斷流試驗 的英文怎麼說
中文拼音 [duànliúshìyàn]
斷流試驗
英文
current interruption test- 斷 : Ⅰ動詞1 (分成段) break; snap 2 (斷絕;隔斷) break off; cut off; stop 3 (戒除) give up; abstai...
- 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...
- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 試驗 : trial; experiment; test
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It looks upon water resistant as load, simulate every instance of locomotive running and check its every parameter automatically, then collect and dispose these data of parameters, calculate the power of simulating running of locomotive, which is based on the current, and voltage of host dynamotor. afterward, it can be judged from the working state of locomotive. through experiment and adjust each parameter, it can provide important warrant to the components of locomotive whether they can work normally and credibly
即以水阻作為負載,模擬機車運行,對機車的主發電動機的電流、電壓和柴油機的轉速等參數進行檢測,並對檢測結果進行處理,計算出模擬機車運行時的功率,並以此為依據,對機車的工作狀念進行判斷,通過水阻試驗,調整有關參數,使機車運行時能發揮所要求的功率和滿足規定的工作特性。The types of the detection equipments and apparatus are over 100, such as x - ray detector, r - ray detector, digital ultrasonic flaw detector, eddy current flaw detector, eddy current flaw detector, magnetic memory metal diagnostic instrument, acoustic emission testing an analyzing system, three - dimensional ultrasonic testing system, microcomuterhydraulic pressureniversal testing machine, metalloscope, portable direct - read spectrograph, have achieved the national advanced technology
擁有各種檢測設備100多套,如射線探傷機、數字式超聲波探傷儀、渦流探傷儀、磁記憶金屬診斷儀、聲發射檢測及分析系統、三維超聲波檢測系統、便攜式直讀光譜儀、微機式液壓萬能試驗機、金相顯微鏡等,達到國內先進水平。Railway rolling stock. magneto - thermic microcircuit - breakers for maximum current for controls and auxiliaries circuits. generalities and tests
鐵路車輛.控制和輔助線路用最大電流熱磁電機微型電路斷路器.一般原則和試驗Railway fixed equipment. high speed unipolar circuit - breakers for direct current traction systems 750, 1500 and 3000 volts. characteristics and tests
鐵路固定設備.直流電壓為750 1500和3000v的牽引設備的高速單極斷路器.性能和試驗In this paper, rebar corrosion state was judged with three electrochemical nondestructive measuring technologies, i. e. half - cell potential, a. c. impedance and time potential. when the rebar was transformed from passivation to depassivation, it can obtain the chloride ions corrosion critical content through taking and analyzing chloride ions content around the rebar
本文利用半電池電位法、交流阻抗法和時間電位法三種電化學無損檢測技術判斷評估試件在試驗過程中鋼筋腐蝕狀況,當鋼筋由鈍化狀態轉為活化狀態時,取樣分析鋼筋周圍氯離子含量,得到了不同技術條件混凝土的氯離子臨界濃度。The influence of stray inductance in the module circuit to turn - off transient over voltage of igct has been investigated systematically, the surge current calculation has been done by simulation, and the short circuit failure once occurred in experiment has been analyzed by computer simulation, reproduced the breakthrough failure happened in experiment by means of simulation
充分利用計算機模擬的優勢,詳細分析了模塊電路雜散電感對igct關斷過電壓的影響,進行了短路浪涌電流計算,對試驗中發生的短路故障進行計算機模擬分析,重現了試驗中出現的誤觸發貫穿短路故障現象。In the simulation of close water test, varied profiles of velocity of flow are obtained at different leakage location along the detected pipe, the variety values of the water level in the check well are acquired with time, consequently the location of the leakage can be judged
在閉水試驗時,通過模擬沿管道長度方向上不同滲水點的流速的變化,以及得出窨井出口處的水位隨時間的變化值,來判斷管段中最有可能出現滲漏點的位置。In boundary treatment, the model turns into generally adds coarseness boundary made of specially complex many coarseness body in the physical model experiment as the coarseness body highly and discharges the density to add the coarseness spot as the main characteristic whole, both to avoid the location within the body of this complex mathematical simulation problems, and could realize this model after to simulate the apron that adds the coarseness namely adds the coarseness section downriver speed of flow to the downriver current of water base speed of flow influence in to hang upward
