電流的故障 的英文怎麼說

中文拼音 [diànliúdegùzhàng]
電流的故障 英文
failure of the current
  • 電 : 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...
  • 流 : 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...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 故 : Ⅰ名詞1 （事故） event; incident; happening; accident 2 （原因） cause; reason 3 （朋友; 友情） fr...
  • 障 : Ⅰ動詞（阻隔; 遮擋） block; hinder; obstruct Ⅱ名詞（遮擋物） barrier; block; obstacle
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  1. With the deveiopment of hydraulic technology, hydraulic system and hydraulicequipment are more complicated, hydraulic technology is more widely and morecomp1icatedly used in agricultural machine and their malfunction is more difficu1t to bedetected. fault diagnosis of hydraulic system is not as apt to be observed as that of themechanical equipmeflt or is not as easy to be detected as that of electric equipmeflt bymu1tipurpose meter or other meters. flux meter gage and pressure gage ca n ' t meet the needof fault diagnosis for hydraulic system because its working medium and workingcomponents are hiding inside the sealed vessel

    隨著液壓技術的發展，液壓系統及液壓設備越來越復雜，液壓技術在農機上的應用也變得廣泛而復雜，農機液壓系統的故障診斷也越來越困難，液壓系統的故障診斷不象機械設備那樣直觀，也不象電氣設備那樣通過萬用表等儀器測得，液壓系統的工作介質和工作部件都在密閉的容腔內，流量計、壓力表等測量儀器遠遠不能滿足故障診斷的需求。
  2. There is great change of negative current component when it happens the line - open fault. it is marked as the occurrence of the fault. and it can be concluded the phase characteristic of negative current in the line. in the transient course, there are plenty of harmonics in the fault line. through the transient analysis, it is drawed that the amplitude of each harmonic in fault phase is greater than other phases. harmonic current in fault line is far greater than other normal lines

    發生斷線故障以後，線路中會出現負序電流的突變，可以作為故障啟動判斷的標志，並且通過分析得出了故障時負序基波電流的相位特點。在故障暫態過程中，故障電流中含有大量豐富的諧波成分，各次諧波在故障期間有突變，並且衰減很快。
  3. The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified

    據此，對該站進行了串聯諧振分析和並聯諧振分析，並結合測試數據和有關變電站的運行記錄，指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高，引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因，提出了相應的諧波治理措施，包括針對湯6c電容器5次諧波電流含量偏高的原因，提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器（湯sc其餘部分停運）以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象，提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。
  4. 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接地方式的發展過程，通過對諧振接地原理和單相接地故障的暫態、穩態分析，認識到接地故障對系統安全運行的危害，通過消弧線圈對接地電容電流的迅速準確補償是減小故障危害的最主要手段。
  5. 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

    單相接地故障在小電流接地系統中出現的比較頻繁，此時必須盡快找到故障線路以及大致的故障點，以避免兩相對地短路。
  6. Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more

    迪揚電氣在gis和避雷器的帶電測試與故障診斷分析，電力電纜的故障定位與局放檢測，變壓器電抗器的各種測試診斷與溫度監測， sf6的水分測量與回收，絕緣油的測試分析與濾油處理，紅外測溫與光纖在線測溫，以及各種電阻測試與計量，溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。
  7. The test - bed has the functions of accurate and direct - viewing showing data stream and fault codes of electronic engine control system, and faults could be set in this bed

    本故障實驗臺，能準確直觀地顯示發動機電控系統的數據流和故障碼，並能設置故障。
  8. Three different d - fronts are defined in this paper, and the test generation is consisted of three parts : to excite the fault at first ; to maximize the iddt difference between fault - free circuit and faulty circuit at second ; and finally to minimize the effect of bypass

    文中定義了三種不同的d前沿，並將測試生成分為三個部分： 1 、激活故障， 2 、使無故障電路和故障電路的瞬態電流差別最大化， 3 、減少旁路的影響。
  9. Among the many testing methods of analog and mixed signal circuits booming up in recent years, the pseudorandom testing technique is easier to generate testing stimuli and the current - based testing method could magnify the response differences between fault - free circuits and faulty circuits

    近年來提出的很多種模擬及混合信號電路測試方法中，偽隨機測試法易於產生測試激勵，基於電流的測試法能使正常電路和故障電路的頻率響應的差別增大。
  10. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  11. A fault current limiter using permanent magnets has been designed and its performance simulated using a twodimensional time - stepping finite - element method incorporating a model of hysteresis for hard magnetic materials

    摘要按永久磁鐵設計製成的故障電流限制器，性能是靠含有硬磁材料的磁滯模型的2維時間分級有限元件方法獲得的。
  12. The paper analyses the principles of distinguishing internal faults current from inrush current and their defects at the present time on the basis of investigating widely the existing papers on identification of inrush current

