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Bouncin, There's something wrong with the governor of the portable generator. It should be able to maintain 5500 Watts at 60 Hz with no problem. The only caveat I could think of would be the power conversion assembly of the UPS may not look like a "stable" load depending on how it "fires" or...

jameelrahman, DLN changes everything. When a GE-design heavy duty gas turbine has DLN combustors, IGVs are used to help control combustion reference temperature--and exhaust temperature control is secondary. In fact, IGV Temperature Control is always ON (it can't be disabled--not on any of...

Siem, You have certainly researched this topic and have arrived at a very good understanding of the basics involved. Yes; one has to "declare" the signal name by creating a Pin and then assigning that pin to a physical output. And, then one needs to create the "logic" to energize/de-energize...

ADOS, >1. Can a generator operate both in droop and AGC modes? The two are not exclusive; that is it's not an either-or decision. In fact, AGC is effectively "remote" manual control of the speed reference. AGC just allows a remote operator or control system to change the speed reference...

I've gone back to the original post and looked over the original questions: >At 92% THL the GT goes to exhaust temperature control. >Usually at this period of year (cold weather) the GT reaches >easily the 98%TNL. >My questions: Are GCV fluctuations the reason that the GT >Control...

MOOG is a manufacturer of electro-hydraulic servo-valves, commonly referred to in the GE-design heavy duty gas turbine community as servo valves. Servo-valves translate a bipolar current into hydraulic flow to the actuator to open or close the device (fuel valve; IGVs; etc.). The polarity and...

>>>!!!CORRECTION!!!<<< > The current for the GCV (FSG) ... That <b>should have read</b>: The current for the GCV (F<b>A</b>G) ... F<b>A</b>G is the servo current signal to each of the three servo coils from each of the three control processors. > FSRN is also fluctuating--in tandem...

barindra75, > When Temp. control is <b>on</b>, gas turbine exhaust will be maintained > at max temperature, i.e. IGV will be at min possible temp. When IGV Temperature Control is ON, the IGVs are held at the lowest possible <b>position</b> in order to maximize exhaust temperature. > 1...

barindra75, > Also, the P to I converter and its pre-filter (last chance filter) for any choking. Please--what is the "P to I converter"?

bkarim55, Well, well, well. Data, but not all the data we asked for.... And, at a once-per-second resolution, which isn't very good. There are some things which can be said, based on the information provided. First, the exhaust temperature (TTXM) is relatively stable; the HP shaft speed...

Sardar99, To be absolutely certain, one would need to look at the application code running in the Mark VIe. In general, the ESOP only runs if there's no AC power to the MCC section housing the Aux. SOP motor starter, and there's a hydrogen purge in progress. If there is hydrogen in the...

No Speedtronic turbine control panel should ever be run directly off the battery charger output. Especially older units with older battery chargers; output capacitors fail over time and the battery actually serves to reduce output spikes from even a new charger; removing the battery from the...

Jolek, Have you checked to see that all the ribbon cables and connectors are properly and fully seated on all the cards--including the TCPS card in Loc. 5 (in the back of the processor)? The 3PL cable connecting the DCC, LCC and TCQA (and TCQB, if present) has been known to be a problem; it's...

JLRebo, This topic has been covered MANY TIMES on control.com There is a 'Search' field at the far right side of the Menu bar at the top of every control.com webpage. Do use the Search 'Help' first. Try searching for: "hydraulic ratchet" +"hydraulic ratchet" +hydraulic +ratchet...

Why be the same, when you can be different? Why use pesos in one country, renminbi in another country, dhirhams in another country, pounds in another country and Euros in some countries? Why use the metric system in some countries, and SAE in other countries? "Because mine is better...

MIKEVI, I haven't had a lot of exposure to some of the newer machines that have, hence the reason for my question. People are ALWAYS telling that their unit trips on a "Failure to Ignite" and while I have been told by other experienced controls people they DID work on units which actually...

MARKVI, Great detail--thanks! I only have one quibble--and that is what happens when the unit fails to establish flame during starting. In my experience, when the unit fails to fire on the first START attempt the unit just continues to spin ("crank") until an operator takes some action...

Thanks for the feedback. >Surprisingly, the L33HRF which we tried to reset several >times since the issue started without any positive result. >was again reset this morning and the clutch became fully >engaged then ratchet sequence was normalized. L33HRF is a logic signal that goes to a...

Hi, I'll answer two of the questions: > 7.on what basis fuel stroke reference for all the gas valves > is set while starting the turbine or FSR is CONSTANT? Well, FSR is the total amount of fuel to be flowing to the machine, and when there are multiple fuel nozzles operating in a...

Hi, Does the hydraulic ratchet system use a self-sequencing mechanism, usually called VA14-1, I believe)? (Upcoming engineers should always consult the P&IDs for the equipment they are working on/responsible for; the best upcoming engineers have their own set of P&IDs that they can write on...