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Hunan contactless AC voltage stabilizer, Changsha AC voltage stabilizer, Hunan Changsha single-phase three-phase CNC non-contact voltage stabilizer, Hunan Mingchuan voltage stabilizer quotation, Changsha three-phase voltage stabilizer | Power voltage stabilizer | AC Voltage Stabilizer | Single Phase Voltage Stabilizer | High Power Voltage Stabilizer | Household Voltage Stabilizer, Changsha Changde Great Wall Voltage Stabilizer Quotation Sales Telephone 3 Changsha Sihai Electronic Technology Co., Ltd. /Basic Principle Editor/There are many types of AC voltage stabilizers, and the main circuit working principles are different, but basically (with the exception of AC parameter voltage stabilizers) they are basically input switch sampling circuits, control circuits, voltage/regulating devices, and output protection The basic working principle block diagram of the device, driving device, display and components is as follows:/. Input switch: As the input working switch of the voltage regulator, an air switch type small circuit breaker with current limiting protection is generally used, which can regulate/stabilize the voltage. protect appliances and electrical equipment. /. Voltage regulating device: It is a device that can adjust the output voltage. It can increase or decrease the output voltage and is the most important component of the voltage regulator. /Sampling circuit: It detects the output voltage and current of the voltage regulator, and transmits the changes in the output voltage to the control circuit. /. Driving device: Since the control electrical signal of the control circuit is weak, a driving device is required for power amplification and conversion. /. Drive protection device: a device that connects and disconnects the output of the voltage regulator. Generally, relays, contactors or fuses are commonly used. /. Control circuit: It will analyze the sampled circuit detection model. When the output voltage is high, it will send a control signal to the driving device to reduce the voltage. The driving device will drive the voltage adjusting device to lower the output voltage. When the output When the voltage is low, a control signal to increase the voltage is sent to the driving device, and the driving device drives the voltage adjusting device to increase the output voltage to stabilize the output voltage to achieve stable output. /When it is detected that the output voltage or current exceeds the control range of the voltage regulator. The control circuit will control the output protection device to disconnect the output and protect the electrical equipment. Under normal conditions, the output protection device is connected to the output, and the electrical equipment can receive a stable voltage supply. /Category Editor/Electronic devices that can provide stable AC power to loads. Also known as AC voltage regulator. For parameters and quality indicators of AC stabilized power supply, please refer to DC stabilized power supply. Various electronic devices require a relatively stable AC power supply. Especially when computer technology is applied to various fields, the direct power supply from the AC power grid without taking any measures can no longer meet the needs. / AC stabilized power supply has a wide range of uses and many types, which can be roughly divided into the following types. / ① Ferromagnetic resonance AC voltage stabilizer: An AC voltage stabilizing device made by combining a saturation choke and a corresponding capacitor to have constant voltage and volt-ampere characteristics. The magnetic saturation type is an early typical structure of this voltage regulator. It has a simple structure, is easy to manufacture, has a wide input voltage variation range, reliable operation and strong overload capability. However, the waveform distortion is large and the stability is not high. The recently developed voltage stabilizing transformer is also a power supply device that uses the nonlinearity of electromagnetic components to achieve voltage stabilization. The difference between it and the magnetic saturation regulator lies in the different structure of the magnetic circuit, but the basic working principle is the same. It achieves the dual functions of voltage stabilization and voltage transformation on one core at the same time, so it is superior to ordinary power transformers and magnetic saturation regulators. / ② Magnetic amplifier AC voltage stabilizer: A device that connects a magnetic amplifier and an autotransformer in series and uses electronic circuits to change the impedance of the magnetic amplifier to stabilize the output voltage. The circuit form can be linear amplification, pulse width modulation, etc. This type of voltage regulator has a closed-loop system with feedback control, so it has high stability and good output waveform. However, due to the use of a magnetic amplifier with larger inertia, the recovery time is longer. And because it uses auto-coupling, its anti-interference ability is poor. / ③Sliding AC voltage stabilizer: A device that changes the position of the sliding contact of the transformer to stabilize the output voltage. It is an automatic voltage-regulating AC voltage stabilizer driven by a servo motor. This type of voltage regulator has high efficiency, good output voltage waveform, and no special requirements for load properties. However, the stability is lower and the recovery time is longer. / ④Inductive AC voltage stabilizer: A device that stabilizes the output AC voltage by changing the phase difference between the secondary voltage of the transformer and the primary voltage. It is similar to a wire-wound asynchronous motor in structure, and similar to an induction voltage regulator in principle. It has a wide voltage stabilization range, good output voltage waveform, and the power can reach hundreds of kilowatts. However, since the rotor is often in a locked state, the power consumption is large and the efficiency is low. In addition, because copper and iron are used in large quantities, they are less produced. / ⑤Thyristor AC voltage stabilizer: an AC voltage stabilizer that uses thyristors as power adjustment components. It has the advantages of high stability, fast response, and no noise. However, it causes damage to the mains power waveform and causes interference to communication equipment and electronic equipment. /⑥Relay AC voltage stabilizer: An AC voltage stabilizer that uses relays to adjust the windings of autotransformers. It has the advantages of wide voltage stabilization range, fast response speed and low production cost. Used for street lighting and remote home use. / With the development of power supply technology, the following three new AC stabilized power supplies have appeared in the 1990s. ① Compensated AC voltage stabilizer: also known as partially adjustable voltage stabilizer. The additional voltage of the compensation transformer is connected in series between the power supply and the load. As the input voltage increases, an intermittent AC switch (contactor or thyristor) or a continuous servo motor is used to change the size or polarity of the additional voltage. characteristic, subtract (or add) the higher part (or insufficient part) of the input voltage to achieve the purpose of voltage stabilization. The capacity of the compensation transformer is only about 1/2 of the output power. It has the advantages of simple structure and low cost, but its stability is not high. ②CNC AC voltage stabilizer and stepper voltage stabilizer: The control circuit is composed of logic components or microprocessors, and the primary turns of the transformer are converted according to the input voltage to stabilize the output voltage. ③Purifying AC voltage stabilizer: It is used because of its good isolation effect and its ability to eliminate peak interference from the power grid.