降壓器 的英文怎麼說
中文拼音 [jiàngyāqì]
降壓器
英文
dropper-
In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中,如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增,本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值,以便在提高采樣率的同時降低噪聲誤差的影響,並將其應用於基於32位浮點dsp的新型變壓器保護裝置。This paper explains the effective encouraging mechanism of electrovalence at present, analyses the close relationship between the primary transformer capacity for electric power using in the enterprise and the basic electricity expenses and the electricity in peak time, the relationship between the power factor and the electricity expenses per degree. the ways and measures of reducing electric cost and decreasing electricity expenses expenditurze are proposed
通過闡述現行電價政策的有效激勵機制,分析了企業用電主變壓器容量與基本電費和峰谷分時用電及企業功率因數與電度電費的密切聯系,提出了企業降低用電成本、減少電費支出的途徑和措施。The loss of the transformers accounts for largish proportion in the loss of the power system, so realizing economical operation of transformers is one of the effective measure to readuce loss and save energy. but from existing status of this field, how to effectively realize economical operation of transformers has not been done very well. this dissertation main researches how to effectively actualize on - line economical operation of transformers base on the existing scada system and equipments of the area power network
在電力網損中變壓器的損耗佔有相當大的比例,故實現變壓器經濟運行是降低網損、節約能源的有效手段之一。但綜合國內外的研究現狀,如何有效地實施變壓器經濟運行還沒有得到很好解決。本文著重研究了在地區電網現有的scada系統和設備上實現在線變壓器經濟運行的解決方法。Drop passives : matching transformers 75 ohm to 300 ohm
無源電壓降:匹配變壓器75ohm到300ohmA step-down transformer has a turns ratio less than 1.
降壓變壓器的匝數比小於1。It acts on one of the key regulators of blood pressure by targeting rennin , and provides significant blood pressure reduction for a full 24 hours and is generally well tolerated
該藥主要作用於腎素這個關鍵的血壓調節器,並且能夠提供持續24小時的顯著降壓效應,而且耐受性良好。Water wave pump combines the functions of air wave charger and water hammer pump to show fine performance, where the total energy of inflow is redistributed to heighten the presure of a part of the the flow to the desired level whereas for the rest of flow a low level of pressure is maintained, which causes moving water with high energy to reach to a higher place
水波泵是一種巧妙地綜合氣波增壓器和水錘泵功能的全新的水泵,它通過合理利用水波動力的特殊性質,將來流中的總體能量進行重新分配,使一部分來流水提高到所需的高壓力,而其餘部分水則降到較低的壓力,即完成一個大多數能量向部分來流水轉移的過程。It decreased the power consuming and the capacity of transformer, and then the benefit of the mining bereau was raised
該項措施既降低了能耗也減少了變壓器的容量,提高了礦務局的效益。Forth, chaos control on buck converter in dc / dc converter is studied
第四,研究了dc / dc功率變換器中降壓buck變換器的控制問題。Then, we present a schematic of buck converter by using sliding mode control and then design a circuit based on it
然後提出了降壓buck變換器的滑動模實現方案,並設計了滑動模控制的buck變換器的電路實現方案。According to the equalization techniques introduced first, the thesis chooses the bidirectional buck - boost converter as the main equalization circuit, with the introduction of equalization strategy followed
首先,通過對均衡技術的研究,選用了基於雙向升降壓變換器作為均衡主電路,並對均衡控制策略進行了探討。During the high - voltage device design, the thick epitaxial layer ldmos which is compatible with current technology was researched. this device used piecewise vld and multiple region structure f reduce field layer. the using of the f reduce field layer effectively reduce the surface electric field of the device, shorten the length of its drift region, enlarge the choice of range of the ion implant dose of the p layer, and effectively restrain the disadvantageously affection on the breakdown voltage of the interface charge qss
在高壓器件研究中對與現有工藝相兼容厚外延ldmos進行研究,該結構採用分段變摻雜多區p ~ -降場層,有效降低器件的表面電場,縮短器件的漂移區長度,增大p ~ -降場層注入劑量的選擇范圍,並有效地抑制界面電荷qss對器件耐壓的不利影響。This converter includes not only analog parts such as the bandgap voltage reference, voltage pump, sample / hold unit, one bit comparator of high precision, multiply - by - two and difference unit, but also digital parts such as register and multiplexer. so the design of this type of converter is mixed signal design
