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  1. M

    Choice between SPPA T3000 and Ovation

    I can only speak with experiences with Ovation and ABB. We currently operate a 250MW base loaded gas turbine plant with an Emerson ovation system commissioned in 2005. Our experience with the ovation system has been very positive. A lot of the ovation hardware is based on the older WDPF...
  2. M

    Mark VI

    Dear ME, I suspect that from your post that you run your gas turbines at base load (temperature) all the time, and expect to see that displayed on the HMI. How long is turbine at "part load"? If it is for very short periods of time during high ambient temperatures then it may be occurring...
  3. M

    Advantages of Mark VI and Mark V over Mark IV?

    Dear PC, the MKVIE has many differences from the MKVI, the biggest difference is that the MKVIE is Ethernet based so is easier to implement as a truly distributed control system. The controllers are smaller than the original MKVI and instead of using a 37 pin cable to connect the controller to...
  4. M

    Looking for information on the ABB EXCOM protocol

    Peter, I do not have these specific manuals but I do have quite a number of ABB manuals in electronic format. What type of controllers are you working with? Most of what I have deals with AC410 and AC160 controllers, but the communications are pretty similar. DAT elements are just...
  5. M

    MODBUS TCP TO MODBUS RTU

    I am working on a communication link between an Emerson Ovation DCS and an ABB AC410 controller. The Emerson talks modbus TCP and the AC410 speaks modbus RTU. I want to purchase an easy to configure device to link the two. I saw in a previous post a recommendation of a device from Moxa. I...
  6. M

    MKVI Generator Synchronization

    Dear CSA, It has taken me a while, but I wanted to report back on the status of this issue for your thoughts at least. We have had the chance to synchronize this unit 3 times since the last problem, and have not encountered any issues. I have set up a 40ms trend for each sync event, but all...
  7. M

    GE Server Failure

    Dear MarkVI, We have 8 MKVI servers running on Win2k. So far I have had 1 hard drive failure. We ghost all of our machines yearly. In this case it was a quick repair to replace the hard drive and install the ghost image on the new drive. In your case if you plan to get a new server some...
  8. M

    Fuel Control Valve Failure

    Dear datsacorn2511, not knowing a lot about your plant my answer may not be 100% correct, but from what information you provided: 1: Yes, opening the steam vent valve was the best course of action, hopefully you were also able to reduce fuel quickly as well. 2: Opening the fuel valve...
  9. M

    GE gas turbines water wash. in DLN gas turbines water wash should be done at base load

    Dear GE Gas Turbines, We perform an online rinse/wash to our GE7EA DLN 1.0 turbines daily. GE specifies that the online wash should be done at base load only with IGV's at maximum angle and IBH the inlet bleed heat valve closed. Keeping the IGV's at or near maximum angle reduces chances of...
  10. M

    Advantages of Mark VI and Mark V over Mark IV?

    James, We have 2 Frame 5 gas turbines in service since 1985 that we upgraded from MKIV to MKVI approximately 3 years ago. We did this for two main reasons: spare part availability and lack of experienced personnel comfortable with MKIV programming. We were also building a new plant that was...
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