voltage of transformation

Influence of Variation of Transformation Ratio of on-load Tap Changer on Voltage of Power System

有载调压变压器变比变化对电力系统电压的影响

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A real-time current detection based on FBD ( Fryze-Buchholz-Dpenbrock) method is pre-sented to detect the harmonic, negative-sequent and zero-sequent currents in three-phase four-wire system, and the essential of the method is the projection transformation of reference voltage.

为了快速、有效地检测出三相四线制电力系统中的谐波、负序和零序电流，提出了一种基于FBD法的电流实时检测方法。

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A constructing method for n-terminal equivalent subnetwork is developed, and a transformation of voltage equations for transposing reference nodes is given.

本文证明了n端子网络的等效电路构造方法，并给出了参考点转移前后的节点方程的转换关系式。

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High voltage TEM observation of thermoelastic martensitic transformation in a Cu-Zn-Al Alloy

Cu-Zn-Al合金中热弹性马氏体的高压电镜观察

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Based on the similarity of the displacement-voltage curves when driving voltage increases and decreases, a method of coordinate transformation has been adopted to set up a new type of simple and applicable hysteresis nonlinearity model of piezoceramic actuator.

基于压电陶瓷执行器位移-电压曲线各升程之间、各回程之间的相似性，采用坐标变换的方法，建立了一种新的简单实用的压电陶瓷执行器的迟滞非线性模型。

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This tester is used to determine the isolation character of the shoe material. Through auto transformation from die bearable phase voltage to a half of the line voltage, the excellent illumination energy conservation mode can be achieved.

本机在测试鞋底或绝缘鞋材所能承受的电压值，以了解其耐电压程度。通过对照明灯具从承受相电压至承受线电压一半的自动转换，实现最优照明节电模式。

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Active component isd and reactive component isq can be obtained by coordinate revolution transformation on the basis of stator voltage vector orientation. Then the low pass filter and the inverse transformation are used to get the three-phase currents in ABC coordinate systems.

该方法通过基于定子电压矢量定向的旋转坐标变换，得到的定子电流的有功分量isd和无功分量isq，低通滤波后再反旋转变换到ABC坐标系下，从而进行电流的极性判断。

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