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MWO, There are a couple of different versions of FSRMIN and the "programming" used to control both start-up and shutdown. But you are on the right track. Sort of. One of the things that happens is if acceleration is too fast during/after fire/warm-up then when warm-up is complete FSR will...

Fyzal, If I recall correctly some Frame 9E machines also had a strainer/separator underneath the forward end of the axial compressor, which had isolation valves which could "accidentally" (though there's really no such an occurrence as an accident) left in the wrong positions. But, again...

Fyzal, How long was "smoke" seen coming from the vent pipe? Is there any idea how long smoke had been coming out of the vent pipe and when it started? "Smoke" coming from the #2 Brg. vent pipe is not a good indication. It was most likely caused by oil overheating because of a lack of...

Djafer, Likely Cause: Excitation regulator went to "minimum" on the GT that went to -20.6 MVAr. Likely Reason: Problem with Generator PT (Potential Transformer) feedback, or if the unit was operating in VAr or Power Factor control, a problem with the VAr transducer input. Please write...

If the hydraulic is left in place to keep the IGVs open and the turbine trips and the IGVs can't close that could cause axial compressor damage. Please write back to let us know what you ultimately find!

Mike Borrelli, It would seem you have a GE Mark V HMI (running MS-Windows and CIMPLICITY). The Diagnostic Alarms are "coded" with respect to which processor they are associated with, and I don't recall the "key" to the code. I think it's something like dividing the Drop Number by 2048 or 4096...

For some reason, the Mark V is seeing a difference that exceeds a preset (and undocumented) limit between the two inputs. If you are measuring the inputs with a True AC RMS voltmeter and are seeing 0.35 VAC difference between the two LVDT inputs to Reg (SVO-Servo-valve Output) 5, then it's...

Ki_ran_r, GE sets the failure mode for the thermocouples in the PROMs on the cards that handle thermocouple inputs. The failure mode is NOT configurable in most Speedtronic turbine control panels. What you see in the I/O Configurator is what you can change. Having said that, there is...

Elvin Aponte, It would seem we don't have all the information. The only cause I've ever seen for a 'Bad Agent ID' error message is the wrong PROMsets on SDCC. Did you check all of the hardware (Berg) jumpers on the SDCCs to make sure the <D> you put in <R> had all the jumpers set to...

It's not possible to take a working <B> SDCC and substitute it for a working <Q> SDCC. (<B> means either <C> or <D>; <Q> stands for <R> in a SIMPLEX panel, or <R>, <S> and <T> in a TMR panel.) The PROMsets are not compatible. If you want to take the SDCC from <D> you will need to remove the...

Hector C, There is a saying in the power generation industry: "Lagging VArs feed a Lagging load." (This is from the generator's perspective.) The effect of VArs on any AC electrical power system is to shift the voltage and current sine waves out of phase with each other. Left unchecked...

David McC, The Mark V TCPS power supply cards and TCEAs require 125 VDC, and cannot be powered by AC. The TCPD has a couple of connectors that can be used to send AC to one or two <DACA> modules that convert AC to DC. The cables interconnecting the <PD> to the <DACA>(s) carry both the AC...

> As a side note, I must have passed my interview questions. I'm back in the automation business starting Tuesday. Heartiest Congratulations, cww!!!

GM, If the unit is not under some kind of warranty, you are free to do whatever you want to do--provided you or the person(s) you work for want to take responsibility for any consequences. I'm not clear exactly what the problem is that makes you (or the person(s) you work for) want to...

ESKAY, This is information which was not provided in the original post. If you changed the configuration for the VSVO card, did you download the new configuration to the VSVO? While the turbine was running? Because the configuration change was not effective unless the change was...

This thread is getting off track. Trip Oil is used on STOP valves, not generally on control valves. Trip Oil does what its name implies: Trips (very quickly shuts off) the Stop valve, thereby preventing steam flowing into the turbine. Control valves are not generally used as stop valves...

Rain louvers are certainly an option, but one has to ask: How long has the site been having this problem of fluctuating inlet filter dp? Since initial commissioning? Has the weather pattern changed in the last couple of years? Has a different filter supplier been used for this set of...

GJA, Very good explanation and recommendations. Would you please estimate how many bad new proximity probes, extension cables and proximitors you have discovered using the procedures you outlined? (Presuming the components were properly matched.) Because, in my experience prior to B-N...

G.Rajesh. There should be an alarm switch and at least one shutdown switch (which are set slightly higher than the alarm). If the dp is allowed to continue to climb then the Speedtronic should initiate a shutdown (some actually trip the turbine; most just a shutdown). The risks involved...

Dave, Yes; this has been dealt with before on this site, though there hasn't always been "agreement" on terminology and underlying physics/facts. Which shouldn't seem possible, but, then man doesn't really know what "electricity" is! Is it a mass with a charge, or a charge with a mass? But we...