According to the purchase of power regulator, can be calculated according to 0.75 mm per kilowatt, suitable wire connected regulator input and output (Note: the installation should be strictly according to the wiring label wiring, regulators can not be omitted and wrong, special attention is paid to the firing line and the zero line shall not be reversed, the zero line and the ground is not be confused, ground wire and the zero line can not be omitted). Open the regulator switch panel output voltage meter should be instructed to 220V, the power indicator on the panel, said the regulator had normal work, such as the need to adjust the voltage, please adjust the machine's circuit board pressure regulating potentiometer clockwise to adjust the output voltage increases, reducing the output voltage regulation (counterclockwise adjusting close load).

Safety device of voltage regulator:

The following 3KVA regulator with the fuse for overload or short-circuit protection, overload or short-circuit protection switch as a miniature circuit breaker or small air AC voltage above 5KVA, in work, such as tripping fuse or automatic air circuit breaker shall be shut down and check the load regulator.

Overvoltage protection of voltage regulator:

When the output voltage exceeds the voltage regulator protection value (factory phase voltage protection value is adjusted to 250V + 5V), voltage regulator automatic protection, reduce or cut off the regulator output voltage, overvoltage and indicator lights, users should immediately check the voltage regulator or shutdown. When the output voltage regulator, such as jitter phenomenon, may be capacitive or inductive load is too heavy, the user can adjust the switch cabinet on the circuit board gear can eliminate the chattering phenomenon (close load adjustment), machine factory, the switch is in the normal state, users do not tamper. If the phenomenon of jitter can not be eliminated, it may be caused by the excessive internal resistance of the power grid line or the serious distortion of the input waveform. Please check the line diameter and connection point quality of the power grid and solve them.

When the voltage regulator is started, it is always in the state of overvoltage protection. Please check whether the voltage regulating potentiometer is normal and the voltage of the grid is beyond the normal voltage regulation range of the regulator. Switch on voltage regulator, output voltage is stable, then switch on power equipment, power off and reverse program.