What is the frequency converter AVR?
Automatic adjustment function: AVR voltage inverter based on voltage feedback, automatically adjust the output voltage, which is not affected by the grid voltage and load change, to protect the motor from excessive voltage caused by long-term insulation damage or high magnetic density caused by excessive heating core.
When the input voltage deviation from the rated value, the function can keep the output voltage constant, so under normal circumstances should be AVR action, especially when the input voltage is higher than the rated value, to protect the motor from excessive voltage caused by long-term insulation damage or high magnetic density caused by excessive heating core.
AVR is the abbreviation of "Automatic voltage regulator", which means automatic voltage regulation".The general frequency converter with this function, when the input voltage changes, DC bus voltage of the inverter will also change, real-time detection of the bus voltage controller, according to the change of output bus voltage modulation ratio, the output voltage is relatively stable.
