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Control.com member...
Member Information and Posts by CSA
Topic: Sensor technologies.
from the Thermocouple department...
Thermocouple cable configuration
Originally posted by Shrk on 4 April, 2014 - 7:28 am
Choosing thermocouple cable configuration- twisted pair or coaxial (multi cored)
New Replies:
Shrk, www.omega.com is a very good resource for all kinds of sensors, particularly RTDs and...
Topic: Power generation equipment control.
from the Forum department...
Windmill Alternator
Originally posted by Karsten Rasmussen on 11 April, 2014 - 3:04 pm
Control of windmill alternator load
New Replies:
Karsten Rasmussen, I think it's going to be pretty difficult to control the speed of a wind mill...
Originally posted by Neo on 11 April, 2014 - 10:08 am
Increase in reactive power drawl at generation source.
New Replies:
Neo, I have read and re-read this post several times the past couple of days--mostly hoping...
Topic: Power generation equipment control.
from the Maintenance department...
Mark V TMR servo commands
Originally posted by Brian on 12 April, 2014 - 9:35 pm
Difference in servo command in TMR panel for second stage nozzle
New Replies:
Brian, When did this problem start? After a servo-valve was replaced? This is not a simple...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Instrumentation cables sizing
Originally posted by Ahmed Sami on 10 April, 2014 - 7:57 am
Instrumentation cables sizing
New Replies:
Ahmed Sami, Choosing wire/cable for a particular application is a very involved process. Does...
Topic: Power generation equipment control.
from the control systems department...
Meaning of the "smiley symbol" in MARK V csp file
Originally posted by mhkhan on 11 April, 2014 - 10:58 am
In the csp file of MARK V control system, can any body tell me what the "smiley symbol" means in the BBL logics?
New Replies:
mhkhan, It's presumed you're referring SPECIFICALLY to the CSP.PRN file. It means EXACTLY...
Topic: Power generation equipment control.
from the powerplant department...
Atomizing Pressure
Originally posted by ABDI on 20 March, 2014 - 7:03 am
When unit starts we always have low atomizing pressure alarm
New Replies:
ABDI, I haven't read GER-4189, so I can't comment on the specifics of the document. But I...
ABDI, There is a low-point drain in the atomizing air piping--both the inlet piping to the...
ABDI, Hmmmm,..... Well,..... You seem to be saying that the turbine (without telling us what...
Topic: Power generation equipment control.
from the Control&Automation department...
Preselected mode for Mark V
Originally posted by Abbernardo on 3 April, 2014 - 4:49 pm
PreSelected mode when connected to grid and Mark V trip
New Replies:
MIKEVI, Yes, there is some time delay between when Pre-Selected Load Control (or External Load...
Abbernardo. The work om the transmission system should not affect the load on the unit--unless...
K.R.Manish, If you receive a dispatch to operate at, say 25 MW on a 40 MW machine, you can use...
Dear Abbernardo, Pre-selected Load Control is a very poor mode to operate a GE-design heavy duty...
Topic: Engineering and workplace issues.
from the Engineering department...
Deriving RMS from Vibration Transmiter
Originally posted by shakarami on 6 April, 2014 - 10:03 am
How we can drive the rms vibration from Peak
New Replies:
Ali Shakarami, Using my preferred Internet search engine and the search term: "convert...
Topic: Power generation equipment control.
from the Total department...
Mark VIe Bleed Valves
Originally posted by KADDOURI on 6 April, 2014 - 3:16 pm
Bleed valves open at full speed no load.
New Replies:
KADDOURI, The axial compressor bleed valves are not, technically, part of the Mark VIe turbine...
Topic: Power generation equipment control.
from the Takoradi Thermal Power station-ghana department...
Rotational direction of GE F9001e Turbine
Originally posted by Theophilus tetteh Ahia on 27 March, 2014 - 3:57 am
what are the main reasons for GE F9001e turbines running in the anti-clockwise direction when view in the direction of air flow
New Replies:
Theophilus Tetteh Ahia, Things that make one go, "Hmmmmmm." Designers have to make...
Topic: Motion control, servos, steppers, etc.
from the Custom Cabling department...
Making extension for Molex P4 connector
Originally posted by flizit on 7 March, 2014 - 3:10 pm
Need to extend supplied cables that connect Adjustable Height Table legs to Controller Box.
New Replies:
flizit, Excellent news! ...
flizit, Caution is always good. And usually healthy, too. According to the data sheet, the...
flizit, Based on the information you provided both would appear to be adequate. My only concerns...
If all you need are extension cables, then can you just buy a male- and female end for each cable...
Originally posted by Cluelessone on 31 March, 2014 - 6:23 am
25MW load rejection
New Replies:
The Subject of this thread is regarding the effect on TA from breaker opening under power, but TA...
Topic: Sensor technologies.
from the Instrument department...
ABB Thermocouple Transmitter reading fluctuates
Originally posted by msalem73 on 29 March, 2014 - 6:42 am
Transmitters reading Fluctuating
New Replies:
Okay, You answered some of the questions. Have you checked the thermocouples in the stack to...
msalem73, David asks MANY good questions. But perhaps the best question is: When did this...
Topic: Power generation equipment control.
from the Engineering department...
Changing the Turbine Fuel Composition
Originally posted by Ali Shakarami on 30 March, 2014 - 7:13 am
use fuel gas with composition different from composition that issues by GE
New Replies:
Ali Shakarami, You should have a heat content value (LHV) for the new fuel that you can compare...
Topic: Power generation equipment control.
from the Forum department...
