Small-scale SIL-rated overspeed protection13 August 2020

Dutch firm Istec is extending SIL-rated overspeed protection system to a wider range of rotating machinery with the SpeedSys 200, launching in the next few months.

The company states that the overspeed protection market is mainly occupied with rack-based systems that are overly complex for smaller or less critical rotating equipment. SpeedSys 200 delivers that functionality in the form factor of a personal computing external hard disc drive.

According to the company, a single module can offer a reliable and economical solution for overspeed protection in micro turbines, compressors and pumps, gas and steam turbines and marine applications.

The system offers SIL 2 certified protection and 8ms response time. It includes two safety relays and one safety analogue output, and is suitable for Hall-effect, electromagnetic or proximity sensors. Redundancy and voting structures can be created for more demanding applications or increased availability.

William Dalrymple

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