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Power Generation
Topic: Power generation equipment control.
from the Electrical department...
Isolated Generator and Droop Governor
Originally posted by gshan on 28 May, 2013 - 6:54 am
Can an isolated generator use droop governor?

New Replies:
Manoj Dubey, Hmmm..... Seems someone didn't like my response. Let's assume the turbine was...
Sir, The answer to the question: Would the generator set (prime mover and generator) trip on...
Sir, from above explanation I have understood that steam or fuel inlet will be constant to...
Topic: Power generation equipment control.
from the Power Generation department...
Getting a better understanding of GT control PART 3
Originally posted by Neo on 28 August, 2014 - 10:48 am
Getting a better understanding of GT control PART 3
New Replies:
CSA: We have dealt with L14HSX before,and it is an aux signal to L14HS. It will keep logic 1...
Neo, L3SFLT
  XVCMIR0S01_A   XVCMIS0S01_A  L14HSX    L94X      ...
   L3SFLT    L86GCVT   L86FPG2LT   L4PSTX4
 ------|/|-------|/|------|/|--------(...
Neo, Thanks for breaking up this thread again. As for not reading signals literally, well,...
Topic: Power generation equipment control.
from the Electrical Engineer department...
parallel operation of generator
Originally posted by Sagar on 28 August, 2014 - 11:48 am
We are having 18MW captive power plant to fulfill requirement of power and steam in company.
New Replies:
Sagar, All the generator prime movers do NOT need to be running in the fixed load setpoint. And,...
Because of the vibration in the turbine we have to restrict the load on the TG set. The total...
Sagar, Hmmmm....My understanding of the definition of a captive power plant is one that is...
Topic: Power generation equipment control.
from the Mark VIe Governor department...
Mark VIe Governor control
Originally posted by N.V.Q on 28 August, 2014 - 2:49 am
What are the basics of governor control?
New Replies:
N.V.Q, You say you're accustomed to reading SAMA diagrams; everyone, at some point in their...
Thank you very much for your answer. I am checking now the Turbine control logic software...
N.V.Q, I would also recommend looking at the manuals provided with the turbine (not the Mark VIe...
> N.V.Q, > Please work with GE There are non OEM training companies that do a good job,...
N.V.Q, Please work with GE to get this information. We have discussed this, basically, in the...
Topic: Power generation equipment control.
from the Power Generation department...
Getting a better understanding of GT control PART 2
Originally posted by Neo on 11 July, 2014 - 10:48 pm
Getting a better understanding of GT control PART 2.
New Replies:
CSA: I opened a new thread for this one is a little long and disorganized. ...
Neo, This thread is getting very long--and very disorganized.... ...
CSA I am back, and waiting for your reply:) best regards! Neo...
Neo, Are you back?...
Originally posted by Bill Futch on 12 August, 2014 - 4:08 pm
Starting motor does not cutout when a normal shutdown is given below 60% speed.
New Replies:
Bill Futch, I second everything MIKEVI said; it's not necessary to ramp fuel down before...
Bill, s orry for the long delay in answering, I do not have a good excuse for you. So your...
Our units have air cooled generators but we do not have a ratchet assembly for slow roll or break...
So Bill here are my suggestions and thoughts on your issue. Some further clarification would be...
Originally posted by Ali on 20 August, 2014 - 7:30 am
Advantages of isochronous load sharing over iso-droop mode configuration of three generators.
New Replies:
Thanks alot CSA. A great help. Very well explained....
Hello, It all really depends on the capabilities of the governors. Some don't operate so well in...
Topic: Power generation equipment control.
from the Forum department...
9FA Gas Turbine Water Injection
Originally posted by Mahmoud Alshimy on 24 August, 2014 - 5:16 am
Water injection service varies greatly for GE gas turbine loads.
New Replies:
Mahmoud Alshimy, You are 110% correct. I don't understand your query. If water injection is...
