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YES, We too agree with CSA as our GE-9E gas turbine IGV also controlled by double acting piston not by spring force. We are too keen to learn from Mesi. take care G.Rajesh

Don't worry CSA, We hope, they may drop their feedback soon. Take care G.Rajesh

Hi, What is the control mode, when the load is 24 MW (Load /temperature)? Once the unit reached temperature control, it can't produce additional load. Do you have strainer in the gas line? If yes inspect for the cleaning. Do you have normal hydraulic pressure? take care G.Rajesh

Dear Ali, In general at about 110 deg.F (43 deg.C) we used to get alarm. So we could take some preventive measures. What is your site setpoint? I too waiting to know the cards withstanding temperature limit. Take care G.Rajesh

useful notes by Mr.Ram. thank you G.Rajesh

Simply fantastic reply by CSA. Expecting commends from the originator. Thanks G.Rajesh

Hi Ayman, Could you explain in detail to know how it solved? Thanks take care G.Rajesh

Good & thank you CSA. Take care G.Rajesh

Thank you CSA for your detailed explanation. Take care G.Rajesh

Dear Bhavan, We are facing the similar problem but in your case alarms are more. It could be the problem with DCC on <T> processor or TCDA (3 at QD1). There are other possible reason like ribbon cables and PROM failures. Write back once it solved. Take care G.Rajesh

Well explained by Mr.Bruce. Thank you Take care G.Rajesh

Thank CSA, In the next available chance we'll check the cables and TCTG. Take care G.Rajesh

Dear CSA & others, thanks for the feedback. > I'm going to presume there is a Process Alarm No, there isn't process alarm about the diagnostic. > Have you used PreVote Data Display to look at the overspeed signals (TNH_OS) > for <R> (<X>), <S> (<Y>), and <T> (<Z>)? If so, what are...

Dear All, We have experienced the following diagnostic alarm on 29-June-2012 while GT unit is running.<pre> C 3795 Voter Mismatch (S) TNH_OS R 1697 TCE1 TMR check trouble,ETR2 R 1696 TCE1 TMR check trouble, ETR1 C 2375 Voter Mismatch (S) L4ETR2 C 2374 Voter Mismatch (S) L4ETR1 T...

Hi Ayman, We had a similar problem and rectified after replaced the four way manual valve (VM-2) which is used to de-engage the shaft. If the valve is passing, the system won't get enough hydraulic pressure to make rotation. Since you said 20CS is energized, there won't be any issue...

Well explained by CSA

Dear Ayman, Some unit bleed valves are closed /opened based on FUEL STROKE REFERENCE (FSR). In our Frame-6B machine is VA2 open & close based on FSR (18% & 24%) but in Frame-9E machine based on TNH (95%). So please look your logic and write back what is being used. Take care G.Rajesh

Dear CSA, First we have noticed you have raised new post. Thank you for your continue support. As you stated in example finding solution for 125V ground is an issue for us. What is your best practice to root cause the problem? Like me, many of us benefited for this site and by you. Take...

Like others we are too waiting for the poster to write back about the investigation. Take care G.Rajesh

Thank you Mr.CSA & others for your detailed explanations. Take care G.Rajesh