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Isulamu, I'm trying to find the right tack to make this work for you. Droop speed control is about how much the energy flow-rate into the prime mover changes for a change in the error between the prime mover's speed reference and the actual speed. FSR is a position--a position that is...

Hello. I don't have any experience with EX2000, but if the DCC card is the same one as used in the Mark V turbine control panels (and it seems to be from the P/N (Part Number)), I don't understand the question. The <b>PROMs</b> are meant to be moved from the existing card to the card...

How were the lines "flushed?" By the way, I was as surprised as glenmorangie about "washing" the filters. I don't think I've ever seen that done. And if the dirts in the L.O. tank had been allowed to build up until finally they were picked up in the turbulence and circulated by the L.O...

Congratulations on your decision! I would like to add that unless you have EPIC software you can add I/O and create new logic or modify existing logic with password level 2. And, if you have EPIC software, you can request GE to unlock it--it's YOUR software. Your company would have to...

isulamu, Let's just step back and look at this rationally, shall we? The Expected Fuel Characteristics data is just an estimate--NO ONE EVER CHECKS THIS AGAINST THE ACTUAL RUNNING DATA DURING COMMISSIONING. (Unless there is a serious problem.) GE-design heavy duty gas turbines don't...

cheedee, I presume by differential lube oil pressure you are referring to the lube oil filter differential pressure? If you've replaced the filters and the differential pressure is already high again--and 3.5 bar is HIGH--then it certainly seems the lube oil might be dirty. GE and its...

Esoteric_Stone, Good troubleshooting--especially the part about performing an orderly shutdown and power-up of the Mark V. CONGRATULATIONS on solving the issue for now, and thank you for the feedback! It WILL NOT hurt anything to add the jumpers (just short pieces of insulated wire)...

Esoteric_Stone, Yes, if you make the modification, or have it made, the operator will still be able to manually and stop COOLDOWN just like before. The only difference will be that if you crank the unit (or if the speed pick-up inputs are erratic--which they SHOULD NOT be!) the unit will NOT...

WoodyGov, What about written explanations of functionality, and is it possible to "see" what happens inside a block without reading a functional description? In other words, is there graphical representation of what happens inside a block (even if it's not animated), along with a written...

GE has published gas turbine performance test procedures for decades. Most every Operations & Maintenance Manual included one in the manual, along with Correction Curves to be used to account for differences in ambient temperature and atmospheric pressure. You can also probably find the...

Esoteric_Stone, I want to mention, also, that GE has, in recent years, been adding a flame detected permissive to the cooldown sequence initiation logic. So, if the unit is just cranked without establishing flame it wouldn't automatically go on cooldown. If any flame was detected while the...

Thank you, Mr. Ken!!!

niazbibiyana, Two questions: 1) Can you provide the values of CPD, load (DWATT), FPG2, and FPRGCRIT when the unit is running at a stable load? 2) Can you provide the values of all the Control Constants in the block you posted?

fhabbio, Inlet Bleed Heating, at least as GE applies it for their heavy duty gas turbines, is used to protect the axial compressor when the IGVs (Inlet Guide Vanes) are closed below their normal minimum operating angle. The IGVs are closed below their normal minimum operating angle in order...

Isulamu, Since this really is a separate question not entirely related to this thread, it would be a good idea to start a new thread on the subject (for future reference). Are you saying that the unit is having problems maintaining rated speed when it gets to near rated speed? Because...

Esoteric_Stone, Is this occuring on the same Mark V turbine control panel which had the battery ground you wrote about a couple of years ago? (And which we never heard any results from?) This kind of behaviour is NOT normal. What Diagnostic Alarms (ALL of them, please--even the ones you...

My first question would be: Why does <C> need to be re-booted so often? Second, are there any discrete inputs to <C> for START or a Diesel Test? Third, if all the system are locked out, it's hard to understand how a START could be initiated if the unit Master Control Mode was in OFF. Is...

Thank you, Isulamu. I think, though, niazbibiyana is trying to ascribe some perceived problem to P2 pressure control without explaining the entire problem without bias (personal bias). Because of the control scheme he has described it is really impossible to say with any degree of...

khoriwal000, Yes. If the valve (a three-way valve) didn't move fully to the correct position that might be possible.

niazbibiyana, So, it seems there is some new SRV control scheme underfoot, but the basic function of the SRV is unchanged: It's purpose is to control the pressure upstream of the Gas Control Valves (called the interstage pressure, or the P2 pressure). And, if it's going through a MEDian...