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suryapower/sriram, By the way--both of my responses refer to GE-design hydrogen-cooled generators provided with heavy duty gas turbines and combined cycle steam turbines. (Actually, the principles apply to just about any hydrogen-cooled generator which uses oil as the sealing medium on the...

suryapower, Welcome to the discussion; it's a friendly one. I'm presuming the Hydrogen Control Panel still uses manually-adjusted needle valves for the scavenging function--and that Seal Oil is supplied from the Lube Oil reservoir. Finally, it's presumed the hydrogen purity sensors are...

sriram, Testing can be done in all kinds of ways. Certain factors can be presumed to remain constant during the test, and other factors can be corrected for (ambient temperature, for example). It all depends on the length of the test and the number of variables to be "accounted" for during...

Cedbont, Do you have actionable data showing the actual, running part load efficiency of the plant versus the Base Load efficiency of the plant? We would be very interested to hear how much lower the efficiency of your machine is at Part Load versus Base Load, and how much water you believe...

Since you're not a newbie to the automation field you would most likely benefit from a training course by learning the new system's nomenclature, configuration and programming basics. If the new companies you are considering applying to are in different industries than you are currently in, you...

niazbibiyana, Your questions are best directed to GE for the most proper and concise answers. As the manufacturer and supplier they are in the best position to clarify any questions and resolve any issues.

Mattw78, By "...get[ting] alarms in that are on that module." do you mean Process Alarms related to the inputs to the module? Or Diagnostic Alarms related to the inputs to the module? I don't have access to a Mark VIe System Guide at this writing; what is Diag. Alarm 285? And what have you...

Look up "passive speed pick-up" or "passive speed sensor" using your preferred Internet search engine--because that's what GE uses for sensing the speed of the rotating toothed wheel(s) of a liquid fuel flow divider. Flow divider internals (bearings; etc.) can become worn over time and become...

RodyCho, I'm only going to address one possible benefit. Depending on your previous experience with DCS systems and programming and application, a little training could go a long way--unless this is so different from what you've been doing that it's not applicable. But, if you can program...

Really? Someone gave an Unhelpful vote for thanking the original poster for providing feedback on the problem resolution? Really??? That's just sad; really sad. <b>Moderator's Note:</b> I'm hoping they selected the wrong thumb by accident.

buvan, The cooling gas in the generator should be dry, to protect the windings from moisture being circulated in the cooling gas. Sources of moisture can include leaky hydrogen coolers and excess moisture entrained in the Seal Oil (along with entrained air--the air can be humid, especially...

waiphyo, Thank you for the feedback!

Cedbont, It would be very interesting know how the plant operating mission has changed since construction/commissioning. The thermal efficiency of aeroderivative gas turbines isn't really the reason one buys/operates them. Some LM6000s were sold as 40-40 machines--40 MW at 40$ efficiency, but...

Diaa, What area of electrical engineering did you study in university? (Electrical engineering can encompass many aspects of electricity, and I'm wondering if you studied anything about electrical power generation--and to what extent the courses prepared you for the work you currently find...

Hmmm, Hmmmm, ...., TIC 01 is not a device name I'm familiar with, but if it's pneumatically-operated then I presume it has an I/P positioner of some sort which implies it has some kind of input (RTD; T/C; 4-20 mA) and some kind of feedback (RTD; T/C; 4-20). It's not clear if the device is...

waiphyo, There is most likely something wrong with your measurement method. Please review the electrical schematic drawings provided with the generator and the relaying and metering equipment (in particular, the potential (voltage) transformers) and be sure you can measure all three phases of...

WATT, During synchronization it's customary to make the frequency of the incoming generator be just slightly higher than the frequency of the grid the incoming generator is being synchronized to. This is so that when the generator breaker is closed positive power will be produced by the...

The Mark V will not issue a 'Ready to Start' indication (which means it won't accept a START command) unless all the processors are healthy and communicating. <b>I >>DO NOT<< recommend doing this</b>, but if the unit MUST be started for power and/or steam, some adventurous and gambling people...

You're going to have to provide some detailed information about the "failure" of the GE HMI Server (what failed), and what was done involving the "re-install" (was it done from a known good image of a working GE HMI Server created using the image utility provided by GE (usually Acronis); or was...

topcat123, While the EEPROM chip can be moved from one DCC card to another, since that was the "source" of the original alarm I would recommend not doing so. The new DCC should come with a blank EEPROM, but I would first recommendingX setting the hardware jumpers on the new to the same...