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Hi, A single flow divider mag pick-up fault should NOT cause a turbine trip--on either a TMR- or a SIMPLEX Mark IV. So, something else is <b>also</b> amiss. Either another flow divider mag pick-up is or has failed or there is a serious wiring error (or someone has jumpered a single mag...

Ismayil, In my personal opinion <b>based on the information provided</b> the diesel starting engine warm-up speed is higher than it should be <b>and</b> the hydraulic ratchet should not be actuated until the end of the diesel warm-up time (which is when the diesel starting engine should be...

Ismayil, You notably did not respond to the questions about why the diesel starting motor warm-up speed was more than 450 RPM, and what the diesel starting engine warm-up speed has been in the past (has it been trending upwards over time), <b>AND</b> whether the hydraulic ratchet was...

Mr. Om Choudhary, I have not seen any Compressor Operating Limit protection operate at ambient temperatures as high as 16 deg C, but I have seen some Compressor Operating Limit protection operate at ambient temperatures closer to 0 deg C. And, this only for units equipped with DLN combustors...

eggplant, I'm not sure if I understand the question; this is a very old thread. Yes; most of the GE Speedtronic turbine control systems I have had the pleasure to work on used drop-out-to-run logic for the D.C. Emergency Lube Oil Pump motor starter. I have trouble envisioning how both...

Do these units have DLN-I combustion systems, and if so, do they have Inlet Bleed Heat and is the Inlet Bleed Heat system enabled and in service? If the units do not have DLN-I combustors, do the units have IGV Exhaust Temperature Control and if so, is IGV Exhaust Temperature Control active...

Ismayil, The single most important question (I forgot) to ask when a problem like this starts on a piece of equipment that had been running without problems is: When did this problem start, and what changed between the time the equipment was working correctly and now? Let's say this...

Cleverly hidden at the far right edge of the Menu bar at the top of every control.com webpage is a 'Search' feature that can be used to quickly search the control.com Archives for past threads with any search terms (using the Search Help function the first couple of uses is highly recommended)...

> Can anyone advice why the shaft is moving before > the diesel engine warm up timer done? Was the shaft <b>actually</b> moving while the starting diesel engine was warming up? What kind of clutch (jaw or SSS) is used between the torque converter and the Access. Gear Box/turbine shaft...

Quick correction: Calculated firing temperature in GE heavy duty gas turbine control systems is used for one thing--combustion mode changes ("switches"). When TTRF (or TTRF1) reaches certain values, that initiates combustion mode changes on units equipped with DLN combustion systems...

TurboPower, The presentations I viewed were for DLN-I problems; I am only presuming there is something similar for DLN 2.6e systems. The presentations I saw were breakdowns of Fishbone diagrams for explaining various DLN-I problems--cause and effect explanations. I would have to believe...

I would suspect that if the two motors are not on the same shady the motor interlock was improperly supplied.

It depends on the power factor of the motor and to some extent the load of the motor.

Sorry; I meant to be addressing TurboPower, not FSX, in this thread....

m.a, Usually, the DC Seal Oil Pump motor is directly coupled to the AC Seal Oil Pump motor which is directly coupled to the Auxiliary Seal Oil Pump. Essentially they are all on one shaft (the pump and two motors). To answer your direct question: It's a <b>really bad</b> idea to be spinning...

FSX/MIKEVI, I have been on a couple of root-cause analyses lately of DLN-I units with combustion issues and I have been very surprised at the forthcoming attitude of GE when asked for more information about tuning and failure modes; I have to say, it was rather refreshing though surprising...

MIKEVI, Thanks very much; we all know how time-consuming it can be to look up information in the GE Parts List drawing books.!.!.! So, as suspected, the Main- and Aux. Hyd. Pumps are the same on each of the Frame 5P and Frame 7EA units. Yes; it's likely the pressure compensators are...

Kevin, Thanks! I do know people who are looking for the single character type of markers Partex sells, so this is very helpful.

Karthi, There is precious little in the way of links/manuals available on the World Wide Web for gas turbine controls. There are several reasons for that, mostly because the OEMs aren't producing very much in the way of documentation and what they are producing they are vigorously protecting...

TurboPower, Understanding DLN Tuning (heavy emphasis on the 'tuning' term) means one really needs to understand the fuel nozzles, fuel nozzle passages (fuel flows out of more than one set of orifices in a DLN 2.6+ fuel nozzle, as well as from pegs around the body of the combustion can (the...