Title |
An Analysis and Comparison of Safety Voltage (Step Voltage and Touch Voltage) According to Isolation and Common Grounding System of Large-Scale Photovoltaic Power Plant |
Authors |
이창욱(Chang-Uk Lee) ; 김재철(Jae-Chul Kim) |
DOI |
https://doi.org/10.5370/KIEE.2019.68.11.1458 |
Keywords |
Grounding System; Large-Scale; Photovoltaic; PV Plant; Safety Voltage; Step Voltage; Touch Voltage |
Abstract |
Large-scale photovoltaic power plant facilities have been steadily growing not only in Korea but also in the world. As the importance of designing a large-scale photovoltaic power plant grounding system to prevent human electric shock accidents and equipments damage caused by ground faults are emphasized. In order to prevent human electric shock accidents and equipments damage, the grounding system should be designed to limit the safety voltages(step voltage and touch voltage) when a ground faults. In this paper, the safety voltage of critical facilities for the large-scale photovoltaic power plants are compared when applying fault currents to grounding systems(isolation grounding/common grounding) applied to large-scale photovoltaic power plants with simulation utilizing CDEGS. |