Principle of Automatic Voltage Regulator AVR
When the voltage is detected to deviate from the target, AVR will adjust the excitation current to stabilize the output. Specifically, if the voltage is low, the excitation current is increased to enhance the magnetic field strength and increase the voltage; otherwise, the excitation current is reduced. This closed-loop control system ensures that the generator voltage remains constant under various load and speed conditions.
Features of AVR
Protect household electrical appliances: The automatic voltage regulator can effectively prevent damage to electrical equipment caused by input voltage fluctuations or excessively high or low voltage, thereby extending the service life of the equipment and improving the reliability and stability of the equipment.
Maintain voltage stability: By adjusting the input voltage, ensure that the output voltage is stable within the set value range, avoid the impact of excessively high or low voltage on the operation of the equipment, and ensure the normal operation of the equipment.
Improve power utilization: The automatic voltage regulator can improve power utilization, reduce energy waste, and reduce electricity bills, which has a positive effect on improving production efficiency and saving costs.
Ensure the safety of power equipment: In areas or seasons with unstable power supply, the use of automatic voltage regulators can effectively ensure the safe operation of power equipment and avoid fires or other accidents caused by voltage fluctuations.
Reduce maintenance costs : Automatic voltage regulators can reduce equipment maintenance costs, reduce equipment failure rates, reduce the number of equipment repairs and replacements, and improve equipment reliability and stability.
Home application areas of automatic voltage regulators
Voltage stabilizers can effectively protect household appliances, especially appliances with high voltage stability requirements, such as air conditioners, refrigerators, microwave ovens, etc., installing voltage stabilizers is particularly important. By using voltage stabilizers, it can be ensured that these devices can still operate normally under large voltage fluctuations, avoiding damage caused by excessively high or low voltage.
In addition, the application of voltage stabilizers is not limited to protecting household appliances, it can also ensure the stable operation of household electronic equipment. In a home environment, electronic equipment such as computers, televisions, and stereos also have certain requirements for voltage stability. By using voltage stabilizers, the impact of voltage fluctuations on electronic equipment can be reduced, the service life of the equipment can be extended, and the performance and safety of the equipment can be guaranteed.
Tips for purchasing automatic home voltage regulators AVR
Understand the power demand of the home : First, you need to understand the power load of the home, including the type, quantity, and power of electrical appliances. For example, an air conditioner requires about 1KW, a refrigerator is between 150W and 200W, and a washing machine requires 800W to 1000W. Choose a voltage stabilizer with a suitable rated power based on these data, while considering the appliances that may be added in the future.
Pay attention to the input voltage range: The voltage standards in different regions may be different, so pay attention to the input voltage range of the voltage stabilizer when purchasing. Usually, the input voltage range of a household 220V voltage stabilizer is 170V-250V.
Choose high voltage stabilization accuracy: A high-precision voltage stabilizer can effectively reduce the impact of voltage fluctuations on electrical appliances and extend the life of electrical appliances. Therefore, it is a wise choice to choose a voltage stabilizer with high voltage stabilization accuracy.
Protection function: Choose a voltage stabilizer with multiple protection functions such as overload protection, short circuit protection, and over-temperature protection to ensure that electrical appliances can operate safely in various emergencies.
Brand and after-sales service: The quality of voltage stabilizers from well-known brands is usually more guaranteed, and the after-sales service is more complete. You can check the brand’s after-sales policy before purchasing to ensure that problems can be solved in time when they arise.
Consider the automatic voltage regulation function: Although the price may be slightly higher, the voltage regulator with an automatic voltage regulation function can automatically adjust the voltage to prevent electrical appliances from being damaged by voltage fluctuations, which is more economical in the long run.
Reasonably choose the voltage regulator capacity: According to the household power consumption and the power of electrical equipment, choose the appropriate voltage regulator capacity. Generally speaking, the voltage regulator capacity should be about 1.2 times the maximum household power load, so that the voltage regulator can meet the household power demand during peak hours.
How to select a household automatic voltage regulator AVR?
1.We choose single-phase or three-phase according to the load
2.We need to determine the voltage of the main circuit. Normal three-phase has 220V, 380V, 480V, 690V, etc., and single-phase has 220V and 380V.
3.We need to determine the current of the load. Once the current of the load is determined, it is recommended to enlarge it by about 1.2 times in the selection.
4.Finally, according to the control requirements of the equipment or project, communication, digital, feedback output, and voltage and current limiting functions can be selected.
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