Hello everyone
can any one explain me how to set the lower and upper range of wobbulation value in MarkVIe logic for steam turbine? does wobbulation value is different for different critical speeds in steam turbine like in our turbine we have three critical speed ranges. @CSA

 

I&C_Power,

I am not a steam turbine guru; not at all. I would suspect that the speed range(s) where wobbulation are required and used would definitely be a function of the critical speeds of a particular turbine. (In other words, it would most likely definitely depend on the critical speed(s) of a turbine--both the range where wobbulation is employed as well as the magnitude of wobbulation.) It might also depend to a certain degree on machine temperature (if the machine has the necessary temperature monitoring).

Wish I could be of more help--but I'm just not all that familiar with steam turbine monitoring and control and protection.

 

thank you sir.

 

You are most welcome.