CSA, Let me first tell you that I have a mechanical background not I&C. But let me redraft...
Mahmoud Alshimy, Water injection is usually scheduled (calculated) as a function of fuel...
Topic: Engineering and workplace issues.
from the Operation support team department...
Generators and leading power factor
Originally posted by Bhagwan on 11 September, 2009 - 8:15 am
Leading power factor for backup generators
New Replies:
Our dear CAM, Somehow I forgot to include that electricity is one method of transferring torque...
Our dear CAM, Electric motors are driven by electric generators. Electric motors are devices...
my dear gentlemen, may i ask question, what makes prime mover burden itself? is it current,...
Topic: Power generation equipment control.
from the Power Station department...
Efficiency of ac generators
Originally posted by UNGKU KAMAL on 7 March, 2013 - 1:12 pm
When using ac generators in Power Stations, what are the advantages of using " Flux Cutting " types, compared to using " Magnetic Induction " types.
New Replies:
Bert Wank, Great--all of it. But it seems to address Lorentz Force Motors,...
> Since you seem so well-steeped in Lorentz Law, why don't you explain it to us, and tell us...
Topic: Power generation equipment control.
from the Forum department...
GE Mark VI/VIe HMI and Software Questions
Originally posted by Kevin on 8 July, 2014 - 8:17 pm
Specific questions about Mark VI and VIe.
New Replies:
Hello, CSA covered a lot of ground, I'll just fill in a few gaps and correct a few details. I...
Topic: Power generation equipment control.
from the Mechanical department...
Exit Guide vanes of Gas Turbines
Originally posted by Izhar on 19 July, 2014 - 4:24 pm
Gas turbine exit guide vanes and how to use them
New Replies:
Hello There, Izhar, you did not mentioned about the blade tip clearances. Any increase in it...
Hello There, Dear Izhar, terribly sorry to hear about such a loss! However, thanks for such a...
Thanks for the feedbacks here is my response. Background: Combustion Inspection of Gas Turbine...
Originally posted by . on 18 August, 2014 - 4:41 am
What is the position for Mark 4 HSAA card jumper when we want to perform calibration?
New Replies:
All, >> Berg jumper settings for R, S, T computers: > REF2 - Set to "1" to...
> Berg jumper settings for R, S, T computers: REF2 - Set to "1" to calibrate FB...
Originally posted by bilo7 on 24 August, 2014 - 12:30 pm
trip 9e generator open breaker when underexcitation
New Replies:
bilo7, When a GE-design heavy duty gas turbine equipped with a Speedtronic ("Mark")...
Topic: Power generation equipment control.
from the I&C department...
Teleperm XP, Retrofit
Originally posted by By Byte on 15 March, 2013 - 1:51 pm
experience with retrofitting of Teleperm XP controlling Siemens V94.2 GT.
New Replies:
Did you upgrade your control system? which control system it is? How much it cost and any...
Topic: Power generation equipment control.
from the Operation department...
Oil injector in Turbine Oil System
Originally posted by Mani Singh on 22 August, 2014 - 6:53 am
Function of Oil Injector in Turbine Oil System
New Replies:
The shaft driven oil pump requires a positive suction pressure (i.e. it cannot suck oil from the...
Topic: Power generation equipment control.
from the Mechanical department...
Steam Turbine Gear Box
Originally posted by Rangacharya on 14 August, 2014 - 2:29 am
15 MW Steam turbine gear box has high vibration at 3 to 4 MW load. What is the probable reason for this phenomenon?
New Replies:
I want to know whether your generator is air cooled or gas cooled....
Topic: Power generation equipment control.
from the operations department...
Loss of Cooling Water to Steam Turbine Condenser
Originally posted by sriram sandep on 12 August, 2014 - 7:13 pm
What will happen in special circumstances when there is a loss of Cooling water supply to the condenser
New Replies:
What I understood from the conversation that when the machine trips on cooling water not available...
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