有故障的相位 的英文怎麼說
中文拼音 [yǒugùzhàngdexiāngwèi]
有故障的相位
英文
fault phase- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 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
- 的 : 4次方是 The fourth power of 2 is direction
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
- 相位 : phase position; phase
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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。Because the relative changing will result in the reducing of the accuracy of the determining the failure circuit region and the validity of the entire test system diagnosis result, their infrared thermal image must be matched
熱像圖位置的相對改變會導致電路故障區域判定的準確性和整個診斷系統診斷結果的有效性的降低,因此必須對熱像圖進行匹配。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電流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。It includes : dynamic show of technics flow, real time data acquirement and show, history data save and print, fault alarm, etc. the plc control system mainly accomplishes the wastewater technics flow control, harmonizes the logical relationship among local intelligent control instruments and transmits the state of each local equipment to the industrial computer simultaneously, the plc control station receives the control commands from the industrial computer ; the local intelligent units take charge of the correlated parameters measure, disposal and control, and it will transmit the related parameters to the computer, etc. in this thesis, introduced municipal wastewater treatment technics, the integrated application program development of computer, the design method of plc control station, the communication between plc control system and computer, and the network of wastewater treatment with profibus - dp was also discussed
上位計算機主要實現遠程監測和管理功能,具體包括:工藝流程動態顯示、實時數據獲得及顯示、歷史數據存儲與列印、故障報警等功能plc控制系統主要完成工藝流程式控制制以及協調現場各智能儀表之間的邏輯關系,將現場各設備的運行狀態通過通訊網路傳輸到上位計算機,並接收上位計算機的控制指令;現場各智能儀表單元負責各相關參數的監測和處理、控制,並將有關參數送往上位監控計算機進行處理、保存等。本文以莎車污水處理項目為例,介紹了城市污水處理工藝、上位監控計算機的綜合應用程序開發、城市污水處理自動控制系統plc控制站的設計和採用profibus系列中廣泛應用於現場設備的profibus - dp總線。The instrument can detect all kinds of steam, diesel engine start - up performance, high - voltage ignition performance, fuel injection performance, rechargeable performance, dynamic performance, service gas phase, abnormal sound engine vibration analysis more than 30 kinds of technical parameters, and analyze the causes for the failure, the detection process, may at any time and waveform display various technical parameters and results can be random print, the machines are more than 100 kinds of domestic and foreign memory engine technical parameters, it is rich in content and the test results can be readily compared
該儀器可檢測各種汽、柴油發動機的啟動性能、高壓點火性能、燃油噴射性能、充電性能、動力性能、配氣相位、發動機異響震動分析等30餘種技術參數,並分析故障產生的原因、檢測過程中,可隨時顯示各種波形及技術參數和結果並可隨機列印,該儀器內存有一百多種國內外發動機技術參數,內容十分豐富,隨時可以與檢測結果對比。Abstract : the responses of shaft bow and their relationships with unbalanceresponses and mechanical or electronic run out are analyzed based on the theory of rotor dynamics. the responses of shaft bow are separated from the unbalance responses successfully by making use of vibration information under different rotor runs. an identification method of thermal bend is presented based on the 2d - holospectrum technique. experimental results show that when bow phase is steady and amplitude is variable, the tangent of initial phase point on the 2d - holospectrum is parallel, which can be effectively used for diagnosis of bent shaft
文摘:依據轉子動力學理論分析了柔性轉子彎曲響應的特徵,在此基礎上討論了它與不平衡響應及機械與電氣跳動量之間的關系,並利用轉子在不同起車情況下的振動信息,有效地分離了彎曲響應和不平衡響應,求解出彎曲量與不平衡量的比值.提出了轉子在恆定轉速下,基於二維全息譜技術的熱彎曲故障識別方法.研究結果表明,當彎曲量相位穩定而其幅值變化時,轉子響應的二維全息譜初相點的切線是相互平行的,由此可以有效地實現轉子熱彎曲故障的識別與診斷So the development of self - energy sf6 cb is very important. in the paper, the math model of arc - quenching chamber air - pressure character is built on the base of 126kv / 31. 5ka self - energy sf6 cb ' s exploiting, then the theory analysis and calculation is deeply been done for cylinder radius, nozzle spout radius and opening position of moved contact that they have the essential effect for the use of arc energy in the course of opening. arc - quenching chamber parameter is confirmed according to the request of full opening and fault opening when the cb is opening
