Development of Impulse Heavy Current Grounding Test System

DOI

10.2991/icecee-15.2015.295How to use a DOI?

Keywords

impulse heavy current; lightning wave; grounding test; circular returning electrode; split type impulse current generator

Abstract

A impulse heavy current grounding test system is designed to research impulse characteristics of grounding devices.Structure and test ability of the system are introduced. The system is composed of four impulse current generators symmetrically installed around a return electrode with 20m radius. Each generator is designed by low-conductance type and it’s maximum charging voltage is 1000kV. The generators are charging and discharging synchronously. The loop inductance is reduced in this system and the current output capability is enhanced. The system can simulate lightning current diffusion under the ground, and generate multiple impulse waveforms on high peak current. When load resistance equals 4 , an 8/20 s lightning impulse current of peak value 100kA is generated.When load resistance equals 28.49 , a 15kA 2.6/50 s lightning impulse current is provided.The test system is helpful for further research of grounding devices’ impulse characteristic and the electrode spark effect.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Xianghan Wang
AU  - Min Dai
AU  - Qinghua Peng
PY  - 2015/06
DA  - 2015/06
TI  - Development of Impulse Heavy Current Grounding Test System
BT  - Proceedings of the 2015 International Conference on Electrical, Computer Engineering and Electronics
PB  - Atlantis Press
SP  - 1565
EP  - 1571
SN  - 2352-538X
UR  - https://doi.org/10.2991/icecee-15.2015.295
DO  - 10.2991/icecee-15.2015.295
ID  - Wang2015/06
ER  -