criterion of protection 中文意思是什麼

criterion of protection 解釋
防護標準
  • criterion : n. （pl. -ria） （評判等的）標準，準則。
  • of : OF ＝Old French 古法語。
  • protection : n 1 保護，保衛，防禦，掩護，包庇，照顧 （from; against）。2 保護者，防護物 （against）; 〈美俚〉...
  1. The criterion and extent of copyright infringement liability of dl, on the one hand, which affect directly not only the standard and quality of copyright protection, but also the existence and development of increasing internet industry, on the other hand, which is correlative with interests of innumerous users, hence copyright must delimit and define the liability of dl

    另外，數字圖書館的版權侵權責任的標準和范圍不僅直接影響版權保護的水平和質量，而且直接影響新興的網路服務業的生存和發展，關繫到網際網路能否健康發展，也關繫到無數網路用戶的利益。因此，版權保護法律在界定數字圖書館責任的同時，必須考慮對其責任加以必要的限制。
  2. Abstract : in practice, some differential bus protection had miss operation because of its unpractical criterion. it is analyzed and presented in this paper based on this situation

    文摘:在工作中發現某型母差保護裝置因判據不能滿足而在某些情況下可能拒動，並對此情況作一分析介紹。
  3. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  4. In china environmental tort law system in modern sense has already, the forms of it are constitution law, civil law, environmental protection law, interpretation of law, etc. china ocean environmental protection law ( 1982 ) has established the criterion of liability without negligence, the requisites to constitute an environmental tort are injurious act, damage, causation, etc. among of them injurious act is the prerequisite of environmental tort

    我國環境侵權法的無過失責任原則最先是由《海洋環境保護法》確立的。環境侵權的構成要件有行為的違法性（侵害行為） 、損害事實、侵害行為與損害事實之間的因果關系等三個條件構成的。其中行為的違法性（侵害行為）是構成環境侵權的前提，因為合法行為不能引起民事責任的產生。
  5. Even if the fault spread from external fault zone to internal fault zone, the differential protection can avoid misoperation. main criterion of protection is composite - percentage current differential algorithm according to every sampled value, which can accelerate the protection ' s trip, reduce large amounts of calculation and have strong stability to ta saturation

    本文採用基於采樣值的比率制動式電流差動保護演算法作為保護的主判據，可以明顯提高保護動作速度和減少計算量；具有較強的抗ta飽和能力，在區內故障時無制動，區外故障時有極強的制動特性。
  6. The author studies the prolems of principle and criterion of transient protection based on fault current, and gives a new scheme of tranisent protection

    提出了基於統計分析的高壓電網故障暫態信號處理的原理與演算法。
  7. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  8. The scope of the trademark right protection is determined based on the criterion for the confusion

    如何認定混淆也就是如何認定商標專有權的權利范圍問題，具有很大的重要性。
  9. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  10. This paper analyzed the criterion of the safety evacuation, factors affected on safety evacuation, calculating method of evacuation time and the smoke layer falling time, typically introduced the several calculation method that i had know, such as the japan three steps calculation method based on experience ( awareness time, travel time, queue time ), two computer modeling calculation method such as simulex and exodus and a spatial grid computer model of hongkong. and it also analyzed and certificated the application scope and difference between the computer modeling calculation methods and japan method with the practical project. all these are aimed to provided preference for performance - based design method and design of computer program for modeling evacuation of people, and advanced the steps of performance - based fire protection design method in our country

    本文對安全疏散的標準、影響安全疏散的因素、疏散時間和影響疏散的煙層下降時間的計算等方面進行分析，重點介紹了作者所掌握的疏散時間的幾種計算方法，日本的三步驟疏散時間經驗公式計算方法（察覺時間、步行時間、排隊等待時間） 、以及兩種計算機疏散計算模型simulex和exodus 、香港的空間網格計算機模型的計算方法等，並結合實際工程來分析驗證疏散計算機軟體模擬和日本經驗公式法之間的不同與適用性，並對疏散計算中的重要參數，人員密度和疏散人數的確定進行介紹，旨在為我國的性能化疏散設計與疏散模擬的計算機軟體的編制提供參考，同時促進我國性能化防火設計的進程。
  11. A simple and easy operating criterion is put forward in accordance with the relation between positive - sequence component and negative - sequence component of stator current when the motor is in unbalance and single phase broken. based on analyzing the traditional inverse time - lag overloading protection of motors, an inverse time - lag operating equation with accumulating stator current is achieved, according to the differential equation of the heating and cooling while the current flows into the conductor

