零序電流 的英文怎麼說

中文拼音 [língdiànliú]
零序電流 英文
zero sequence current
  • : 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 (...
  • : 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...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. Technical specification for zero sequence current direction protection equipment

    零序電流方向保護裝置.技術條件
  2. 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- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用,不僅有效彌補了目前已有小接地系統單相接地故障選線的缺陷,更將故障定位在故障線路最小故障區段。
  3. 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。
  4. From the perspective of minimum transmission losses, an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed. under the new definition, each quantity has its own physical meaning, and the zero sequence current can be decomposed into active and reactive components. furthermore, a generalized compensation method for zero sequence current is developed

    從輸損耗最小的角度出發,提出了任意相無中性線或有中性線系統的瞬時無功功率理論,在新的理論下,每個量都有清晰的物理意義,且能分解出零序電流的有功分量和無功分量,並給出了通用的零序電流補償方法,揭示了瞬時無功功率理論與傳統平均意義下的無功功率理論的聯系及本質區別,從而為研究hvdc - vsc及各種facts裝置的無功功率控制奠定了理論基礎。
  5. 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。
  6. This method bases on the relativity of the current through zero order line and the sensible current through the perterson coil

    這種方法依據線路零序電流與消弧線圈感性的相關性為基礎。
  7. The characteristic of the faulted phase is the same as the traditional method with this new compensation method. the performance of the healthy phase has been improved by this new method

    零序電流的補償採用了自適應方法,對故障相繼器動作性能不變,對健全相距離繼器動作性能顯著提高。
  8. The research job includes bringing a project about fault calculation, using node impedance matrix as maths model of network to derive the arithmetic based on the fundamental of modifying impedance matrix by adding the branch, building the whole database with micosoft access. the whole project is realized with visual c + + 6. 0. it is applied to au hui electric network, and is proved correct

    本文首先根據系統的要求,綜合考慮各種運行方式變化,提出合理的零序電流,分支系數的計算方案;然後採用節點阻抗矩陣作為系統的數學模型,推導出基於支路追加法的阻抗矩陣快速補償優化演算法,從而實現計算方案;最後以micosoftaccess為工具設計出完整的故障計算數據庫。
  9. A new residual current compensation method based on the magnitude of current of each phase that has the clear phase selection ability is presented in this paper. the residual current is compensated in an adaptive manner

    本文中提出一種新的可變補償的方法,對單相距離測量元件提出了零序電流自適應補償方法,演算法本身帶有較強選相功能。
  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. The zero sequence current transformer is full enclosed type. the secondary windings and iron core are insulated by epoxy resin. the middle hole is used for cable going through

    本型零序電流互感器為全封閉式。二次繞組及鐵芯均澆注在聚脂樹脂內。中間窗孔供三相纜穿過。
  12. A study of adaptive zero - sequence current protection

    自適應零序電流保護的研究
  13. Through theoretical analyses, the zero - phase - sequence current is the reason of the metering error

    理論分析這一誤差的產生是由於零序電流的存在。
  14. So the line which the one - phase ground fault take place can be discriminated by these

    因此可以利用雙回線路中的零序電流相位差值的變化趨勢來識別故障線路。
  15. Classification, requirements, constitutions and operational principle of gfci are introduced briefly. the properties and selection of the zero - phase sequcnce current transformer core and tripper for gfci are in detail described

    簡要介紹了漏開關( gfci )的分類、要求、結構及工作原理。詳細敘述了漏開關零序電流互感器及其鐵芯,脫扣器的工作特性、材料選用。
  16. Judging by the different magnitude and direction of the wavelet packet coefficient modular maximum, we can select the single phase - to - earth line. the method using wavelet singularity detection theory to extract the fault time is discussed. a fault distance measurement algorithm combining wavelet analysis used for separating the character from the transient fault signal with artificial neural networks used for the nonlinear approximation from the transient character to fault distance is presented

    論文提出利用各個出線零序電流在頻帶上小波包系數模極大值的方向和大小的不同來實現故障選線,討論了利用小波分析的奇異性來判斷故障啟動時刻,提出將小波分析和人工神經網路結合,利用人工神經網路的非線性逼近能力,實現故障暫態量到故障距離的非線性映射,完成測距。
  17. The paper put forward new method for single - phase earth faulted line selection in a compensation network. they are separately based on active power 、 variety of residual current and wavelet

    研究了自動補償網單相接地故障選線的新方法? ?有功法,零序電流變量法、小波法。
  18. Further, the methods are proposed to compare and summarize for choosing fault line and detecting distance in neutral ungrounded system. subsequently, the characteristics of zero sequence current and transient courses are introduced and analyzed

    接著對小接地系統單相接地故障時零序電流的暫態過程及特點做了介紹和分析。
  19. This paper discusses the size of transient zero current and the method of analyzing it. numeral simulation shows the feasibility of it. negative current at fault line is differ distinctly from non - fault line

    文中討論了零序電流暫態分量的大小和提取方法,對數字模擬和混合模擬試驗數據進行分析,結果表明零序電流暫態分量用於單相接地故障識別是可行性的。
  20. The new standpoint that ip - iq detecting method based on three - phase three - wire system can be directly used in three - phase four - wire system is presented and proved. generalized harmful currents compensation based on multilevel converter and multi - band hysteresis pulse width modulation with timer are presented

    提出並證明了基於三相三線制系統的ip - iq檢測法可直接用於不平衡三相四線制系統有害的檢測,無需事先剔除零序電流的新觀點。
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