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Control.com topic...
Power Generation
Topic: Engineering and workplace issues.
from the electrical engineering department...
% impedance of power transformer
Originally posted by ramesh on 5 August, 2008 - 1:12 am
Elaborate on % impedance of power transformer.
New Replies:
Hello Phil: Thank you for the speedy reply. I would like as much accuracy as possible from...
Hello Phil: Thank you for the speedy reply. I would like as much accuracy as possible from...
AT... OK! Let's start with basics: A) Given: kVA(L) = 800; PF(L) = 0.8; kV(L) =0.48; Xfmr's %...
Hello Phil: Yes, the loading information is not listed on the Xfmr's Nameplate. Yes, I am trying...
AT... I hope you don't mind my asking the following just to be sure about your query: 1) A...
Hello Phil: I have a question. I have a 1000kVA Delta-Wye transformer with 13.8kV/0.48kV, Z% =...
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:
shakarami, You should contact the gas turbine supplier (GE). I cannot tell you the impact. It is...
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!...
All, Just a quick reply to bring this matter to a conclusion: 1. FU4 was definitely blown....
Topic: Power generation equipment control.
from the Diesel Electric DP Vessels department...
Detection methods for AVR loss of sensing in weak networks
Originally posted by Yngve S on 18 March, 2014 - 3:12 pm
I am looking for ways to detect a loss of sensing voltage scenario on weak grids in offshore power systems installed in rigs and DP vessels
New Replies:
Hi Hanafy and thank you for your insightful response. Adjusting the AVR limiters would have been...
Hi Usually in AVR control algorithm, the voltage controller is cascaded with field current...
Topic: Power generation equipment control.
from the BFWP pressure high is high, isnt it? department...
BFWP (Boiler feedwater pump) pressure
Originally posted by mxromen on 12 March, 2011 - 9:30 am
why does is BFWP HP discharge is so high after feed water control valve
New Replies:
This is a common enough occurrence when you replace am existing old BFP with a new one. The new...
Can you explain to me a question: In my power plant, there are 2 BFP for 1 Unit and they are...
@J. Moszynski The first condition which you mentioned typically occurs during a boiler startup,...
By Rangarajan Desikachar on 24 March, 2014 - 8:15 am -
It seems BFWPs in power plants are always designed for considerably excess pressure to cater for...
Topic: Sensor technologies.
from the I&C department...
ATEX Ex ic or ATEX Ex nA ?
Originally posted by Daniel on 12 March, 2014 - 11:21 pm
ATEX Ex ic or ATEX Ex nA ?
New Replies:
Hi, Normally from technical point of view it is required unification of solution. So if you use...
Topic: Power generation equipment control.
from the Takoradi Thermal Power station-ghana department...
Rotational direction of GE F9001e Turbine
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
Originally posted by Ayman Elsebaii on 27 May, 2013 - 3:34 pm
Problem of high exhaust temperature in frame V Gas Turbine
New Replies:
This thread is old i wonder has the original poster found what went wrong? I am thinking the...
I agree with Samy there. This is a gradual unloading shutdown of the gas turbine & not a trip...
Hi there, Perhaps you can clarify the followings :- 1. Was it a spark or fire-ball came out...
Topic: Power generation equipment control.
from the Electrical department...
Fault level ISc
Originally posted by Shaheed on 17 March, 2014 - 2:01 am
I was selecting a main incomer VCB for a turbo generator TG of 16000KW. I proposed VCB of 31.5KA but an expert calculated fault level total 23.62KA and advised to select VCB of 25KA.
New Replies:
Sir, Phil corso, I am grateful for your valued information and guidance. Regards, Shaheed...
Shaheed... further to my post on grounding. Ground-Fault level has little to do with 3-phase...
Shaheed... Expert's calc'n shows the Grid contribution as 14.4kA! Which of the Swgr cubicles...
Shaheed... correction to earlier post: The busbar, its joints, insulators, and bus-stubs, must...
Shaheed... regarding you ground-fault concerns; what are the parameters of the selected NGT or...
Shaheed... your size-calc of the GTG's VCB Isc is based on your presumption that the Gen's...
Sir, I beg your pardon, frankly speaking, the question is like admkhan. The actual scenario is!...
Shaheed... one question; What is Rated Short-Circuit Interrupting and Closing-Duty of the...
Sir, Thank you for reply. I had emailed you the expert provided sheet but not received you!...
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 Industrial project department...
Saving Energery while Increasing Power Factor
Originally posted by sajeev12 on 23 March, 2014 - 11:28 am
Industrial project on to save energy while increasing the power factor
New Replies:
Dear all, You mean that the power factor in the auxiliary equipment dropped to 0.747? In the...
Topic: Power generation equipment control.
from the Instrument & Control department...
Loop Powdered Inductive Sensor Voltage and Current Fluctuation
Originally posted by I&C Engineer_Evil Genius on 20 March, 2014 - 2:47 pm
Inductive Sensor voltage as well as current starts fluctuating very frequently (from 5mA to 19mA / DC voltage 6VDC to 24VDC)
New Replies:
Is this a new installation or something that used to work? These types of NAMUR sensors usually...
> We have 2-wire loop powered (24VDC/4~20mA) inductive sensor installed > on Steam Turbine...
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: 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, Hmmmm,..... Well,..... You seem to be saying that the turbine (without telling us what...
Topic: Engineering and workplace issues.
from the Modeling 3-winding xfo on EasyPower department...
3 winding transfromer model
Originally posted by Lespoils on 19 March, 2014 - 10:20 am
Need help finding R1 X1 R0 X0 from Z=X% and need help finding Zst on a 3-winding xfo.
New Replies:
Lespoils... if there is the possibility you can get secondary and tertiary loads about equal,...
Lespoils... stop hitting you head against a brick wall! You said it yourself... "Maybe I'm...
Topic: Power generation equipment control.
from the ABB Advant department...
ABB OS500 upgrade
Originally posted by Will P. on 5 March, 2014 - 5:46 pm
ABB OS500 upgrade to newer version HP B2600
New Replies:
Will, you are correct that the extensions program only backs up the ABB station settings,...
Topic: Power generation equipment control.
from the Forum department...
Mark V Ribbon cables
Posted by Pashka on 20 March, 2014 - 5:39 am
Exactly length of Mark V ribbon cables
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:
Thank you very much for your response, I will do all of these things and get back to you on the...
Originally posted by Jack on 18 March, 2014 - 8:46 pm
Ground Fault Current Path for Multiple Sources
New Replies:
Jacků the Drawing you submitted is a generalized illustration of a 3-ph, 4-wire, LV (< 1,000V)...
Topic: Power generation equipment control.
from the Forum department...
Changing Careers looking for advice
Originally posted by surya on 10 February, 2014 - 6:28 am
Please give me some guidelines that i am changing my careers from mechanical stream to instrumentation
New Replies:
Hi CSA, Noted with thanks :)...
Originally posted by Arun on 18 March, 2014 - 2:05 pm
Regarding Purge Air Compressor/IBH/TK fan change over
New Replies:
> A Frame 6 DLN2 Dual Fuel is a rare beast. Can you confirm this is correct? > Is this a 6B...
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