zero sequence protection 中文意思是什麼

zero sequence protection 解釋
零序保護裝置
  • zero : n （pl zeros zeroes）1 【數學】零；零號。2 零位；零點，起點；（溫度表的）零度，冰點；座標原點；無...
  • sequence : n 1 繼續；接續；連續。2 順序；程序；次第；關系；關聯。3 後果；結果；接著發生的事；後事；後文。4 ...
  • 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. 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
  2. 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。
  3. 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。
  4. 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。
  5. Technical specification for zero sequence current direction protection equipment

    零序電流方向保護裝置.技術條件
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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。
  12. 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。
  13. A study of adaptive zero - sequence current protection

    自適應零序電流保護的研究
  14. 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。
  15. But due to the existence of the fault resistance, the branch current, the zero sequence mutual coupling and so on, the apparent impedances and protection scope of distance protection will change, thereby affecting the performance of distance protection and the safety operation of power system

    然而，由於過渡電阻、分支電流和零序互感等因素的影響，會改變距離保護測量阻抗的大小，造成距離保護動作范圍的擴大與縮小，從而影響距離保護的性能，威脅電力系統的安全運行。
  16. This paper discusses and analyses several principal points affecting the performance of regular distance protection, such as the fault resistance, the branch current, the zero sequence mutual coupling and so on. then some concrete application of adaptive concept to distance protection will be analyzed and studied

    本文對于影響常規距離保護性能的一些主要因素如過渡電阻、分支電流和零序互感等進行了分析和討論，在此基礎上對于自適應思想在距離保護上的一些具體應用進行了分析和研究。
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