Overvoltage protection of voltage regulator

When the output voltage exceeds the protection value of the voltage regulator (the phase voltage protection value is adjusted to 250V ± 5V at the factory), the voltage regulator automatically protects, reduces or cuts off the output voltage of the voltage regulator, and the overvoltage indicator light is on. The user should immediately shut down and check the grid voltage or voltage regulator. When the voltage regulator is working, if there is a shaking phenomenon in the output voltage, it may be due to heavy capacitive or inductive loads. Please check the wire diameter and connection point quality of the power grid line and solve it.
If the voltage regulator remains in an overvoltage protection state after starting, please check whether the voltage regulator potentiometer is adjusted normally and whether the grid voltage exceeds the normal working range of the voltage regulator. Close the voltage regulator switch, stabilize the output voltage before turning on the electrical equipment, then turn off and follow the reverse program.