Firstly, according to the power of the purchased regulator, it can be calculated according to the calculation of 0.75 square millimeter per kilowatt, and the appropriate wire is used to connect the input and output of the voltage regulator. (Note: the wiring should be strictly in accordance with the wiring of the regulator when installing, and cannot be omitted and connected. Wrong, pay special attention to the fact that the live and neutral lines must not be reversed. The neutral and ground lines must not be confused. The ground and neutral lines cannot be omitted. Turn on the regulator switch, the output voltage meter on the panel should indicate 220V, and the power indicator on the panel is on, indicating that the regulator has been working normally. If you need to adjust the voltage, please adjust the machine board to adjust the voltage regulator, adjust the output clockwise. The voltage rises and the output voltage decreases counterclockwise (turn off the load when adjusting).
Regulator safety device:
The regulators below 3KVA use fuses for overload or short-circuit protection. AC regulators above 5KVA use miniature circuit breakers or small air switches for overload or short-circuit protection. When the regulator is working, such as fuse blows or automatic air circuit breaker trips, Shut down to check the load and regulator.
Overvoltage protection of the regulator:
When the output voltage exceeds the regulator protection value (the phase voltage protection value is adjusted to 250V±5V at the factory), the regulator automatically protects, reduces or cuts off the regulator output voltage, and the overvoltage indicator lights up. The user should immediately shut down the switch. Grid voltage or voltage regulator. When the regulator works, if the output voltage is dithered, it may be capacitive or the inductive load is too heavy. The user can adjust the gear position of the switch on the circuit board inside the chassis to eliminate the jitter phenomenon (turn off the load when adjusting), the machine When the factory is shipped, the switch is in a normal state and the user is not allowed to move. If the jitter phenomenon cannot be eliminated, the internal resistance of the input grid line is too large or the input waveform is seriously distorted. Please check the grid line diameter and connection point quality and solve the problem.
If the regulator is always in overvoltage protection after startup, please check if the regulator is normal and the grid voltage is beyond the normal operating regulation range of the regulator. Close the regulator switch, turn on the power supply after the output voltage is stable, shut down and press the reverse program.
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