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So, now the question is: Why is it felt it needs to be configured if it was found to be Enabled and there is no further configuration required?

I think that GE's lawyers would take a very dim view of these manuals being posted on the Internet. They are not intended for public distribution. I believe that anyone who receives them is supposed to sign a Non-Disclosure Agreement, or have purchased equipment controlled by Mark VIe or...

That configuration should have been done by GE or the supplier prior to commissioning. How did you find the configuration? Why is the as-found configuration in question? There is a Description field to the right of the configuration field. What does the description say? I believe...

My suggestion? GE have matrices and Fishbone diagrams for troubleshooting problems like this. If they've changed fuel nozzles, then it's likely not a fuel nozzle problem (is it?). What does GE say to do next, based on their matrices and troubleshooting diagrams?

Bob, We don't know enough about this gas turbine or exactly what "minimum load" he's referring to. Spinning Reserve is not "minimum load." Some gas turbines have a minimum load for a particular fuel. There's just too much we weren't told, and probably can never know....

Aliya, First you state: >While in temperature control mode, exhaust >temperature [exhaust temperature is TTXM!] >decreases with Increase in CPD and Increases >with decrease in CPD, So am i right till >now??? Yes; you are 100% correct. Then you write: >My question is during...

Forcing thermocouple inputs is really a very bad practice and is to be discouraged at any time. It's really unfortunate that GE made that possible with the Mark VI and many operators have learned, just as this original poster learned, that forcing them and then forgetting to unforce them--or...

The original poster has never appropriately responded to indicate if there is an HRSG in the GT exhaust and/or if there is a limit in sequencing of 400 deg C during warm-up. If there is an HRSG then it's possible the limit is to protect the HRSG components since air flow is very low during...

Process Value, There are MANY GE-design heavy duty gas turbines designed for black-start applications. They usually have diesel starting motors, and they do use the ELOP for developing Trip Oil pressure (in addition to bearing L.O. header pressure) during starting. Some have special...

Sardar9, Are you guessing?

You should refer to the L.O. P&ID (Piping Schematic) for L.O. levels. Certainly, when the unit is running the level in the L.O. tank will be slightly lower than when the unit is at rest (off cooldown). But, the difference should be only 25-50 mm (1-2 inches). Units used to have a level...

If you understand y=mx+b (or y=mx+c), don't get confused by the terminology GE uses to describe the Control Constants. This topic has been covered many times on control.com, with the basic formula in the threads. Offset is, well, offset. Basic math for a straight line. Use youTube or your...

I have never seen holes such as you described. The SRV is primarily a stop valve, so it should not pass or leak.

568 deg C is called the isothermal limit and protects the gas turbine exhaust struts and diffuser from overheating and damage caused by excessive exhaust temperature. If there is an actual limit during starting it was probably in response to some limit of a HRSG/boiler on the exhaust of the...

Spreads are caused by mechanical problems with combustion hardware. When accompanied by high dynamics, that's an even worse indication. It might also be a plugged fuel nozzle.

You haven't told us what <b>the PROBLEM</b> is. GE has very powerful computers that use empirical data gathered and analyzed over decades to calculate the values. No one should be changing, or even questioning, the values. When did your problem begin? That's where the reply to this thread...

Open a Watch Window in ToolboxST and put TTRX, TTRXP & TTRXS in it. Also put TTRX, TTRXB, FSRN, and FSRT. You should find that the Exh. Temp. Reference, TTRX, is equal to the Primary Exh. Temp. Control Reference, TTRXP, and that the Secondary, or back-up Exh. Temp. Control Reference, TTRXS, is...

> I guess my concern is, what if I have a problem with R or T at this point. My > sum of servo currents may not equal 8mA +-4mA. The -0.8 mA, +/- 0.4 mA, is a guideline. If the algebraic sum of the three currents doesn't fit that guideline the turbine will still run. There are literally...

dear; A typically--and properly--configured Speedtronic turbine control panel would <b>NOT</b> accept a command to change fuels below 95% speed. Even in an "emergency." Unless some logic signal was forced to bypass the normal logic. So, unless you have a very atypical Speedtronic...

ESKAY, Yes; the TCEA in Loc. 1 (<X>) is trying to trip the turbine. It's ETR relays are dropped out. If either remaining TCEA drops out it ETRs, then the turbine will trip. If by "looped" you mean that there is a physical jumper wire between PTBA-3 and -4, and then another jumper between...