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Cap21, First, what fuel is the unit being started on? Second, does it burn any other fuel (and if so, what fuel(s) and have you tried starting on a different fuel and if so what, exactly where the results)? Third, would you please be more specific about the troubleshooting you've done--and...

RichT1, Axial compressor stall detection was NOT deemed as critical to the B/E-class units (including Frame 5s, 6Bs and 7E/EA units) as it was for the Femme-class units (the F-class unit fleet). The B/E-class units all had LOTS of engineering- and safety margin built in to them, while...

Excellent information! Thank you very much for the time and effort and detail provided!!!

okaaaayyy.... That was informative. One MUST remember: Not all gas turbines are created (designed) equally. Not even those of the same designer/manufacturer (GE, for example, does NOT use lift oil (jacking oil) on MANY of their non F-class heavy duty gas turbines). The desicion to use or not...

cheedee, Happy to hear the download and re-boot went well. I am concerned about the value of gain shown in the photo you attached--but only because you never told how the new transmitter was scaled. I made an example of a transmitter scaled for 0-300 psig for 1-5 VDC resulting in a gain of 75...

cheedee, Weather and holiday flyers are going to keep me from reaching home any time soon.... So, I don't have access to any Mark V files at this time. I believe something similar is possible for the P2 pressure transmitter inputs--BUT, the type of transmitters used for P2 pressure sensing...

cheedee, ”The book says....” you should be able to download to all three control processors (one at a time), and then re-boot each control processor one at a time waiting at least one minute between re-booting each processor, and starting with <T> processor then <S> then <R>. It is STRONGLY...

cheedee, I DO NOT have access to any Mark V drawings at this writing (I may be able to get access next week, but there are no guarantees). If I recall correctly, there is an Offset value (in Volts DC) and a Gain value (in Volts per PSIG, or PSIG per Volt DC--I can't recall exactly, but it...

Khizar, You do know that if the polarity of the 335 VDC is reversed to a Geiger-Mueller style (Honeywells are Geiger-Mueller style flame detectors) that if a high intensity light is applied to the lens that the flame detector will be ruined.... Shield drain wires are a huge subject which has...

Khizar, Well, I would ask the question: How was 28FD-7 tested? Because the data you provided showed it was working fine before it was "tested" and found faulty.... I'm going to say that the likely problem with the currently-installed 28FD-7 is: wiring issue(s). Most people are afraid--very...

vscontrol, There are several ”options” for searching using Find. All of them are listed in the Find pop-up window and include 'Match case'. There is also a drop-down just beneath the text entry field that includes choices such as 'Anywhere,' 'Begins with,' 'Anywhere' and others. Most, but not...

Okay; we're making (some) progress. I think. So, when the engine connected to this questionable cubical of the "big white thing" and experiences smoking and negative KW (reverse power)--is it being operated in parallel with other gen-sets also connected to the "big white thing?" OR, does the...

Okay; I'm beginning to understand the cubical thing. And, I'm beginning to believe these units are operated independently of other units--so the common bus in the big white thing with the five plug bays (sometimes called cubicals), and I'm presuming that big white thing is powering a load...

There is something amiss with the wiring or sensors in the suspect cubical. If the gen-set actually dropped load in 1 or 5 seconds and then just as quickly picked-up load again there would be a clanging/banging noise at the engine and eventually the engine OR the coupling between the engine and...

munna, Ah, the Mark VIe$.... Totally unnecessary and outrageously expensive. But I digress.... I presume the unit has conventional combustors (diffusion flame combustors, as opposed to DLN (Dry Low NOx) combustors which stage the fuel in two different combustion zones in the combustor and use...

Intzar, If you want help and you don't provide good information in the first post, you need to answer the questions which were asked of you. Even if you deem them irrelevant for whatever reason. We are not there. We can't see what you can see. We don't know what you know (or don't know). We...

munna, There are LOTS of different implementations of Mark VIe out in the world right now. Many only use <R>, <S> and <T>, or <R> and <S>. Many now use Mark VIeS for "emergency" protection (thank you EU protectionists!) which complicates this explanation greatly because you haven't described...

I saw a similar problem once when the coupling between the pump and the electric motor was slipping and causing erratic pump discharge pressure and flow. I have also encountered a similar problem when the flow path downstream of the pump had a problem that resulted in excessive flow through the...

Eh oil, eh? Do you mean electro-hydraulic oil? (Oil used in hydraulic systems the flow-rate and direction of which is controlled by electro-hydraulic servo valves or something similar? You say the pressure from one pump is unstable. Is the pressure from the other pump unstable also? Do the...

Sktejaswi, You have NOT provided an information on these "cubicals" and how one engine can be connected to different cubicals. If, as has been said, this problem is only occurring on one engine when connected to one specific cubical, then you have your direction: Examine the interconnection...