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Hello, Have you multiple sets of data relating increased compressor discharge temperature to fouled compressor conditions, or is this just a one-time occurrence? I have never successfully related CDT to compressor fouling over time. It seems at times to be a good indicator, but it doesn't...

Mohamed Salem, The thinking for this "problem" is all over the map. You opened this thread asking for a procedure to calibrate the LFBV, and you were told the LFBV doesn't require calibration if it doesn't have LVDTs. Then you said you needed to verify the behaviour of the LFBV but you needed...

It would certainly appear there is some leak somewhere that is not allowing the pressure to build up to actuate 63HR-1. I don't have access to the logic or the piping schematics for this type of ratchet, so the questions aren't as focused as I'd like them to be. I do recall that with the...

As suspected. A review of this poster's other questions shows he provides virtually no feedback.

You haven't provided enough information for us to be of much help. How do you know the "blower" is not working properly? Do you know that the mist separator elements are clean and functioning properly? It's not likely that the "blower" has failed, because they are usually centrifugal...

What exactly do you mean by "demolition"? Do you mean a procedure for removing the old control system? How to disconnect it from the plant wiring, and then how to remove it from it's physical location? Do you mean what to do with the old control system after it's been disconnected and...

It would be best if you looked at the block in the Speedtronic that calculates the various arrays to understand how it's done. The individual exhaust T/Cs are sorted into an "array" TTXD1_nn, which is basically exactly the same as the individual inputs, TTXD_nn. Then, the block creates two...

Are you getting confused because in the first sentence you state you are asking about what happens when two machines (generators with their prime movers) are paralleled together, separate from the grid, and then you talk about being "...at a site..."? And is that unit (or are those unites)...

When did this problem start? What has the packager/provider of the control system had to say about the problem?

james, You haven't given us enough information about the combustion turbine(s) and control system(s) at your site. This topic has been covered many times on control.com as regards, GE-design heavy duty gas turbines and Speedtronic turbine control systems. You will find a 'Search' function...

Congratulations! You mentioned you need to check "...the behaivior of the valve to confirm that it is working properly..." Will this procedure give you the information you seek? Were you able to control the valve position? Could you stop the valve at any position? The LFBV is a valve...

> The exciter would be installed by GE. The engineering and the installation will be done by GE. And, they will probably use discrete I/O to perform the "communication" between the Mark V and the EX2100e. And the HMI will most likely communicate with the EX2100e via Ethernet. So, you'll...

You're going to connect an EX2100e to your gas turbines without GE's assistance? Or one of their packagers? What does GE (or their packager) say? I think you need to do some more investigation on communication methods for GE equipment.

You need to obtain a copy of GER-3620. It details all the considerations which need to be evaluated in the decision to conduct preventive maintenance of GE-design heavy duty gas turbines.

ProComm Plus was a command-line (DOS) program used for serial communications. Most PCs these days use the MS-Windows operating system, and it is supplied with HyperTerminal. Follow the instructions in HyperTerminal to set if for the proper communications parameters per the Mark IV Maintenance...

When did this problem start? What have you done to try to resolve the problem? What were the results of the efforts to try to resolve the problem? When is the last time the generator seals were inspected and/or replaced? Has(Have) the seal oil flow rate(s) increased recently...

Mellberg, It's a characteristic of the heat switches that are used. GE typically supplied Fenwal heat switches, and again, the rate of rise characteristic is not adjustable. It's a characteristic of the switch, and it's why special testers should be used. I'm sure that EU restrictions have...

I believe if you look at the spec's in the System Guide for the various Mark VIe controllers (UCCx and UCSx) you will see they have CompactFlash memory as well as some internal memory (DRAM, which is probably volatile), and Flash-backed SRAM. It's this last type that has me wondering.... For...

>What toolbox version u are using? +1 I was wondering the same thing.... Is the originator using the same version of Toolbox as was used to download the software to the Mark VI? As far as I know, the application code (and product code) are downloaded to non-volatile RAM on the UCVx...

Ir you are referring to switches used for detecting the presence of a fire, these are usually very special switches. They not only trip on magnitude, they will also actuate when the rate of temperature rise exceeds the setting of the switch (and this particular setting is not usually adjustable...