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renjith11121, While the unit is CRANKing after the expected "Failure to Ignite" when the ignitors (spark plugs) were intentionally disabled by removing the power to the ignitor circuit, it will be necessary to restore the power to the igniter (spark plug) circuit before selecting CRANK and...

renjith11121, I neglected to write that the liquid fuel supply pump pressure specification is usually about 55-65 psig; see the Device Summary, or if GE or the turbine packager supplied the Liquid Fuel Forwarding System there will be a P&ID for the system, and the pressure regulator (if...

renjith11121, I did see something about your liquid fuel flow divider pressure readings, and I dismissed them because they were too high for firing pressures. I now see they are probably from FSNL (Full Speed-No Load). And, YES--the pressures are way out of line. The high pressure fuel...

Gamer123, The only thing which sometimes happens, and usually when the unit is starting from a "cold" condition and the ambient is also cold is that sometimes if one tries to load a unit with DLN combustors too quickly it doesn't make the transfers very well. Mostly happens with DLN-I units...

renjith11121, I want to preface the remarks below by saying the sequences described are for a non-DLN combustor-equipped unit (in other words it is for a unit with conventional, diffusion flame combustors with a single fuel nozzle per combustor), with two flame detectors (possibly four). It's...

gamer123, On a GE-design heavy duty gas turbine control system, it would be possible to select Fast Load at any load after the generator breaker closes. But, if it was enabled at 41% load (70 MW out of 170 MW) the time to Base Load would be reduced by 41%--so instead of taking, let's say 4...

Gamer123, I can only address fast loading as implemented on GE-design heavy duty gas turbines. Fast loading is simply a VERY fast loading ramp rate for the gas turbine. For some smaller machines, it can be as fast as 30 seconds from 0 MW to Base Load (25MW, 40 MW, or 80 MW). Larger (F-class)...

renjith11121, I want to preface my reply with this: It is very difficult to ensure reliable starting on distillate fuel of a duel fuel machine. Full stop. Period. It's just not an easy thing to achieve. Can it be done? Yes. Is it common (reliable starting on distillate fuel)? No. So, you and...

etoilesh, The first question I have is: Why do you feel it is necessary to have the standby unit continuously on Cooldown? If it's because someone believes that the unit MUST be on Cooldown prior to EVERY start, that's false. If the unit has been off Cooldown for 24 or even 48 hours and it's...

renjith11121, Without being able to see the programming of the A-B ControLogix it's pretty much impossible. All we can do here is talk about typical GE-design Frame 5 heavy duty gas turbine control and protection philosophy. And, I don't have access to any Mark II elementaries; I can only...

manolis9191, One has to admire your perseverance. I just put "Moog G631" in my preferred World Wide Web search engine, and came up with this as the top result: http://www.moog.com/literature/ICD/g631seriesvalves.pdf There is some really good information, especially on pages 13 and...

Um, ..., er, ..., Does this turbine have a GE Mark* turbine control system? It would seem to be very difficult to create an HMI display in CIMPLICITY to "reject" exhaust T/Cs--<b>BUT</b> I have seen such screens in WonderWare and FactoryTalk PLC-based turbine control system HMIs.... Most...

Hayoper, I am no steam turbine expert, and while I think I have heard of leaking (worn) steam turbine seals contributing to unintentional roll-off, I have no personal experience with that phenomenon and so won't make a comment one way or the other. I would seem it would take a LOT of steam to...

nzfarmer, You <i>do</i> know what happens when you ass-u-me something.?.?.? Look, I've been wrong before--and I'll be wrong several times in the future. It's just extremely difficult to understand how the three wires (which are connected to two wires, you said) can make a potentiometer or...

mazenshanabeash, This question must be the second most asked question in the history of control.com, only surpassed by questions about Droop speed control. Seriously. Unfortunately, each time this question gets asked and answered it's just a little different--just enough to make it...

nzfarmer, I was searching for a link to a worm gear picture, and I learned something: the thing I was calling a worm gear is actually a worm, and the round, multi-toothed thing I was calling a cog or gear is actually the worm gear. The assembly of the worm gear (sometimes called a worm wheel)...

esdauto, In maths, formula and equation mean (describe) the same thing. In my post to this very thread above, of 17 October, 2017, 6:30 pm, the equation (formula) is stated very clearly: >The general Droop speed control formula is: > >Energy flow-rate into prime mover = ((prime mover...

What a difference a word makes.!.!.! "I have seen people remove the load coupling <b>COVER</b>, .... Remove the load coupling <b>cover</b>, at the generator rotor end of the coupling, then wrap a long, wide nylon strap around the coupling and use a chainfall to pull on the end of the strap...

I have seen people remove the load coupling, wrap a LONG nylon strap around the load coupling (overlapping the wraps), attach a chainfall to the free end of the strap and the hook of the chainfall to a piece of structural steel nearby, and use the chainfall to slowly rotate the shaft. It is...

nzfarmer, Many people have posted photos, docs, and videos on web hosting sites, such as www.tinypic.com. They then post the URL to the file(s) in a response to control.com (like you did with the link to the google docs photo). www.tinypic.com is free, but the files don't stay up for a long...