該模型在邊界處理時,將物理模型試驗中由特別復雜的多個加糙體組成的加糙邊界概化成以糙體高度為主要特徵的整個加糙部位,既避開了對加糙體內部進行極其復雜數學模擬的這一難題,又能實現模擬海漫加糙段下游水流流速在垂向上的分佈變化這一主要目的。在獲得基本的入流流速分佈、初始水位及加糙體的絕對高度和加糙段長度的情況下,能迅速模擬出加糙段下游各個斷面在垂向上的流速分佈情況。Under operation system of dos and windows, control software is developed respectively. the wave of voltage and current as the ac contactors switch - on and switch - off is displayed dynamically, which make the equipment not only used as general electric life test instrument, but can apply test date for contactor study
在控制軟體方面,分別完成dos平臺和windows平臺控制軟體設計,實現了交流接觸器觸點閉合與斷開時刻電壓、電流波形動態顯示功能,使該裝置不僅能作為交流接觸器常規電壽命試驗裝置,還對接觸器觸點的研究提供必要的試驗數據。In these years, sf6 gas is widely used in the high voltage circuit breaker because of its excellent insulating and arc - quenching character. it is very meaningful to optimize the design of circuit breaker and save the expenditure of test by using the computer auxiliary computation
由於sf _ 6氣體具有優良的絕緣性能和滅弧性能,近年來sf _ 6氣體越來越廣泛地應用於高壓斷路器中。利用計算機輔助計算模擬開斷過程中滅弧室內的氣流場特性對于優化斷路器的設計及節約試驗費用具有重要的意義。Reliability test method of circuit - breakers for overcurrent protection for household and similar installation
家用和類似用途的過電流保護斷路器的可靠性試驗方法Synthetic testing of high - voltage alternating current circuit - breakers
交流高壓斷路器的合成試驗Guide for synthetic capacitive switching tests of ac high - voltage circuit breakers
交流高壓斷路器的合成電容電路開關試驗指南Test procedure for ac high - voltage circuit breakers rated on a symmetrical current basis
基於對稱電流的交流高壓斷路器試驗程序Guide for synthetic capacitive current switching tests of ac high - voltage circuit breakers
交流高壓電路斷路器的合成電容電路開關試驗指南In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料,結合有關專家多年的整治經驗,總結出壩體的損毀原因及影響因素;對現有塊體穩定性的研究成果進行回顧和總結,並針對散拋石壩的直接損毀現象,結合山區河流的水流、地形特點,利用塊體粒徑與起動流速的關系,提出塊體穩定重量與起動流速高次方成正比的概念,流速50的增長可能導致塊體穩定重量接近40倍的變化;通過二維變坡水槽試驗,研究了壩體穩定的主要影響因素,包括塊體重量、壩頂水深、斷面尺寸、塊體材料(塊石和卵石兩種) 、護底等,結果表明對于山區河流,試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微;最後,根據西部地區的自然、經濟、交通等條件,提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施,以期取得良好的工程效果。High - voltage fuses. part 3 : determination of short - circuit power factor for testing current - limiting fuses and expulsion and similar fuses
高壓熔斷器.第3部分:試驗限流熔斷器和排氣式及類似型式熔斷器的短路功率因數的測定Initial recovery voltage and peak recovery voltage across the circuit - breaker have an essential affect on re - strike. for assessing performance of circuit - breaker, the higher inductance and lower inductance must be considered at the same time when testing according to theoretic analysis, the directly test circuit on switching the no - load overhead by high - voltage circuit breakers of rated voltage 252kv and below, in compliance with the correlative standard jb5871 and the test devices, and the test circuit parameters have been calculated and the many testes have been carried out
在理論分析的基礎上,考慮實驗室現有設備的情況依據標準jb5871的規定,選用合適的試驗設備,對試驗線路的參數進行計算,在實驗室建立了252kv及以下電壓等級斷路器開合線路充電電流直接試驗線路,利用該線路進行了數臺產品的試驗,分析了試驗結果,並根據試驗結果和理論基礎討論了gb t1984 - 200 《交流高壓斷路器》 (報批稿)關于開合線路充電電流試驗的有關規定。Chapter three is the trial part. the test of the every technical parameters of the trial tube has been finished in company. the test and verify of the ability of the short circuit electric
第三章為試驗部分,在公司內完成了試驗管的各項技術參數測試,並在合成迴路上進行了真空滅弧室短路電流能力開斷的試驗驗證。In this dissertation, firstly, characteristics of no - load overhead line and processes of switching no - load overhead line by circuit - breakers are analyzed, then, transient recovery voltage across circuit - breaker are calculated emphatically and the factors of affecting transient recovery voltage are analyzed
這就要求斷路器具有良好的開合空載架空線路的能力。實驗室進行開合線路充電電流試驗是考核斷路器開合空載架空線路性能的重要手段,通過試驗可以優化斷路器的設計、提高斷路器開合空載架空線路性能。分享友人