熱短路 的英文怎麼說
中文拼音 [rèduǎnlù]
熱短路
英文
thermal short circuit-
The single - chip microcomputer control technology has been applied in the system to carry out monitoring and protective functions for the asynchronous motors controlled. combined with suitable peripheral interface, disposition and flexible software, the mcs can measure the current and voltage signals of the motors. based on the measurements, the computation, judgment and decision are made to implement the phase sensitive short circuit, overload, supply over - voltage, supply under - voltage, over - thermal, leakage lock - out and loss of phase protective function
系統採用單片機控制技術，完成所控制電動機的控制功能，並對所控制電動機的電壓、電流等信號進行檢測、計算、判斷和處理，實現短路、斷相、過載、欠壓、過壓、過熱、漏電閉鎖等保護功能，並提供本質安全型輸入、輸出介面，能與煤礦井下監測監控系統聯網運行。In the whole system, the inner leak system is occurred to the lower pressure bypass system, this will directly cause the high quality reheated steam to reach to condenser, meanwhile increase the heat load of condenser, and the economy benefit of the unit will decreased
整個系統存在的內漏主要是低壓旁路低壓旁路的泄漏，直接造成了高品質的再熱蒸汽短路到凝汽器，同時增加了凝汽器的熱負荷，對機組經濟性的影響較大。The tripping device is basically divided into the instantaneous electromagnetic release and the time delay thermal release, which are used for protection of circuit from shortcircuit and overload respectively
斷路器由瞬時動作的電磁脫扣器和延時動作的熱脫扣器組成，分別用作線路的短路和過載保護。Overheat protection. led electronic address setup and display
過熱保護，過載保護，短路保護，失電壓保護，防震。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 driver has the quiescent current under 1 a and also has soft - start circuitry to limit inrush current flow at power up. the chip can be operated normally in the temperature range of - 40 to 85 according to the simulation results. the brightness of the white leds can be controlled by using a dc voltage or a pwm signal applied to the pin with a few external components added
系統採用0 . 5 mcmos工藝;輸入電壓范圍為2 . 7v到5 . 5v ;在關閉狀態下消耗電流小於1 a ;具有軟啟動功能，可減小啟動過程中的浪涌電流;具有短路及過熱保護功能，工作溫度范圍為- 40至85 ; led亮度控制可以通過外加dc或pwm電壓信號和很少的外部元件實現。After a simulated sample is given, we compute on this sample coupling analysis and steady non - linear analysis. by contrast with the experimental outcome of short circuit, we make certain that steady non - linear analysis should be used to analyze a true model. and then, we confirm the external conditions of finite element heat analysis after analyzing the cooling ways of multiple magnetic circuit transformers
2 、論述了有限元分析的電磁場和溫度場的理論基礎;製造出模擬樣機，分別用耦合場分析法和穩態非線性分析法對其進行計算，計算結果與其短路實驗結果進行對比，驗證了穩態非線性分析法計算結果的可信性;分析多磁路變壓器的冷卻方式，確定有限元熱分析的外部條件。Method for calculation of thermally permissible short - circuit currents, taking into account non - adiabatic heating effects
考慮非絕熱效應因素的允許熱短路電流的計算方法The concept of ghe efficiency is also introduced to discuss the effect of ghe construction parameters on its performance, especially that of thermal short - circuiting in the two branches of the u - tube. the geothermal heat exchangers often consist of a number of boreholes
通過引入了地熱換熱器鉆孔內效能的概念，從理論上定量分析了鉆孔內各項參數、尤其是兩支管之間的熱短路對傳熱的影響，為地熱換熱器的優化設計奠定了理論基礎。Through developing a 2 - dimensions heat transfer model of buried pipe - in - pipe heat exchanger and simulating the process by computer, the author figures out inter - relations of factors which influence characteristics of buried pipe - in - pipe heat exchanger, such as pipe diameter, pipe length, ratio of pipe diameters, flow rate, inlet water temperature, patterns of water inlet and outlet, and material features made of pipe, and proposes some optimizing indexes of buried pipe - in - pipe heat exchanger. the author studies the " heat - - short circuit " phenomenon as well and gives < wp = 5 > some important results
