過渡故障 的英文怎麼說
中文拼音 [guòdùgùzhàng]
過渡故障
英文
transient fault- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 渡 : Ⅰ動詞1 (由此岸到彼岸;通過) cross (a river the sea etc ) 2 (渡過) tide over; pull through 3 ...
- 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
- 過渡 : transition; transit
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
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Because the monitoring of electricity equipment is still in the condition of traditional prophylactic test ( monitoring off line ), wordage list and management method of handwork operation, to strengthen the real - time monitoring of the operation state of electricity equipment ( monitoring on line ), find out the anomaly of equipment, monitor and analysis the fault, then take a corresponding measures to lower the fault loss so that we can make the transition between the regulations of periodic repairing equipment and the regulations of reasonable state repair, is the work which the department of power supply and operation make much of
針對對現有電氣設備的監測大都還處于傳統的預防性試驗(離線監測) 、文字報表、手工操作的管理方式的現狀,加強對電力設備的運行狀態進行實時的監測(在線監測) ,及時發現設備的異常徵兆、對故障進行診斷分析,並採取相應措施,把故障損失降低到最低水平,進而將目前實行的設備定期檢修制過渡到更為合理的狀態檢修制,一直是供電和運行部門十分重視的工作。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。Be responsible for cost reduction, standardization of components, the transition of new designs into the plant, troubleshooting of manufacturing line issues and other project related to product engineering at blt plant
對降低零件的成本,以及其標準化,實現新設計向工廠運用的過渡,發現生產線產生的故障並對其進行解決,以及其它在百力通重慶工廠內與生產工程師相關的項目。Then, this thesis presents an algorithn of 2 - terminal quantity fault location based on synchronous gps sampling. this algorithm conducts fault location with only the 3 - phase fundemental wave voltage and current phasors of the 2 terminals of transmission lines and apples to lines of both symmetrical and asymmetrical parameters, irrelerant to the impedence, fault types and transitional resistance of the 2 terminals of lines
然後,本文提出了一種基於gps同步采樣的雙端量故障測距演算法。該演算法僅利用輸電線路兩端的三相基波電壓、電流分量來進行故障定位,不受線路兩端系統阻抗、故障類型、過渡電阻等因素的影響,對參數對稱線路和非對稱線路均適用。When the pcy valve sticks in the intermediate position, the engine idles rough and stalls frequently.
PCV閥在過渡狀況被粘住時,發動機會出現怠速不穩和頻繁息火的故障。Ramp - up simulates when many users sign on during a short time period, for example on a monday morning or during a failover
過渡狀態模擬的是在短時間內很多用戶進行登錄的情況,例如星期一的早晨或故障轉移期間。Because affected by the type of lines, fault resistance and two sides systems , fault analytical location has lower precision, but it has no dead line and is more better accurate if the fault location is close to the line terminal
故障分析法由於受線路類型、過渡電阻、兩端系統的影響測距精度較差,但故障分析法不存在測距死區,尤其對近區故障的測距較為準確。In the next place, an improved algorithm of grounding fault location for tree - type distribution system which is based on new fault function and criterion measure, is proposed in order to complete fault branch ide ntification, fault location and fault value. a lot of the simulation of fault diagnosis and location by computer demonstrate that the algorithm is effective
其次論文基於輻射狀饋線的任一分支線路發生接地故障,通過分析與推導,建構了配電線路單相短路點定位的故障定位函數和相應的故障判據,利用樹網單端信息完成故障分支識別、故障定位和過渡電阻定值。When this fault is cutted off and the breaker is reclosed, this scheme ca n ' t start by mistake. the availability of this scheme is proved with matlab test. the single phase high - impedance grounding fault is settled properly
Matlab模擬分析證明了該方案耐受過渡電阻的能力強,在故障切除和重合閘時不會因出現的暫態信號而誤啟動,不受系統振蕩、頻率偏差的影響,克服了常規保護靈敏度不足的缺點,較好地解決了單相高阻接地故障的難題。With the aid of phase - mode transformation, one line fault and cross line fault positions are determined in mode - domain accurately
該演算法不受系統阻抗和過渡電阻的影響,並且消除了雙回線間耦合的影響,可用於單回線故障和跨線故障的測距。Only using data of single - terminal, the algorithm can eliminate the influences of the fault resistances and it need n ' t resolve the complicated equation of long line
這種方法僅採用線路的單端數據,不受故障過渡電阻的影響,無需求解復雜的長線方程。The results of simulation show that the two algorithms are dependable and high precision, almost without any alteration when fault type, transition resistance and system parameter change
模擬結果表明,本文提出的兩種雙端故障測距新演算法具有可靠性高、測距精度高的特點,完全不受故障類型、過渡電阻和系統參數的影響。The influences of several factors such as harmonics, intermittent arc grounding, ct, load and fault resistance have been thoroughly analyzed, therefore, it is fundamental work for its application
深入細致地分析了諧波、間歇電弧、電流互感器、負荷、過渡電阻等多個因素對故障選線結果的影響,為方案的實用化奠定了基礎。Since it is immune to load change, immune to the value of grounded resistance change and its parameters can be easily measured, the fault location algorithm can be widely applied to the power distribution networks
基於此論文還編制了單相接地故障定位的計算機通用程序。該測距演算法不受負載參數變化的影響,不受接地過渡電阻值大小的影響。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。With the development of the aero - engine on - condition maintenance, technology of engine condition mortoring and fault diagnosis has been broadly used in developed contry
隨著航空發動機的維護方法從定期維護向視情維護過渡,軍用發動機狀態監控與故障診斷技術在航空發達國家已得到廣泛應用,而在我國,這項技術的應用研究還處于起步階段。When the pcy valve sticks in the intermediate position, the engine idles rough and stalls frequently
Pcv閥在過渡狀況被粘住時,發動機會出現怠速不穩和頻繁息火的故障。The other is based on genetic arithmetic. simulation results show that the results could be got easily, stably accurately by three methods, which is totally not affected by the type of fault, transition resistance, system parameters and avoiding the fake root problem
大量模擬結果表明:本文提出的三種方法計算較為簡單,穩定性好,具有很高的精度,完全不受故障類型、過渡電阻和系統參數的影響,且有效避免了偽根問題。A tentative idea of using the variation of interim resistance to achieve the metering ofadapting oneself to impedance is put forward, the relevant bases of a differentiation are derived, and its preliminary analysis has been carried out as well. it aims at eliminating the influence of interim resistance on metering of impedance protector by changeable property of arc resistance
提出了利用過渡電阻增量實現阻抗自適應測量的設想,導出了其動作判據,並對該判據進行了初步分析,旨在利用故障點電弧電阻的變化特性來消除過渡電阻對距離保護正確測量的影響。The transient analysis and simulation studies in time - domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non - fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection
研究結果表明,線路出口故障時暫態電流保護完全失去選擇性的根本原因是,在給定的采樣頻率的限制下,難以捕捉到過渡過程中極其短暫的母線分佈電容中的暫態電流,從而故障線路與非故障線路暫態電流波形的奇異性相近,根據故障線路和非故障線路的暫態保護判據計算結果不能正確識別故障線路。分享友人