Abb+ufes+manual

: Features a Self-Monitoring function and a Test Mode to verify detection and settings without tripping the PSE. Installation & Maintenance Notes

The UFES system is an active arc fault protection system designed to minimize damage and personal injury in the event of an internal arc fault within switchgear. It detects the fault and closes an earthing switch within milliseconds to quench the arc. abb+ufes+manual

: Mounted on top of the switchgear with direct connection to busbars. Withdrawable Design : Features a Self-Monitoring function and a Test

: The system monitors for two simultaneous criteria: a sudden increase in light intensity and an instantaneous current rise above set response levels. abb+ufes+manual

After a UFES trip event: