Update for Sentry overspeed protection system announced
December 1st 2006 Extensive experience in the predictive maintenance marketplace was what motivated a customer to ask Sensonics to supply a special small package functional safety system .As a result, Sensonics, was accelerated into designing a more compact system and has now announced plans to update its Overspeed Protection System designed to deal with turbine overspeed problems and trip failures in the power generation industry. The new system has been repackaged into a single 3 U Semtry rack of 6 modules, incorporating 3 Sentry speed/overspeed monitor modules, a 2 out of 3 voting module trip defeat and half speed trip facilities and 2 power supply modules which together offer dual redundancy; one PSU can be swapped out if faulty, with a spare, whilst the system is still running from the other PSU. The new system is not only much more compact but also comes at a lower cost, maximises space, provides extra integration of the system and is supplied as one package to IEC 61508 with SIL rating of Level 3. Applications will be found in conjunction with main turbine boiler feed pumps, gas turbines, diesel engines and turbine driven compressors where systems failure of the proportional control loop can cause rapid speed increases resulting in machine damage. Sensonics have been prominent in the design, installation and commissioning of monitoring protection for powerplant equipment since 1978. More articles from Sensonics Ltd: | 
