The occurrence of an arc flash in electrical installations is a serious matter that poses significant risks to the people and equipment involved. In this situation, the time it takes to detect and interrupt the arc fault is critical in determining the amount of energy released and the damage caused. As a market leader in arc fault detection technology, ABB has developed the TVOC-2 Arc Guard System™, an optical arc flash detection device with the quickest reaction time available.

The TVOC-2 system detects the light emitted during an arc flash and sends an immediate signal to disconnect power within 1 ms to the circuit breaker. Combined with ABB's Emax 2 circuit breaker, the arc fault clearing time is reduced to less than 50ms. ABB's TVOC-2 Arc Guard System™ is SIL-2 certified according to IEC 61508 and IEC 62062 and has an IP54 protection degree with an HMI touchscreen that can be panel door mounted. It can also be expanded with up to 30 optical sensors for broader coverage and remotely monitored via Modbus RTU communication protocol. As an accessory to the TVOC-2, the CSU-2 current sensing unit can detect the current increase associated with an arc flash, preventing any nuisance tripping and making it an even more robust solution. 

Key reasons to invest in the TVOC-2 Arc Guard System™:

• Saves lives of personnel 
• Saves equipment
• Reduces downtime
• Extends the life of switchgear
• Reduces repair costs

Overall, the ABB TVOC-2 Arc Guard System™ is a reliable and efficient solution for protecting electrical installations and switchboards against arc flash incidents, significantly reducing the risk of injury, damage to equipment and costly production downtimes. Discover ABB's arc fault solutions here, or contact an IPD representative today at 1300 556 601.