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Badr, Severely bent Ethernet cables will definitely adversely affect communications; GE put out a TIL (Technical Information Letter) to that effect. It doesn't cause heat, but puts a mechanical strain on the RJ-45 connectors--both on the cable and in the switch receptacle. (I've often...

Were the proper filters (same micron/flow-rating) used to replace the operating filters? There are a LOT of vendors saying their filters meet the OEM spec, but ask them what that spec is and they can't tell you. They just say, "It's a good as the OEM's--but it's less expensive." And the people...

Daniel, I'm not sure I understand the nature of your enquiry. This is an old thread, and I disagree with most of Namatmangan08's assessment and reasoning. <b><i>In general,</b></i>a generator-set synchronized with other generator-sets on a large or infinite grid has no control of it's...

Ravivarma1910, It would be really helpful if you could tell us which turbine control system is being used on your GE-design Frame 5 heavy duty gas turbine (and if it's SIMPLEX, DUAL, or TMR). I also want to clarify a few things in your post. Some diesel starting means (NOT ALL diesel...

AHM, <i>Based on the information provided</i> it's impossible to say what happened at that day versus other days. The Process Alarm you listed seems to be a new one.... The GE Belfort Bunch (who have responsibility for the GE Frame 9E design and control and protection) infrequently and...

Genersi, There are two advertisers here on control.com which sell surplus and refurbished Mark IV parts: World of Controls, and Gas Turbine Controls. You can use your preferred World Wide Web search engine to find the website and contact information for both of them. Best of luck--and do...

Hmmm.... Yes, there's a danger in connecting power generation, transmission and distribution equipment to the Internet. It's certainly food for thought.... The Industrial Internet of Things and P<b>R</b>EDIX is just a way to keep you locked into the OEM for service and support. And, it allows...

cheedee, Thanks very much for the feedback! The .hmb file is used to configure the HMI--primarily for CIMPLICITY. It has nothing to do with the hardware jumpers on the TBAI card. And, again--the HMI has nothing to do with control or protection. Yes, the HMI can be used to configure a...

ELVIN APONTE, Thanks for the feedback! Signals don't have to be in a .ASG file to be used in the CSP. Many signals are in the UNITDATA.TPL file as they are commonly used in many applications. You should only find I/O-related signals--and, of course, EX2000-related signals (just to be...

Hi, The general rule for accumulator pressure is approximately 50% of the pressure of the operating fluid. You should be able to find the pressure specification on the Device Summary drawing, or possibly the P&ID for the Heavy Fuel Forwarding System.

What Process Alarms were annunciated when the gas supply pressure was falling, and during the auto shutdown? As for any consequences of the abort of the shutdown by issuing a START after supply pressure was restored--that's the exact proper response and action to take to abort (cancel) the...

ELVIN APONTE, While the same exciter may be used for both gas- and steam turbines, when dealing with GE there are two different divisions which decide how to apply the exciter and how to control it--even using the same turbine control (Mark V). A former colleague at GE was fond of saying when...

Dani_p, Welcome to the industry! Power generation, and the world of gas turbines is very exciting and filled with opportunities for someone with an inquisitive mind and ambition. There are two types of water injection: that used for NOx emissions reduction (the most common type of water...

It's really not safe to open the SRV with gas pressure upstream of the SRV. If there is any leak of the GCV, then fuel can get into the combustors and exhaust. There is no way to set a P2 pressure reference for the SRV when manually positioning the SRV, so the fuel flowing into the interstate...

cheedee, If the value being shown on the CIMPLICITY display on the HMI is incorrect, but the unit is starting and running properly (meaning the P2 pressure--the pressure between the SRV and GCV--is correct), then the problem is not with the Mark VI. It is with the configuration of the HMI or...

Isulamu, I don't know how you compare the CHECKSUM of the EEPROM partitions to the .AP1 files.... I have used the EEPROM partition file data/time and size information from the EEPROM DIR output to compare against the .AP1 file date/time and size, and found that useful. (I'm referring to the...

niazbibiyana, So, eccentricity is not so critical for gas turbines as it is for steam turbines. Why, you ask? Well, most gas turbines only have three stages of the turbine section, where most steam turbines have many more stages. Steam turbines, when they have eccentricity, can rub and cause...

Again, the Mark* controllers, themselves, don't speak OPC. They only communicate to GE HMIs over the StageLink (Mark V) and UDH (Mark VI/VIe). And the HMIs generally have OPC capability. (Early Mark V operator interfaces used a proprietary operating system, called IDOS, and did not use...

Yes; GE bought Xinhua and "inherited" the OC4000--and the people who designed and produced it. They would be the best people to ask if the OC4000 supports OPC. Have you consulted any of the OC4000 manuals?

hany5757, In my experience, I have never encountered a gas turbine which has experienced a compartment fire which was detected by the fire detection system and resulted in a turbine trip and the discharge of extinguishing agent. Usually, there is so much air moving through a compartment (or...