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Control.com topic...
Power Generation
Topic: Power generation equipment control.
from the Mechanical department...
Modes of Turbine
Originally posted by eurydice on 24 December, 2009 - 12:28 am
Mark V control of turbines
New Replies:
Hmm, That again bring me closer to the object... Thanks a lot to CSA and Rajesh.. Now the...
To answer your question.. Isochronous control is different which tries to achieve target speed all...
When in parallel with other generators and their prime movers on a grid, regardless of whether the...
Okay, that solved a lot of other problems i was facing but i still have the same doubt that does...
Just a quick comment on constant settable droop: If the DWATT signal is from a single...
It has been told in previous threads that some early Mark V systems used this very simple...
Topic: Power generation equipment control.
from the Operation department...
Oil mist on Frame 9E
Originally posted by MAN on 5 January, 2010 - 2:58 am
When Frame 9E has low load has smoke from oil mist, high load no oil mist
New Replies:
Our frame 6B's oil mist eliminator initially had issues. The adjusting spring was in question. We...
Well now, that wasn't a very good response was it? Sorry about that. If the vacuum (negative...
How long has this problem been noted? Did it begin after a maintenance outage? Did it begin after...
Topic: Power generation equipment control.
from the Engineering department...
Frequency RPM in Turboalternator
Originally posted by Ravi on 5 January, 2010 - 7:31 am
Setting frequency of DCS and alternator
New Replies:
Are you asking for the typical engineering units used for frequency and RPM? Frequency is...
Thanks for your information. I can change easily to arrive the correct engineering unit. I am...
Congratulations on your 50 Hz, four-pole, 20 MW turbo-alternator. Have you asked this question...
Topic: Power generation equipment control.
from the Electrical department...
Dimension of HT cable
Posted by rab on 6 January, 2010 - 12:51 am
Dimension of Cu cable to transmit 37 MW at 66 kV
Topic: Power generation equipment control.
from the Operation department...
Gas turbine exhaust
Posted by Paragkumar on 5 January, 2010 - 4:07 pm
Covert GT exhaust emmissions from PPM to Kg/KWH or tons
Topic: Engineering and workplace issues.
from the gas turbine 9fa/dln2+ department...
96GN-1/2/3 transmitters
Originally posted by vinuram on 27 December, 2009 - 2:07 pm
purpose of 96GN-1/2/3 transmitters in GE 9FA DLN2+ machine?
New Replies:
These are actually differential pressure transmitters, and one of the functions they normally...
in device summary, it is mentioned as "gas fuel nozzle pressure transmitter". as per...
I was hoping someone else would respond to this one. Are you having some problems with these...
Topic: Power generation equipment control.
from the engineering department...
alternator synchronizing
Originally posted by wartsila on 2 January, 2010 - 1:58 am
i want to know about alternator synchronizing.
New Replies:
Oh, there are bells and buzzers going off in my head. How many times has this DG set been...
Topic: Power generation equipment control.
from the Mechanical department...
Regular Shutdown of Frame-6 GT
Originally posted by Pirate on 30 December, 2009 - 4:16 am
What problems may arise from regular shutdown and start of Gas turbine?
New Replies:
I agree with all that CSA has mentioned except the last sentence, well actually the context it was...
After foreign object damage, the biggest "enemy" of combustion turbines is thermal...
Topic: Power generation equipment control.
from the Forum department...
Upgrading from Mark-4 to Mark 6e
Originally posted by BV on 22 December, 2009 - 5:47 pm
Upgrading mark-4 control system. Does anybody have guidance on downloading the Mark IV software backup?
New Replies:
Sorry for the Error......... We upgraded Mark-4 to Mark-6e ...
Probably this is not required. GE will have all the required Data for your existing...
Topic: Power generation equipment control.
from the Forum department...
Neutral Switch in 415V Generating System
Posted by azman on 29 December, 2009 - 6:20 am
what will happen if my neutral switch/contactor suddenly open circuit? contactor coil faulty during synchronising and at peak loads.
