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Thanks Rustons_EGT_Alstom_Siemens_Guy for reaching out. We successfully commissioned the turbine in Dec 2020 with Mark-VIe Control System. Turned out my reservations were correct and GE guys were absolutely clueless about the controls of an aero-derivative turbine. Commissioning went through...

So guys, just to update further and close out this thread, I was able to procure J5 cable on urgent basis and got the opportunity last night to carry out the activity. Turned out that the issue was with both the J5 cable and also the JZ5 port of TPRO board (I swapped the JZ5 and JY5 cable on...

Hi James/ ControlsGuy25, Pardon me if I failed to understand what exactly were you asking in your last post. I thought those were general statements stated matter-of-factly. I suppose you're referring to below statement: . To answer this, well J2 was a typo and I meant to write J3.

Hi guys, Just to update further, we carried out following steps to resolve said issue: Swapping of J5Z and J1Z with either J5X/Y or J1X/Y on TPRO was not possible as our GT is online All three diagnostic alarms were still present on VPRO board (Board 1) We issued another VPRO board (Board 2)...

Dear CSA, We have an SLA with Baker Hughes (formerly a GE Company) for technical help on Mark-VI matters and I wrote the same to them as well. Turns out their hardware engineer also thinks that this is serious. I am copying their response below: "Requesting to confirm if after the replacement...

Hello ControlsGuy25, Thanks for your response. The videos were still uploading in my drive that's why you may have experienced some problems. These should be available now. Please check. The nameplate data is below: Make: SHIMADZU MECTUM, INC. INDUSTRIAL MACHINERY DIV. TYPE: F-9099 S/N: G98-203...

Dear CSA, It was indeed a very peculiar event with many unexplained instances. Looking forward to your further analysis. As far as your queries are concerned: We do not have any external load/frequency control system. An operator basically controls the MW of turbine manually keeping in view the...

CSA, I am sorry I was trying to be detailed but missed some obvious pieces of information. So, let me run them down sequentially: P&IDs are attached Control System is GE Mark-VI ST load was 11MW which increased to 11.5MW only Attached excel file is the trend log for the event. Look for Row #...

Like there is one point that is bugging me. GE guys have configured a logic in new system where when a "Fire confirmed" shutdown occurs, emergency DC lube oil pump starts after 15 seconds. I know that DC lube oil pump runs after normal trip of turbine (and it is absolutely crucial that it runs)...

Yes. BHGE (Now Baker Hughes only) got the contract from us by giving us the impression that after Alstom acquisition by GE, its a piece of cake for them and they won't have any trouble pulling old data from Alstom database (machine is at least 20 years old!). After we'd awarded the contract, it...

MIKE-VI/ CSA, It has really been a fruitful thread and I've learned so much. One thing that I have noticed at my site and which constantly bugs me is the operating modes in which both Gas Turbines are operated. As already stated, we are operating in island mode where one GT operates in Iso...

PC Load, You've just about hit the nail on the head. Based on your understanding of turbine operation in subcontinent conditions, why do you think GT-2 failed to take the load? Machine was operating fine four hours before the event at 21 MW so we knew it was capable of handling this much...

Dear MIKE-VI, Hmmmm... Very interesting comments regarding our droop equation and I would love to know more. I think that this will open new points for discussion and hopefully interesting ones. >Both units accepted load when turbine speed and system >frequency started to decline, assumed...

Dear CSA and MIKEVI, I am sorry I've been swamped for the past few days. Below I am providing the link for the trip log files and the individual m6b files for both GTs. One thing is still a mystery and that is the load pick up of 2MW by GT-1 which was on droop. The frequency of the system...