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How does the automatic voltage regulator perform delay control?

2020-07-14

Now more and more people use automatic voltage regulator, which can solve the trouble caused by voltage instability. Voltage stabilizer is a device to stabilize the output voltage.


The automatic voltage regulator is composed of a voltage stabilizing circuit, a control circuit and a servo motor. When the input voltage or load changes, the control circuit will sample, compare and amplify, and then drive the servo motor to rotate to change the position of the regulator carbon brush. By automatically adjusting the coil turns ratio, the output voltage remains stable. The regulator can be widely used in: industrial and mining enterprises, oil fields, railways, construction sites, schools, hospitals, post and telecommunications, hotels, scientific research and other departments of electronic computers, precision machine tools , Computer tomography precision instruments, testing instruments, elevator lighting, imported equipment and production lines, etc. where stable power supply voltage is required.


Automatic voltage regulator is also suitable for users at the end of low-voltage power distribution networks with low or high power supply voltage and large fluctuations, as well as electrical equipment with large fluctuations in load. It is especially suitable for all regulated power supplies with high requirements on the power grid waveform. High-power compensation power stabilizers can be connected to thermal, hydraulic and small generators. The delay time of the voltage regulator is suitable for refrigerator compressors and other equipment.


We all know that if the refrigerator suddenly cuts off power during work and then immediately calls, it is because the refrigerator compressor will block due to high exhaust pressure, which will burn the compressor, so how to solve this problem? The automatic voltage regulator uses a delay function. Although the compressor can start normally, the working state of the delayed work indicator on the regulator panel is that the indicator does not light in the delayed state, the output socket has no power output, and the refrigerator or other appliances The appliance will not work and the indicator lights. The output socket has electrical output, and the refrigerator or other electrical appliances work normally; therefore, the delay indicator of the voltage stabilizer we often see is always on. Unless the power is turned on again, the voltage regulator must be in working condition. In the delayed state, the indicator will go out. After 3-5 seconds, the delay ends, the work starts again, and the indicator lights up again.


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