本文針對126kv31 . 5ka自能式sf _ 6斷路器的研製,建立了相應的滅弧室氣壓特性數學模型,對自能式sf _ 6斷路器開斷過程中電弧能量利用有重要影響的滅弧室缸徑、噴口直徑、動觸桿開口位置進行了詳細深入的理論分析和計算,並根據斷路器開斷中的滿容量開斷和近區故障開斷的要求確定了滅弧室參數。For safety reasons, an overrun tunnel of sufficient length is required at all terminal stations to ensure trains failing to stop at the design position, as a result of human error or defective equipment, would not collide with the tunnel end
基於安全理由,所有終點站均須設有足夠長度的掉頭隧道,確保列車因人為錯誤或機件故障而停站位置失準時,不會與隧道末端相撞。The writer bases her research work on the most popular grid middleware globus toolkit, and takes grid platform of fault - handling of electric power as the application background, and her work includes : ( 1 ) researching into grounded theories of grid and key technologies of grid information service, and analyzing thoroughly the bottom implementation mechanism and related function interfaces of mds in gt3. 2 ; ( 2 ) analyzing the shortage of traditional fault - handling system of electric power, and putting forward the necessity of importing grid technology into this application domain ; ( 3 ) doing a thorough application analysis for the grid platform of fault - handling of electric power, and bringing up the architecture based on globus toolkit for this application domain, and then locating focus on the information service, finally designing and implementing the service information management module ; ( 4 ) successfully installing, configuring and testing gt3. 2 under the linux operation system, and establishing a simple virtual organization as a simulative grid environment ; ( 5 ) designing testing instances fit for the simulative grid environment, and developing grid services for testing related functions ; ( 6 ) summarizing the writer ' s research work, looking forward to the developing directions, and settling the base of succeeding work
本文的研究工作圍繞網格信息服務展開。作者以現有主流網格中間件globustoolkit為基礎平臺,以電力故障處理網格平臺作為應用背景,進行了以下研究工作: ( 1 )對網格基礎理論和網格信息服務的關鍵技術進行了研究,並深入分析了gt3 . 2中mds的底層實現機制和相關功能介面; ( 2 )分析了傳統電力故障處理系統的不足之處,提出在該領域引入網格技術的必要性; ( 3 )對電力故障處理網格平臺展開應用分析,針對該領域提出了基於globustoolkit的總體架構,然後將重點定位到信息服務上,設計並實現了系統的服務信息管理模塊; ( 4 )完成linux平臺下gt3 . 2的安裝、配置和測試工作,並構建了一個簡單虛擬組織作為模擬網格環境; ( 5 )針對模擬環境設計測試實例,編寫網格服務對相關功能進行了測試; ( 6 )總結作者的研究工作,展望下一階段的發展方向,為后續工作奠定了基礎。Firstly, object - oriented programming method and relation database technology are used to realize protective information management, with a multiple tires " client / server architecture. using it, the technical staffs can check all kinds of reports, fault waves and setting values of protection. secondly, based on protective principles of ta21 series protection devices, protective function is simulated by using object - oriented technology
首先,本文將面向對象方法和關系數據庫技術結合起來,採用psmis的多層客戶?服務器體系結構實現對保護信息的管理,以便供電段技術人員查看保護裝置的整定值、各種報告、故障錄波(系統不僅能顯示波形,還能動態顯示波形每一點的峰值、有效值、相位,甚至阻抗值及阻抗角、諧波含量等) 。Moreover, its interior pll circuit substitutes traditional pll. as a result, the presented design not only overcomes some shortcoming of traditional circuit such as tracking speed and accuracy, but also gets rid of response lag time and multi - phase noise. the system design is also important to improve our country ' s fault diagnosis standard
而該系統內部鎖相電路代替了傳統方法中的pll ,因此,提出此系統設計不僅能夠克服基於傳統鎖相環電路的等轉角采樣方法跟蹤精度低、速度慢和使用不便等特點,還能克服電路中的由於不可避免的響應延遲時間所導致的不適合快速的列車運行及過多的相位噪聲問題,對于推動我國鐵路故障在線診斷技術的應用普及具有重要意義。Abstract : in order to process signal in depth and to extract the fault feature from original signal in machinery diagnosis , the graphical display algorithm that can keep the data length of wavelet transform results the same as that of original signal is used. the fault diagnosis of a bend axial piston pump via b - spline wavelet that has linear phase is provided. the results of study demonstrate that the new method has excellent feature and the weak fault signal can be extracted from the strong vibration background of the pump
