短路電感 的英文怎麼說
中文拼音 [duǎnlùdiàngǎn]
短路電感
英文
short circuited inductance- 短 : Ⅰ形容詞(空間、時間兩端之間的距離小) short; brief Ⅱ動詞(缺少; 欠) lack; owe Ⅲ名詞1 (缺點) we...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 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...
- 感 : Ⅰ動詞1 (覺得) feel; sense 2 (懷有謝意) be grateful; be obliged; appreciate 3 (感動) move; t...
- 短路 : [電學] short; short circuit; cutting out; direct short; short out; short pass短路保護(裝置) sho...
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The development of a visual short circuit software under ptcad2000 is presented in this paper, as well as the system structure, the definition of the data structure, the interface to ptcad2000, the conversion of the original wiring diagram of power network to calculable power network, the implement of three sequence network, the implement of impendence matrix and admittance matrix of power network considering the zero sequence mutual inductances among lines, and the implement of short circuit calculation by using computer
本文介紹了在ptcad2000平臺下短路電流可視化計算軟體的開發。介紹了軟體的系統結構、數據結構定義、與ptcad2000平臺的介面、電力系統原始接線圖轉成等值可計算網路、序網的生成、考慮零序互感線路阻抗時電網導納矩陣和阻抗矩陣的生成,以及故障點短路電流計算的計算機實現。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。Transitional feature of the arc and metal droplet in the welding process with steam shielded arc is investigated by means of analysing the waveforms of welding voltage and current under different welding regimes and it is found that there are two types of arc process behavor ? " arc starting - arc blowing out - short - circuiting " and " arc - starting - short - circuiting ". under the condition of constant diameter of welding wire and its feeding speed, the arc process behavor can be changed by adjusting the inductance of welding circuit as well as the voltage of power supply. if arc process behaves as alternative process of " arc starting - arc blowing out - short - circuiting " with minimum time duration of arc blowing out and maximum frequency of short - circuit transition, the welding process will be stable with less spatter and smooth weld bead
通過分析不同焊接規范下的焊接電壓和電流的波形.研究了水蒸氣保護下電弧及熔滴過渡的特點,發現其電弧過程行為有「燃弧?熄弧?短路」和「燃弧?短路」兩種形式.在焊絲直徑和送絲速度一定的情況下,通過調節焊接迴路中的電感量和電源電壓,可以改變電弧的過程行為形式.若電弧過程呈「燃弧?熄弧?短路」交替進行,並且熄弧時間最短時,短路過渡頻率最高,在這種情況下,飛濺小,焊道成型好,焊接過程穩定The product facilitates extensive safety functions including : self diagnostic circuit ( temperature sensor malfunction, heater disconnection, automatic overheat preventive device, ssr short circuit ), over heat preventive device, over current electric leakage breaker, and key lock function
故障自我診斷(溫度傳感器異常、加熱器斷線、自動溫度過升防止功能、 ssr短路) ,過升防止器、過電流漏電保安開關、鍵盤鎖定等安全功能充實。The sieries product is suitable for the system with current 50hz - 60hz and the rated voltage of 3. 6kv 40. 5kv. it can be matched with other protective electrical equipment vacuum connection, loading switch etc. it can also be used as the overload or short circuit protection parts for high voltage motor, transformer, voltage mutual inductance attenuator and other power equipment
本系列產品適用於交流50hz - 60hz ,額定電壓3 . 6kv 40 . 5kv系統,可與其它保護電器如真空接觸器,負荷開關等配合使用,作為高壓電動機電力變壓器電壓互感器及其它電力設備的過載或短路保護等元件。Gzx inductive resistance current limiter is applied to ac power system with rated voltages of 6kv 10kv 35kv 50hz and series connected with shunt capacitor for limiting the surge current of shunt capacitor bank and eliminating the affection of capacitor discharging current during short circuit
電感電阻型限流器用於交流50hz ,標稱電壓為6kv 10kv 35kv電力系統中,與電容器相申聯,以達到限制並聯電容器組的合閘涌流,及消除電力系統短路時電容器放電電流的助增影響。Protected three - phase induction motors with short - circuited rotors
裝有短路轉子的防護型三相感應電動機Totally - enclosed three - phase induction motors with short - cicuited rotors. class e
裝有短路轉子的全封閉型三相感應電動機. e類By adopting resistance divider, voltage sensor designed in this topic has no ferromagnetic resonance, overcome saturation, has no load sharing, and is permitted to short and cutoff in circuit, so it has high reliability
