IMPULSE IMPEDANCE OF GROUNDING GRIDS.

被引：0
|
作者：
Gupta, B.R.
Thapar, B.
机构：
来源：
| 1979年
关键词：
LIGHTNING PROTECTION - Electrodes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
When an impulse current is fed to a grounding system, its impulse impedance is defined as the ratio of the peak value of the voltage developed at the feeding point to the peak value of the current. A method and an empirical formula to calculate the inductance of square grounding grids fed either at the center or at one of the corners is presented. Empirical formulae for the effective are and impulse coefficient for center-fed and corner-fed square grids are determined. The validity of the analytical method has been verified experimentally with model tests. It is shown that the effect of soil ionization on the impulse impedance of grounding grids can be ignored for grounding grids in high-voltage substations.
引用
收藏
相关论文
共 50 条
  • [21] Transient impedance of grounding grids with different soil models
    Stracqualursi, Erika
    Araneo, Rodolfo
    2021 21ST IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2021 5TH IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC/I&CPS EUROPE), 2021,
  • [22] Impulse Impedance Modeling and Application of Tower Grounding Device
    Guo L.
    Gu W.
    Liu B.
    Zeng Y.
    Chen S.
    Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, 2020, 35 (10): : 2239 - 2247
  • [23] The behaviour of Hertzian grids.
    Gans, R
    ANNALEN DER PHYSIK, 1920, 61 (05) : 447 - 464
  • [24] Continuous Galvanizing of Wire Grids.
    Planert, Claus
    Harasim, Dietmar
    Eberlein, Guenter
    1978, 64 (04): : 134 - 136
  • [25] DISPLACEMENT APPROACH FOR IRREGULAR GRIDS.
    Pandit, G.S.
    Gupta, S.P.
    Indian Concrete Journal, 1980, 54 (09): : 238 - 244
  • [26] Mischoxydphases with incomplete oxygen grids.
    Sillen, LG
    Aurivillius, B
    NATURWISSENSCHAFTEN, 1939, 27 : 388 - 389
  • [27] Study on Impulse Characteristics of 35kV Substation Grounding Grids
    Si Wenrong
    Fu Chenzhao
    Su Lei
    Zhu Dakang
    Xu Zhibing
    TENCON 2015 - 2015 IEEE REGION 10 CONFERENCE, 2015,
  • [28] Calculation of the impulse impedance of a long grounding rod in sandy soil
    Annenkov, VZ
    ELECTRICAL TECHNOLOGY RUSSIA, 1998, (02): : 38 - 45
  • [29] Effect of soil characteristics on the impulse grounding resistance of substation ground grids
    Gao, Bing
    Wang, Zhengping
    Wei, Minglei
    BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY, 2019, 125 : 107 - 108
  • [30] Lightning impulse performances of grounding grids for substations considering soil ionization
    Zeng, Rong
    Gong, Xuehai
    He, Jinliang
    Zhang, Bo
    Gao, Yanqing
    IEEE TRANSACTIONS ON POWER DELIVERY, 2008, 23 (02) : 667 - 675
12345