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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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-- Frank Zappa
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Help in finding the level on ammonia on a closed tank, using a Druck DPI 610
from the Control & Instrumentation department...
How to optimize the usage of Instruments Compressed Air for better plant efficiency
In some instrument or instrumentation design, compressed air is designed to bleed (release to atmosphere continuously). As it was designed in such manner, to maintain compressed air supply pressure is quite a challenge for long and continuous operation
what are the different ways to vary the load angle of an alternator?
What is the effect of under frequency in steam turbine & gas turbine especially in rotor blade & casing material vibration?
New Replies:
Hi,
Underfrequency i.e. underspeed protection, is a part of protection set-up for the turbines. ...
Nimeshe,
most generators are set-up to trip on underfrequency for generator protection. Since...
By Phil Corso on 5 August, 2009 - 12:18 pm -
Responding to Nimesh's 05-Aug-09 (0221) query:
Underfrequency, mostly for Load-Shedding...
GE Frame 5 limited below Rated Power
New Replies:
With miniscule details, it is very difficult to comment. Provide more details for a to-the-point...
Dear Colladjl, as you are well aware the more information you provide, the better information this...
What is "Cross Tripping" in speedtronic Mark iv controlled gas turbine?
New Replies:
I have heard of TCEA cross trip which directly relates to L4_XTP. Refer your control sequence for...
windbox pressure and flame scanner cooling fan pressure
New Replies:
By Mark on 17 August, 2009 - 7:37 am -
Hello,
So the furnace pressure is negative.
And I assume the flame scanner sight tube passes...
By sonicjoe_xx on 16 August, 2009 - 11:13 pm -
Hi Phil,
We use flame scanner cooling fans to cool our scanners. We are not using our instrument...
By Phil Corso on 16 August, 2009 - 11:45 am -
Sonicjco...
1) Hot air leaking from combustion chamber, then fire-box is overpressured. I don't...
By Mark on 16 August, 2009 - 9:16 am -
Hello,
A boiler can be designed to have a positive or negative furnace pressure. Does your unit...
Questions on the importance of reactive power?
Where is the logic located on the HMI?
New Replies:
You can copy the CSP and open it on any computer. If you do an F drive back up you can copy those...
I would like to have feedback on the definition of the terms:
1) Standard I/O
2) Intelligent or Smart I/Os
1) Standard I/O
2) Intelligent or Smart I/Os
New Replies:
By Roy Matson on 13 August, 2009 - 10:52 am -
1) Standard I/O
4-20 mA inputs/outputs
2) Intelligent or Smart I/Os
4-20 mA inputs/outputs...
Gas Turbine Training Course in Malaysia or Indonesia
Need some Control Screens for a Supercritical power plant.
New Replies:
By Pong on 13 August, 2009 - 5:30 am -
I work in coal fire 2*717 MW power plant and my email ID is:
pongtawat_k [at] hotmail.com...
7FA Tripping on Low Hyd. Trip Oil pressure
New Replies:
Hi,
In addition to what has been suggested, I understand that it would be of some help to you to...
The Device Summary lists the pressure that the Dump Valves operate at, and it's usually about 20...
Dear Genprospec,
it sounds as if your trip oil pressure is indeed low, have you verified it at...
GE Frame VI gas Turbine starting ignition problem
New Replies:
Hi,
In line with the issue, I would like to state that on liquid fired units, the problem of...
By wid on 11 August, 2009 - 1:20 am -
good day,
can you send me the GE reference manual that show the firing timer is set to 60 Sec?...
A problem with not seeing when a yaw gear fails causing the turbine to be yawed by just one yaw motor instead of 2. We want to get some kind of component for monitoring baseload current for pitch motors and trippng on overload.
New Replies:
Take a look at the Schneider Electric TeSysT Motor Overload Relay. It is available with numerous...
why generator are slow down and stop in overload after all.
New Replies:
A generator is a device for converting torque into amps which are then transmitted over wires and...
Signal from CT of reactive current compensator not reaching the AVR ?
GT erection and commissioning protocols
New Replies:
Hi,
Well if you do have some specific installation and commissioning doc, I would definitely...
DNP 3 versus Modbus
New Replies:
By Ken Ellerman on 11 August, 2009 - 2:49 pm -
I recently experienced a problem while trying to run the D20 after copying the configuration file...
Requirements and best practices to develop a SCADA system for wind farms
New Replies:
By Ronauld Weeks on 10 August, 2009 - 2:25 pm -
If you have a Plc why not just use ip21 (infoplus 21)....
Load Sharing Problem b/w GE Jenbacher Gas Gesets & Caterpillar Gas Genset
New Replies:
By Anonymouse #2 on 10 August, 2009 - 12:02 pm -
Dear Mr. Khalid ...
There is a person named Imran Naeem (a woodward certified Engineer) who can...
Looking to manipulate trend data.
information about MkV panel
New Replies:
Every "system" has an ML (Model List) number, usually a three- or four-character...
Reasons for high vibrations in turbines
New Replies:
By Phil Corso on 6 August, 2009 - 6:39 pm -
Hasadam...
1) Is vibration period sympathetic with rpm.
2) Does vibration amplitude change...
> What are the reasons for high vibrations in turbines? <
Does anyone have experience with...
Alarms appear on diagnostic alarm list about tcea of controller
New Replies:
TNH_OS is the HP shaft speed signal in the <P> core (one for <X>, associated with...
untill now there are many alarms at diagnostic alarm list:
dmw, dcur_a, dcure_b, dcur_c dpf,
on...
ALSPA P320 Documentation are required.
New Replies:
By Jo on 6 August, 2009 - 4:48 pm -
Hi MadMax (Mario),
Get in contact ? Why not. I was working with Alspa P320 (step 4 & 5) from...
By Rich Wargo, P.E. on 6 August, 2009 - 10:49 am -
What ever happened to calling the vendor and requesting literature?
...
hi Jo,
I would like to get in contact with you about that ALSPA P320. it is concerning a up...
Intermittent loss of cummunication between a EX2000 and a UC2000 controller.
GE gas turbine firing temperature calculation
New Replies:
By David Davis on 5 August, 2009 - 12:27 pm -
I'm updating this post because of the many inquiries we are getting for Turbine Inlet Temperature...
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