Search results

Diaa, As our Friendly Moderator says, in one form or another this topic has been covered many times before on control.com. You can use the Search term:<pre> +"synchronous generator"</pre>as your first attempt at finding information you may be looking for. Not knowing anything about your...

Alexandre Wipliez, MODBUS really has many different versions, and when MODBUS comes up in my work I usually have to ask how is it being used in this particular application (usage). And, to my mind there are really two basic uses of MODBUS: one is to allow different control systems to exchange...

There's also the DOS command <pre> fc</pre>If you can't find another program/application, fc can always be used to compare two ASCII text files. If there are few differences, it's a very fast method of comparison.

At the risk of starting a brouhaha if I understand your description correctly, you are correct and the method you are proposing follows most accepted practices for shield drain wire termination. However, some plants and sites have their own practices and methods, and in the end the Customer...

jhonweslybangun, TC2KREPT.TXT is not required by the Mark V for operation--nor can it be downloaded to the Mark V. (IO.ASG is used by the programs that create UNITDATA.DAT, which is the "Global Data Dictionary File," whatever that is--something "left over" from the GE SMART (and) REMOTE days...

There used to be a file comparison program called BeyondCompare, and it was very useful in finding differences between files--and easy to use. I don't know if it's still available. Some ASCII text editor programs that coders (programmers) use can also do file comparisons. UltraEdit is one...

Has100, I was going to refer you to the Mark V Application Manual, GEH-6195, Chapter 8, but after rereading the chapter I realize it doesn't explicitly tell a person how to identify a spare I/O point. But, there is still a lot of really good information about the process. In IO.ASG, if the...

topcat123, This Diagnostic Alarm has been annunciated since 2011? ;-) I don't know of anything else to try. Short of replacing the DCC/SDCC, because if the Diagnostic Alarm can't be reset--either from the operator interface or from the LCC/SLCC keypad, then downloading would be the next...

dontknowman, I've never experienced it myself. What have you experienced? Does the machine trip? F-class turbines have protective sequencing to reduce the risk of damage caused by sudden changes in compressor discharge pressure--which would likely happen when surging/stalling occurred...

topcat123, I believe the Mark V Maintenance Manual, GEH-5980, has information on the various options of the EEPROM Downloader. You can use the EEPROM Downloader to view and compare check-sums, I believe. Or, just type:<pre> EEPROM /?</pre>or<pre> EEPROM HELP</pre> for a quick explanation...

dontknowman, Yes. Today's heavy duty gas turbines could produce more power than they currently do (I'm referring to non-F-class machines)--but the ability of the axial compressor to push more air through the machine is the limiting factor. For a long time, the limit was hot gas path materials...

nosoutros, GE-design heavy duty gas turbines supplied with hydro-cooled generators that were packaged by GE USA <b>ALWAYS</b> had generic procedures for purging, charging and operating the generators. Those procedures should be the basis for any commissioning activity and plant-specific...

Seeker1998, The bearing material commonly used in GE-design heavy duty gas turbines melts at approximately 200 deg F. Heat from wheelspaces will heat the shaft and that heat will be transmitted to the bearings. That's why it's critical to keep L.O. flowing to the bearings when the...

gokhan_eee, Can you please be more specific about the equipment at your site and what it is you might be considering replacing it with? Why do you think your synchroscope needs to changed? A synchroscope is really only a visual means of observing the relationship between the frequency...

Mohan12111990, Thank YOU for the feedback!

How is this topic even remotely related to controls?

Mohan12111990, As for why the speed doesn't change when the unit is <b>synchronized</b> and the torque being applied to the generator from the Pelton turbines at your site, the answer is in the word "synchronization." When generators (and their prime movers) are connected to each other on a...

www.wikipedia.org is a great resource for information on how things work. I'm going to quote a couple of articles from this really good website; the first is from 'Electric motor: "An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse...

Seeker1988, This topic has been covered many times before on control.com. You can try using the search terms: +cooldown +"hydraulic ratchet" +"ratchet trouble" and other combinations. Very briefly, with GE-design heavy duty gas turbines one has about 20-30 minutes to get the...

Mohan12111990 Can we agree that motors convert electric current into torque--motors drive pumps and compressors and elevators and conveyors and such. (By the way, the largest use for electric power is pumping water--fresh water; grey water; sewage water; etc.)--and electric motors drive...