Sunday,06/11/2022
In the 3-phase star-shaped electrical system in Vietnam, the neutral wire has the function of balancing the voltage between the phases. Therefore, if the system loses neutral, the voltage of the phase wires in the system will immediately change, often increasing very high compared to the standard, called continuous overvoltage exceeding the tolerance limit of the electrical equipment, which will cause fire or explosion or immediately reduce the capacity of the electrical equipment.