ground fault protection 中文意思是什麼

ground fault protection 解釋
接地保護裝置
  • ground : adj 碾碎了的，磨過的，磨成粉的。 ground and polished piston 【機械工程】研磨活塞。n 1 地，地面；...
  • fault : n 1 過失，過錯；罪過，責任。2 缺點，缺陷，瑕疵。3 （獵狗的）失去嗅跡。4 【電學】故障，誤差；漏電...
  • 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. So far, there has existed several kinds of theory of ground fault protection for field winding of generator. in these methods, pingpong bridge field ground protection is a simple and effective one

    目前已有多種原理的發電機勵磁迴路接地保護，其中乒乓式勵磁迴路接地保護是一種簡單有效的保護原理。
  2. This ground fault protection function may be incorporated into a circuit breaker

    這種功能可以一體化設計在斷路器上。
  3. Ground fault protection

    接地故障保護
  4. Ground fault protection this function trips ( opens ) a circuit breaker or sounds an alarm in the event that there is an electrical fault between one or more of the phase conductors and ground ( earth )

    接地故障保護當一個或多個相導線與地之間出現電氣故障時，接地故障保護通過跳脫斷路器或報警來示警。
  5. 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。
  6. The ground faults in the generator stator are by far common faults to which generators are subjected. internal short - circuit faults, which may immediately damage generator, are always preceded by the ground faults. the possibility of internal fault and damages caused by it can be decreased largely if the stator ground fault protection reliably and sensitively operates

    定子繞組單相接地故障是發電機最常見的一種故障，而且往往是更為嚴重的繞組內部短路故障發生的先兆，定子繞組單相接地保護的可靠與靈敏動作可以大大降低內部短路故障的發生幾率，減少故障造成的損失。
  7. Therefore, the stator ground fault protection plays an important role in the protection system of generator. at present, the large - sized hydro - generators, such as the generators in three gorges power station, require that the stator ground protection must be with very high sensitivity, so that it is beyond the capacity of available protection schemes

    定子繞組單相接地保護是大型發電機繼電保護系統中十分重要的一項內容，而現有保護方案難以滿足目前大型水輪發電機（如三峽電站機組等）不斷提高的定子繞組單相接地保護靈敏度要求。
  8. Ground fault of 6kv electric - network and realization of ground protection

    電網接地故障與接地選線保護的實現
  9. Carry out the electrical protection for the generator set, such as overload, shortcircuit, under - voltage, ground fault and etc

    實現機組過載短路欠壓接地故障等電氣保護
  10. Have studied generator ground model mostly used in detail for middle and big domestic generator units. calculates and deduces fault current as grounding of single phase and third harmonic fault protection schemes. first time contributes overall knowledge about generator neutral grounding of distribution transformer with secondary resistor, in which considered inductance of the transformer to people

    針對大中型發電機的兩種主要接地方式進行了分析，進行了接地故障電流、三次諧波保護的計算推導，首次在接地變高阻接地方式有關公式推導中計入接地變感抗，從而使人們對接地變高阻接地認識更為全面。
  11. 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。
  12. In order to analyze the characteristics of stator ground fault and develop its protection schemes, a mathematical model for large - sized hydro - generators is established based on the multi - loop theory of ac machines and considering the capacitance to ground and actual construction of the stator windings

    為了詳細分析大型水輪發電機定子繞組單相接地故障特點，校驗和開發相應的保護方案，本文建立了以交流電機多迴路分析方法為基礎、考慮定子繞組對地電容、採用實際繞組結構的發電機定子繞組單相接地故障模擬模型。
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