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Distillate fuel servo calibration
New Replies:
ESKAY,
I thought we'd been over this before....
http://www.control.com/thread/1336557419
...
ESKAY,
This idea of "calibrating servo-operated devices" on GE-design heavy duty gas...
How to change over Hydraulic oil filter in frame6B GE gas turbine, while the Gas turbine is in service.
New Replies:
Bob Johnston,
I have seen some non-GE packaged units which did not have transfer fill valves,...
FSR fuel reference - margin of FSR warm up
New Replies:
MWO,
I don't have a copy of Toolbox or a .m6b file for a gas turbine to review. To be specific,...
MWO,
Certainly a diesel starting means which is not being controlled correctly could be the cause...
MWO,
There are a couple of different versions of FSRMIN and the "programming" used to...
Mark VI IONet N-Tron Network switches keep on failing, RCA needed
New Replies:
Sagir,
Is it possible that the Rev. C switch failures have caused some problem(s) with the 28 VDC...
Low output after smoke coming out from the extraction pipe from bearing #2
New Replies:
Fyzal,
If this is a problem with some kind of L.O. leak in the #2 Brg. area (which is what I...
Fyzal,
If I recall correctly some Frame 9E machines also had a strainer/separator underneath the...
Fyzal,
How long was "smoke" seen coming from the vent pipe?
Is there any idea how...
MVAR suddenly dropped from 6.5 MVAR to -20.6 MVAR
New Replies:
Djafer,
Likely Cause:
Excitation regulator went to "minimum" on the GT that went to...
igv unable to attain 86 igv maximun angle is 62
New Replies:
If the hydraulic is left in place to keep the IGVs open and the turbine trips and the IGVs can't...
What causes diagnostic "LVDT position diffhigh REG#5"?
New Replies:
Mike Borrelli,
It would seem you have a GE Mark V HMI (running MS-Windows and CIMPLICITY). The...
For some reason, the Mark V is seeing a difference that exceeds a preset (and undocumented) limit...
How to detect & handling Thermocouple failed ckt in Mark V.
New Replies:
Ki_ran_r,
GE sets the failure mode for the thermocouples in the PROMs on the cards that handle...
On the LCC display on Core R on Mark-V control shows a message Bad Agente Id when I tried to change the ID on a DS200SDCC used on Core D before.
New Replies:
Elvin Aponte,
It would seem we don't have all the information.
The only cause I've ever seen...
It's not possible to take a working <B> SDCC and substitute it for a working <Q> SDCC....
What purpose do inductive VARs serve in an electrical grid?
New Replies:
Hector C,
There is a saying in the power generation industry:
"Lagging VArs feed a...
how to configure PD for AC power input?
New Replies:
David McC,
The Mark V TCPS power supply cards and TCEAs require 125 VDC, and cannot be powered...
what is the best way to answer
New Replies:
> As a side note, I must have passed my interview questions. I'm back in the automation business...
Why tripping given for steam turbine for trip oil
New Replies:
GM,
If the unit is not under some kind of warranty, you are free to do whatever you want to...
This thread is getting off track. Trip Oil is used on STOP valves, not generally on control...
Mk6b control status. status is showing minor difference.
New Replies:
ESKAY,
This is information which was not provided in the original post.
If you changed the...
Eskay,
Funny you should post this question today, as I have spent several hours by telephone and...
Air inlet greater than the alarm limit (180 mmH2O)
New Replies:
Rain louvers are certainly an option, but one has to ask: How long has the site been having this...
G.Rajesh.
There should be an alarm switch and at least one shutdown switch (which are set...
why vibration sensors output is adjusted for -10v for different sensitivity sensors?
New Replies:
GJA,
Very good explanation and recommendations.
Would you please estimate how many bad new...
gsh,
Almost every instrument (with the exception of RTDs and thermocouples) has a...
gsh,
There are vibrations sensors, and there are vibrations sensors. Specifically, there are...
Need some info on modeling AC generation.
New Replies:
Dave,
Yes; this has been dealt with before on this site, though there hasn't always been...
Dave,
Here's how I would explain your scenario, from a slightly different perspective. When a...
Hello, Dave,
(Wow--that was a deja vu moment! Like something out of '2001: A Space Odyssey.')
...
Fuel and Load Hunting after Full speed and massive with generator breaker closed
New Replies:
Ahmad,
One other very common cause of instability and hunting is liquid fuel supply pressure....
Ahmad,
I don't think you're going to find much experience here with Ovation control systems on...
Diffuser leakage
New Replies:
Searching,
Yes. Heat causes expansion, and expansion of a bearing housing can cause alignment...
Procedure for selection of gas turbine and steam turbine for a combined cycle power plant.
New Replies:
Suman,
The only question we can possibly answer based on the information provided is the one...
How to bring GT from Base load to Full speed no load manually??
New Replies:
sriram sandeep,
It would be done exactly as you describe. Unload the machine (manually or...
Why we need to kept GCB as a synchronisation breaker for gas turbine instead of using the line breaker as like steam turbine..
New Replies:
sriram sandeep,
Some sites synchronize the gas turbine generator across a breaker that is on the...
The lube oil filter on GE Frame 9FA machines only works when we are opening the 1/2" Filter drain valve.
New Replies:
Ashutosh,
You also have a P&ID of the lube oil system, which you can use to understand how...
Behavior of a power plant when its load rate (stag ms9001fa) drops.
New Replies:
Koukos,
There is a saying in the Western world: "Curiosity killed the cat." In other...
When we try to put the machine to turning we get the following trip "Starting means turbine shaft fail to break turbine away"
New Replies:
Controman makes an excellent point!
Be sure to check the lift or "jacking" oil pump...
Torque converters do wear out and do require refurbishment. If the site uses the cranking motor for...
Unit unable to maintain baseload control (droop) because of large grid swings (upto 51.8HZ on a nominal 50HZ grid system). Need a solution to keep unit stable when the grid frequency swings
New Replies:
I probably need to add to the explanation that in an AC machine (motor or generator) the magnetic...
GenSet_Expert,
The whole purpose of matching speed and phase angle is to make sure that when the...
Magnetism....
Reasons for oil floating in the bearing drain enlargement
New Replies:
When did this problem start? is always the first question that should be asked...
mark v module revision confirmation
New Replies:
Yes; "spares" have been known to be bad "out of the box" also (unfortunately).
...
How to adjust 96VC axial probe after a major outage?
New Replies:
Chandra,
I think I like JFBjr's approach the best, after giving it much consideration.
If...
Diagnostic Alarms in frame V machine in <R> core (L39VF12, L39VF8 and etc)
New Replies:
Hello, NVS,
The turbine is a Frame 5, and the control system is a Mark...
Why do we need to force L4_XTP during stroke checks of SRV/GCV?
New Replies:
G.Rajesh,
Thanks for the thumbs-up! It was difficult getting the "drawing" to scale...
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Ducharme's Axiom:
If you view your problem closely enough you will recognize
yourself as part of the problem.
