1) lightning intruding over-voltage
雷电侵入波过电压
1.
There are many factors affecting the lightning intruding over-voltage in substation, except impulse corona and the tower model, the mode and length of GIS outgoing line are also the factors.
为使模拟计算结果更接近实际,需要研究雷电侵入波过电压计算模型的误差及影响因素,基于输电线路的伏库特性,用简单的电路模型模拟输电线路电晕特性,建立了集中电感、单波阻和多波阻3种杆塔模型;研究了电晕效应对雷电过电压及杆塔模型对变电站雷电侵入波过电压计算结果的影响。
2) lightning intruding surge
雷电侵入波
1.
The simulation of protection of lightning intruding surge is the important content in 500kV substation,which is researched in-depth by many electric power experiment research institutes and power design institutes.
针对500 kV HGIS新型设备不断涌现,以往建立的变电站雷电侵入波计算模型需要改进的问题,采用HGIS新型设备的某500kV变电站,分析设备生产厂家提供的HGIS结构参数和试验参数,建立其雷电过电压计算模型,并结合以往采用常规设备变电站的设计经验,优化变电站雷电过电压计算方法,采用国际通用的EMTP电磁暂态仿真计算程序,对500kV HGIS变电站的雷电侵入波作了较为深入的计算分析和研究,提出了该工程针对雷电过电压500kV母线侧可不加装避雷器,出线侧需加装避雷器的配置方案,该研究可供变电站雷电过电压建模仿真计算参考。
3) lightning incoming surge
雷电侵入波
1.
Effect of 500 kV substation operation mode and phase angle of applied voltage on lightning incoming surge;
500kV变电站运行方式及工频相角对雷电侵入波过电压的影响
2.
In digital simulation of lightning incoming surge protection for substation, the simulation methods of towcr model and insulator strings flashovcr model, the scloction of light-ning strike spot and so on give the great influcnces on the magnitute and thc wave shape of the lightning surges coming into the substation.
在变电站雷电侵入波保护数字模拟中,铁塔馍型、绝缘子闪络模型的模拟方法以及雷击地点的选择等对于因变电站近区雷击形成的雷电侵入波的幅值和波形会带来很大的影响,探讨采用不向模拟方法对上述模型模拟结果带来的影响、计算结果差异的原因进行了分析。
3.
There are two source of lightning stroke damage in a substation: directlightning stroke and lightning incoming surge.
因此,在进行工程规划和设计的过程中,对雷电侵入波在变电站电气设备上所产生的过电压进行分析计算,找出过电压分布和变化的规律,进而确定有关电气设备的绝缘配合,从技术上和经济上限制雷电侵入波过电压,以此来降低设备绝缘水平,有效地减少设备制造成本,合理压缩工程造价。
4) lightning intruding waves
雷电侵入波
1.
In the lightning intensified area at South China, the accidents of the internal insulation breakdown and explosion of temporary opening SF6 circuit breakers or current transformers caused by lightning intruding waves occurred many times in recent years.
近年来南方多雷地区发生多起由雷电侵入波过电压引起的暂时分闸的SF6断路器或电流互感器内部绝缘击穿爆炸的事故。
5) Lightning wave intrusion
雷电波侵入
6) lightning invasion wave
雷电入侵波
1.
Taking the 35 kV Xiashan substation of Dexing Copper Mine as an example,ATP-EMTP software is used to simulate the lightning invasion wave in the substation,and some corresponding measures are put forward for lightning protection.
分析了近年来德兴铜矿的防雷现状,以35kV下山变电站为例,采用ATP-EMTP软件对变电站的雷电入侵波进行仿真分析,并提出了相应的防雷措施,对采取各种措施后变电站的入侵波进行仿真分析,结果表明所采取措施是有效的。
补充资料:标准雷电冲击电压波形(见冲击电压发生器)
标准雷电冲击电压波形(见冲击电压发生器)
standard lightning impulse voltage waveform
b一oozhun le一d一on ehongl一d一onyo boxing标准雷电冲击电压波形(standard lightningimpulse voltage waveform)见冲击电压发生器。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条