ABB Introduces New Arc Guard System
13 February 2012
ABB's low-voltage products division has released TVOC-2, a new version of its proprietary Arc Guard System, which is designed to protect electrical equipment in solar facilities and other applications from dangerous electrical arc flashes.
TVOC-2, a new version of ABB's proprietary Arc Guard System, is designed to protect electrical equipment from arc flashes
TVOC-2 features numerous upgrades and new functions to provide superior arc-flash protection, detecting faults in low- and medium-voltage switchgear and disconnecting the power provided to the arc within 30 to 50 milliseconds, the company says. TVOC-2 is now UL-listed and, when installed along with ABB's Emax circuit breakers, carries a functional safety rating of SIL-2 as certified by TUV Rheinland.
“The SIL-2 rating is especially important because it allows the TVOC-2 Arc Guard system to be used where an engineered safety solution is required,” said Steve Zbytowski, PE, product manager of control gear at ABB. “The rating makes the TVOC-2 a totally unique product in today’s market.”
TVOC-2 upgrades provide significant system enhancements, including pre-calibrated optical sensors and fibre optic point sensors, hardware-based self-monitoring systems for critical functions, wide-ranging input voltage ratings, and selective tripping of only the affected circuit breaker, the company adds.
The Arc Guard System is compatible with an extremely wide range of applications, including new or OEM installations, and old equipment soon to be out-of-date without a safety upgrade. It can also be installed on systems of all sizes and values, from $10,000 switchgear up to systems in excess of $1,000,000. Some of the industry segments and applications that can benefit from Arc Guard include substations; critical power facilities such as hospitals and data centers; yachts; cruise and refrigerated container ships; oil rigs; chemical plants; railroad - trains and way stations; steel mills; and wind/solar power facilities.
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