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Control.com member...
Member Information and Posts by CSA
Topic: Power generation equipment control.
from the Operations department...
GE MS-6Fa Operations
Originally posted by Jotang84 on 22 October, 2014 - 8:10 pm
How does generator control modes (Voltage,PF and Var) works and affects generator operations.
New Replies:
Jotang84, If VAr control mode is selected and a VAr setpoint is entered the Speedtronic will...
Topic: Power generation equipment control.
from the Instrumentation department...
Mark V A6 state
Originally posted by G.Rajesh on 22 October, 2014 - 12:33 pm
Mark V <C> at A6 state after modify and download IO.ASS and IOCFG
New Replies:
G.Rajesh, Long time no hear from you; welcome back. I believe markvguy wrote replies to...
Topic: Power generation equipment control.
from the I&C department...
Westinghouse W251B11 wet compression
Originally posted by Napster225 on 16 October, 2014 - 7:55 am
Power augmentation by direct wet compression on W251B11 gas turbines
New Replies:
Ahem, > This technology is widely being used in today's combined-cycle and co-gen GT >...
Topic: Power generation equipment control.
from the Power Generation department...
Gas Turbine control - Hardware Part Trip of L4
Originally posted by Neo on 19 October, 2014 - 8:02 am
When Hardware causes the trip of L4
New Replies:
neo, Welcome back; I've been a little busy, also, so it hasn't been a problem. So, I'm taking...
Topic: Power generation equipment control.
from the Instrumentation and control department...
Steam Turbine MSV/GV Servo Valve
Originally posted by zouhen on 16 October, 2014 - 12:44 am
Turbine MSV Main stop valve and GV governing servo valve were damaged and lose functionality in the same period.
New Replies:
Thanks for the feedback!...
Lube oil quality, or, rather, the lack thereof, is usually the cause of most electro-hydraulic...
Topic: Power generation equipment control.
from the Forum department...
Changing SRV Valve setting
Originally posted by 8784597 on 16 October, 2014 - 4:28 pm
I need help to change the set point for SRV open position.
New Replies:
8784597, The SRV tries to control the pressure between the SRV and the GCV. To know if it's...
Topic: Power generation equipment control.
from the Forum department...
Speed of Synchronous Generator
Originally posted by Muhammad Salman on 26 February, 2010 - 4:08 pm
Why Speed of Synchronous Generator decrease with increasing speed?
New Replies:
Saudaslam, It seems I don't have the answer to your question. Perhaps another contributor to...
Saudaslam, Good, seemingly simple, question; extremely difficult to answer because it depends on...
Topic: Power generation equipment control.
from the Instrumentation and control department...
How to Calibrate the Gas Turbine Vibration Sensors
Originally posted by Any on 13 October, 2014 - 6:29 am
How to calibrate the vibration sensors after removing them before major gas turbine overhaul
New Replies:
> The new word is VERFIFY. CuriousOne, You said a mouthful! ;-)...
Any, To verify the accuracy of the calibration of any sensor one needs to know how the sensor...
Topic: Power generation equipment control.
from the MAINTENANCE DEPARTMENT department...
Second Stage Nozzle Control Failure
Originally posted by WAC on 15 October, 2014 - 6:43 am
Having nozzle control problem after replacing
New Replies:
WAC, What Diagnostic Alarms are being annunciated? The reference for the second-stage nozzle...
Topic: Power generation equipment control.
from the Instrumentation department...
Startup Gas Turbine
Originally posted by GE mark vi on 4 October, 2014 - 6:24 am
Is there is any provision for startup gas turbine with external pushbutton (aux.PB)
New Replies:
All, Just to clarify--the Speedtronic (Mark VI in this thread, per the original poster)...
Yes, that is possible. ...
Topic: Power generation equipment control.
from the Combustion Dynamics - Tuning department...
9FA and DLN 2.6+ Combustors
Originally posted by Jim Crown on 13 October, 2014 - 12:12 pm
Looking for information about dual fuel service for DLN combustors
New Replies:
Jim Crown, Good morning to you, also. I've heard of people attempting this at high load (at...
Topic: Power generation equipment control.
from the DCS control department...
DCS Control of Power Plants
Originally posted by George on 8 October, 2014 - 10:24 pm
Scope of DCS programming in a Power Plant
New Replies:
George, I think many of us would take exception at some of your statements about testing before...
> The original definition was "Distributed Control System! Chill,...
Roy, > How come they always like to centralize it? This one's easy--DCS stands for: ...
George, I don't understand what you're trying to describe at all; sorry. One company might be in...
George, I agree with Kevin that it's totally possible these days, and was more difficult even...
Topic: Power generation equipment control.
from the control department...
Rotating 65fp Fuel Servo
Originally posted by mohanad on 11 October, 2014 - 7:59 am
Problem with liquid fuel valve opening while unit is running on gas fuel
New Replies:
mohanad, When did this problem start? After the liquid fuel pump servo-valve was changed? ...
Topic: Application Questions and Problems
from the Right way to do this? department...
Pump Running Indication on Control Circuit
Originally posted by Stumped on 10 October, 2014 - 4:19 pm
How can I properly wire my pump panel to show that when the pump is actually running I get an indicator on my PLC/HMI.
New Replies:
A pressure switch could be used in series with the aux contact to indicate the pump is producing...
Topic: Power generation equipment control.
from the Forum department...
Tubing and Piping
Originally posted by Gary on 9 October, 2014 - 2:28 pm
Any differences about the size standard for piping and Tubing?
New Replies:
Gary, I used my preferred Internet search engine with the following search term: "what...
Topic: Power generation equipment control.
from the Forum department...