Mark V Voter Mismatch
Originally posted by Ron on 10 September, 2013 - 12:46 pm
Voter mismatch alarms on a 7EA Mark V system.
New Replies:
smd123, Thanks for the feedback!...
Topic: Power generation equipment control.
from the Starting device tripped department...
Gas turbine starting device trip generated
Originally posted by V K GUPTA on 23 March, 2014 - 12:49 am
Our machine got tripped on alarm "starting device tripped". Machine was achieved speed 14HM level and waiting for 14HA.
New Replies:
Mr. Gupta, You did not tell us what kind of starting means is used to purge and help accelerate...
Topic: Power generation equipment control.
from the Forum department...
Export logic - toolbox
Originally posted by Pierre on 21 March, 2014 - 10:14 am
Export data from rung in a excel sheet
New Replies:
Pierre, Have you looked in the Toolbox 'Help' function? Have you clicked on the File Menu...
Topic: Continuous process industries, DCS questions.
from the Forum department...
GE Mark V Frame 6 Machine - IVG angle
Originally posted by Arun on 15 March, 2014 - 3:33 am
Why IGV angle why not TTRF1?
New Replies:
Arun/Johnplayers, Once, again, you are welcome. Well, let's see. The primary purpose of IBH...
Arun, Axial compressors are very unique pieces of equipment and have their own unique operating...
Because the purpose of IBH on GE-design heavy duty Frame 6B turbines (not F-class; B-class) is to...
Topic: Power generation equipment control.
from the mechanical department...
Frame 6 Racheting
Originally posted by arindam on 17 March, 2014 - 12:27 am
While commissioning of ratcheting mechanism, the jaw clutch got engaged, but is not able to rotate the shaft.
New Replies:
Arindam, First, the teeth of most jaw clutches are designed such that they are tapered and will...
Originally posted by Samnix on 17 March, 2014 - 1:18 pm
In an attempt to start a GE MS50001 turbine, the start command is not going through to the control system when it is clicked from the HMI.
New Replies:
Samnix, Have you tried using the <BOI> to initiate a start? (There are instructions in the...
Samnix, Have you used VIEW2 to see if L1START_CPB is changing from a logic "0" to a...
Topic: Power generation equipment control.
from the powerplant department...
Going to Premix Mode from Lean Mode
Originally posted by abdi on 2 December, 2013 - 11:37 pm
why premix not done in GE FRAME9
New Replies:
ABDI, The fundamentals of transferring from Lean-Lean to Premix are as follows: 1) Reduce the...
Topic: Power generation equipment control.
from the Forum department...
GE LM 6000 VBV position error
Originally posted by Liji on 11 March, 2014 - 12:08 am
VBV a, b position feedback difference of 8-10%
New Replies:
Liji, Thank you VERY MUCH for the detailed information. It would appear that the condition is...
Hmmm.... Have you tried swapping the two inputs and seeing if the difference is the same? Are...
Topic: Engineering and workplace issues.
from the Forum department...
Solar Cells breaker panel
Originally posted by ahmed shahat on 13 March, 2014 - 10:40 am
the control components of breaker panel
New Replies:
Guy, There are many different kinds of solar grid-tie panels; it depends on many factors. ...
Topic: Power generation equipment control.
from the instrumentation department...
Mark V HMI back up
Originally posted by shyam on 12 March, 2014 - 3:57 pm
Back up of the mark 5 control system using windowsNT based HMI?
New Replies:
I just remembered: Acronis was, at least until very recently, being used with great success by GE...
This can be very easy (depending on your familiarization with PKZip and command-line programs) or...
Topic: Power generation equipment control.
from the Forum department...
Import csv to toolboxst trend
Originally posted by said on 12 March, 2014 - 11:30 am
importing csv signals with data to toolboxst trend
New Replies:
said, It's possible to export ToolboxST trend data to .csv format, I believe via the File |...
Topic: Power generation equipment control.
from the Forum department...
HMI selectors identification
Originally posted by Amr Karam24 on 10 March, 2014 - 5:22 pm
identifing some selectors on the HMI
New Replies:
otised, I agree with everything you said--except this unit...
Amr Karam24, Without being able to review the application code running in the Mark VIe of the...
Amr Karam24, Hello, again. 1) You probably already know this, but SC likely stands for...
Originally posted by Controls_guy on 9 March, 2014 - 3:56 pm
Loading the gas turbine without after 95% speed.
New Replies:
Controls_guy, Sorry, but your explanation is not clear. Most non-black start GE-design heavy...
Controls_guy, Without closing any breaker? I don't think so. Having said...
Topic: Power generation equipment control.
from the Forum department...
DC lube oil pump
Originally posted by amr karam on 7 March, 2014 - 9:56 am
How to operate the DC lube oil pump and the hydraulic at the same time
New Replies:
amr karam, You're welcome. When I get unusual questions like this it's usually the result of one...
There seems to have been some kind of event that you are trying to understand.... If you would just...
Have a look at your L.O. and Hydraulic P&IDs and you should find that the hydraulic pump...
Topic: Power generation equipment control.
from the mark vi department...
secondary supply of mark vi
Originally posted by ppm on 6 March, 2014 - 12:46 pm
Regarding grounded and ungrounded secondary supplies in mark vi panel
New Replies:
ppm, No changes to the AC input(s) required. The DACAs convert the AC input (grounded or not) to...
Originally posted by Usman Khalid on 7 March, 2014 - 2:42 am
Can we reduce our load on GT if we can get more power from ST and keep our total required load same?
New Replies:
Usman Khalid, You are talking about such small (percentage) changes in load for the two...
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