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So, a lot of "new" information.... If a unit has incomplete combustion as you suggest then there will be LOTS of white smoke coming from the exhaust and there will likely be high exhaust temperature spreads and flickering flame detectors. I have never been able to find anyone who could...

Do you have the manual? Is this for the 505 or the 505E? Here's a link to a 505 manual: http://www.dsf-technologies.com/upload/proddocspdf/proddocspdf_2_397.pdf The Woodward manuals are pretty decent, but like all governor manufacturers' manuals there are some typographical errors...

Well, it's very difficult to precisely correlate the two graphs because the scaling is different and the data points are not the same on the two graphs. The 'Start-Up Conditions Abnormal - Trip' is an alarm I've never seen before. What does the application code that drives this trip do...

http://wiki.answers.com/Q/What_is_a_steam_turbine_diaphragm...

> If the oil leak starts as the machine is loaded, then it's definitely caused by something amiss with the Cooling and Sealing Air System, or with excessive pressure in the Accessory Gear Box. < The above comment should have been more specific. CPD increases as the unit is loaded. And that...

Why can't you tell us exactly what Process Alarm is annunciated at the instant that L4T picks up and L4 drops out? How hard is that? That should be the first thing to be investigated--the Process Alarm that indicates the precise reason why the unit tripped. I no longer have a copy of Toolbox...

If the generator rating is lower than that of the prime mover, then there should be some kind of load limiting function to prevent the prime mover from putting out more torque than the generator can convert into amps. When current flows in a conductor, heat is generated. The ability of the...

dinster, You seem to be saying there are multiple pressure switches, all sensing a high pressure when the solenoid 20VG-2 is energized. You say the solenoid valve operation is "smooth". Is it blocked somehow? The installations I've seen use small solenoid valves and small tubing for the...

Do you have the instruction manual for the device? Are there any instructions in the manual about verifying calibration/output? These are usually very difficult to calibrate without a lab set-up which can flow air of a known humidity over the sensor. I believe the best way is to send...

A liquid level detector is for detecting any liquid in the generator casing. There shouldn't be any liquid in the generator casing under normal operating conditions. Sources of liquid could be leaking hydrogen coolers and excessive seal oil flows. Please find the Generator Hydrogen...

That's the Accessory Gear Box. If the oil leak starts as the machine is loaded, then it's definitely caused by something amiss with the Cooling and Sealing Air System, or with excessive pressure in the Accessory Gear Box. You <b>DID NOT</b> indicate you had reviewed the L.O. System Piping...

I have never seen an Auxiliary gear box. Accessory Gear Box. Load Gear Box. Reduction Gear Box. But never an Auxiliary Gear Box. And, when did this problem start? After some maintenance outage? What is the Lube Oil supply pressure to the gear box? Does this problem occur when the...

As the saying goes, "I could tell you; but then I'd have to kill you." In other words, it's proprietary to GE's DLN (Dry Low NOx) combustion system. There are a couple of "knobs" depending on the type of DLN system; some older systems used to have valves between combustors. Most of it has to...

Combustion dynamics refers to the combustion process inside the combustion "can" and "liner". When fuel is burned, there is a pressure increase, and depending on the design of the combustor, the fuel nozzles, the liner, etc., the combustion process can be smooth or it can be subject to pressure...

So, you started this thread. What questions do you want to ask about "rungs" and the Control Sequence Program? Have you read the information about the CSP in Appendix C in the Mark V Application Manual, GEH-6195?

Granite Services Int'l., Inc.? It's my understanding that if you purchase PROMs from GE they are now providing a batch file that "automatically" updates the PROM configuration files and provides instructions on how to do the I/O Configuration upgrade. I say "automatically" because I don't...

A hogger is a term someone somewhere thought would be a good description for a large air ejector that can be used to "bring up" (establish) vacuum on a condenser when little or no steam is being condensed, such as during start-up of a steam turbine. Once steam actually starts condensing the...

Dottey, You likely found this site using one of many Internet search engines. This site has it's own 'Search' feature, cleverly hidden on the right side of the band across the top of every page. There is a question mark (?) in a circle to the right of the search term entry box; best to...

Djafer, Do you know how we can spot someone who has just found this forum? He's the one that asks about 8 questions in the first couple of days; that's how. I see in this post you are an Instrument & Control Engineer. Well, Engineers know how to go to manuals and find drawings and...

>>I am an Instrument. Yes; you are. This is going to be short, as it's believed this has been described before on control.com. And, it's not going to go into a great deal of detail as it's presumed you're familiar with PCs and directory structures and executables and batch files, etc...