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You will need as many floppy disks as required for the operation, and that will depend on how you perform the operation . I would suggest a slightly different method, installing the new hard drive in the working <I> as the second hard drive and copying the contents of the existing hard drive...

When couplings repeatedly fail it's a pretty sure sign there is either an alignment problem or an excessive load. I have seen improperly configured hydraulic system relief valves (being incorrectly used as pressure regulators) cause excessive load on Aux. Hyd. Pump motors. Also,incorrect...

This machine is probably still under warranty. What does the packager say about the problem? I am entirely unclear about the current state of the problem(s). Use the Mark VI manuals and Toolbox help. MIKEVI has also provided some very useful information to which you have not fully...

The speed of a synchronous machine does <b>NOT</b> change when being operated in parallel (<b>synchronized</b>) with other synchronous machines (on a grid with proper supervision). If the torque being supplied to a synchronous machine is more than what is required to keep that synchronous...

What does GE say about the problem?

Yes; just post the link to the information. You'll probably get more downloads than comments.

Because some operators can't be bothered operating a machine, so their supervisors want everything to be automated so the operators won't screw up?

This is kind of interesting. A Speedtronic Mark V has two (2) electrical overspeeds (usually set at the same value, 110% of rated), and a GE-design heavy duty gas turbine of the vintage you are describing usually has a mechanical overspeed bolt, which has a setting of approximately 112.5% of...

A synchronous electric machine can be either a motor or a generator depending on the amount of torque being applied to the synchronous machine. If the torque exceeds the amount of power required to keep the synchronous machine spinning at rated frequency when connected to a grid supplying a load...

So, are you saying the turbine was tripped because of a Generator Differential Lockout? That 'Generator Differential Lockout' was the cause of a turbine trip? A generator differential lockout device is usually a manually latched "reset" device that can be unlatched by any one of multiple...

Sir, This sounds like some kind of "Megawatt Reserve" function. Megawatt Reserve is a means for holding some megawatts "in reserve" by limiting output. If there is some kind of need (say frequency disturbance) then the unit can respond with a few "extra" megawatts. So, by definition, if...

Umar/MIKEVI, First of all, this topic was covered in a previous thread (use the control.com 'Search' feature)--very nearly identical. The original poster (and apparently his company) did not want to believe that the torque converter was the problem, but it was ultimately found to have been...

Thanks for kind words--and the link to the book! I'm sorry to say, my experience is almost exclusively with synchronous machines. I have some experience with adjustable frequency drives in regeneration ("braking") but that's about it.

Thanks very much for this! I recall reading something similar in university, but have never been able to find that quote. Hooray for old manuals and references! And thanks for posting this!

This explanation presumes the DC supply is ungrounded, with a possibility of a ground reference circuit (basically a voltage divider network consisting of two resistors of equal value in series, the center of which is grounded). The reason you may not have received a response is we don't know...

And we wish to inform you that you must provide <b>much more</b> information than you have provided. Further, it's most likely that the SRV alarm is <b>NOT</b> the cause of the trip. And if you want help, you need to provide the entire alarm message, not a poor paraphrase. You need to...

Please paste this URL (without any spaces) into your web browser to get the information you seek. http://www.control.com/thread/1307511427#1307543493

>Is it possible to open gcv, srv at a time when machine is in s/d or off mode?< Yes. One valve at a time.

The title of this thread asks about the nominal horsepower of [a] gas turbine. Then in the body of the thread it asks for nominal, part load and minimum <b>performance</b> of a gas turbine. No where in the original thread does the original poster state what the gas turbine is being used...

I would also be remiss if I didn't mention that while you're in ToolboxST you can use the Help - Distributed I/O Help - PPRO (or even the FINE Mark VIe System Guide, GEH-6721, Vol. II, PPRO section) to look up Stale Speed Detection, and get an excellent description of the function. Much better...