For technical documentation regarding the ABB UFES (Ultra-Fast Earthing Switch), you can find the primary manuals and technical guides through the ABB Library. These documents cover the active arc fault protection system designed to extinguish arc flashes in less than 4 ms. Key Technical Manuals
Main Product Catalogue (TK 541): This comprehensive document provides the Introduction, Technical Data, and Circuit Diagrams for the system.
Installation Manual: Contains general notes on installation and mounting requirements for the primary switching elements (PSE).
Application Note (Current Threshold Settings): A specialized guide for setting current thresholds when combining UFES with TVOC-2 and CSU-2 units. System Components & Performance
PSE (Primary Switching Elements): These autonomous units have a switching time of less than 1.5 ms. They are typically 210 mm high and 137 mm in diameter. Tripping Units:
QRU100: An electronic tripping unit designed for integration with ABB REA arc protection systems.
QRU1: A standalone detection and tripping unit featuring 9 optical inputs and 3 current inputs. abb+ufes+manual
Voltage Ratings: Suitable for short-circuit proof switchgear systems with rated voltages up to 40.5 kV and short-time currents up to 63 kA (1s). Typical Applications
The UFES system can be installed in new or existing switchgear.
Service Box: A retrofit solution that allows the PSEs to be mounted on the outside of the switchgear.
Draw-out Unit: A "Plug & Play" option where PSEs are installed on a truck for use in vacant panels. UFES™ – Ultra-Fast Earthing Switch - ABB
Ultra-Fast Earthing Switch (UFES) is an active arc fault mitigation system designed to extinguish internal arc flashes in less than 4 milliseconds
after detection. This is approximately 20 times faster than standard protection devices. Key Features and Operation Active Arc Quenching Case Study: Typical ABB Equipment Found at UFES
: It creates a controlled three-phase metallic short-circuit to earth to break the arc voltage immediately. Rapid Response
: The primary switching elements (PSE) have an extremely short switching time of less than Electronic Control Units
: An expandable unit providing both internal light and current detection.
: A standard tripping unit designed to interface with external detection systems like the ABB REA system Safety and Maintenance
: Features integrated self-monitoring, a dedicated testing mode for functional checks, and compatibility with the ABB Arc Guard TVOC-2 system Documentation and Manuals Ultra Fast Earthing Switch UFES 12-40,5kV - ABB Library
Based on the keywords provided, you are looking for the user manual or reference guide for the ABB UFE series of protection relays, specifically related to the UFES (Ultra-Fast Earthing Switch) system. The "abb+ufes+manual" typically refers to the technical documentation required to install, configure, and operate these devices. ABB UFES Manual — Overview and Guide 5
Below is a reconstruction of the critical content found in the official ABB UFE100/800 Series User's Manual and UFES Technical Guide.
To make this article practical, let’s assume you are an engineer or student at the Universidade Federal do Espírito Santo (UFES) in Vitória, Brazil, and you need to operate ABB equipment. Here are the most common ABB devices in Brazilian university labs and industrial plants, along with the correct manual names you should search for.
| ABB Device | Typical Application at UFES | Correct Manual to Search | Key Sections | | :--- | :--- | :--- | :--- | | ABB ACS580 General Purpose Drive | Pump control in chemical engineering lab | ACS580 Hardware Manual (3AXD50000011825) | Wiring, I/O terminals, basic parameters | | ABB PowerValue 11T G2 UPS | Backup for server room in CTI | PowerValue 11T G2 User Manual (4NWD004811) | Battery installation, eco-mode, alarm codes | | ABB Tmax XT Molded Case Circuit Breaker | Power distribution panel (pavilions) | Tmax XT Installation and Operating Instructions (1SDC210015D0205) | Trip curves, torque settings, accessories | | ABB Ability Smart Sensor | Predictive maintenance on motors | ABB Ability Smart Sensor Manual (3AXD50000027444) | Mounting, Bluetooth pairing, cloud data |
Important note: If your device label literally says "UFES," it is likely an asset tag applied by the university, not an ABB model number. In that case, search for the ABB Type Code printed next to it.
The standard protection logic (ANSI codes) used: