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Control.com topic...
Engineering
Topic: Power generation equipment control.
from the serious department...
charge accumulator
Originally posted by Kene on 23 October, 2011 - 1:17 pm
charge accumulator method
New Replies:
Thanks CSA, We have checked in Device Summery & PID drawings, But the pre-charged pressure...
Topic: Engineering and workplace issues.
from the control systems department...
Orifice Tapping Point
Originally posted by amanemisa on 31 July, 2014 - 4:35 am
Orifice tapping point for additional DP flow transmitter
New Replies:
Depends on the criticality of your emergency criteria. Most operating plants typically require...
Topic: Engineering and workplace issues.
from the electrical, domotics department...
modbus-scada
Originally posted by Remi Van Damme on 2 July, 2014 - 1:15 am
is it possible in a modbus network to have a SCADA system which polls for data from the slaves and another SCADA system which also collects data from the same slaves?
New Replies:
We have 2 solutions for your application. In order to avoid having 2 masters in your PC, you will...
Topic: Engineering and workplace issues.
from the Instrumentation and Control department...
Control Valve Questions
Originally posted by Anil Bathra on 30 July, 2014 - 3:49 am
fail safe position of control valve
New Replies:
Thanx Raymond. But how double acting Piston type control valve will work for fail safe position?...
Failsafe with regards to control valves implies either you require your process line to close or...
Topic: Engineering and workplace issues.
from the Instrumentation & Control department...
VFD Pump Control
Originally posted by raynvd on 30 July, 2014 - 9:03 am
Is VFD pump control faster than pneumatic valve control
New Replies:
I'd seriously doubt it. The VFD is limited in both the speed with which it can increase flow...
Topic: Power generation equipment control.
from the Controls department...
GE Gas Turbine IGV angle
Originally posted by BND on 28 June, 2014 - 4:31 am
What is the logic? GTG is not operating in Temperature Control mode.
New Replies:
CSA, Already i checked the diesel engine loaded speed which was 2320 rpm and replace the torque...
Sameh Salama: Glad to receive your reply.But this is out of my capability, lets ask CSA for...
Topic: Power generation equipment control.
from the Forum department...
Standby AC power supply for power plant
Originally posted by masoud on 28 July, 2014 - 2:36 am
Which is a more reliable AC backup power supply UPS or Inverter?
New Replies:
Switching time is more important after failures of mains supply. so UPS is better solution and...
Topic: Engineering and workplace issues.
from the OPC to CS3000 communication department...
Reading text information from OPC to yokogawa CS3000
Originally posted by ANWESHA on 3 July, 2014 - 4:08 am
Is it possible to read text/string from OPC to CS3000 in some way?
I would like to read a Batch number which is scanned and fed to OPC and display in the graphics of CS3000.
Is that possible?
New Replies:
Hi Anwesha, If your customer uses a data historian (e.g. Exaquantum) you will probably find that...
I believe that the CEntum can be a Modbus Master. If you scan the batch number and write it to a...
By Ernest M Smith on 25 July, 2014 - 2:15 pm -
Are you using the Yokogawa Batch Software? Have you established connection of any other data...
Topic: Programming languages.
from the Forum department...
KOYO vs ADC memory type
Originally posted by Eric on 29 July, 2014 - 3:50 pm
KOYO and ADC - what do they stand for?
New Replies:
Koyo R = register I assume I, Q = common input & output nomenclature outside the US. M =...
Topic: Power generation equipment control.
from the instrumentation department...
generator hydrogen cooling system
Originally posted by None on 25 February, 2010 - 6:32 am
hydrogen cooling system for GE frame6 generator manual
New Replies:
Hello, Ruiyu Chen, We don't know what kind of turbine-generator you are talking about. My answer...
Hello, I am ruiyu chen. After reading your post, I think you are the one who can help me to get...
Topic: Continuous process industries, DCS questions.
from the control department...
Bypass Valve Fail Position
Posted by song on 29 July, 2014 - 1:25 am
What is the moist suitable failure position for turbine bypass valve?
Topic: Power generation equipment control.
from the 9fa department...
Re: 9fa Gas Compartment Vent Fan 88vl
Originally posted by Meganathan S on 28 July, 2014 - 2:14 am
Improper ventilation in gas compartment
New Replies:
Meganathan S, The turbine and auxiliary packager (GE or BHEL or ???) should have provided a...
Posted by Asko on 28 July, 2014 - 4:09 pm
Impact of null current shift in proportional electric actuator
Topic: Power generation equipment control.
from the Change in level as temperature change department...
Lube oil level
Originally posted by Yassar on 25 July, 2014 - 2:55 am
Lube oil level dropping as temperature increases
New Replies:
I did not look at the validity of the information you provided with your concern or considered the...
I'll simplify From your observations, a 200ml of hot oil cools to 150ml. Its volume changes,...
CSA, Thanks for your reply. No, I am not concerned about the leaks and there were no leaks in...
Yassar, Are you concerned about a leak or leaks? Increased consumption when the oil is hot? Are...
Posted by AS on 28 July, 2014 - 4:01 am
Properties of Torquemotor and piezo based valve positioner. Function of Spool Valve in Valve Positioners.
Topic: Engineering and workplace issues.
from the Control Engineering department...
LQR Command and failed stabilization
Posted by Sara khaan on 28 July, 2014 - 2:29 am
Getting errors when using dlqr command for my state space equation
Topic: Power generation equipment control.
from the Controls department...
Why Minimum Value Gate Used in GT controls?
Originally posted by 4_20 mA on 21 January, 2013 - 10:03 am
I have seen this Minimum value gate for controlling GT's and Booster Compressor in couple of CCPP.
New Replies:
fluidflow, Yes; it's unfortunate that too many plants do not allow interested parties to open...
Sir, I checked it with my instrument department and then came to know that max. FSR achieved...
fluidflow, Pretty good description; but I would be surprised if FSR actually goes to 33% during...
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:
Fluid flow Indeed a very interesting website recommended by you. I have seen some of the...
Hello There, Swirl angle is the angle between measured representative exhaust gas...
Thank you so much for such a wonderful reply. Currently we are not facing high spread problem,...
What to say, CSA has left nothing to add. If I had initialized the answer I would have used,...
Izhar, The description below presumes your questions refer to a GE-design heavy duty gas...
Topic: Engineering and workplace issues.
from the Operation department...
Using Synthetic Oil in Gas Generator
Originally posted by GE on 24 July, 2014 - 8:55 am
Why use synthetic oil in GE LM 2500 gas turbine?
New Replies:
GE, The gas generator of GE LM units is an aircraft engine, and most aircraft engines are built...
Topic: Sensor technologies.
from the Control Systems department...
1oo2 voting for temperature transmitter
Originally posted by christine on 23 July, 2014 - 4:30 am
1oo2 voting for temperature transmitter
New Replies:
http://www.controleng.com/single-article/monitoring-critical-vessel-te mperature/224a1b309e.html ...
you might consider placement in valve-free connecting pipe, but that depends on a number of...
Topic: Power generation equipment control.
from the Maintenance department...
Problems with air intake and dirty turbine
Originally posted by Arianna Mambrini on 23 July, 2014 - 4:30 am
Air intake filters clean but turbine dirty
New Replies:
Hello there, Please let us know about the kind of inlet duct and the paint which was applied in...
Topic: Software, including programming, OS issues, etc.
from the Software smithery department...
Ethernet/IP and Python
Originally posted by Mark Q Norman on 22 November, 2013 - 9:31 am
Need some help on using Python to test Ethernet/IP implementation.
New Replies:
Hello, At: http://www.hmisys.com/downloads/msExcel.zip is an Excel file that shows a...
By Lynn August Linse on 24 July, 2014 - 2:03 pm -
Sure, send an email direct to lynnl at digi.com. I've actually been asked quite a bit lately. I am...
Lynn, I'm working on a simulation software based on python, and I need to be able to read and...
Topic: Power generation equipment control.
from the Electrical department...
Selection of VCB as per short circuit current
Posted by Shaheed on 23 July, 2014 - 3:22 am
Do we need to replace the VCB of a machine with higher short circuit rating if more machines add parallel at same bus bar.
Topic: Application Questions and Problems
from the CBM department...
lube oil level
Originally posted by syed on 14 July, 2014 - 9:24 am
Which Lube oil tnk level to be used: Absolute or relative
New Replies:
Sam, great detail you have provide. Thank you very much for the response. This is really...
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