接地故障電流 的英文怎麼說

中文拼音 [jiēdezhàngdiànliú]
接地故障電流 英文
earth fault current
  • : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
  • : Ⅰ名詞1 (事故) event; incident; happening; accident 2 (原因) cause; reason 3 (朋友; 友情) fr...
  • : Ⅰ動詞(阻隔; 遮擋) block; hinder; obstruct Ⅱ名詞(遮擋物) barrier; block; obstacle
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • 接地 : [電學] landing; body; ground connection; electrical grounding; grounding; earthing; earth; ground...
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The two - point to earth short fault may cause short currents whic h can lead to serious accident. so it is necessary to monitor the state of field windings of turbo - generator and detect the kind of fault and predict its inclination. thus the security level of power system will be improved

    由於發機轉子兩點時會產生較大的短路,導致惡性事的發生,因此對發機轉子繞組進行狀態監測,判斷短路的形式和趨勢是十分必要,有助於提高系統安全運行水平。
  2. Numerous preprogrammed and user - defined time current curves for sensing phase or ground faults. - three independent recloser interval times

    對于相間和,有很多條預定義的或者用戶可定義的時間曲線可供選擇。
  3. New designed auto tracing arc eliminating device based on this technique contents more technology, which has sample circuit, wide tuning scope, quick response and low noise. this paper firstly introduces neutral grounding histroy. by analyzing the syntony grounding theory, the transient and stable process of one - phase grounding fault, the threaten to secure run of power system and the importance of exact compensation for capacitive current are cognized

    論文中首先介紹了中性點方式的發展過程,通過對諧振原理和單相的暫態、穩態分析,認識到對系統安全運行的危害,通過消弧線圈對的迅速準確補償是減小危害的最主要手段。
  4. The single - phase grounding fault frequently occurs in neutral ungrounded system, the fault line and fault location must be found to avoid a phase - to - phase short as soon as possible

    單相在小系統中出現的比較頻繁,此時必須盡快找到線路以及大致的點,以避免兩相對短路。
  5. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability , insulation coordination , electromagnetic interference , but assault safety 。 in china , the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network , low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai , beijing , and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas , such as zhuhai , substations grounding with low resistance revealed some problems , including power supply reliability rapidly dropping , transmitting line often tripping ; and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv的形式、消弧線圈的應用范圍、兩種運行方式供可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以纜為主的城區10kv網中性點方式的選擇問題進行研究。論文首先對10kv網的中性點運行各種方式進行分析,比較各方式的特點,然後以重慶儲奇門變站10kv網的實際參數來建立數值計算模型,在考慮了變化、中性點阻取值大小、阻值變化等多種影響因素的情況下,對中性點經消弧線圈和經小方式下網的過壓水平和點短路大小進行了數值計算,其計算結果與科院所作現場試驗進行了比較。
  6. In this paper, the meaning of research and development status of the small current grounded line detection devices. the current measurement principles, the relevant structures and reasons for their success or failure of the devices in lining power network are analyzed. then, the principles of wavelet analysis, resonance wavelet analysis and energy analysis are detailedly introduced

    本文簡述了小選線研究的重要意義,介紹了小系統單相選線的發展狀況,及濟寧網現有選線裝置的測量原理和結構,分析了各種選線模式成功與失敗的原因。
  7. The fault line selection matter in such system is one of the problems, which have not solved successfully for many years

    系統單相選線是多年來一直未能很好解決的一個難題。
  8. This paper researches the non - direct - grounded system fault detection from software arithmetic view, whose main content is as follows : the paper analyses the system running characters before and after fault. and the paper analyses the fault transient signal and fault steady signal and all parts in fault steady signal after the single line - to - earth fault occurs, and discovers the fault laws and appearance of fault signal. the analyzing of the fault laws and fault phenomenon of non - direct - grounded system all above is the base of analyzing arithmetic

    本文針對小系統選線的問題,從軟體演算法的角度進行了研究,主要內容如下:對小系統前和后系統的運行特點進行了分析,並且對小系統發生單相后,暫態信號、穩態信號以及穩態信號的各種成分進行了深入的分析,找到了的規律以及其信號的表現形式,為對各種演算法的分析比較打下了基礎。
  9. An automatic fault location method is proposed based on ftu after the circuit analysis of single line - to - ground fault in distribution networks

    通過對配網發生單相后饋線的壓、變化規律的分析,論文提出了基於饋線現場監控終端ftu的點智能定位方法。
  10. Small earthing neutral grouding power system

    網單相選線的新方法
  11. Minimum trip for phase, ground and sensitive ground faults

    相間,和靈敏的最小跳閘
  12. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫態零序幅值法」 、 「穩態基波零序方向法」 、 「穩態7次諧波零序方向法」和「 s信號注入法」 -進行有選擇遞進使用,不僅有效彌補了目前已有小系統單相選線的缺陷,更將定位在線路最小區段。
  13. This paper analyses the test results gained by mixed simulation, and validates the reliability of the use of transient zero current and negative current in fault identifying

    文中討論了負序的分佈及提取問題,試驗數據同樣表明負序用於單相識別是可行性的。
  14. This kind of intellectualized unit based on 87c196kc singlechip has several functions as electric power parameter measurement, over - current and earth - fault protection, communication and status monitoring for switchgears

    這種智能單元具有測量力參數、過保護、通信、開關設備狀態監測功能。
  15. 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切除此類,本文在詳細分析了單相高阻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、模等為研究對象,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。
  16. 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

    針對大中型發機的兩種主要方式進行了分析,進行了接地故障電流、三次諧波保護的計算推導,首次在變高阻方式有關公式推導中計入變感抗,從而使人們對變高阻認識更為全面。
  17. Because the fault current is very small, the fault defection is difficult

    由於接地故障電流很小,因此給選線帶來了一定的困難。
  18. Because there is direct relation ship with fault currents and transient and dynamic voltages, in theory or practice, it is so complicated that the selection of generator neutral grounding model will affect or determine the generator protection scheme

    由於暫態過壓、接地故障電流等都直與發方式有關,同時還影響或決定著發機的保護形式,所以方式的選擇在理論和實踐上都是一個復雜的問題。
  19. Under the conditions of high safe coefficient of insulated electrical strength of the stator winding of the generator, the selection of earthing resistance value should meet the needs of matching one - point earthing protection of the stator and limiting the fault current

    在發機定子繞組絕緣氣強度有較高的安全系數的情況下,阻值的選取應主要服從與定子一點保護的配合及限制接地故障電流的需要。
  20. Single phase earthed fault is the common fault in this system. to detect the faulty feeder is difficult for the fault current is very small

    單相短路是最常見的,由於它的短路較小,使檢測較困難。
分享友人