選擇保護系統 的英文怎麼說

中文拼音 [xuǎnzháibǎohùxìtǒng]
選擇保護系統 英文
discrimination protective system
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 保 : Ⅰ動詞1 （保衛; 保護） defend; protect 2 （保持） keep; preserve; maintain in good condition 3 （...
  • 護 : 動詞1. （保護; 保衛） protect; guard; shield 2. （袒護;包庇） be partial to; shield from censure
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. But when fault was occurred, sometimes there would be great loss. for the reason, the paper put forward a microcomputer bus protection scheme suit for mv or lv power system with low current grounding based on the great researching about the working theory of current bus protections and the characteristic of mv or lv system with low current grounding. based on it, the paper has designed the platform of the hardware and the software programs

    針對國內目前中、低壓電網大都未裝設母線保護裝置，發生故障不能及時切除時造成很大損失的狀況，本文在廣泛研究當前主流的母線保護動作原理並認真分析了中、低壓小電流接地系統特點的基礎上，提出了一套適合中、低壓微機母線保護裝置的研製方案，並據此選擇、搭建了硬體平臺，設計了軟體功能程序。
  2. 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。
  3. Design, supply, delivery, installation, commissioning, maintenance of hardware, software and related services for the implementation of the automated passenger clearance system and automated vehicle clearance system at new control points for the immigration department supply of 13 000 reams of woodfree printing paper, white, 100 gsm, 635x889 mm, long grain to the printing division of government logistics department from date of acceptance to fulfillment of contractual obligations supply of single - ply and multi - ply continuous stationery to the government logistics department as a 12 - month contract from date of acceptance, with an option for the government to extend for further 12 months supply of hard cover books to the government logistics department as a 12 - month contract from date of acceptance, with an option for the government to extend for further 12 months supply and installation of chromatograph - tandem mass spectrometer system for agriculture, fisheries and conservation department from date of acceptance to fulfillment of contractual obligations

    承投為入境事務處于新管制站推行旅客自助出入境檢查系統和車輛（司機）自助出入境檢查系統供應硬體和軟體，包括設計、送貨、安裝、試機、保養及有關服務為政府物流服務署印務科供應13000令100克平方米635x889毫米白色長紋道林紙（書紙） ，由發出接納書當日至履行合約訂明的責任為止為政府物流服務署供應單層及多層連續的文具紙張，合約由發出接納書日期開始，為期12個月，政府可選擇再延長12個月為政府物流服務署供應精裝書籍，合約由發出接納書日期開始，為期12個月，政府可選擇再延長12個月為漁農自然護理署供應和安裝色譜- -串聯質譜儀，由發出接納書當日至履行合約訂明的責任為止
  4. The approach combines hop - by - hop selective backpressure scheme with hol protection to eliminate congestion and improve performance of switched ethernet l2 domains instead of random early drop ( red ) scheme or its variants considering the characteristics of ethernet technique

    基於ieee802 . 1p和802 . 1q的隊列機制，採用逐跳選擇式背壓流控機制和頭端阻塞保護機制消除擁塞，改善系統性能。
  5. Combining with chinese realities, from the economic effect of trade protection policies, by using modem economic analytical tools, and using the experiences of implementing trade protection policies of other advanced countries for reference, the author studies some trade protection measures admitted by wto - tariff and non - tariff trade protection policies according with international conventions, and probes into the arrangements of tariff and non - tariff in china and chinese infant industries protection, and then puts forward the countermeasures of trade protection policies in china under the multilateral trade system

