查询词典 flashover

Influence of insulator installation from on its pollution flashover voltage.

绝缘子安装结构对污闪电压的影响。

With the development of national economy and ecological condition deterioration, alone with increase of voltage class and the electrical networks expansion, flashover due to contamination is more outstanding.

随着国民经济的迅速发展和生态环境的恶化，以及输电电压等级的不断提高和电网分布范围的扩大，这一问题越来越突出。

The pollution flashover of outdoor insulation threatens the safe operation of transmission line seriously.

外绝缘的污染放电严重威胁输电线路的安全运行。

ABSTRACT In this thesis, the surface electrical field distribution of polluted post insulators at various stages of flashover is calculated imitatively and measured practically.

本文通过对染污支柱绝缘子闪络过程各阶段电场分布的大量仿真计算和实测，着重从"场"的角度研究了绝缘子污闪过程和污闪机理。

Considering that the existing nonlinear flashover model only suits chamber with single opening,this paper presented a modified model which would be more widely applicable after revising the dimensionless parameters,based on analyzing the calculation methods for smoke neutral plane and outflow mass rate from compartment with multiply openings.

通过实验重现了汽油、柴油、酒精、聚乙烯和木垛的轰燃过程，发现不同液体燃料引发轰燃所需的最小火源面积正比于燃料的蒸发热，反比于燃烧热，轰燃发生时间会随着火源面积的增大而提前。

Examined is the initiation mechanism of flashover along the surface of polytetrafluoroethylene under AC voltage in vacuum.

以聚四氟乙烯为例研究了交流电压下聚合物绝缘材料在真空中沿面闪络发生前的表面发光特性。

It is suggested that, the deeper electron traps can restrain the emission of internal secondary electrons inside the surface layer of material, and the surface flashover voltage is possible to be promoted by enhancing the density of deeper traps.

复合材料中的深陷阱对于抑制材料表面的内二次电子发射有一定的作用，通过提高深陷阱的密度可以在一定程度上提高沿面闪络电压。

The secondary electron emission avalanche model is the most dominant theory of surface flashover in vacuum.

提高晶化温度或延长晶化时间也能在一定程度上提高其表面耐电性能，但是这样做会降低其可加工性能。

By studying the growing situation of AC arc along the simple plane model and measuring of AC arc performance using electrical probe, we obtained the requirement of AC arc to develop along a polluted surface under various pressures and a method to calculate the AC pollution flashover voltage.

通过对沿简单平板染污模型交流电弧发展情况的研究，用探针对交流电弧特性进行了测量，提出了交流电弧的发展条件和一种计算交流污闪电压的方法，得出简单模型交流污闪电压随气压下降而降低的主要原因是由于低气压下所要求的交流电弧发展条件降低。

On December 28, 2004, thirteen faults have happened successively, a large area of ice flashover of 500 kV power system happened and seven 500 kV transmission lines tripped out due to the influence of the sleety climate in central china power grid.

2004年12日28日，由于雨雪天气影响，华中500kV电网发生大面积冰闪，先后发生13次故障，7条500kV线路相继跳闸，为华中电网历史上罕见的事故。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。