Research for Forming up the Controlling Diagram Utilizing the Connection of a LV Resistor on Voltage Transformer’s Open-Triagle Coil to Reduce over Voltage Caused by Earth Fault in 6 kV Grid of QuangNinh Underground Mines
E3S Web Conf., 35 (2018) 05001
DOI: https://doi.org/10.1051/e3sconf/20183505001