本課題所研究的電壓傳感器採用電阻分壓器原理,不存在鐵磁諧振,克服了鐵心飽和,不再有負荷分擔,短路和開路都是允許的,具有高的可靠性。In this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
該傳感器具有正常電流的測量和短路故障時的保護功能,並且預留了與上位機的通訊介面,接受上位機的指令並向上傳送電網的電流參數。According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
本文在考察了國內外電流互感器發展現狀的基礎上,提出了一種基於rogowski線圈的電流互感器,該互感器具有正常電流的測量和短路故障時的保護功能,並且預留了與上位機的通訊介面,接受上位機的指令並向上傳送電網的電流參數。The fcl operates in two modes, in normal conditions, it is used as a compensation capacitor ; in fault conditions, the gto pair quickly switches on to get the by - pass reactor in operation to limit the current
正常情況下,由電容和限流電感對線路進行串聯補償,發生故障時,根據短路電流的大小控制gto的導通角,從而改變投入的限流電抗,達到限流目的。The effects of the error of ct and vt, hysteresis and load variation to short - circuit reactances are discussed also. by using error analysis and simulation analysis, this paper discussed the feasibility in engineering
論文分析了互感器誤差在幾種情況下對短路電抗測量結果的影響;通過變壓器建模,分析了磁滯特性和負載變化量大小對短路電抗測量結果的影響,驗證了該方法在工程應用上的可行性。And to the electric capacity type voltage mutual inductor, because it compares with electromagnetic type voltage mutual inductor, transient state its bad to respond characteristic, as circuit when making the short circuit two times trouble, the voltage two times delays dropping to zero while needing to pass certain one
而對于電容式電壓互感器,由於它與電磁式電壓互感器相比,其瞬態響應特性比較差,當線路故障而使二次短路時,二次電壓需經過一定的時延後才能下降到零。Firstly, a method to estimate the rotor speed, which is based on bp neural network, is introduced in this paper. secondly, the park vector approach is used to monitor and diagnose the inter - turn fault of the stator winding. finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the hilbert transform and digital filter
具體工作如下:採用bp神經網路對異步電動機轉子轉速進行無速度傳感器估計;對定子繞組匝間短路故障,採用派克矢量方法進行監測與診斷;對于轉子斷條故障,詳細介紹了一種新的基於希爾伯特變換與數字濾波的在線監測方法。Adopt the ds18b20 ' s figure temperature sensor, take the online measure to the key eq uipment of the system ; as to the video signal in the monitoring system, since the fact that video wire is tiny, and the connector is great, especially to those relative and removable video signal, the video wire is easy to break down, such as short circuit and so on, along with the video device is over a long period of time being in the circular telegram running state, also easily running into trouble, hence, valid means to be take adopt to the video signal
本故障分析儀採用了ds18b20數字溫度傳感器,對關鍵設備的機溫進行實時在線監測;對于監控系統中的視頻信號,由於其線路長、線徑細、轉接頭較多,尤其是那些可旋轉、移動的視頻信號,易發生視頻線斷線、短路等情況,再加上視頻設備是長期處于通電運行狀態,也易發生故障情況。因此應採用有效的方式對視頻信號進行監控。As a result of compound material, there is large difference between the starting rotor parameters and the steaty - state work parameters. big error will be caused if the parameters which are measured by common non - load and locked - rotor tests are used to analyze the starting performance
由於復合材料的作用,使得復合籠條轉子感應電動機起動時的轉子參數與穩態運行時有較大差異,所以用常規空載、短路實驗測得的參數,在分析起動性能時誤差較大。In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system
在實時控制系統的設計中,本文以三相全橋mosfet逆變電路作為實時控制主電路,採用120導通方式結合半橋pwm調制的控制方案,從而有效地避免了橋臂的直通短路;本文用單電流傳感器實現對相電流的檢測,來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息,而且也用於基於信號周期測量的轉速檢測,這樣就省去了速度傳感器;系統採用的是速度、電流雙閉環控制策略,力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。With the increase of the electric power system capacity as well as the short lines, high currents will possibly occur in the transmission line when a fault happens at the end of the line. the iron core of the current transformer ( ct ) will become saturated easily because of the large current, or when the secondary load of the ct does n ' t match the 10 % error curve
隨著電力系統容量增大以及短線的增加,在電力系統線路末端發生短路時,有可能出現很大的短路電流;在很大短路電流的作用下,或由於電流互感器二次側負載與10誤差曲線不匹配等原因,電流互感器鐵芯很容易飽和。This contact is normally closed, if an error occurs short - circuit at supply voltage -, sensor or signal cable of force transducer max. output signal exceeded problems with supply voltage the output opens
但如果有錯誤供電電壓短路傳感器或力傳感裝置的信號線超出最大輸出電壓或者供電電源有故障發生時,觸點的輸出打開。分享友人