    本文運用現代經濟分析工具，結合中國實際，運用系統觀點，從貿易保護政策手段的經濟效應入手，借鑒發達國家不同發展時期的貿易保護政策選擇，針對中國關稅和非關稅貿易政策的現狀，研究世貿組織所認可的合法的貿易保護手段? ?關稅和符合國際慣例的非關稅壁壘措施的有關理論和實踐問題，對中國關稅和非關稅的安排、中國幼稚產業的保護問題進行探討，並提出多邊貿易體制下中國對外開放與貿易保護政策措施的協調與對策。
  6. For bus system installation, the focus is put on cable selection principle, installation process and antinoise measure ; for security protection equipment installation, the intrinsic safety concept, installation method equipment selection and installation under two electric power supply modes ( entity concept and fisco model ) and the bus system protection against surge voltage are illustrated ; for network component installation, the selecting, installing and integrating methods of general purpose terminators, repeaters, link equipment, bus power supply and impedance module are described

    在總線電纜的安裝方面，著重討論了電纜的選型原則、安裝方法和抗噪防擾措施；在安全保護設備安裝方面，介紹了總線系統中本質安全的概念、安裝方法、兩種供電方式（實體概念和fisco模型）下設備的選擇與安裝以及總線系統浪涌電壓的保護和設備安裝方法；在網路元件的安裝方面，主要列舉了通用終端器、中繼器、鏈路設備、總線電源及其阻抗模塊等的選擇、安裝和集成方法，為總線系統的安裝提供了可以借鑒的實用經驗。
  7. Then we define criterions including a series of software practice process and method and tools, which are also fit most of home software corporation to application software exploration and fit them to improve their software exploration engineering management before passing evaluation of cmm. the criterions we defined using a series normative process and document to engineer software exploration, which include " project management criterion ", " configuration management criterion ", " software test criterion ", " document writing criterion ", " software exploration and maintenance criterion ", ' software life cycle guide ", etc. " project management criterion " defines area and principle of software research management, which is practiced to manage the people, technology, resources, software, process and so on to improve efficiency and to ensure quality and increase income

    《項目管理規程》定義軟體研發管理的范圍、原則，通過實施該規程來對項目中的人員、技術、資源、軟體、過程等進行全方位的管理，一西南石油學院碩卜學位畢業論文以達到提高效率、保證質量、降低消耗、增加收益的最終目的; 《配置管理規程》 ，通過實施該規程對項目開發過程中的所有資源進行控制; 《軟體測試規程》定義對軟體系統測試所用工具、過程和責任: 《文檔編制規程》提供滿足國家《計算機軟體文檔編制規范gb8567 》標準的各種文檔模板來建立統一的文檔編制規范; 《軟體開發和維護規程》定義了軟體開發過程以及採取的方法和工具; 《軟體生命周期指南》 ，根據軟體項目管理的經驗，將典型軟體過程形成軟體過程模型，用於指導以後軟體周期的選擇; 《年度公司規劃》 ，對需要公司總體安排的資源統一調度的過程。
  8. Study on selective interlock and self - adaptive over - current protective system for underground high - voltage power network

    井下高壓電網選擇性聯鎖自適應過流保護系統研究
  9. On the basis of theoretical studies and discussion, combining the construction of the forest resource investigation management information system of ningxia forest information platform, we selected suyukou manage station of ningxia helan mountain nature protect bureau as an example and realized the automatic and remote user authority management of forest resource second class investigation data

    在理論研究和討論的基礎上，結合寧夏林業信息平臺項目森林資源調查管理信息系統建設，選擇寧夏賀蘭山自然保護局蘇峪口管理站為試點進行應用例證。實現了森林資源二類調查數據庫的動態管理以及遠程用戶權限管理。
  10. 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。
  11. Data inputting and graphinputting module respectively achieve data inputting of first system and electric firstwiring diagram inputting ; secondary scheme design module realizes scheme design ofsecondary loops including control, protection, signal, measure, automotive equipment, operation electrical source and electrical source for substation and power distributionstation, using rule - cased reasoning of expert system ; protective relaying settingcalculation module realizes setting calculation for first equipments which aretransformers, circuitries, capacitors, and electromotors ; secondary equipmentselection module realizes type selection of secondary microcomputer integratedequipments ; graph making out module realizes secondary drawings making outautomatically representing design production using case - cased reasoning of expertsystem and the drawings can be edited and modified under the secondary developedautocad environment

