同时还发现,经过重结晶后,电树的起始电压也升高了。
It was also found that the tree initiation voltage increases after re - crystallizing.
电树的起始电压很大程度上取决于半结晶高分子材料的形态结构。
It is well known that electrical trees are greatly influenced by the morphological structure in semi - crystalline polymers.
采用本发明,有利于实现斜坡起始电压的动态调整,提高图像质量。
The invention is beneficial to realizing the dynamic adjustment of the slope initiation voltage and improving the image quality.
研究了固体绝缘表面电荷对不均匀电场直流电晕起始电压、伏安特性的影响。
The effect of insulator surface charges on DC corona initial voltage and V-I characteristic in non-uniform field is studied.
提供了一种考虑到微制造工艺实际的对微胶体推进器的起始电压进行估计的方法。
The paper presents a methodology to estimate the onset voltage of a micro fabricated colloid thruster.
起始电压低于0.4 V,是一种输出电流范围又宽、稳定性又高的高性能器件。
It is a kind of excellent device with both high stability and wide current range.
本文主要介绍了不同的热处理条件对聚乙烯(PE)薄膜材料电树的起始电压的影响。
This paper presents the effects of different annealing conditions on the tree initiation of polyethylene (PE) films.
文中通过实验测量和模拟计算,得到了不同气压湿度下的正直流电晕起始电压和电晕离子电流。
It was obtained through experiment and simulation that positive DC corona inception voltage and corona ion current under different air pressure and humidity conditions.
随着油的流速增大,发生局部放电的起始电压得到提高,流速的增大有利于提高油的绝缘强度。
Initiation voltage was enhanced with the increase of velocity. The increase of velocity was good to the strength of oil insulation.
随着油的温度升高,发生局部放电的起始电压得到提高,温度的升高有利于提高油的绝缘强度。
Initiation voltage was enhanced with the increase of temperature. The increase of temperature was good to the strength of oil insulation.
在正负极性直流预压短路树枝试验中,分别提高试样短路树枝起始电压26 8%和36 3%。
The initiation voltage of short circuit treeing after the positive and the negative dc pre-stress increase by 26 8% and 36 3% respectively.
在较大分子的气体(如SF_6)中,正、负电晕起始电压有明显差别,而且随着气体压强增加而增大。
The results show that in SF6 there is obvious difference between the positive and negative onset voltage and the difference is increased by an increase of gas pressure.
结果表明,PTFE绝缘子的存在降低了微粒运动起始电压,而且绝缘子的形状也会影响绝缘子附近微粒运动的起始电压。
The result shows that the motion threshold voltage declines due to the PTFE spacer, and is affected obviously by the spacer shapes.
当气体压力小于电晕稳定效应的临界压力,或由于温度降低而使压力减小到临界压力时,电晕起始电压随温度的降低而下降。
If the pressure is smaller than the critical one, following the decreasing of the temperature, the breakdown voltages will increase due to the corona stabilization effect.
正常源每一相位的欠压传感:起始电压可在额定值85 - 100%的范围内调节;回动电压可在始动值75 - 98%的范围内调节。
Undervoltage Sensing for Each Phase of Normal Source: pickup voltage is adjustable form 85 to 100 percent of nominal, and dropout voltage is adjustable from 75 to 98 percent of pickup value.
外拖冲击电压的极性与绝缘子表面电荷极性是否相同会影响绝缘子的电晕起始时刻、由流注向先导的转变时间间隔和流注电晕电流。
The polarity of impulse voltage and the polarity of insulator surface electric charge can affect the corona initial time of insulator, the change time - interval and the corona current.
空气绝缘起始放电电压在不同压力下表现出不同的特征。
The initial discharge voltage using pressured air as insulation medium has different characters under diverse pressures.
对于电极表面有缺陷的情况,只要选取适当的电极表面轮廓模型,其起始放电电压也是可计算的。
In the case of electrode surface imperfections, the discharge inception voltage can also be calculated provided a suitable electrode surface profile model is chosen.
研究了刷镀起始镀层组织及其影响因素,分析了刷镀方向、刷镀时间、刷镀电压、镀液温度对起始镀层组织的作用。
The microstructure of initial brush plating layer was studied along with its influencing factors as the direction of brush plating, time, voltage and temperature.
大型高起始励磁系统发电机组的电压响应时间对电网的暂态稳定性至关重要。
The reaction time for large thermal generator with high initial response excitation system is very important to the transient stability of the electric grid.
文章指出了现有的起始放电电压计算公式的局限性;
The paper designates the limitation of the existing formula for calculating the inception discharge voltage;
分析表明:突变现象是感应充电进入电晕充电的固有特性,电压降低,电流突然增大,产生突变,且不稳定的起始(着火)电压与电极的结构形式、尺寸、液体介电物理性质有关。
It is found that the instable start (ignition) voltage is related to the structure and the size of electrode as well as to the physical property of liquid electric inductivity.
分析表明:突变现象是感应充电进入电晕充电的固有特性,电压降低,电流突然增大,产生突变,且不稳定的起始(着火)电压与电极的结构形式、尺寸、液体介电物理性质有关。
It is found that the instable start (ignition) voltage is related to the structure and the size of electrode as well as to the physical property of liquid electric inductivity.
应用推荐