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Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
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-- Disraeli
-- Disraeli
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Operating the Turbine Generator on Preselected Load
New Replies:
What causes the distrubances? Frequency excursions? Fuel supply disruptions? Dirty oil?
...
why the voltage transformers are open delta connected in a GE design
New Replies:
By Phil Corso on 4 November, 2009 - 9:29 am -
Serpil981... the PTs should not be disconnected.
Only the NGR is disconnected for the...
Thanks for your answers the second part of the initial answer was the reply to an old post so don't...
In base load trial on part load.all the parameter is normal during part load except GCV opening is sluggish. now problem is that when base load trial is taken MW hunting start.
what is the range of insulation resistance value expected for 132 KV COPPER POWER CABLE?
New Replies:
By Phil Corso on 3 November, 2009 - 10:20 pm -
If you are sure of its age, then please answer the following:
o What is the installation? In...
Need for an help to choose the best fieldbus in a Generating Power Plant
New Replies:
By James Powell on 3 November, 2009 - 1:19 pm -
Dear Fabrizio,
For comparing FF and PROFIBUS, there is a good white paper on...
use the spare inputs in DTBA or DTBB
New Replies:
I would like to thank you very much and I will write you what is happening to me in the reply may...
You're not 'canceling' any inputs. You will be relocating (moving) them to unused inputs.
For...
We have one unit controlled by two computers and the IDOS— Computer operating system. I found the...
The Mark V Maintenance Manual, GEH-5980, has a section on assigning spare I/O points. It's not...
Speed measuring of a turbine using magnetic pickups. Can we use one magnetic pickup to feed two devices (controller and speed indicator)while both use pickup signal(no 4-20 mA)
from the Electrical operation department...
Difference between overvoltage and over excitation protection given to generatorI am working in CPP with 750 MW power generation capacity. There are 6 gas turbine generators. Generators have both overvoltage and overexcitation protection...
New Replies:
By Parma on 3 November, 2009 - 12:43 am -
We use 61 or 24 as the ANSI number for Over excitation. As such ANSI have kept some numbers free...
Is there a way to call or set variables in the PID_ISA block from cimplicity like the Integral or Proportion ?
New Replies:
Yes, you can access the registers of the PID_ISA from CIMPLICITY to tune the block. You'll need to...
from the Forum department...
What certifications are required for GE 24MW Frame 5 turbine driven generator maintenance work?Is certification done on particular models of generator?
New Replies:
And who was making the inquiry? The corporate lawyer? A vendor trying to sell services? A concerned...
GE part numbers for MarkVIe control system
New Replies:
GE, being the capitalist institution they are, provide a Recommended Spare Parts List for every...
abb 800xA Communication problems
New Replies:
By PChandra on 1 November, 2009 - 9:13 am -
Hi,
i Have gone thr such a situation more than 10 times. but your problem is not clear to me.
u...
By Mohanad Babekir on 31 October, 2009 - 8:24 am -
Hi guys;
We running power plant with 800xA system, the plant consist of 6 engines, the problem 2...
Load sharing of 2x10MW Steam turbines
Generator syncing issues, MVAR spike, voltage mismatch at sync
New Replies:
I apologize for occupying everyone's time on this issue, and I appreciate all information and...
By jojo on 22 October, 2009 - 1:21 am -
Brwtx,
Now you have given another piece of valuable information, your plant is destroying a...
What are the probable causes of a high compressor inlet pressure.
New Replies:
The positive calibration setting was the confusing issue as we have poor documentation and...
Jack, it is my thought that these switches are installed to measure inlet differential pressure...
I believe you'll find these are actually differential pressure switches, and they are monitoring...
Some questions -
1. Please check if these are 63CS series switches or otherwise
2. what are these...
Spurious GCV LVDT readings on opening panel door
New Replies:
Thanks for the feedback!
...
For future reference the fault has been found and was on the Analog input/output module board...
erecting 400kv transmission line
New Replies:
By ananymous on 27 October, 2009 - 1:20 am -
Dear,
Although all this information is available on internet as well as in your Basic Electrical...
The resistive part of grid impedance at the 240 volts residential level.
Coolant (Glycol) contamination with engine oil
New Replies:
By suresh on 24 October, 2009 - 6:06 am -
Dear Sir,
We have one DG set with coolant diluted with engine oil & we need the actual...
By Brian Beal on 22 October, 2009 - 11:17 pm -
I am not a chemist, but oil and water (or glycol) don't mix well. Glycol make a poor lubricant. ...
we are planning to overhaul a present GE-MS5002D type turbine , but we don not have the overhaul up dated manual to go through
New Replies:
By Dennis on 23 October, 2009 - 2:47 pm -
the link you have provided has expired, could you kindly repost.
>Check this one.
>
...
Leading power factor for backup generators
determining the size of the DC circuit breaker between the charge controller and the batteries
New Replies:
The charge controller rating is 60Amp charging a 48VDC system batteries. What will be the rating of...
By curt wuollet on 21 October, 2009 - 8:13 pm -
The charge controller rating would be a good place to start.
Regards,
cww
...
ALSPA P320 Documentation are required.
New Replies:
Please send me documentation for ALSPA P320 system
my email: vileo-kh[at] yandex [dot] ru
...
Generating electricity from rain
New Replies:
Hi Roryboy,
I doubt you make the same kind of money as GE. This is still a possible part of an...
A computer virus caused serious problems recently for an Australian electric utility.
New Replies:
By M Griffin on 21 October, 2009 - 4:36 pm -
In reply to Yeasir Rahul: That would work, and it would have prevented the virus problem the...
Could someone explain whether variable speed with a single-shaft gas turbine is permitted while the generator is producing power?
New Replies:
The only difference between a motor and a generator is whether the device is producing torque from...
What is the formula for FSRT calculation in MARK IV?
New Replies:
I've been trying to come up with a response to this question and I don't know exactly how to...
How to change operation between motor, and generator?
New Replies:
Conceptually, if you are applying torque to the motor in the same direction as the velocity, you...
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