的電流互感器越來越困難；另一方面，隨著運行管理和調度向著快速，可靠，自動化方向發展，要求對電力系統的運行進行在線監測和實時控制，對作為一二次側聯絡設備的電流互感器提出了更高的要求，要求設計出一種新型的適應電力系統發展需要的電流互感器。
  14. But because ct at the time of the saturations have the complicated in wave form electric current, how correct to judge the saturations constantly, determine ct their the linear to spread becoming area protection of difficult point it be

    但是由於ct飽和時電流波形復雜，如何正確判斷ct飽和時刻、測定其線性傳變區一直是此類保護的難點所在。
  15. Abstract : the test and requirements of ct ' s short - time current concerned in the new national standard are summarized. some proposals for revising the guide of short - time current test are pointed out

    文摘:闡述了互感器新國家標準中電流互感器短時電流的要求及試驗等有關問題，並對修訂短時電流試驗導則提出了建議。
  16. In this method, the similar inductance is used to extract the excitation current of ct, which, through some electronic circuits, turns into proper compensation current and is injected into the compensation winding. this current replaces the exciting current, so the error is reduced

    本文的實現方法是採用具有與電流互感器鐵芯相似磁特性的鐵芯製成的電感提取電流互感器的勵磁電流，將該勵磁電流經過一些電子電路的處理，產生補償電流，注入補償繞組，從而減小電流互感器的誤差。
  17. Fail and turn electric wire into of the distance in 110kv and above voltage high pressure and vltrahigh voltage of grade, the mutual inductor generally adopts the mutual inductor of electric current ( ct ) and voltage mutual inductor ( cvt )

    在110kv及以上電壓等級的高壓和超高壓輸變電線路中，互感器一般採用電流互感器（ ct ）和電壓互感器（ cvt ） 。電流互感器和電壓互感器在繼電保護中起著重要的作用。
  18. This method uses wavelet transform to pick up the transient fault information because of its multi - resolution characteristics and time - frequency localization nature. fault line is detected based on the modulus maxima or energy comparison under some scale of wavelet transform of phase currents or component current. this method is applicable for such power system as only furnished with ct on two phases, so the shortcoming of other methods presented in recent years is overcome

    即利用相應出線相電流或分量的暫態信息突變量在小波變換某一尺度下模極大值或能量比較來確定故障線路，該方法同樣適用於只裝設兩相ct的小電流接地系統，從而克服了迄今為止提出的一些選線方法在系統只裝設兩相ct時失效的問題。
  19. 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。
  20. Current transformer ( ct ) saturation is a important problem in all protection relay

    電流互感器（ ct ）飽和一直是困擾變壓器保護以及其他所有保護的一個重要問題。
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