    在分析電動機傳統的反時限過負荷保護的基礎上，根據導體中流過電流時的發熱、散熱微分方程得到了累加定子電流的反時限過負荷保護動作方程，經簡化后得到累加定子電流的實用的反時限特性遞推公式。
  12. Firstly, we analyze the transient and steady character of single phase high - impedance grounding fault. secondly, based on wavelet analysis on checking mutational signal and direction high frequency protection theory, utilizing zero sequence current and module current, this paper provides a new scheme including fault starting element, fault phase selection element, directional element and main criterion. this scheme can bear high impedance and is immune to system surge and frequency warp, which gets over the shortcoming of the lack of sensitivity

    由於現有的保護方案無法快速有效地切除此類故障，本文在詳細分析了單相高阻接地故障的穩態和暫態特性的基礎上，從小波分析原理出發，利用小波變換檢測突變信號的原理，以零序電流、模電流等為研究對象，結合方向高頻保護的原理，設計了一套包含啟動元件、選相元件、方向元件、主保護的保護新方案。
  13. After analyze the foundation of the current national code ( code for fire protection design of tall buildings gb500045 - 95 ) through experiments and fire simulations, the author has found that there are some limitations on the use of this national code for the designing of smoke management system in an atrium. this paper has been discovered that it is not enough when using the smoke layer interface height as a criterion to make an assessment on the safety rate in a building fire, or to calculate the egress time

    通過上述實驗研究和數值模擬研究，發現當採用我國現行的《高層民用建築防火設計規范》 （ gb50045 - 95 ）來指導中庭建築的排煙系統設計時，在本文設計的火災場景條件下（參照實際的中庭商場調研情況，即火災載荷密度較大時） ，對于本文實驗研究中所採用的相似模型及原型建築，無論是採用自然排煙或者是採用機械排煙，其排煙量皆不足。
  14. This paper is based on the pingpong bridge field ground protection, it presents one point to ground protection scheme which include the self - checking method of switches. the two point to ground protection scheme presents self - adapting fault location warp criterion after evaluating the effect on the calculation of fault location made by the change of transient resistance in the process of bridge switch. in order to make up the shortcoming of location warp criterion, this paper presents a comprehensive scheme into which integrate the second harmonic criterion

    本文針對乒乓式保護，結合開關自檢方法提出了完整的一點接地保護方案：在兩點接地保護方案中估算了開關切換過程中過渡電阻變化對接地點位置計算的影響，提出了故障位置偏差式兩點接地的自適應判據，為了彌補該判據的缺陷，提出了結合二次諧波輔助判據的綜合方案。
  15. The basis of software protection with cpld is to design circuits according to pci local bus criterion and the goal of software protection

    根據pci局部總線技術規范和所要達到的軟體保護的目的設計所需的電路是實現軟體保護技術的基礎。
  16. The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection

    應用功率譜估計方法討論了故障高頻暫態噪聲信號在頻率軸上的分佈情況，利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻暫態信號的衰減特性。論文的後半部分（第五，六，七章）著重分析了現有基於故障電流的暫態保護原理和判據存在的問題，提出了新的實現方案，並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據，可以準確區分故障線路和非故障線路，實現超高速暫態電流保護，計算更為簡單方便，計算速度更快。
  17. On the conditions that there is no criterion for protecting signal cable for urban rail traffic engineering, the author systemically analyzes the present situation and presents suggestions on signal cable protection methods from aspects of the property, origin of the electro - magnetic interference and the theory of electro - magnetic field, and finally the author puts forward some problems to be solved in signal cable protection in the future

    摘要針對目前城市軌道交通工程中，信號電纜防護無規范的現狀，從城軌電磁干擾的性質、來源和電磁場理論系統地進行了分析，提出了信號電纜防護措施的建議，並指出在電纜防護中需進一步解決的問題。
  18. Abstract : this paper introduces the principle of different ial - current protection about motor and the criterion of protection, and the desi gn of hardware and the flow of software are expounded

    文摘:介紹了電動機差動保護原理及保護動作判據，闡述了保護裝置的硬體設置和軟體流程。
  19. ( 4 ) based on system identification, the hardware - software system of traction transformer is designed in this paper, in which hardware structure of protection unit and action - criterion of protection are exploringly studied

    （ 4 ）初步設計了基於該原理的牽引變壓器保護的軟硬體系統，著重對保護單元的硬體構成及保護動作判據進行了分析討論。
  20. According to the sample theory, applied the time terminated test plan, the reliability compliance test plan was brought forward. the reliability compliance test plan was divided into two parts, residual current protection test and operation reliability test. in this paper, the test plan, the failure criterion and the program of reliability test were introduced

    本文由抽樣理論，採用定時截尾試驗方案確定了漏電保護器的可靠性驗證試驗方案，漏電保護器的可靠性驗證試驗由成功率驗證試驗和失效率驗證試驗組成；本文還給出了漏電保護器可靠性驗證試驗的試驗條件、試驗檢測方法、失效判據，以及可靠性驗證程序。
分享友人
分享到 Line

分享到臉書