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Burningman, So, a synchronous generator can become a non-synchronous (induction) generator when the excitation power is lost and the generator breaker is not tripped. HOWEVER, when that happens, the generator rotor usually gets very, Very, VERY hot in a pretty short period of time. And...

Terminalman, Wow. It's interesting that you didn't say the computer to monitor parameters in the GE Mark V system was a GE-supplied <I> (running IDOS and MS-DOS) or a GE Mark V HMI (running some version of MS-Windows and CIMPLICITY and TCI (a background service necessary for the computer to...

Voyager2, Thank you for the feedback!!!

Waqasbm, This is odd, because when the primary gas control valve is closing and is at 7% most of the fuel is being directed to the secondary- and transfer nozzles. You didn't mention what the secondary gas control was doing during the Lean-Lean to Premix Transfer.?.?.? What load are you...

You really need to consult the manuals for the diesel engine control system and/or the electronic overspeed protection device to understand what is possible. Yes, a lot of prime mover overspeed testing is done these days by lowering the overspeed trip setpoint on the electronic control system...

Jhon, >Good day. Its urgent please I am unaware about GE turbines. >What is the design value of natural gas CV of GE turbine? I don't believe there IS a single design value of natural gas Calorific Value for GE-design heavy duty gas turbines. It's my understanding that when a potential...

Coloftin, >Can an off the shelf Honeywell LG1093AA be hooked up >directly to the PTBA in a Mark 5? That's what the Mark V was designed to work directly with. The Mark V produces--and reads--335 VDC, so there is no need for an interface module. The only other flame detector I have ever...

Voyager2, Yes; Mark V AutoCalibrate automatically changes the servo-valve output regulator type from a Type 77 to a Type 43 when an SRV is selected. And, when the work on the SRV is complete and AutoCalibrate is exited, or another servo-operated device is selected, AutoCalibrate automatically...

It's been a while since I've seen 'fql' expressed as a percent, but, things are always changing.... I believe if you find 'fql1' in the application code (I'm presuming you have either a Mark VI or a Mark VIe) using Finder, you will see that it comes from the liquid fuel flow divider's pulse...

Javad, >I work on upgrading of GE frame 9e, Mark IV. It seems that >Lube oil is leaked from bearings, and it should be charged >regularly in the lube oil tank. Does anybody have an >estimate about the amount of this leakage? How often we need >to charge new oil to the tank? This is...

Javad, No.

Good day, yhorsef, First of all, what kind of control system is being used on the two MS5001 gas turbines? And, is it SIMPLEX, DUAL Redundant, or TMR (Triple Modular Redundant)? Second, what alarms are present when you are running at Base Load? AND, if the control system is a GE Mark*...

Javad, I have never seen atomizing air flow-rate published or documented by GE or any of its packagers. I have only pressure ratios (1.1 when running on gas fuel; 1.2 when running on liquid fuel). Neither have I ever seen temperature, only the temperature of the air entering the Main...

AAkhan, Thank you for the information.

AAkhan, We are very sorry to hear about your troubles. The infamous 'LOSS OF FLAME TRIP' Process Alarm means flame has been lost in the majority of combustors with flame detectors for no known reason--in other words, there was not a trip condition or shutdown condition that would have...

This was the first result found using my preferred World Wide Web search engine and the search term: PGT25+G4 https://www.geoilandgas.com/sites/geog/files/pgt25g4-aeroderivative-gas-turbine-flyer.pdf DLE stands for Dry Low Emissions, and it's the aero-derivative version of DLN (Dry Low...

This is a shot in the dark for me, because I have very little experience with LMs, and even less with MicroNET controllers (of the Plus or non-Plus variety). I'm a little confused about your last couple of paragraphs. You mention taking LVDTs and swapping them around, and the resistance...

shahabas, >How the exhaust temperature increases please explain it? > >from FSNL to base load... Gas turbine exhaust temperature increases because fuel flow-rate increases. And when fuel flow-rate changes, the load changes. BUT, the IGVs are not adjusted based on load--they are...

ghez2019, When did this problem start? After a maintenance outage? After a trip from load? Are you 110% confident that all the manual valves in the sensing lines for the gas compressor are in the proper positions? Has anyone done a "download" from ToolboxST to the Mark VIe? What is the...

Esoteric_Stone, >A bipolar servo can only be driven by a servo-valve output of >a Mark VIe. So, any bipolar servo must be connected to a >servo-valve output, which is driven by a servo regulator. The servo-valve application I was referring to is for infinite control of high-pressure...