The VAAS( voltage automatic adjustment system ) is a kind of voltage sag corrector/active voltage conditioner which use different solution developed by Enrely company. It can prevent cost loss due to voltage sag in semiconductor, pharmaceutical and other power-critical manufacturing applications.The VAAS can cut off voltage sag power source for short time, typically 1~3s, and supply power to load during the voltage sag moment. It can support power supply, adjust the voltage sag, adjust and the voltage raise, eliminate the load reference and provide real time monitoring of fault arc.The effects of voltage sagIf voltage drop to 60% and keep the sag for more than 12 waveforms, the computer system will lost data and inner program will be disorder.If the work voltage was lower than 85% of syste...