Is there a way for changing the pressurizing Fan Motor while the other one running whice the Fan is upstream the turbine Roof

 

Not a good idea to change a Fan motor while the other one is runing ..supposing something wrong or motor stopped by any cause ...you don't have a back up Fan motor for service..

 

Unless you got 3 DIfferents Motor Fan installed ...

 

Is there a way for changing the pressurizing Fan Motor while the other one running whice the Fan is upstream the turbine Roof

It’s 2OO2 S/D GT, unless the motor doesn’t work yes you can do it but if it is a part of PM don’t do it.

 

It’s 2OO2 S/D GT, unless the motor doesn’t work yes you can do it but if it is a part of PM don’t do it.

WTF?????

 

Unless you got 3 DIfferents Motor Fan installed ...

We have two pressurizing fan

 

If you're referring to a compartment ventilation fan that pressurizes the compartment (turbine compartment it's presumed) then it's pretty likely that if you're changing out a fan and the fan that's running shuts down or has an issue the machine is going to go into an automatic shutdown or possibly even trip. Ventilating the turbine compartment of a 9FA is critical to safely operating the machine, because if there are fuel leak(s) in the compartment without ventilation the temperatures in the compartment can cause ignition of combustible gases. And that would be ugly.

So, while it's probably possible to change one fan/motor and keep running with a single fan there is always the chance that the running fan can develop a problem. If the machine must stay running, and you only have one working fan/motor, well, you're kind of in the same position anyway, aren't you?

Without being able to see the fan configuration and know precisely what has to be done, I would say it's not possible to change one fan with the turbine running. It might be possible to change one fan motor while the other fan is running without too much trouble, but if it's the fan then probably not.

 

WTF?????

Well for your condition one only running and the standby is fail and need to change but how did you know it’s motor failure did you get alarm active or you have done Fan switching L63at 1-a/b in led and lag testing ? Always this step recommended before starting the GT to assure both are functioning properly?

 

Well for your condition one only running and the standby is fail and need to change but how did you know it’s motor failure did you get alarm active or you have done Fan switching L63at 1-a/b in led and lag testing ? Always this step recommended before starting the GT to assure both are functioning properly?

We have a motor failure. We a made an electrical test and we had found an winding faliure

 

We have a motor failure. We a made an electrical test and we had found an winding faliure

Thank you for the update ! So finally how did you troubleshooted this issue ( with unit runing)

 

We have a motor failure. We a made an electrical test and we had found an winding faliure

If S/D is close wait for replacement if not you can do it in precaution. Good luck

 

Unless you got 3 DIfferents Motor Fan installed ...

All Gas turbines pressurizing fan has only 2 one running and one stand by lead and lag

 

“All Gas turbines pressurizing fan has only 2 …”

THAT’S a pretty ballsy statement, especially since GE Belfort configures lots of GE-design heavy duty gas turbines.

And they LOVE—and feel empowered and entitled—to change auxiliaries and systems that have worked well for decades. Just because they can and think their ideas are always better than tested and proven schemes and philosophies. (Sometimes they are; often they’re not fully tested and just plain don’t work.)

You might want to consider making blanket statements like that. They are like alligators—they can surprise you when you least expect it and bite you in the arse. Not fun on a worldwide web forum for many to see.

Especially when GE Belfort is doing their thing.

‘Nuff said.