The Influence Of Single-phase Load Voltage Variation When Automatic Voltage Regulator Adjusts Neutral Line

If the voltage of the neutral line is adjusted during the three phase automatic voltage stabilizer voltage regulation process, it may disrupt the single-phase circuit. In a single-phase power supply system, the live wire and neutral wire form a loop, and the load voltage depends on the potential difference between them. When the neutral voltage is adjusted by voltage stabilizer 380v, the actual voltage supplied to the load may deviate from the expected rated value, resulting in an increase in the single-phase load voltage.

This overvoltage phenomenon not only affects equipment performance but may also put stress on the insulation system and sensitive electronic components of electrical equipment, triggering abnormal events. It is generally recommended to strictly distinguish the electrical treatment of live wire and neutral wire in the voltage regulation scheme design to avoid the whole house automatic voltage regulator from affecting the voltage reference at the output terminal by adjusting the neutral wire, thereby creating an unexpected single-phase load overvoltage state.