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Amr1589, This thread was started regarding GE-design Frame 5 heavy duty gas turbines. Your past posts have been regarding GE-design Frame 9FA heavy duty gas turbines. There are some pretty large differences in the materials and construction of the two types of machines, and as has been said...

Please use your preferred World Wide Web search engine to research "power triangle."

Anthony63 It's been a LONG time since I've done this, but here goes...! From the file you sent, it appears there are only three remaining spare accumulators (timers; counters)--the ones with LFALSE in the second column. So, you need to choose one of those (let's choose the first one from...

When did this problem start? What happened before this problem started? Did someone make some change(s) to the project file(s), or try to compress the EGD pages? Or make some changes to a CIMPLICITY display? Because these problems don't just start all by themselves--there is ALWAYS some...

Dear Sir, Diagnostic Alarms indicate problems with the Mark VIe turbine control system hardware and/or software. In Vol. II of the Mark VIe System Guide, GEH-6721, you will find explanations of the Diagnostic Alarms. For example, if the PDIO is annunciating Diagnostic Alarm Number 96...

Seeker1988, I'll answer the last question first. Excrement only flows downhill; unless a pump is used to get it to flow uphill. That's true for any situation where there needs to be flow--flow only occurs from an area of higher pressure to an area of lower pressure. Always. On planet earth...

Engineer Teresa [email protected], The lowest concentrations are always in the bearing seal drain enlargement areas since air entrained in the seal oil is the source of air in the generator (including the casing, and a problem there usually predates a problem in the casing. Scavenging is...

Seeker1988, Thanks <b>VERY MUCH</b> for the feedback!

Dear Sir, If the unit is operating in Isochronous speed control, then what's likely happening is that after synchronization the Mark VIe is making Droop speed control track load changes, so that should the unit be synchronized while running with a large or infinite grid the unit will switch...

Dear Sir, Diagnostic Alarms indicate problems with the Mark VIe turbine control system hardware and/or software. In Vol. II of the Mark VIe System Guide, GEH-6721, you will find explanations of the Diagnostic Alarms. For example, if the PDIO is annunciating Diagnostic Alarm Number 96 (just an...

Sir, A torque converter is a hydraulic pump and hydraulic motor in the same housing. In this case, they use turbine L.O. as the hydraulic fluid. The hydraulic pump is driven by the starting means (electric motor; diesel engine; expander turbine). The reason for using a torque converter is...

Topcat123, I vaguely recall the jumpers. And I think they were just "mini" banana plugs, which, as you say, were capable of having another banana plugged into the top ("stackable")? Have you checked some place on-line like RS Electronics or Newark Electronics? I think the US-based...

Isulamu, You're welcome, but, I'm not clear what other information you might need. The OEM decides what the IGV angles should be for the protection of the axial compressor during start-up and shutdown. Is there some problem with the operation of the IGVs or the machine? Is there some...

Sanjay029m, The reasons for moving to the Independent Gas Control Valve (IGCV) configuration were two-fold: standardization, and a move to get away from the combined SRV/GCV assemblies. The OEM wanted to have a gas valve configuration that could be used for DLN-I, DLN 2, DLN 2.6, etc--and the...

Inst_KY, Is there something "new technology" about the hydrogen seals that would cause the required seal oil flow rate to be less than previously (when the seals were in new and clean condition)? Because, a lot of times when questions like this get asked it's learned that some new, improved...

Compressor washing frequency, on-line or off-line, is entirely dependent on the types of ambient contaminants present in the air ingested into the axial compressor inlet. Some site have very little dust and airborne contaminants and low humidity; these sites generally require very infrequent...

Bkarim55, >Hydraulic power is defined as flow multiplied by pressure >(Power = Q x P). Both pressure and flow should be adjusted. In most cases, hydraulic system pressure is to be maintained at a constant value, so power is primarily equal to flow. Presuming pressure is 5 to be maintained...

Isulamu, Axial compressors are unique machines, unlike centrifugal or reciprocating compressors. As such, they have unique operating characteristics. One of them is that during starting and shutdown (during acceleration and deceleration) as air is being pushed along from stage to stage...

Ahmed, The typical cause for these positive displacement, axial piston pumps with built-in pressure compensators is that the hydraulic system pressure was set using the relief valve instead of using the pump's pressure compensator. The relief valve setting (per the Device Summary) is to be...

TomasEduardo, Your statement, "...although I read many questions from Engineers that seem so obvious...." is very telling and reveals you have not experienced the wide disparity in operations which exists even in the Americas, and to a larger extent around the world. With the exception of...