short-circuit voltage

As we know, many power quality problems are caused by the voltage sags. Three-phase voltage sag simulator is used as a tool to evaluate the effects of momentary voltage sag and voltage short interruptions on industrial load.

众所周知，很多电能质量问题是由电压暂降引起的，三相电压暂降故障模拟器被用来作为一种评估电源电压暂降和电压短时中断对用电设备影响的试验装置。

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This paper provides a new method for fast qualitatively detecting the disturbance sources, which is based on their statistical instantaneous characteristics. There are four examples imitated under MATLAB including harmonics, voltage sag, voltage swell, short-time transform of voltage dip.

提出一种基于检测点产生的瞬时负荷统计特性快速确认扰动源的方法，展示了该原理在谐波、电压凹陷、电压膨胀、瞬间电压降落四种扰动，在MATLAB下的仿真和计算结果。

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Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total.

监测仪能够完成包括三相电压、三相电流的有效值、功率因数、三相不平衡、电压短期闪变、以及20次内的谐波、谐波相位、谐波失真总量等的测量。

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First, the wavelet coefficients of basic frequency are extracted to identify the short duration disturbance like voltage sag, swell and interruption.

先提取基波频段所在的小波系数将电压凹陷、电压凸起和电压中断分别检测出来；

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This program is greatly saved the cost and can be used in the short close between low-voltage side and high-voltage side.

更大程度的节约了成本。适于高压侧与低压侧开关距离较近的情况下使用。

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Line frequency withstand voltage test is a test-voltage appliance's solid insulation and the capacity short time-voltage.

描述了工频耐受电压试验设备原理、试验变压器容量与泄漏电流整定值之间的关系以及试验时的注意事项.

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Among those several representative short-term power quality disturbances are introduced particularly, and their characteristics are analyzed. They are: voltage sag, voltage swell and voltage interruption;

其中，对几种有代表性的短时电能质量扰动作了详尽而细致的描述，分析了它们的扰动特征，分别是：电压凹陷、电压凸起和电压中断；

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Analysis of Threshold Voltage Temperature Coefficient for Short Channel MOSFETs

短沟道MOST阈值电压温度系数的分析

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To make the over voltage Vs time function of line trap at short time current test by complex frequency field analysis is introduced in this paper.

用复频域分析法求出试验电流作用以后的阻波器上的过电压的函数。

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An outage is a complete loss of voltage usually lasting from as short as 30 cycles up to several hours, or in some cases even days.

断电为完全失去电压，通常持续短至30个周波，长至数小时，甚至某些情况下达数天。

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