| 1. | Then put the magnetic tapes on the channel models in different ways to detect the lightning parameters
利用冲击电流发生器在雷电流通道中产生模拟雷电流，将磁带按照不同方式放置在雷电流通道上记录雷电流。 |
| 2. | The model considers peak value of lightning current , tower grounding resistance , tower style , line surge impedance , power frequency voltage and distance between towers
模型中考虑了雷电流幅值、杆塔冲击接地电阻、杆塔具体形状、尺寸、杆塔波阻抗、工频电压及档距等因素的影响。 |
| 3. | Compared with the traditional methods , the proposed ideal has the following advantages such as material cheapness , highly precise measure and it can support the lightning census in large regions
相对于现有的测量方法而言磁带法测量雷电流参数具有材料便宜、测试精度高、适于大范围雷电普查使用的特点。 |
| 4. | This paper deeply discussed the mechanism of magnetic tape detector , mainly focused on the tape detector appliance in engineering fields , making it not only measure the lightning current peak but also its supreme deepness . my paper is mainly made up of the following parts
本论文对雷电参数测量磁带法的机理进行了较为深入的探讨，着重于开拓磁带测量雷电参数应用领域方面的研究，使磁带既能测量雷电流峰值又能测量雷电流最大陡度。 |
| 5. | Obtained by emtp program and the egm , this paper studies on lightning protection performance on 500kv double circuit transmission line the distributed parameter model of tower is built when analyzing the back stroking lightning protection performance for double circuit line , it can truly reflect the spreading course of lightning current on the tower , furthermore , considering the randomness of working voltage ' s phase when lightning strokes the top tower and supposing the probability of lightning appearing arbitrary phase in a cycle of ac is equal , this paper brings forward the statistical method to calculate the rate of back stroking on double circuit line
本文利用emtp程序、击距法对500kv同杆双回线路的耐雷性能进行了研究。在分析同杆双回线路的反击耐雷性能时，建立了杆塔的分布参数计算模型，此模型可以真实地反映雷电流在杆塔上的传播过程。并针对雷击塔顶时，导线运行电压相位角的随机性，本文假定雷击出现于交流一周期的任一角度区间内的概率相等，提出了利用统计法计算同杆双回线路的反击跳闸率。 |
| 6. | Meanwhile it can filter the waveform and gather the envelope and calculation the current peak and max steepness of lightning by length of erased magnetic record . thirdly we need analyze the difference of length of erased magnetic record between kinds magnetic tape or pre - recorded sine wave on magnetic tape , and finding the min and max lightning current that can be recorded by magnetic tape . then we confirm the type of the magnetic tapes and the way of installing which fit to the line towers
同时对该波形进行滤波消噪，提取包络线计算磁带消磁长度和雷电流峰值及最大陡度第三部分根据mtlcd得出的数据分析不同雷电流通道下不同磁带、不同预录正弦波消磁长度的差异及磁带可以记录的最小雷电流和最大雷电流，找到可以在输电铁塔角钢上安装使用的磁带及其放置方式。 |
| 7. | This is significant for analyzing lightning accident completely and accurately and finding out the cause of lightning accident as aspect of lightning current peak and lightning steepness . magnetic tape detector can offer a new way for developing highly precise lightning census in large region from lightning current peak and lightning steepness
这对于全面、准确的记录雷电参数，从留电流峰值与雳电流最大陡度两个方面综合分析与确定雳击事故的原由具有非常重要的意义，并为从雷电流峰值与雳电流最大陡度两个方面开展大范围高精度的雷电普查工作提供新的手段。 |
| 8. | Hopefully , the results obtained from this paper would prompt the further research of the degradation and destruction mechanisms of zinc oxide varistors under multipulse current strike , and offer suggestion on revising the lightning test standards and improving the product quality of zinc oxide varistors , etc
本文的工作和结论有助于进一步研究氧化锌电阻在多脉冲电流作用下的冲击老化破坏机理，另外也为修改我国氧化锌电阻的雷电流试验标准提供理论依据，并为改进氧化锌电阻生产和提高产品质量提出了建设性意见。 |
| 9. | Measuring of lightning parameters is the base work of lightning research . it is very important for researching the lightning characteristics , analyzing the accident of lightning , identifying the responsibility of lightning strike outage accident and discussing the strategies of lightning protection . it also can provide precise original data of atmosphere over - voltage for designing insulation co - ordination
雷电流参数的测量是进行雷电研究的基础工作，对于研究雷电特性、分析雷害事故、鉴定雷击跳闸事故责任、探讨防雷对策及为绝缘配合设计提供精确的大气过电压原始数据均具有十分重要的意义。 |
| 10. | This study in this paper shows that the proposed method is superior to the present method for the lightning current measuring in the economical , practicability and precision of measurement . another important point is that the magnetic tape detector can measure the lightning steepness directly , largely expand the magnetic tape appliance field
本文研究表明磁带法在经济性、实用性、精确性上远远优于现有的其它雷电测量方法，尤其重要的是磁带法能够直接测量雷电流最大陡度，极大的扩展了磁带法的应用空间。 |
