Experimental system for ground voltage distribution under impact of double-pole-plate test
An experimental system and voltage distribution technology, applied in the direction of only measuring voltage, measuring current/voltage, measuring electricity, etc., can solve the problems of low accuracy, no surface potential distribution, complicated operation process, etc., and achieve convenient layout and operation Effect
Inactive Publication Date: 2017-09-22
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0003] At present, there is no effective monitoring method for the potential distribution of the surface. Usually, only the subsurface flow in a certain direction can be measured, and the surface potential distribution can be inferred from the subsurface flow. The operation process is complicated and the accuracy is low. In the specific implementation process Very inconvenient
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Embodiment Construction
[0022] The purpose of the present invention is to provide an experimental system for testing the voltage distribution in the ground under impact by using a bipolar plate, including a power frequency power supply module, an impulse current generation module, a copper rod electrode, a grounding grid, a flat copper ground wire, an insulated overhead wire, and a host computer , high-speed data acquisition module card, and bipolar plate voltage acquisition module; all the above modules form a complete experimental system, which is convenient and efficient, and can be used for experimental analysis. At the same time, the present invention provides a calculation method for the voltage distribution of the impact ground that is attached to the developed system.
[0023] In order to enable those who use the device to better understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] refer to figure 1 ...
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The invention discloses an experimental system for ground voltage distribution under impact of double-pole-plate test. An impact current generation module 202 forms a loop via a copper bar electrode group and a ground net 13; a host computer 204 is in signal connection with the impact current generation module 202 and a high-speed data collection card 205; a double-pole-plate voltage collection module 0 transmits a measured voltage signal to the high-speed data collection card 205 and the host computer; all the above modules form the complete experimental system; the copper bar electrode group is formed by connecting copper bar electrodes in series by a flat copper wire 11; and the ground net 14 is arranged in a circular center position of a circular area enclosed by the flat copper wire 11. The double-pole-plate voltage collection module can placed conveniently in any direction of the ground, currents in two directions in the land surface can be monitored at the same time, and the accuracy is higher.
Description
technical field [0001] The invention relates to an experimental system for testing underground voltage distribution under impact by using a bipolar plate. The invention also relates to a calculation method of the earth surface potential gradient applied to the device. Background technique [0002] The tower grounding grid plays the role of quickly discharging fault current and lightning current, reducing the potential of the tower, and ensuring the safety of nearby equipment and personal safety. It is an important guarantee for the reliable operation of the power system. There will be a certain electric potential in the place. The ground surface near the lightning strike point will show a certain potential distribution. If there is a person or animal near the lightning strike point at this time, the potential difference between the two points will act on the human or animal due to standing or walking at two different points on the ground surface. , may cause injury or deat...
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IPC IPC(8): G01R31/00G01R19/00
CPCG01R31/00G01R19/0084
Inventor 周利军王朋成梅诚徐晗王路伽郭蕾蔡君懿唐浩龙何健
Owner SOUTHWEST JIAOTONG UNIV