The most frequent cause of electrical power quality events is voltage sags. The voltage drops below its normal rated value for a short period typically ½ a cycle (8 milliseconds) up to 1 second. If the voltage value drops below a threshold value, typically 80%-85% of nominal value, then unplanned production stoppages can occur. Many customers may believe they have lost power but voltage sags have been proven by independent studies to occur much more frequently than actual power loss.
The Omniverter AVC2 (Active Voltage Conditioner) is designed to correct many voltage sags and allow production to continue.