Topic: Power generation equipment control.
from the Power department...
Reactive power and its affect
Originally posted by Heni on 25 December, 2009 - 6:29 am
What is the problem if our small power plant (600MW) receive MVAR from the grid.
New Replies:
I KNEW IT! I KNEW YOU WERE USING TAP CHANGERS TO CONTROL VAr FLOW! You...
Thank you MR phil, It's right. but for your information in our power plant, we monitor only...
Good day, Kindly check the capability curve of your generator and you can judge on this issue. ...
Better day, For starters, I wouldn't necessarily consider a 600 MW power plant small. There's...
Topic: Power generation equipment control.
from the Process department...
Atomizing Air Compressor discharge Pressure
Originally posted by Denice Thomas on 19 December, 2009 - 4:30 pm
Why is atomizing air compressor discharge pressure maintained at around 1.2 times compressor discharge pressure
New Replies:
sorry, i think Mr CSA when i write brief i think get my Question exactly. Thank You for your All...
Maint, Maint, Maint, Your posts tend to be short and one line, regardless of the thread. You...
Topic: Power generation equipment control.
from the Control Instrumentation department...
Bleed valve pipeline modification
Originally posted by nanang on 24 March, 2009 - 7:25 am
What could be the consideration if we change the pipeline of bleed valve on gas turbine frame 9 ??
New Replies:
Dear Maint, you some times have a problem during loading. You didn't tell us if the...
Dear CSA, we have some times during loading open one bleed valve....
during shut down try to test the actuators bleed valve by giving air pressure through solenoid...
Topic: Power generation equipment control.
from the Electrical department...
R and H for a large Grid as of a state Grid
Originally posted by eurydice on 11 December, 2009 - 5:02 am
How to find out the H and R for a state Electricity Board Grid
New Replies:
Responding to Eurydice's 11-Dec-09 (05:02) query... Do you mean the Inertia Constant, H (stored...
Topic: Power generation equipment control.
from the Power operation department...
Generator Protection
Originally posted by heni on 25 December, 2009 - 5:21 am
Maximum reactive power of a generator 120Mega watt
New Replies:
Heni... the value 75MVAr or 90MVAr is meaningless unless you include the corresponding MW. ...
Thank you so much for this, I believe on this....
Thanks a lot for you, That's correct but according to my capability curve the max MVR is 75...
Look at the reactive capability curves for your generator. If you go outside those limits, you can...
Originally posted by Krish on 21 December, 2009 - 10:45 am
The inter-winding as well as individual winding capacitances of single phase transformers in a 3-ph delta / star connected transformer bank is not similar. Will it be ok for trouble free power generation?
New Replies:
Krish... An analysis of the Table you provided showing the test results of six component...
Krish.. a perfect case of "catching the mice, and allowing the elephants to go free!" ...
Thanks a lot Phil... I am giving some more information for your quantitative analysis. a)...
OK, Gentelmen that's Excellent brainstorming I believe it so much. Thank you...
Krish, further to my 25-Dec-09 (13:21) post... I should have said measure capacitance, when...
Krish, analysis thus far: o Voltage Unbalance. Data derived from PT readings shows Ph-Ph VUF is...
Topic: Continuous process industries, DCS questions.
from the control and instrumentation department...
flame scanner
Originally posted by danesh simmry on 11 December, 2009 - 12:18 pm
we have bottom fired boiler and in every boiler 2 scanner is installed.
the furnace oil are snagged in the orifice head and also in the head of the scanner. so the scanner wont be able to work for a long time.
New Replies:
Hi danesh, I believe u have a balanced draft boiler. Try decreasing the furnace setting...
Topic: Engineering and workplace issues.
from the Operation department...
Modified Wobbie Index
Originally posted by Paragkumar on 24 December, 2009 - 2:19 am
Will changes in fuel gas specific gravity and fuel gas temperature harm combustion hardware?
New Replies:
I am just becoming familiar with the effects of varying Wobbe indices on turbine operation and...
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