    數據輸入和圖形輸入模塊分別完成一次系統資料錄入和電氣主接線圖的輸入;二次方案設計模塊利用專家系統基於規則的推理實現變配電所各二次迴路的方案設計，包括控制、保護、信號、測量、自動裝置、操作電源和所用電源;繼電保護整定計算模塊實現主設備的整定計算，包括變壓器、線路、電容器和電動機;二次設備選型模塊實現二次微機成套裝置的型號選擇;圖形生成模塊利用專家系統基於實例的推理實現代表設計成果的各類二次圖紙的自動生成，生成的圖紙可以在二次開發的autocad環境下進行編輯和修改。
  12. The research work is involved in the main circuits structure and the protection of the valves, the determination for the important parameters of the components in the main circuits, the triggering system of the valves, the technology of hv - tsc valve ' s turn - on without inrush current presentation, and the function design for the controller of the thyristor valves. a real hv - tsc valve controller corresponding to the research work has been developed. field tests has shown that the hv - tsc valve controller is able to provide effectively and reliably control and protection for the hv - tsc valves

    本論文對高壓tsc裝置所用的可控硅開關的主電路電氣結構、主電路的保護電路、主電路中的重要元件參數的選擇、可控硅開關的觸發系統構成、無沖擊涌流投入電容器技術、可控硅開關控制器功能設計及其功能實現進行了深入的研究和探討，並對可控硅開關控制器進行了實際的設計和試制，現場測試證明其對可控硅開關的控制是可靠、有效的。
  13. Protection of structures against lightning ; part 1 : general principles ; section 1 : guide a : selection of protection levels for lightning protection systems

    建築物的雷電保護.第1部分:總則.第1節:導則a :防雷擊系統保護等級的選擇
  14. The relay protection ensures the safe operation of the electric system. the relay setting must be selected reasonably in order to exert effect of the relay protection completely

    繼電保護裝置是電力系統安全運行的保證。為了充分發揮繼電保護裝置的效能，必須合理地計算選擇各保護的整定值。
  15. This article mainly discusses such problems as the content of construction statement for temporary power supply on construction site, structure and power supply system, method of calculating capacity and load of power system, selection of cable and wires, together with basic requirement for security measures of temporary power supply

    摘要闡述了建築工程施工現場臨時用電組織設計編制的內容，供配電系統的結構和設置、基本保護系統，系統中容量和負荷計算方法、電線電纜選擇，以及臨時用電氣防護措施的基本要求。
  16. Research on selectivity electric leakage protection system base on null sequence power direction

    基於零序功率方向選擇性漏電保護系統的研究
  17. There are eight subsystems, which named cucumber breed choice, greenhouse choice and building, seeding technique, root management, vegetable adjustment, diagnosis of diseases and insect pests, system help. specially, cucumber diseases and insect pests - diagnosis expert system ( cd1p - es ) is the main content of this paper

    本專家系統包含8個子系統，即黃瓜品種選擇、保護地選擇及建設、育苗技術、定植管理、植株調整、病蟲害診斷與防治、病蟲害查詢、系統幫助，其中黃瓜病蟲害診斷與防治子系統是該專家系統的主要內容。
  18. It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time

    晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。
  19. According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed

    本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統，主要內容如下：針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀，回顧了國內外礦用高壓防爆開關保護系統的發展歷史，分析了目前國內高壓饋電開關保護系統所存在的問題，提出了「基於零序電壓基波啟動，五次諧波功率方向比較」的選擇性漏電保護原理，設計了相應的五次諧波提取電路和功率方向鑒別電路。
  20. These lens caps include a pinhole to protect the unit from bright light, but still allow the user the option of daytime use

    這些透鏡蓋包括針孔，在明亮的環境下以保護系統，但仍允許用戶選擇白天使用。
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