    本文在廣泛閱讀國內外現有的關于變壓器勵磁涌流識別的文獻的基礎上，分析了目前區分變壓器勵磁涌流和故障電流的多種原理及存在的問題。
  13. In order to meet needs of reliability and speediness of power transformer protection, and to have protection blocking reliably in the presence of magnetizing inrush current, the wavelet transform is applied to the discrimination between inrush current and fault current

    本文把小波變換應用於勵磁涌流的鑒別，詳細探討了用小波變換來區分勵磁涌流和故障電流的具體方法，提出了兩種比較適用於工程實際的方法。
  14. So it can be used for single - phase fault identifying. this paper discusses the size of the negative current and the method of analyzing it. numeral simulation shows the feasibility of it

    由於負序電流在故障線路和非故障線路上具有顯著差異，故本文也研究了將負序電流作為故障特徵量的可行性。
  15. But this method can ’ t detect some kinds of faults under some high performance ics. recently, a novel fault diagnosis technology including iddq and iddt has developed rapidly

    基於電流的故障診斷方法包括靜態電流診斷方法（ iddq ）和動態電流診斷方法（ iddt ） ，是近期發展起來的新方法。
  16. A fault diagnosis method of 24 - wave controlled rectifier circuit

    一種二十四脈波可控整流電路的故障在線診斷方法
  17. It can also determine the fault spot and reason. this technology has been used in some technological fields and proved efficient. it has promoted the revolution of maintance system and the historial protection is replaced by preventive maintenance. with this technology, we can improve the reliability of machine and decrease the maintance fee. recently, reserch has pick up a fervent pace in the area of fault diagnosis of electrical machines. the paper simply analyzes the fault reason of electrical machines, stressly describes and explores the methods of condition monitoring and fault diagnosis such as partial discharge, stator current, rotating speed, vibration etc. fault prognosis is now include diagnostic feature, reason, spot. prodigious improvement in signal processing hardware and software has made this possible. primarily, these techniques depend on locating specific harmonic components of the fault. these harmonic components are usually diffirent for diffirent types of faults. automated tools such as fuzzy logic based system is also simply presented in the paper

    本文從絕緣結構的故障機理入手，以絕緣結構故障的典型特徵? ?局部放電為研究對象，重點討論局部放電的在線監測方法、適用場合併比較它們的優缺點；在分析籠型異步電機轉子斷條在線監測的定子電流監測方法后，根據其缺陷，本文探討了溫升不平衡法、希爾伯特變換數字濾波、小波包分析法的原理及優點；以電機軸承、氣隙偏心等故障為研究對象，通過對電機振動和轉速頻率的檢測，診斷電機的故障類型；本文的重點工作是將人工智慧技術中的模糊技術應用於電機的狀態監測和故障診斷中，力求使電機故障診斷更接近人工智慧化；最後，本文對電機狀態監測和故障診斷系統進行了硬體和軟體初步設計，為實現預測維修提供了有效的技術手段。
  18. Electrical machines are the most important and main drive devices in manufactures and our daily life. no other kinds of machines can replace them. they are widely used in the modem world. without electrical machines, the world would not be what it is today. when operating, they might have a lot of faults. if a main electrical machine is wrong in a work line, the whole line will stop, even the whole productive system. the phenomenon of the faults are so complicated and various that the maintance worker should be skillful and very experienced. the history of fault diagnosis and protection is as archaic as the machines themselves

    電機是當今生產活動和日常生活中最主要的原動力和驅動裝置，它廣泛地應用於現代工業生產中，它們數量之多，地位之重要，幾乎沒有其他設備所能與之相比。電機在運行過程中，難免會出現這樣那樣的故障，假如一條生產線上的主要電機故障，必將造成生產線停工，甚至會影響整個大生產系統的工藝流程。電機的故障現象比較復雜，要求維修人員具有較高技術水平與經驗，才能發現和判斷。
  19. Fault analysis and treatment of zfw direct current gen erator

    直流發電機的故障分析與處理
  20. By study, we can know that when one - phase ground fault happens on the line, more far the fault location is from where relays place, more less is the difference of the two zero sequence currents, while hen one - phase ground fault happens on the other line, more far the fault location is from where relays place, more is the difference of the two zero sequence currents

    研究表明，當本回線路發生單相接地短路時，在通過公式計算得出的一特定值為正時，離保護安裝處越遠，本回線路零序電流與非故障線路零序電流相位差值越小；當另一回線發生單相接地短路時，離保護安裝處越遠，本回線路零序電流與故障線路零序電流相位差值越大，該值為負時則反之。
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