模數轉換器的內部電路包括基準源、降壓模塊、抽樣保持電路單元、高精度的1bit比較器、倍乘作差單元等模擬電路模塊,以及寄存器組、選擇器等數字電路模塊,屬于數模混合電路。This paper studies the variable - voltage energy saving theory and its implementation for asynchronous motor with light load, compares several kinds of scheme of improving efficiency in detail and confirms the variable - voltage energy saving method, that is adjusting the input voltage by detecting the iron loss and copper loss of motor directly. in addition, the directness *, simpleness and availability of the method are verified by the emulational experimental results with simulink of the matlab. the circuit of the general inverter based on the tms320f240 dsp was used in this paper, and the practicable program was compiled
本文分析了異步電動機輕載時降壓節能運行的原理,對幾種提高效率的方案進行了比較,確定了通過直接檢測電動機鐵損和銅損來實時調節輸入電壓以達到高效節能目的的控制方法,應用matlab軟體對系統進行模擬,在基於tms320f240dsp的通用型變頻器上編制了實用化的程序,形成了完整的樣機,對其進行了測試,並給出了試驗結果。Firstly, the thesis briefly reviews the history of voltage and reactive power control technology, focusing on the defects of the equipment in use. then, with the theoretical analysis and the discussion on voltage and the characteristic of power system as well as the basic principle of voltage and reactive power control, the thesis makes a research on the character of voltage and reactive power control and interprets the controlling regularity of substation. in addition, with the consideration of the changes of transformer tips and the combined influence of capacity groups and reactive power and voltage, the thesis makes adjustment suggestion to the different operating - zones of voltage and reactive power
本文從降低網損和提高變電站自動化水平著眼,對變電站電壓無功控制應用方面的問題進行了研究,本文首先簡要回顧電壓無功控制的發展概況,著重指出了現有電壓無功控制裝置的缺陷;通過理論分析,在討論電力系統電壓、無功調節特點以及電壓無功總體控制原則的基礎上討論了變電站電壓、無功控制特性以及控制原理,給出了變電站電壓無功的控制規律;考慮了變壓器分接頭的變化及電容器組的投切對無功和電壓的綜合影響,針對電壓、無功的各種運行控制區域給出了相應調節策略。Shanghai xingzhong transformer limited company is the profession produces the profession business enterprise of various transformer, having obtained the iso9001 quantity management system attestation. the sg that company produce - three concern with type transformer, dg - single mutually transformer, bk - bkc - jbk3 series control transformer, qzb - three decline to press to start mutually to pound at transformer etc. product from the transformer of and neon lights, wear the knife for the domestic and international customer broadly, parts of products is already to export the overseas with the customer
上海興中變壓器有限公司系專業生產各類變壓器的專業企業,已經取得iso9001質量管理體系認證。公司生產的sg -三相干式變壓器dg -單相變壓器bk - bkc - jbk3 5系列控制變壓器qzb -三相降壓啟動自耦變壓器及霓虹燈沖擊變壓器等產品,廣泛地為國內外用戶配套,部分產品已隨用戶出口海外。Leaving the rated load, especially with low load and free running operation, ihe efficiency of turbocharger and ratio boost pressure decrease, leading to the shortage of air in cylinders and worsening of combustion, and the economic, power and exhaust performances deteriorate
當偏離標定點,尤其在低負荷和空轉工況工作時,增壓器效率降低,增壓壓力明顯下降,導致氣缸供氣不足,缸內燃燒不良,柴油機的經濟性能、動力性能和排放性能將嚴重惡化。Measuring engine transient process data in ca1258p1k2l11t1 truck in accelerated mode, recording and analyzing the data, then analysis the test error. 4. building model and simulating two typical running mode ? fixed 6th gear acceleration with initial vehicle speed 40km / h and gear change acceleration starting with 2nd gear, comparing calculated result with test result, revising transient process simulation model and analyzing error between calculation
本文基於ca1258p1k2l11t1載重卡車對ca6df2 - 26發動機的瞬變工況進行試驗和模擬計算,結果表明: 1 ) gt - power軟體可以很好的模擬、分析、預測發動機瞬變過程,模擬計算的結果與試驗結果很接近,試驗證明,預測分析指出的改進方向是正確的; 2 )加裝電動增壓器可以降低整車使用油耗,改善低速煙度排放,縮短加速時間,改善整車的加速響應; 3 ) gt - power軟體預測分析配合發動機和整車試驗是分析、解決發動機瞬變過程的有力工具。The principle to reduce no - load loss in transformer by multi - joint lamination method is introduced. the reasonable joint structure in core is presented
摘要介紹了用鐵心多級接縫疊積方式降低變壓器空載損耗的機理,提出了合理的鐵心接縫結構。In famous constructions and key projects such as capital international airport, sanxia three gorges hydropower project, nanjing metro subway, qingdao good - world sea palace, jinan railroad sub - bureau, suzhou amusement park, beijing 1st heating power plant, china 2nd autombile plant, xian peace villa, our products continue to operate safely
其技術性能指標達到目前國內同類產品的領先水平,其空載損耗比s11型配電變壓器的空載損耗降低60以上。同時,由於本產品採用全密封結構,絕緣油和絕緣介質不與空氣接觸,因而可在潮濕的環境中運行,是城市和農村配電網路中理想的配電設備。分享友人