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Andy, Sect. 8.5 of the Mark V Application Manual, GEH-6195, describes the entire process of "adding" analog inputs, including mA inputs, to a Mark V.

Andy, My question is: Is the Control Constant used in any other calculation? If so, changing the units may adversely affect the other calculation. So, before we go down this path and possibly cause other problems, let's answer this question. When you say the spare mA input was...

Ayman, Thanks very much for the feedback!

When one is dealing with VArs, one has to take the flow in the context of the discussion. From a <b>generator</b> perspective, lagging VArs feed a lagging load. Lagging VArs flowing "out" of a generator are considered to be positive, while VArs flowing "into" a generator are considered to be...

That kind of "simulation" (more properly called modeling) would require a LOT of data about the machine you are wanting to experiment on that the OEM would probably consider proprietary. There are some very sophisticated power plant modeling softwares available that could probably be adapted...

Oluwafemi Ogundaisi, We are still waiting on feedback from the previous post, about the resolution to the loud bangs and flames coming from the exhaust of the gas turbine. This newest post has been covered on control.com many times before: it's related to droop speed control. If a...

I believe there are two reasons why the fuel flow "to the generator" is higher when the generator is producing 50 MW with 25 MVAr than when it is producing 50 MW with 5 MVAr. First, the VA is higher at 50 MW and 25 MVAr. This is a measure of the total energy (reactive ..., er, ... uh, ...

Kindly explain the grid fault and the magnitude of any frequency excursions--high or low. What alarms did you find that you believe were not relevant? Kindly list all alarms that preceded the STOP and any after the stop as well. Did any generator- or transformer protective relays operate...

The English "selection" is to click on the cyan (light blue) English characters at the top or bottom of the information on the left side of the middle of the page.

I need a watch. Which watch is best: analog or digital? How would you answer that question? The answer depends on how you want to use the simulator. Determine, or state, how you will be using the simulator and perhaps someone here can help guide you. If this is just a "generic" gas...

Thanks for the feedback!

Oluwafemi Ogundaisi, It is virtually impossible for me to be of much more help to you, or to Solomon Osayi (who has also opened a thread for this same site), because we can't see the Piping & Instrumentation Diagrams (P&IDs, or Piping Schematics) for the turbine, and we can't see the...

You can use your preferred Internet search engine to search for "generator load angle" and "synchronous generator load angle" and find MANY relevant search results. I liked this one best (not because I like maths, or because the grammar and spelling are like mine lately) but because it was quite...

Solomon Osayi, Oluwafemi Ogundaisi has already been inquiring about this same issue at the same site. See the following thread: http://www.control.com/thread/1315406623#1339487865 And read on down from there. It is suggested that site have someone knowledgeable come to witness and...

I believe (I don't have access to a Mark V operator interface at this writing) that Socket 4 is for the TCEA card, and Socket 15 is for the TCDA card. The interesting thing here is that the IONET runs from the control processor (in this case <T>) to the TCEA in Loc. 5 of <P>, and from the...

I'm in agreement with you, otised. All Frame 6s <b>should have</b> modulated IGVs. I've had people tell me that IGVs were two-position because at closed they were at 34 DGA, and at maximum they were at 84 DGA, but, in fact they were modulated to intermediate positions during normal operation...

Isn't the "health" of the machine directly related to performance and efficiency? Even trying to predict parts life would involve some measure of degradation of efficiency and/or performance. If the tool isn't being used to optimize performance and efficiency by "predicting" the health of...

(I have this feeling I'm going to regret this.) If you have a GE Speedtronic turbine control system on a Frame 6 it's mostly likely a Mark II or a Mark IV. If you have a GE Speedtronic turbine control system then the name of the solenoid that controls the IGV position (for a two-position...

There was some sequencing/application code logic that ran in some early digital Speedtronic systems that performed some communication/health checks between processors and between processors and the protective processors. Those communication/health checks been replaced of late by some operating...

bob Johnston, Yes; it is an interesting subject, isn't it? I spend a great deal of time thinking about training, and the Speedtronic training I received over the years, and the manuals produced by the OEM--for the turbines and controls, and for the training they provide. You are right...