Blade Ressonace versus load 1

[Ysaac]

I have read that in order to avoid blade ressonace and it´s efects, a steam turbine operating conected to a system must be removed from there if a underfrequency condition is present (for example 58 Hz in a 60Hz system). The books also says that these effects are cumulative.

My question is: in case of a turbine/generator NOT conected to system, providing energy only to its auxiliar service (10% of total load), should the turbine be triped to avoid blade ressonance and it´s efects if the frequency fall to 58Hz i.e ?

 

[stgrme]

If a blade is operated in resonance, it will eventually fail. Higher loads (steam flows) will shorten the time to failure due to higher excitation forces.

You may want to move this posting to the "Engine and turbine engineering" forum to get additional responses.

Best of luck!

 

[Ysaac]

tanks !!

 

[FeX32]

Tanks? Where? Any Matilda II's arround?



Fe

 

[byrdj]

also, i would highly recomend getting the opinion of the bucket manufactor

 

[Ysaac]

Thanks everybody !!!