壽命分額 的英文怎麼說
中文拼音 [shòumìngfēné]
壽命分額
英文
fractional life-
Then i finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. the following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. at last, i make the update generator in batch process, and collect and analyze reliability dates again
首先進行了與可靠性相關的數據收集與分析，對故障模式進行統計；然後從電路結構、環境應力及容差三個方面進行可靠性分析，從而為關鍵的可靠性設計提供了依據；接下來的可靠性設計，從電路設計、熱設計、降額使用、篩選四個方面逐一解決了可靠性分析階段發現的問題；最後，我將改良的發生器批量生產，並從中重新收集了可靠性數據進行計算，事實證明改良后高頻無極燈的平均壽命已達到6萬小時。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。Abstract : analyzed the demands of capacitor specific parameters in modernpst, emphatically discussed specific parameters demands of filter capacitor and absorber capacitor. pointed to take care of voltage rating and conditions of life test in use
摘要：分析現代電源技術的發展對電容器特殊參數的要求，著重討論濾波電容器、吸收電容器，指出在使用時應注意額定電壓與壽命試驗的條件。This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change
本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。This kind of on - load tap changer has the merits of advanced structure, operating reliably, long useful life and maintenance freely, it is suitable for oil - immersed three - phases transformer with frequency 50hz, rated voltage 35kv and below and rated current under 400a and below
統一設計的有載分接開關，具有結構先進，動作可靠，使用壽命長，維護方便等優點，適用與50hz ，額定電壓在35kv及以下，額定電流在400a及以下的三相油浸式變壓器。In this paper, basis on this phenomenon, from the aspects of method, regulation and computer decision support of investment control, a complete system on control investment in the period of design is established by application of ve, quota design and lcc theories
本文針對這一現象，從投資控制的方法、制度和計算機輔助決策支持三方面著手，運用價值工程、限額設計、壽命周期費用分析理論，試圖建立一整套設計階段投資控制的完整體系。Machine tool ball screws - methods of calculating dynamic and static load and life ratings
機床滾珠絲杠.第1部分:動載荷和靜載荷及額定壽命計算方法In 2002, the personal spentable average income was 11500 yuan ; the peasant personal average net income is 5532 yuan ; the city ' s personal average bank saving balance is 13130 yuan ; the engel quotiety is 37. 9 % and 38. 9 % respectively for city and township residents ; the living condition and the health of residents are improving ; the personal average expected age is 75. 4
全市居民人均儲蓄存款余額為13130元，城鎮和農村居民恩格爾系數分別為37 . 9 %和38 . 9 % ，人居環境不斷改善，健康水平逐年提高，人均期望壽命達到75 . 4歲。分享友人