The Automatic Voltage Regulator's Response Mechanism When The Grid Voltage Deviates From The Set Value.

When 20kva voltage regulator detects that the voltage is higher or lower than a predetermined level, 3 phase automatic voltage stabilizer triggers the internal feedback mechanism, generating an error signal and adjusting the excitation current or switching state based on this signal to bring the output voltage back to the target range. The adjustment actions of national automatic voltage stabilizer may include releasing or absorbing reactive power, changing the transformer tap position, or activating the electronic controller to adjust the output characteristics. If the deviation persists, servo automatic voltage regulator may issue an alarm or switch the system into protection mode, causing the downstream protection relays to activate or the equipment to disconnect from the grid, protecting downstream loads and power facilities from further damage.