Reverse Power Problems
Originally posted by Martin Crummy on 8 October, 2014 - 3:08 pm
Reverse power of Engine 1 when syncing in MSB bus-tie
New Replies:
Martin, Thanks for clarifying if this has been an ongoing issue for some (since...
Martin Crummy, The first question to ask is: When did the problem start? Has this scheme worked...
Topic: Power generation equipment control.
from the Gas Turbine Controls department...
Gas Turbine First Fire
Originally posted by George on 7 October, 2014 - 6:49 am
Pre-startup activities and sequence for first fire of GT.
New Replies:
PLC Programmer, There's loop-checking; there's usually some kind of crank checks (spinning the...
George, First fire of a gas turbine generally means that you have already...
Topic: Engineering and workplace issues.
from the mechanical department...
Oil from Exciter
Originally posted by karim elrawy on 8 October, 2014 - 11:28 am
We have oil leaks from the exciter and we drained it but we don't know what this problem is
New Replies:
JFB, Yeah, sorry; I couldn't resist. I think the exciters you're talking about are Alterrex...
karim elrawy, Check the push-buttons; they require oil for smooth operation. Or, it's...
Topic: Power generation equipment control.
from the Mechanical department...
Initial Torque Required for Gas Turbine
Originally posted by Izhar on 2 September, 2014 - 5:21 am
How to calculate the initial torque required by gas turbine
New Replies:
izhar/Farhan, Thanks very much for the feedback! "Feedback is the most important...
Farhan, No; 309EGuy is not confusing this coupling jacking with jacking oil (bearing lift oil);...
Originally posted by humble3 on 8 October, 2014 - 10:17 am
Lately we discovered that in one of our frame 9 GT, the bearing header pressure gives different value for the different pumps
New Replies:
humble3, When did this problem start? After a maintenance outage? Suddenly? We presume you...
Topic: Power generation equipment control.
from the Forum department...
Synchronous Generator Voltage
Originally posted by Rudy on 12 February, 2013 - 11:50 am
AC generator voltage,excitation current, voltage drop and power flow
New Replies:
Hi, Semos, Congratulations on your project! (Sounds like a course assignment designed to make...
Originally posted by Simon on 25 September, 2014 - 4:21 am
Why do people who believe that the OEM is the best alternative for off-warranty service & retrofit contracts why?
New Replies:
John, Thanks for sharing your experiences and thoughts. I'd like to, again, play Devil's...
Simon, Great philosophical question, and I'm going to try to answer each of your points. >...
Topic: Power generation equipment control.
from the Forum department...
Auto-Synchronizing GE Frame 7EA
Originally posted by Bill on 3 October, 2014 - 12:04 am
What is auto-synch frequency window for GE Frame 7EA
New Replies:
Bill, You may have something with the synchronizer needing to make at least one adjustment to...
No; that doesn't seem like it would harm the unit. But, from the information provided it also...
Bill, I looked back and I see the control system is Emerson Ovation. ...
Bill, Hmmm. It's noted that you didn't mention what your new turbine control system was nor what...
Topic: Power generation equipment control.
from the Power Generation department...
When Will 88CR start?
Originally posted by Neo on 10 September, 2014 - 10:27 am
GT start up sequence, when will 88CR get started?
New Replies:
Neo, I would say, yes; open another thread for L4. As for the L14HT in L1X. What did the L1X...
Neo, Do you want to take this any further--the L14HT analysis? I got the impression, from this...
Neo, I believe L14HT will be a logic "1" when the shaft speed is above 8.4% speed...
Neo, Whoa! What about L14HT at your site?!?!?! How is L14HT used at your site? What are...
Neo, Is the unit experiencing problems during start-up? High exhaust temperatures? High exhaust...
Topic: Power generation equipment control.
from the mechanical department...
Flow Divider Problem in GE Frame 9e Turbine
Originally posted by karim elrawy on 30 September, 2014 - 1:05 pm
Looking for advice on maintaining flow divider in our GE frame 9e turbine
New Replies:
Karim Elrawy, Have you looked in the Maintenance Manuals provided with the turbine for the...
Topic: Power generation equipment control.
from the E& I department...
Governor Control in Speed Control Mode
Originally posted by Bhavin on 26 September, 2014 - 9:06 am
Islanding problem when grid trips. The case happens only 5 times out of 100, rest everything goes good.
New Replies:
Bhavin/BJM, If you're certain that the boiler can supply sufficient steam to maintain the...
Topic: Power generation equipment control.
from the IMD department...
Mark-VIe Servers
Originally posted by MJ on 27 September, 2014 - 3:58 am
Functions of Servers provided with Mark-VIe
New Replies:
Dear MJ, The PRIMARY difference between the two HMIs is that the Mark VIe...
Topic: Power generation equipment control.
from the E& I department...
Load Shading System
Originally posted by BJM on 26 September, 2014 - 9:13 am
Looking for detail knowledge on the Load shading system
New Replies:
Ah, the seldom-used and little-known practice of load shading. You'll probably have better luck...
Topic: Power generation equipment control.
from the Maintenance department...
Stability of Generators in Isochronous Mode
Originally posted by Erwin on 24 September, 2014 - 1:00 pm
Why are two or more engines (gen sets) in Isochronous mode without load sharing make the system unstable?
New Replies:
Erwin, 1) Yes. Load is equivalent to fuel flow-rate (for internal combustion engines; steam for...
Topic: Power generation equipment control.
from the Operations department...
9FA Gas Turbine Unloading Rate
Originally posted by Stephen Roche on 6 September, 2014 - 3:17 pm
GE 9FA unloading rate in auto stop sequence for multishaft unit.
New Replies:
Steve Roche, Great news! Thanks for the feedback!...
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