In the world of electrical safety, milliseconds make the difference between a minor incident and a catastrophic disaster. Internal arc faults are among the most serious hazards in switchgear operations, releasing immense thermal and mechanical energy in the blink of an eye.
: The PSE closes in less than 1.5 ms , creating a low-impedance earthing path that extinguishes the arc by collapsing its voltage. Key Technical Specifications Rated Voltage : Up to 40.5 kV. Short-time Withstand Current : Up to 100 kA. Total Extinguishing Time : Less than 4 ms after detection. abb+ufes+manual
: The fault current is finally cleared by the feeder circuit-breaker, which may also be triggered by the UFES electronics to shorten total breaking time. Key Technical Specifications Rated Voltage Up to 40.5 kV Rated Short-Time Current Up to 100 kA Switching Time (PSE) Total Extinguishing Time < 4 ms (after detection) Service Life Expectancy Up to 30 years Installation and Retrofitting In the world of electrical safety, milliseconds make
: The feeder circuit breakers then clear the finalized fault current. Key Benefits & Performance UFES™ Ultra-Fast Earthing Switch - ABB Key Technical Specifications Rated Voltage : Up to 40