冰的电气特性影响输电线路覆冰绝缘子闪络电压。
The flashover voltage of iced insulators of transmission lines is affected by the electrical characteristic of ice.
输电线路覆冰可引起导线舞动、杆塔倾斜、倒塌、断线及绝缘子闪络等问题。
Transmission line regelation may cause conductor galloping, pole leaning or collapse, conductor breaking or insulator flashover etc.
国内外学者对覆冰绝缘子闪络特性进行了大量研究，但是对闪络机理的研究不多。
Therefore, a systematic study of flashover performance and mechanism of insulators covered-with ice has both a very important academic meaning and an engineering value.
覆冰绝缘子伞裙间隙未桥接时，冰凌尖端的放电是影响绝缘子闪络电压的主要因素之一。
The discharge at the top of icicle is one of the main factors influencing flashover voltage when the air gap amid the sheds of ice-covered insulators is not bridged.
针对截波产生的原因，重点分析了雷击变电站终端杆塔使绝缘子闪络产生截波，并引起变压器截波过电压的机理。
The mechanism of chopped wave overvoltage of transformers caused by insulator arc-over chopped wave after lighting stroke terminal tower is analysis emphasize.
污秽合成绝缘子在酸雾、盐雾中闪络电压随污秽程度的增大而降低，随雾水电导率的增加而降低。
The flashover voltage of polluted composite insulators is decreased with increase of SDD and the fog conductivity in acid fog and salt fog.
绝缘子污秽闪络事故严重威胁电力系统的安全可靠运行，目前国内外对污闪机理的研究主要以平板模型为基础。
Pollution flashover accident of insulators may threaten the operation safety of power system, whereas, the research on pollution flashover circuit model is based on the plate model by now.
线路避雷器仅能保护安装了线路避雷器的杆塔自身的线路绝缘子（串）不发生雷击闪络，无外延的雷击保护范围。
The line arresters can only protect the line insulators on the tower equipped with the line arresters from lightning flash and they have no extended protective range.
不同型式染污绝缘子沿爬电距离的闪络电压梯度；
The voltage gradient of five types of polluted insulators according to the leakage distance.
对决定电网绝缘子的清扫周期，有效防止电网大面积污秽闪络事故的发生有明显的作用。
It is evident that the instrument can be applied to determine the time period for cleaning the insulators and to prevent the power network from the accident caused by dirt sparks in a large area.
本文从理论和试验两方面研究了冰雪条件下绝缘子交流闪络特性。
This paper investigated AC flashover performance of insulators covered with snow or ice condition in tow ways of theory and test analysis.
通过研究合成绝缘子不同区段电场大小和随时间变化的态势，对合成绝缘子各自闪络路径进行预测。
By studying the electric field changes and the trend with time of different sections of composite insulators, each composite insulator flashover path is predicted.
陶瓷绝缘子沿面闪络是制约电真空器件绝缘性能、影响设备正常运行的关键因素之一。
Surface flashover of ceramic insulators used in vacuum devices restricts the insulating properties of the vacuum devices.
线路绝缘子发生覆冰闪络故障，对线路安全运行造成了威胁。
The menace of transmission line safe operation is the ice flashover accident of transmission line insulator.
文章通过试验探索了合成绝缘子“不明原因”闪络的原因。
Through experiments the reason of unidentified flashover of composite insulators is seeked in this paper.
1998年底阳泉地区发生线路绝缘子覆冰闪络故障，对线路安全运行造成了威胁。
The running safety of line was threatened by insulator sleet covering flashover derault of line at the late of 1998.
绝缘子的真空表面绝缘特性研究真空下的高压沿绝缘子表面击穿物理过程，称真空表面闪络过程。
The insulation characteristic of insulator in vacuum is researched in the process of the high voltage breakdown along the insulator surface in vacuum, which is called vacuum surface flashover.
带电覆冰对绝缘子的覆冰状况、覆冰密度和闪络电压均有影响。
For energized icing, icing state, ice density and flashover voltage are affected.
接触网覆冰不仅影响接触线的弛度、支柱的容量，在一定程度上还影响着接触网绝缘子的闪络电压。
Meanwhile, the factors which affect the flashover voltage of ceramic insulators were analyzed, the methods for improving the hold-off voltage were recommended from the in.
本文为绝缘子串在干燥和清洁条件下合成电压闪络特性的实验研究结果。
This paper presents the results of the experimental studies on the flashover characteristics of insulator strings under dry and clean conditions applied with composite voltages.
针对高压绝缘子污秽闪络的巨大危害，采用自由软件设计了绝缘子污秽在线监测系统。
In view of the huge damage of high voltage insulator contamination flashover, an on-line monitoring and measurement system of insulator contamination based on free software is designed.
合成绝缘子具有很好的防污闪特性，但也会发生污秽闪络，这与常规的人工污秽试验仅考虑盐密的影响不无关系。
The polluted flashover voltages of insulators reduce with the increase of salt density or dust density, and both the influences of salt density and dust.
线路绝缘子发生覆冰闪络故障，对线路安全运行造成威胁。
The ice flashover accident of transmission line insulator is harmful for transmission line safe operation. The cause of insulator ice flashover is the ice bridge.
接触网覆冰不仅影响接触线的弛度、支柱的容量，在一定程度上还影响着接触网绝缘子的闪络电压。
The flashover performance of ice-covered XZP-210 insulator strings was investigated and the effects of the string length and arrangement on the icing flashover voltage were analyzed.
接触网覆冰不仅影响接触线的弛度、支柱的容量，在一定程度上还影响着接触网绝缘子的闪络电压。
The flashover performance of ice-covered XZP-210 insulator strings was investigated and the effects of the string length and arrangement on the icing flashover voltage were analyzed.
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