零序保護 的英文怎麼說

中文拼音 [língxùbǎohù]
零序保護 英文
zero sequence protection
  • 零 : Ⅰ數詞1 （零數） zero2 （數的空位） zero sign （0）; nought 3 （表示沒有數量;無） nil; nought 4 （...
  • 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
  1. Both of the protection use high frequency distance or directional protection as main protection, and use distance protection adding current protection as reserving protection. this dispositon assured relay protection ' s four features : election, sensitivity, instancy and reliability

    每套保護大多以高頻距離、高頻方向保護作為快速切除區內故障的主保護，而以距離保護和零序保護作為后備保護，保證了繼電保護的選擇性、靈敏性、快速性、可靠性。
  2. These character based on sichuan power network ' s practice operation experience, in allusion to the config of the carrier wave protection in bypass breaker operating, through the study of protection ' s typical config : one side lfp - 902a, one side csl - 101a, proceeded comprehensive act module test, noted plenty of first hand test data and wave picture, proceeded detailed theory analyses, plenitude demonstration atresic type carrier wave distance protection when twain side atresic type logic is not completely same, basically can fill power network ' s requirement to relay of reliability selectivity speedly and sensitively

    本文結合四川電網的實際運行經驗，針對旁路開關代路運行時的保護配置情況，通過對旁路代路時保護典型配對組合：一側lfp - 902a ，一側csl - 101a的保護配置情況的深入研究，做了全面的動模試驗，記錄了大量的第一手試驗數據和波形，進行了詳細的原理分析，充分驗證了高頻閉鎖式距離零序保護在兩側閉鎖式邏輯不盡一致的情況下，基本能夠滿足電網對繼電保護的可靠性、選擇性、快速性以及靈敏性的要求。
  3. Study of principle of selective leakage protection of zero sequence dc of low - voltage power network underground and its implementation

    礦井低壓電網零序直流選擇性漏電保護原理的研究及實現
  4. To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators, a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed, and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings. the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed

    針對目前大型水輪發電機定子繞組單相接地保護靈敏度偏低的問題，通過分析單相接地故障后機端和中性點零序電壓的變化特點，提出了一種基於機端和中性點三次諧波電壓故障分量和兩種基於機端和中性點零序電壓故障分量的高靈敏度、高可靠性保護方案，並實現定子繞組的100 %保護。
  5. In normal conditions, there are two causes of maloperation of zero sequence directional protection, i. e, a fault from the device itself and wrong wiring outside the device

    而造成零序方向保護誤動的原因無非兩種，其一是由於裝置本身故障引起的；其二則是由於裝置外部接線錯誤造成的。
  6. The device can protect start - up status and running status of asynchronous motors by differential protection, over current protection, negative - sequence current protection, zero - sequence current protection, inverse time current protection, under - voltage protection and so on, can measure every kind of electricity, and can process the function of telecontrol, telemetering and telecommunication

    其依靠電流差動、速斷、負序過流、反時限、零序過流和低電壓等保護方法實現了片電動機的運行、啟動和自啟動過程進行保護，並實現各種電量的計量，同時具有遙控、遙測、遙信的功能。
  7. Technical specification for zero sequence current direction protection equipment

    零序電流方向保護裝置.技術條件
  8. Generally, single phase grounding fault can cause both high phase current and zero sequence current. proper grounding protection set can act reliably and cut off fault

    一般地，單相短路將產生很大的故障相電流和零序電流，相應的接地保護裝置將能可靠動作從而將故障切除。
  9. Abstract : zero sequence directional power protection is widely used in neutral directly grounded system

    文摘:在大電流接地系統中廣泛採用著零序功率方向保護。
  10. For ensuring correct wiring, a great of active tests on site should be done before the protection is put into operation

    為確保外部接線的正確性，在零序方向保護投入運行時，我們將進行大量的現場帶電測試。
  11. Main functions : 3 - stage complex - voltage blocked overcurrent protection, 3 - stage zero - sequence overcurrent protection, clearance discharging zero - sequence overcurrent protection, zero - sequence overvoltage protection, overvoltage alarming, overload alarming, fan start stop, tap changer blocking, pt wire broken blocking and alarming, etc

    其保護配置：復合電壓閉鎖過流段保護，零序過流段保護，間隙放電零序過流保護，零序過壓保護。
  12. The protector makes the over - current value, zero - phase - sequence component, negative - phase - sequence and so on as protection criterions, in protection theory ; it makes atmel 8 - bit microprocessor at89c55wd as the core, with which the lattice lcd is linked, in hardware

    該保護裝置在保護理論上，以檢測過電流幅值、零序電流為判據；在硬體實現上，以atmel單片機at89c55為核心，外接圖形點陣式液晶顯示器、觸摸式按鍵等外設。
  13. 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。
  14. Protecting the hardware lock is using additional electronic parts to save the relative data, that uses or refers by the protection program to hardware protection lock, and then uses the protection subroutine that is added into the program, to confirm whether the data on the external protection lock are correct or not, and then decides if the version that is being used by the user is legal to enable protection

    硬體鎖保護的方式就是利用外加的電子零件將保護程序所運用或參考的相關信息另外存於硬體保護鎖中，然後利用程序中加入的保護子程序，隨時參考位於外部保護鎖中的數據是否正確，並判定使用者執行的軟體是否為合法的版本，以達到保護的目的。
  15. A misoperation accident of zero sequence pilot protection happened recently in the guangdong power network due to the influence of zero sequence mutual inductance between power lines is analyzed in this paper

    本文分析了一起在廣東電網近期發生的由於線路零序互感影響而導致的縱聯零序保護誤動事件。
  16. Based on both quantitative calculation and theoretical analysis, the magnetically strong and electrically weak connection of power networks and its impacts on the behaviors of zero sequence pilot protection are studied in detail, the reasons and characteristics of the misoperation are summarized, some typical power network topologies that are prone to misoperation are analyzed, and several countermeasures for eliminating the influences of mutual inductance on zero sequence pilot protection are proposed for the sake of the increasingly meshed power networks

    從定量計算和理論分析的不同角度，本文深入研究了強磁弱電聯系的網路關系及其對縱聯零序保護動作行為的影響，總結了保護誤動原因和特點，分析了可能發生誤動的典型電網結構形式，並針對當今越來越緊密聯系的電網，提出了幾種解決互感對縱聯零序保護動作行為影響有效的措施。
  17. A study of adaptive zero - sequence current protection

    自適應零序電流保護的研究
  18. Analysis on reasons of error action to zero order protection in generator

    發電機零序保護誤動原因分析
  19. 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
  20. 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。
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