文摘:採用具有線性相位的b樣條小波,應用圖形顯示演算法並結合小波變換快速演算法將信號分解到不同的頻帶上,且分解結果和原信號長度保持一致,可對信號進行深層次的處理,克服了傳統的信號處理方法不易提取微弱信息的不足.通過對礦用斜軸式柱塞泵振動信號的分析,分離出了配流副磨損、球鉸松動、缸體及泵軸支撐軸承的故障特徵,為液壓泵的故障診斷提供了依據,並為信噪分離、微弱信號提取及設備的早期故障診斷提供了一條有效途徑Based on the analysis of the transient and stable features of fault information on line in single carrier power supply with ineffective grounding neutral, this paper puts forward a new method for fault location in small current power system called " gradual identifying law "
本文針對這一問題,在深入研究了中性點非有效接地單端供電系統發生單相接地故障后線路上的各處故障信息的暫態特性和穩態特性的基礎上,提出了一種新的小電流接地系統單相接地故障定位方法- 「遞進信息法」 。In this thesis, the fault location algorithms of hv transmission line are evaluated at first, then the factors that affect the accuracy of the fault location are analyzed, and the proper solutions are presented
本文首先對現有高壓輸電線路故障定位方法進行了綜合評述,在此基礎上對造成穩態故障測距誤差的一些尚未獲得滿意消除的因素進行了深入的探討,並提出了相應的解決方法。The distribution network automated system ( das ) is a management information system, including computer software and hardware technology, the computer network technology, the automatic control technology, the data communication technology and electrical power system technology, and it is utilized to acquire the data from power distribution network, monitor operation, position breakdown fast, isolate the failure, restore the power supply and administrate need, what ’ s more, it reduces the time of power cut effectively, improve the reliability and quality of power supply
配電自動化系統( das )是集計算機軟硬體技術、計算機網路技術、自動控制技術、數據通信技術及電力系統相關技術於一體的信息管理系統,為配電網路的數據採集、運行監視、快速故障定位、故障隔離、供電恢復以及需求側管理等提供了有力的技術手段,能夠有效地縮短事故停電時間、提高供電可靠性、改善供電質量。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。Prosprosing a tansformer winding model to judge whether the transformer has come into bing interturn short circuit and the degree of interturn short circuit, and providing an availability for condition monitoring of transformer that improves the accuracy of condition monitoring and fault diagnosis. 3. the accuracy and invalidity of diagnosis of fault positions and fault characters of power transformer would be improved greately if reasoning and analyzing the operation records and oringnal datums of transformer
建立變壓器繞組狀態監測和故障診斷的模型,通過對繞組在線監測判斷繞組是否發生了匝簡短路、具體哪一相發生匝間短路以及匝間短路的嚴重程度,為變壓器狀態監測提供了有效的狀態監測量,實現了變壓器故障的局部定位,有效地提高了電力變壓器故障診斷的準確性。The thesis uses sql server 6. 0 database, standard sql access interface, and oriented - object program language vc + + to implement our electric network dispatching message management system. the system can operate like this : automaticly check if having data files come ; discriminate file type ; automaticly read data into database ; rapidly give out the precise analysis results, including waveform display, fault component calculating ; select fault phase ; distinguish fault type ; precisely fault allocate ; run all kinds of database administration, like antomatic add - on, automatic deletion, amendment, inquiry by different conditions ; print all kinds of outcome and keep them into database ; share data resource by web technique ; deal with complex faults. the whole system i finished will be powerful technic support for dispatching operation
本文採用標準的sqlserver6 . 0數據庫,標準sql訪問介面和面向對象編程工具vc + +進行編程,實現了集數據庫、分析計算、圖形化界面、網路通訊於一體的電網故障錄波信息管理及故障診斷系統,該系統能夠在每次故障后自動查詢有無數據文件的到來;能夠對傳送到調度端的數據文件分析其類型;能夠按comtrade格式自動地將大量數據信息完整地填入數據庫中;能夠進行故障選相,故障類型判別和故障精確定位;能夠快速地對故障做出精確的分析,計算各次諧波分量,有無功和視在功率,功角,序分量等;能夠對數據庫進行各項管理,如瀏覽,自動添加和刪除,修改和按各種不同條件進行查詢;能夠將計算結果,各種表格圖形列印出來和保存進數據庫中;能夠將計算分析結果通過web技術為其他部門提供共享數據資源Through studying the principle of dimmer and switch power supply, it was found that in some frequency points, by analyzing the phase of electric voltage and current it can tell if arc faults occur
研究調光燈及開關電源的工作原理可以發現,通過分析迴路中電壓電流在某些頻率點的相位信息,可以有效判別是否發生了故障電弧。Distribution power systems in our country are almost ineffective grounded systems, it is called small current neutral system ( scns ). but the unique characteristics of ground - faults of the scns make it difficult to locate exactly the fault point of transmission lines
我國大多數配電網均採用中性點非有效接地系統,即小電流接地系統,但由於該系統自身的特點,其單相接地故障的檢測定位成為長期困擾電力工作者的一個棘手問題。分享友人