2kva automatic voltage regulator: servo voltage stabilizer
The original power regulator relied on the jump of the relay to stabilize the voltage. When the grid voltage fluctuates, the automatic correction circuit of the power stabilizer is activated to activate the internal relay. Forcing the output voltage to stay near the set value, this circuit has the advantage of simple circuit, but the disadvantage is that the voltage regulation accuracy is not high and every time the relay jumps and shifts, it will cause an instantaneous interruption of the power supply and cause spark interference.
A voltage stabilizer is a power supply circuit or power supply equipment that can automatically adjust the output voltage. Its function is to stabilize the power supply voltage that fluctuates greatly and does not meet the requirements of electrical equipment within its set value range so that various circuits or electrical appliances The equipment can work normally under the rated working voltage.
According to the different output properties of the voltage stabilizer, the voltage stabilizer is generally divided into two categories: AC voltage stabilizer (AC stabilized power supply) and DC voltage stabilizer (DC stabilized power supply).
The voltage stabilizer relies on the jump of the relay to stabilize the voltage(industrial servo voltage stabilizer: line voltage stabilizer). When the grid voltage fluctuates slightly, or the opening or closing of other electrical appliances within a certain range, it will cause the automatic correction circuit of the power regulator to start, causing the relay to jump frequently.
High-quality small voltage stabilizers mostly use the method of motor-driven carbon brushes to stabilize the voltage. This type of voltage stabilizer has little interference with electrical equipment and has relatively high voltage stabilization accuracy.
When the output voltage of the regulator is lower than the rated voltage (220V or three-phase 380V), check whether the input voltage is too low. When the rated voltage is reached at no load and the output is lower than the rated voltage under load, this is due to the input line load surface is too small, or the load end exceeds the rated capacity range of the regulator, the line voltage drop is too large when the load is used, and the input voltage is lower than The lower limit of the regulator's adjustment range, at this time, you should replace the thicker input wire or increase the production capacity.
The efficiency of the voltage stabilizer is determined by its power storage capacity and response speed. The power storage capacity is determined by the capacity of the capacitor in the voltage stabilizer. The capacity of the current popular voltage stabilizer ranges from 2,000uF to several F (1F=1,000,000uF). The electronic rectifier is generally around 15,000uF.
The cigarette lighter type electronic fuel-saving The device is about 2,000~5,000uF. The response speed depends on the type of capacitor used. The fastest response is ceramic dielectric capacitors, followed by polymer dielectric capacitors, high-speed electrolytic capacitors, and the slowest general electrolytic capacitors.