Gas Turbine turning gear

E

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Ed

We have a simple cycle 501f GT and idle most of time. what is the best method to prevent wear and tear on discs? Is it okay to run TG once in a week for 30 minutes? Siemens recommends to do 1 hour TG operation if down more than a week. Isn't it too low? What options one have to prevent these wearing issues? logic changes or reduction in TG speed? need to know merits and demerits too.

CSA can you please share your knowledge and comment?

Thx
 
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