On the basis of comparing the feature of inrush current's grille curve with that of fault current, a novel transformer protection scheme is proposed, which is not affected by add-assist circulation current at delta side on Y/D connection transformer.

在比較勵磁涌流與短路電流網(wǎng)格曲線各自特點的基礎上谁知道A片网址，提出了一種新型變壓器保護方案，該方案不受Y/D接線的變壓器D側(cè)環(huán)流助增作用的影響97免费无码无码人妻视频。

Because the magnetic field is always associated with the current, then the magnetic field is expected to think that it is by another current - displacement current generated.

因為磁場總是與電流相聯(lián)系18禁片免费黄色网站在线播放，則預期的磁場也認為是由另一種電流——位移電流產(chǎn)生的。

Based on nonliner dynamic simulation model of BLDCM.simulation model of speed and double close loops of current are built in adjusting speed system for BLDCM.Through simulation the performance of BLDCM is researched,in the way PI adjustors of speed and current adopted,fuzzy control used in speed loop and PI adjustor used in current loop,which prepares theory base for controller design of high quality BLDCM.

在直流無刷電機非線性動態(tài)仿真模型基礎上建立了轉(zhuǎn)速中文字幕精品网站笫18页、電流雙閉環(huán)直流無刷電機調(diào)速系統(tǒng)仿真模型18黄男人女人色www，對轉(zhuǎn)速、電流環(huán)均采用PI調(diào)節(jié)器及轉(zhuǎn)速環(huán)采用模糊控制器欧美性爱XX多精久久、電流環(huán)采用PI調(diào)節(jié)器的直流無刷電機性能分別進行了仿真研究日本a网址，為高性能直流無刷電機控制器設計提供了理論依據(jù)欧美一区二区日日屄。

The characteristics analysis of two different current -to-voltage convertors,current transformer an reactance transformer ,shows that the current transformer has the same converting effect on the currents with different frequencies,while the reactance transformer transforms has various converting effect.

通過對電流互感器式&電流-電壓&變換器和電抗變壓器式&電流-電壓&變換器變換特性的分析，結(jié)果表明：對于不同頻率的電流18岁免费欢看黄色网站，電流互感器式&電流-電壓&變換器對它們的變換幾乎是相同的98神马午夜。

Is shown in Figure 4-15. The picoammeter reads the current at the last dynode, which is equal to the anode current minus the current flowing to the previous dynode.

皮安計在最后一個倍增管電極處讀取電流，此電流等于陽極電流減去流過前一個倍增管電極的電流插逼AV。

Twenty-nine percent had a current depressive disorder: 20% had major depression, and 9% had a diagnosis of dysthymia or depression not otherwise specified. Twenty-seven percent had a current major anxiety disorder. A current substance abuse diagnosis was found in 19%, and 10% had a psychotic disorder.

當前29%患有抑郁癥：其中20%患有重度抑郁癥老嫖客精品视频在线播放，9%被診斷為心情惡劣或抑郁，無其他指定特征九九C片一级黄片；27%患有焦慮癥永久黄网播放站色视频免费，同時發(fā)現(xiàn)19%有藥物濫用的診斷，10%有精神病丝袜人妻无码中文字幕综合网。

Twenty-nine percent had a current depressie disorder: 20% had major depression, and 9% had a diagnosis of dysthymia or depression not otherwise specified. Twenty-seen percent had a current major anxiety disorder. A current substance abuse diagnosis was found in 19%, and 10% had a psychotic disorder.

當前29%患有抑郁癥：其中20%患有重度抑郁癥seqiqi999，9%被診斷為心情惡劣或抑郁，無其他指定特征香港无码黄色视频；27%患有焦慮癥a色色淫淫，同時發(fā)現(xiàn)19%有藥物濫用的診斷，10%有精神病免费色色的网站。

Research on the status of the applications of superconductor current limiter and solid current limiter based on FACTS techniques was followed by various application schemes proposed for applying series resonant current limiter in extra high voltage grid.

對超導型和基于FACTS技術的固態(tài)故障限流器的應用狀況進行了研究一级免费ww视频，提出了在超高壓電網(wǎng)中串聯(lián)諧振式限流器的幾種應用方案。

The Hilbert modulus is defined as the sum of the square of a signal and its conjugation.Hilbert modulus is used to covert the fundamental component in original phase current to direct current component,the fault characteristics frequency of bar break is transformed into the twice slip frequency.The problem is solved that fault characteristic component in the spectrum analysis of the current is easily to be blanketed by fundamental component and is hard to highlight fault characteristics.

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The basic relationship between the the first half-wave peak value of transient current and the initial firing angles is found by means of analytical method.The practical method is put forward to determine the initial two-phase and the third phase firing angles with the limiting value and the space vector varying track of transient current.And then the subsequent series of firing angles with the even step are calculated by using the speed at the time of re-switching.The suppressive effect to the inrush current is verified with simulation and experiment of rapid soft re-switching control,by which the influence of different speed to rapid soft re-switching course is analyzed besides.3 To analyze the power loss for typical periodically variable running load and deeply study the energy-saving principle and control mode of the intermittent power supply approach. Futhermore,the novel integrated energy-saving control technique is developed on base of the intermittent power supply approach.

通過解析方法找到快速軟投入初始觸發(fā)角與瞬態(tài)電流首半波峰值加熱板之間的基本關系曰韩无码A片免费视频，進而提出了由限流值和空間向量軌跡確定初始兩相和第三相觸發(fā)角的方法，并以固定步長均勻遞減的方式由投入時轉(zhuǎn)速計算出其它后續(xù)觸發(fā)角4455vs永久亚洲；結(jié)合仿真和實驗驗證了快速軟投入對沖擊電流的抑制作用欧美大码变态另类，并分析了不同轉(zhuǎn)速下投入時對電源快速軟投入過程的影響。3對典型周期性變工況負載特性進行能耗分析国产二级三级精品，深入研究斷續(xù)供電節(jié)能機理和控制模式影音先锋强奸乱伦av电影，并進一步發(fā)展了以斷續(xù)供電為主的綜合節(jié)能控制新技術。