本文通過建立地下套管式埋管換熱器傳熱過程的二維傳熱模型，並藉助計算機對分析結果進行解析，弄清了影響埋管換熱器性能的管徑、管長、管徑比、通過流量、進水溫度、進出水方式以及管材等參數的作用，並提出了相應的優化指標，對研究界懸而未決的「熱短路」問題也進行了細致分析，得出了有關結論。After one power plant in ohio had shut down, elevated power loads overheated high - voltage lines, which sagged into trees and short - circuited
俄亥俄州一座發電廠跳機后，暴增的電力負載使高壓線路過熱，電線垂掛在樹上造成短路。A high - voltage fuse is a circuit element put there artificially and designed to melt itself when the fault current exceeds some limit, thereby the circuit could be cut off and the electrical equipment could be protected
高壓熔斷器俗稱高壓保險絲，是在電網中人為設置的一種最薄弱的發熱元件，是一種當電力系統發生過載或短路故障時，電路或電氣設備的保護元件。This paper discusses the short - circuit verifying of wires in dynamic stability and heat withstand while the wires are chosen in the design of power system
本文主要論述了電力系統中母線上發生三相對稱短路時，其動穩定和熱穩定的校驗問題。Exhibits include " the giant motor ", " the principle behind the motor ", and " making a magnet rotate by using electric current ", " the generator produces electricity " and " the magnet within the coil ". getting to grips with electric current exhibit include " when the current flows, things heat up ! ",
展品包括電流通過時會產生熱電流通過時會產生磁場電流通過時會造成電解電路必須閉合，才有電流通過電路是導電體，才有電流通過電器接上電池，才有電流通過及小心短路When installing, avoid any short circuits between electric heating wires, braided copper wires and core wires
安裝時應防止電熱絲和外編織銅絲及芯線之間的短路。On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。During its operation, the rotor of the machine is always under the great suppression of centrifugal force. the surface of rotor is the most important part to enduring the forces and thermal energy. so the windings of rotor are in a common problem of happening one - point to earth short fault, two - point to earth short fault, or turn - to - turn short fault
汽輪發電機是一種高速隱極式同步電機，在其運行時，轉子受到強大的離心力的作用，而轉子表面是承受機械應力和發熱的最關鍵的部件，因此汽輪發電機轉子繞組容易發生一點接地、匝間短路和兩點接地短路故障。Secondly, the following two subjects are discussed according to the calculation of short - circuit current : ( l ) to verify the dynamic stability condition of wires by using simulated annealing algorithm ( sa ), the paper calculates the maximum value of rectangle wires " short - circuit electrodynamic stress and gets the conditions of their having the maximum value. furthermore, some concerned data about the verifying of copper wires are given by analysing vibration spectrum of the electrodynamic stress ; ( 2 ) in order to get the heat withstand conditions of wires, the paper discusses some common calculation methods, and then tries to study the problem applying artificial neural network ( ann ) based on heat principle of metals. the model is shown to be feasible
其次，在電路中短路電流計算的基礎上， （ 1 ）進行母線的短路動穩定校驗計算：採用模擬退火演算法（ sa演算法）計算了矩形母線短路電動力的最大值及其取極值的條件，獲得了更為一般的結果，進而通過短路電動力的頻譜分析，給出了銅質母線的有關短路校驗計算數據； （ 2 ）進行母線的短路熱穩定校驗計算：討論了熱穩定校校的幾種常用計算方法，從導體或電器的發熱機理出發，運用人工神經網路理論對母線的熱穩定問題進行計算，通過算例比較，證明該方法用於熱穩定計算是可行的。Secondly, a series of novel detection schemes are presented creatively. furthermore, this paper proposes the joint detection scheme for rotor bar breaking and stator winding inter - turn short circuit fault in squirrel cage asynchronous motors, for the first time. meanwhile, a parameter identification technique based approach to detect stator / rotor over - heating fault is also presented
在此基礎上，提出了異步電動機轉子斷條與定子繞組匝間短路故障檢測新方法；首次提出了籠型異步電動機轉子斷條與定子繞組匝間短路故障聯合檢測方法；基於參數辨識技術，提出了異步電動機定轉子繞組過熱故障檢測新方法。Many protective and monitoring functions are integrated in the system, such as pilot circuit monitoring, earth - fault monitoring, short circuit protection, over - load protection, phase symmetry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on. all measuring results, fault states, fault parameters and error messages of six motors controlled by the sys tem are sent to the liquid crystal display module via the existing serial data connection
該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓、過熱等保護功能，通過觸摸式液晶顯示系統，不僅能顯示各路負荷的工作狀態和工作參數，而且能記憶其故障狀態和故障參數。分享友人