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This is not an unusual occurrence after a maintenance outage. I believe you neglected to tell us that once the unit accelerates to near FSNL (probably around 80% TNH, maybe higher) that the flame is re-established in the cans where it was not present. It's probably pretty likely that prior to...

Purge air is generally compressor discharge air used to purge lines of combustible vapors as well as to cool components. For example, CPD used to purge the gas fuel system when operating on liquid fuel, the purge air is supposed to ensure that there is no combustible gas/air mixture present in...

Turbine Incomplete Sequence says it's taken longer to get synchronized to the grid than someone thinks it should have. And, TCE breaker close time out of limits says the feedback from the breaker hasn't changed state when it was expected to. As you mentioned, on the Synch Display there should...

Something seems to be amiss. I don't think I've ever seen 190 psig on a 7EA, even with compressor inlet temperatures below 30 deg F. Isn't there a CPD gauge on the Acc. Gage Cabinet? Has thought been given to installing a calibrated gauge to measure the CPD and compare it to the CPD feedback...

I have neglected to ask: When did this problem start? Again, I don't recall every seeing an IGV system drawing where when 20TV was de-energized that hydraulic pressure wasn't routed to cause the IGVs to move to the closed position. I haven't seen every system designed, but many of them. Can...

Electrical machines (motors and generators) are devices for converting electrical power into mechanical power (motors) and converting mechanical power into electrical power (generators). There is virtually no difference between a motor and a generator. In fact, in some applications the...

Please have a look at the Piping Schematics (P&IDs) for the Trip Oil System and the IGVs. Energizing 20TV should work to allow high-pressure hydraulic oil to flow through the servo-valve to the IGV actuator. When there is no Trip Oil pressure because 20TV is de-energized then high-pressure...

Was an off-line compressor water wash performed immediately before or after the outage? Were the turbine air inlet filters changed during the outage? Was there any work done in the gas turbine exhaust during the outage? Have you verified the compressor discharge pressure transmitter...

When you copy CSP.PRN and CSP_XREF.PRN to another computer, you don't have to generate a new one using the CSP Documentor. As long as all the <I>s are the same (and the Mark V cards/PROMsets are the same), then if the same CSP is used in all the Mark Vs, the CSP would be the same for all.

To try to find the TCI version number, you might look in G:\LOG at the file VERSIONS.DAT (it's an ASCII text file) and see if the version of TCI is listed there. You might also look at the TCI Control Panel applet and see if you can find the version number there. But, those are fairly old...

You haven't told us which operator interface is used with your Mark V(s). I believe that ALARM_HISTORY only works with GE Mark V HMIs (running MS-Windows, CIMPLICITY, and TCI (Turbine Control Interface)). And, I believe it only works with "newer" versions of TCI and CIMPLICITY (but I can't...

Further clarification to Issue #2: When you go to Rung Display, you are looking at what is in the CSP Segment Source files on the <I>, not what is running in the Mark V. Live data from the Mark V is used to "animate" the elements of the rungs in Rung Display. With Rung Display you are *NOT*...

Do all the Mark Vs have the same cards and PROMsets installed in them? If they do, then you can just copy the modified files, including the new CSP Printout files (CSP.PRN and CSP_XREF.PRN) to the other <I>s with no problems. Running the CSP Documentor can take a long time (as I'm sure you...

Thanks for the feedback! Have you checked the servo valve part number against the appropriate parts list for the gas valve assembly? Are you sure the servo is the correct one for the application? A lot of people think that all the servos on some GE-design heavy duty gas turbines are...

Your original description read (and I'm quoting): while during turning gear auxiliary pump ON Turning/Lifting pump ON Turning solenoid valve energized engaging solenoid valve energized From that description it can be determined that the operation of the turning gear requires the...

Blown MOVs are not necessarily related to grounds. There is likely some problem with voltage spiking on the power input to the TCPD. If you have a DACA then it could be that the AC input to the DACA is not properly grounded (it should NOT be a floating AC that powers the DACA). Ensure the...

Yes; the Geiger-Mueller style, Honeywell flame detectors will work fine with the Mark VIe. It sounds as if the acceleration rate is excessive and when you are nearing FSNL that FSR gets cut back excessively and causing the low flame intensity/indication. This is something which can be looked...

In other words, you need to find a way to energize the solenoids when the control system is shut down. And to be able to run the pumps, also. And, it's suggested that you make this method a kind of permanent emergency fallback method by putting together something that can be quickly and...

You should be able to run the pumps in HAND or MANUAL. You will need to find a suitable source of voltage/current for the two solenoids outside of the control panel. You would do well to make a small "panel" consisting of a couple of fuses (POSITIVE leg or HOT leg for each solenoid, at a...

Because, if installed correctly I've never seen it not work. What problems are you having? Did you install it from a self-extracting install file? Or, did you just copy an executable from another PC or operator interface? Are you trying to use Mark V Studio to view live data in a CSP...