For wiring a 220-volt AC voltage regulator, the process is relatively straightforward. The input side of the voltage regulator consists of the fire line (L line) and the zero line (N line), and the output side is connected to these two lines as well. First, make sure that the regulator is well packaged and check that the shell, meter and other components are not damaged before use. Plug the input terminals into the distribution board and install a fuse matching the power of the unit for safety. When wiring, make sure the voltage of the appliance is 220V to avoid wrong connection.
Installation steps are as follows: first, turn on the regulator power switch and observe whether the work indicator and delay indicator light up. In the case of no power output, wait for 3-7 seconds to confirm whether the indicator light shows 220V normally. when the output voltage is stable at about 220V, then turn on the power supply of the power-using equipment. The voltage regulator will automatically adjust the voltage to ensure normal power supply.
When connecting wires, be sure to choose copper wires with sufficient cross-sectional area to prevent overheating and voltage drop. In the case of a two-phase regulator, connections can be made according to the schematic provided. For regulators with a capacity of 2KVA or more, it is recommended to use terminal connections and ensure that the screws are tight to minimize the risk of heat generation in the joints.