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Probably the best person on this forum to provide an answer to your question, Phil Corso, is the one who will ask a question (or several) and then recommend to take the discussion off-line by giving you his personal email address, so no one else will benefit from the discussion. So, find a post...

Animal311, Thanks for the information! Yes; it's an occupational hazard--that most people who have only worked on one GE gas turbine with a Mark* (IV, or V, or VI or VIe) think every other GE gas turbine with a Mark* (IV, or V, or VI or VIe) is the same as the one they are working on. Some...

Animal311, This is difficult (for me) because there are Mark V turbine controls, and then there are Mark V LM turbine controls, and the latter is really a Mark V in name only because they are pretty radically different from your run-of-the-mill Mark V (TMR or SIMPLEX). And, it's not really...

Yes; as oneye14 says, what was the context where you heard or read this term, or did it come from a World Wide Web translator? But, without any context if an electric motor weighing 20 kgs or more dropped on one's head from a height of 5 or 6 meters it would likely result in some shortening...

David_2, Soooo, there's a reason GE grounds the compensation leg of 3- or 4-wire RTDs embedded in the generator stator windings and cooling gas temperature measurements. And, it's pretty simple.... Three-conductor, twisted, shielded cables (sometimes called ”triad cables”) cost more than...

Thank you for the feedback! It seems unusual for a Mark V I/O terminal board to have socketed components; that was not done in the early stages of the Mark V product life. It's even more unusual to find a socketed device that isn't keyed or designed to prevent improper insertion, but it's not...

Google Translate wasn't much with understanding this. There should be at least two (2) DTBA cards in the Mark V turbine control panel (presuming it's controlling and protecting a GE-design heavy duty gas turbine)--one for <Q>, <QD1>, and one for <C>, <CD>. They should both be the...

Thank you.

Mohamedibr752, Well, most embedded generator RTDs have one lead grounded (earthed) at the JB on the generator. So, that is a risk. Some bearing T/Cs are also grounded/earthed. Most generators have lightning suppression which can be affected by welding if the welding ground/neutral/negative...

Mohamedibr752, This is one of those questions where a picture is worth a thousand words. I don't think many people have ever seen a Holec generator. And, inlet cooling air ducts can take many different shapes. You haven't told if the duct is on the generator, if it's in the generator, if its...

topcat123, As a matter of fact, I wasn't (having a bad day). So, because you haven't worked on Mark VI (not 6) for a while, that means the instructions in the manual are no longer valid? Or, because you were looking for the Mark 6 manual, you couldn't find it? Do you know why Santa puts his...

Hi, John, I have accumulated almost 37 years of experience working on turbine control systems of GE-design heavy duty gas turbines. My experience has been primarily installing & commissioning new turbines and control systems but I have also been troubleshooting and repairing them. The most...

topcat123, What was the message in the Log Window at the bottom of the Toolbox window? What do the card replacement instructions for the VSVO in GEH-6421 (usually in Vol. II) say to do? Why do you believe it would not be necessary to download firmware to a new I/O card? Do you believe a new...

Thank you ME42 for your valuable input and important details!!!

Thank you ME42 for your valuable input and important details!!!

Melissa, If you only have 10 minutes to do a presentation, I would presume the Manager understands you can't possibly put together a full-blown process and instrumentation explanation. Maybe he's just looking to see, one, if you will over-commit and under-deliver, and, two, if you'll ask for...

ControlsGuy25, When a single prime mover and synchronous generator are supplying to an "island" load (independent of any other generators or grid) and is being operated in Isochronous Speed Control mode there is no load control. Try to think of riding a bicycle on a long flat road and trying to...

Hi, Sometimes an inexperienced or fresh set of eyes can bring a whole new perspective to the task at hand. I see this quite frequently in industrial applications. (I also see some very unusual and quirky attempts at thinking outside of the box, and one wonders how those attempts make it into...

Arunrajput1990, Since you seem to run pretty close to Base Load anyway, would you lose that much efficiency/heat rate if you turned of IGV exhaust temperature control--at least as a test--to see what happens when the big motors start and stop?

Arunrajput1990, a) Does this gas turbine exhaust into an HRSG ("boiler")? Is that why you have IGV exhaust temperature control turned on? I sincerely doubt I will be able to offer too much more than the supplier of the upgraded hardware and Control Constant changes. I do, more or less, believe...