Steam Turbine Overspeed Trip
Steam Turbine Overspeed Trip
(OP)
I am searching for any Engineering Standards on the operation of a steam turbine with a faulty overspeed trip.
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Steam Turbine Overspeed Trip
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RE: Steam Turbine Overspeed Trip
yur second biggest problem will be convincing your insurance carrier to cover any damages that result from an overspeed incident if you elect to operate it in that condition... although the overspeed trip is the trip of last resort (in my opinion), it is a critical protective device...
so, exactly what is wrong? is it the mechanical trip, the electrical, or the hydraulic (or combination) trips? [what type of control system does the unit have?]
RE: Steam Turbine Overspeed Trip
Nobody cares until there's an accident. Then the investigator will want to see the records regarding the overspeed protection. At that point, you either get to show that you have no records, and were negligent in performing the proper tests, or that you DO have records that showed a faulty safety device, and yet you continued to operate the turbine anyway. Either scenario is very awkward to deal with.
RE: Steam Turbine Overspeed Trip
One thing to know is, we have to understand the turbine's tripping device diagram, based on the controll itself. Whether it's mechanically or electrically controlled.
After we found and understand it, I'm sure we do not need such standard.
Dwi Handoyo S