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  1. M

    Mechanical Overspeed Bolt

    Dear BB, I suspect you will find a lot of opinions, especially on this subject. My personal opinion is that if you have a TMR MKV or MKVI panel then testing of the overspeed bolt should be unnecessary. My reasoning is that you basically have overspeed protection from the main core, either...
  2. M

    GE Turbine compressor Discharge and Fuel gas Pressure

    Dear Gladymady, typically the preferred arrangement is to have three transmitters so that each core (R,S,and T)can have its own transmitter to look at. In the old days of MKIV there was limited I/O and the prices for transmitters were much higher, as I am sure you are aware. Back then GE...
  3. M

    Servo suicide Mark VI

    Dear Turan, thank you for the additional information. At this point without being onsite I think I would recommend trying a new VSVO card for "T" core. If you have truly verified all wiring for the servo valve and LVDT's then this might be the next logical step. As I said before it seems...
  4. M

    Servo suicide Mark VI

    Dear Tarun, just to add a few things to CSA, since I have seen this same error a couple of times only, and in those cases it was due to wire problems. The MKVI basically is able to monitor the desired current to each servo, and if what it wants to see and what it actually sees differs by more...
  5. M

    L86HD alarm

    Dear butters08, you will need to review your CSP to verify your logic conforms to my suggestions below. L86HD for most Frame V machines will activate if: The pressure switch for either gas or liquid fuel hydraulic pressure still indicates hydraulic pressure after L4 drops out, or if the...
  6. M

    GE Mark VIe Control System

    Frank, as Peg says you can talk to some of the non-OEM suppliers out there but I highly doubt that much is out there for MKVIE systems yet. This system being so new and still going through growing pains I think you may be stuck with the OEM for a while yet. Depending on your relationship with...
  7. M

    GE frame 7E spark plug

    Dear Mohd, not that it is entirely important, but I think the plugs are usually located in cans #1 and #10. You should be able to operate with only one spark plug, two are basically for redundancy, the crossfire tubes should assure flame travels to all cans from a single plug/can...
  8. M

    GE Frame 6 GT Fast Start

    JW, as CSA mentioned the fact that your units are diesel start and DLN presents some challenges. Again as CSA mentions there are multiple things that can be done to shorten time from start to baseload. The most common change I have seen is to raise the loading rate. You did not mention what...
  9. M

    MarkVI PS 125 VDC failure

    Luis, my personal feeling is that the power supply has been the weak link of the MKVI system. I have not personally seen it but I think GE released a letter stating that they identified a weak/poor component run that led to a high failure rate of a certain serial number string of power...
  10. M

    Other forums

    Tabb, I think no answer is an answer in itself. I have not seen any other sites on the web with experience and people like what is available here. You might be able to join a particular users group that is specific to one turbine, but for general non manufacturer specific turbine...
  11. M

    GE Frame 6 GT Fast Start

    JW, I have had experience with reducing start time on a frame 5, but not a frame 6. I can tell you that we worked to shorten the time from start to FSNL and the loading rate of the unit from breaker closure to baseload. I am not familiar with what the differences are between a frame 5 and 6...
  12. M

    MARK-VI TRIP HISTORY

    First and foremost I must ask when this problem started? From your post it is not exactly clear what the problem is that you are trying to describe, and more importantly if it ever worked, or when it stopped working. TCI alarm and event reports are generated by TCI and put into a file...
  13. M

    MARK VI UCVG

    UJ, the best way to understand how is to refer to the MKVI help section on the dynamic data recorder. Basically you need to validate the complete .m6b file (highlight the G1 or whatever is at the top of the tree in the left pane. Then either select device-download-update dynamic data recorder...
  14. M

    MARK VI UCVG

    Dear UJ, I would ask if someone changed the configuration of the Dynamic Data Recorder, but did not update the configuration in the controller? This alarm should not have just shown up by itself. The recorder can be updated without downloading the application code so it "should" be ok to do...
  15. M

    Cicode Tagwrite Function

    Patrick, thank you very much for the reply. I already had the tag "read" by virtue of creating the variable tag coming from the OPC server. I used your code for a TagWrite, While (1) DO and sleep for the loop function and it works great. Thanks very much for helping me along!
  16. M

    Cicode Tagwrite Function

    I am not a visual basic or Cicode expert and so am looking for someone to help (hold my hand). I have a Scada system running Citect Scada 6.1 service pack B. This system is connected to an OPC server, and two Allen Bradely PLC's. I would like help writing some Cicode that will take values from...
  17. M

    Ex 2000 Arcnet problem

    Dear RBG, not sure if your post is aimed at WAS or me, but in my case with the MKVI and EX2K I am running DS215UCIB with a PC104 Arcnet Card made by contemporary controls mated through an IS200PANA board.
  18. M

    Failure to Reignite Primary Zone

    Dear ASPX, we operate 2 7EA's gas only in load following mode. We are at approximately 42K fired hours, not sure how that compares to yours. We inspect plugs and cables at each CI, hot gas etc. I have seen wear on the spark plugs where they pass through the liner, due to looseness in the...
  19. M

    Ex 2000 Arcnet problem

    Dear WAS, we recently encountered a problem with our ARCNET communication between our EX2000 and the MKVI unit. Our configuration is different from yours since you are MKV, not MKVI but I will recap what we went through/found. In the beginning we were encountering intermittent problems with...
  20. M

    Shutdown Sequence

    A thank you to CSA and Otised for your insight. I definitely understand the limitations of the computing horsepower of the "legacy" speedtronic systems, although I missed being able to experience them based on my time in the industry. I appreciate your answers that I think confirm the ideas I...
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