UFI® is a patented, derivative technology from TDG Aerospace's successful NOFOD® wing ice prevention system. TDG's UFI® products are specifically designed to monitor and protect AC & DC circuits from dangerous electrical fault conditions. While UFI® technology is currently employed on a variety of commercial aircraft, it is also well-suited for military, marine or commercial applications where electrical system health and safety is paramount.
By independently monitoring the current and voltage on each phase of AC power, UFI® technology provides unprecedented insight into the real-time health and operational status of a given three-phase electrical circuit. Where there is an increased sensitivity to catastrophic failure conditions (fuel pump circuits) or financial incentive to avoid operation-to-failure, the benefits of UFI® technology are many.
UFI® technology is readily adaptable to single phase AC or DC circuits.
| Transient Electrical Fault Detection | Steady State Fault Detection | ||
| Line-to-ground current (parallel fault) | Unbalanced phase currents |
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| Line-to-line current (parallel fault) | Out-of-range phase currents |
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| Open phase (series fault) | Out-of-range phase voltages |
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The above fault conditions are detected based upon programmable thresholds that are set during unit manufacture, making the UFI® device infinitely adaptable to a given load and application.
Non-Volatile Memory
UFI® devices constantly record operational information into non-volatile memory, which can then be downloaded by maintenance technicians for assistance in preventative maintenance (end of life cycle prediction) or troubleshooting.
Leading Edge Technology
All UFI® devices have an all solid-state design with a predicted MTBF > 100,000 hours, and are designed to DO-160 Hardware Assurance Level B and DO-178 Software Assurance Level B.
