The Basics of AVR

The AVR meaning AVR is an abbreviation for Automatic Voltage Regulator An AVR is the equipment that regulates the voltage to the safe range for the connected electrical and electronic loads, and improves power quality as well. It protects the loads from taking too much power from unstable power source such as voltage fluctuations, sags, surges and electrical noise, etc. The difference between AVR and UPS is the AVR cannot store backup power, its cost is much lower and be only used to some electrical loads.

There are two main functions of AVR as the following Automatically regulates the voltage to the constant range for safe application Improves the power quality as well by filtering and suppressing unwanted disturbances The AVR functions The AVR or Automatic Voltage Regulator uses the microprocessor to control its working that modifies the sine wave to an optimal wave shape, which means that the voltage is constant. It combines the automatic voltage regulation system so that can regulate the voltage to the constant range by adjusting the incoming power up or down within capable of its control. Inclusively, an overvoltage or voltage drop protection circuit to disconnect the utility power supply if the total of voltage is out of range, and then restores it automatically once incoming power returns to a safe range. Moreover, it has an overload and short circuit protection, electrical noise filtering, such as Electro-Magnetic Interference; EMI and Radio Frequency Interference; RFI, etc. and surge protection. The AVR advantages The AVR or Automatic Voltage Regulator can handle many problems such as transient, voltage fluctuation, variations in voltage, surge, spike and electrical noise caused by the unstable utility power supply, etc. The AVR monitors, regulates the incoming utility power and suppresses the unwanted disturbances before supplying power to all connected loads. The AVR applications Since the main function of AVR is to regulate the incoming utility power, therefore, it is an necessary equipment for any applications that are sensitive to power variations, use for critical application in remote area where consistent voltage range cannot be trusted and Service call applications. At the same time, the AVR consists of the high efficient microprocessor, which enhances the AVR features as high functions, high reliabilities, user friendly and easy to maintenance. The AVR is compatible with all electrical equipments, which need to regulate the voltage to be constant, but they must not have any effects and damages if blackout occurs. If the AVR is used to the computer, it cannot supply the backup power like the UPS. For example Communication and telecommunication systems Communication systems, PABX, communication equipments, Broadcast transmitter sites and studios, commercial broadcast and military mobile communication trucks, etc. Medical and science Medical equipments, scientific equipments, X-Ray, CAT scan, and MRI scan, etc. Office Office buildings, large chiller systems, lighting systems, communication systems, sensitive equipments and elevators, etc. Industrial Industrial automations, processing control systems and factory robotics, etc.