Today is...
Tuesday, April 23, 2019
Welcome to Control.com, the global online
community of automation professionals.
Featured Video...
Featured Video
A tutorial introduction to programming using the QuickBuilder Programming Environment.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Siemens SGT700 Gas Turbine Alarm
Siemens gas turbine Model: SGT 700 showing an alarm "GAC in operation"

Sir, my machine (Siemens gas turbine Model: SGT 700) is indicating an alarm "GAC in operation." as per OEM GAC stands for gas generator acceleration control. I am unable to identify the cause for this alarm to appear.

Please advise

Hi Nipendra,
Any finding on this?

>Sir, my machine (Siemens gas turbine Model: SGT 700) is
>indicating an alarm "GAC in operation." as per OEM GAC
>stands for gas generator acceleration control. I am unable
>to identify the cause for this alarm to appear.

What about the behavior of pilot/main Gas valve opening, IGV opening, load, shaft speed at the time of alarm? and any other alarm appears at the time of GAC in operation alarm?