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Control.com topic...
Engineering
Topic: Engineering and workplace issues.
from the eng department...
Standard Recipes Designation ID
Posted by Gustavo Borda on 22 October, 2014 - 4:28 pm
Is there any rule to designate a process recipes (IDs)?
Topic: Engineering and workplace issues.
from the Automation List department...
Why is current transformer secondary short circuited?
Originally posted by Anonymous on 6 June, 2007 - 11:47 pm
Why is current transformer secondary short circuited during the operation?
New Replies:
why voltage not high when we short the C.T secondary side? Pls explain with principle....
Originally posted by Phantush on 21 October, 2014 - 3:28 pm
Convert RMS voltage to Analog signal + Per Unit
New Replies:
If I'm reading you right you want to measure the Peak Voltage. Use a diode and capacitor to...
Topic: Engineering and workplace issues.
from the Instrumentation department...
Control Valve Fail Action
Posted by xyz on 21 October, 2014 - 6:28 pm
control valve fail action discussion
Posted by Rich on 21 October, 2014 - 3:28 pm
Looking for feedback on flow meters and flow computers from Flow Technology Inc
Topic: Power generation equipment control.
from the Power operation department...
High pressure turbine bypass system
Originally posted by Zouhen on 17 October, 2014 - 5:19 pm
During Turbine Low vacuum Trip what is the position of high pressure turbine bypass control valve
New Replies:
> Please JEB send to me your Email I am a guest on this forum and not sure of the rules...
Please JEB send to me your Email...
Do you have any drawings? I would think there would be more to BPV logic than just a low vacuum...
Dear Gutman thank you for your reply. the boiler is reheater boiler with hp bypass. Please...
first, I have never seen a CCP, nor a unit with multiple bypass. I have worked nukes with a single...
Dear, What type of boiler you have, reheater provided, hp bypass will provide steam to reheater...
Dears, Actually turbine hp bypass cv when Turbine low vacuum trip it will open and keep the...
Dear Zouhen In this case when Low vacuum Turbine Trip, both LP and HP pressure turbine bypass...
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, Thanks for all your replies. The last reply by BC* nailed it. Yes there is a historian...
Topic: Power generation equipment control.
from the Forum department...
Electrical Rotating Equipment Training
Originally posted by Ajiit on 20 October, 2014 - 1:39 pm
Where or how do I find or start training to become a technician for turbines, generators, etc.?
New Replies:
Hi Arjiit, I started my career in the UK a long time ago (around 1963). I did an Inst. Tech....
Topic: Power generation equipment control.
from the Power generation department...
Generator and Capacitor Bank
Originally posted by fluidflow on 22 July, 2014 - 1:04 am
Totally stumped by the recent brawl over utility of capacitor bank in power generation.
New Replies:
Fluidflow... I apologize for having missed your post! What did you mean by "LINE LOAD"...
Topic: Engineering and workplace issues.
from the Instrumentation department...
Installation of Ex-ia Converters in Ex-ia Junction Box
Originally posted by giorgioCDB on 26 August, 2014 - 11:34 am
Installing Ex-ia converters in Ex-ia Junction Box instead of EX-d
New Replies:
as temperature converters are Ex-ia, they can be mounted in Ex-D JB or even weatherproof JB as it...
Topic: Engineering and workplace issues.
from the Forum department...
Customized Control System ExD Enclosure
Originally posted by Rashid on 27 August, 2014 - 12:46 am
We have procured a Customized PLC ExD Enclosure.

New Replies:
if any changes has been done in Ex-D enclosure, new holes are drilled or any components installed....
Topic: Communications systems and equipment.
from the Forum department...
RS485 to Analog Input Conversion
Posted by cherrypi on 20 October, 2014 - 3:38 am
Is it possible to convert (multiple) readings being transmitted through RS-485 communication to analog signals?
Topic: Engineering and workplace issues.
from the Instrumentation department...
Reinstallation of an Orifice Plate in a Pipeline.
Originally posted by Arafath Ali on 13 October, 2014 - 2:20 pm
How to reinstall an orifice plate in a pipeline after the information regarding the HP and LP side is lost?
New Replies:
Placing the beveled surface on the HP side definitely reduces the discharge coefficient and throws...
> LP is no angle, HP is angled. just remember where the medium is coming from. its the HP. I...
> Once the information regarding the HP and LP side of an orifice plate is lost, how to...
It is not real clear what is being asked. If it is regarding the direction that the orifice plate...
Typically the plate is inspected and all dimensions re-measured, the transmitter can be...
Topic: Power generation equipment control.
from the Forum department...
Speed of Synchronous Generator
Originally posted by Muhammad Salman on 26 February, 2010 - 4:08 pm
Why Speed of Synchronous Generator decrease with increasing speed?
New Replies:
Saudaslam... the situation you described is not that of a local generator connected to an...
Thank you CSA ...
Saudaslam, It seems I don't have the answer to your question. Perhaps another contributor to...
Saudaslam, Good, seemingly simple, question; extremely difficult to answer because it depends on...
thanks for reply, I need a little more clarification generator (275 MW at 18 kV working at...
If grid frquency decreased from 60 to 57 HZ what effect on generator active power increase or...
Topic: Engineering and workplace issues.
from the Forum department...
Orifice plate tapping -Flange or D, D/2
Originally posted by instruguy on 16 October, 2014 - 2:19 pm
Which type of orifice tapping - Flange or D, D/2 works best for larger pipes?
New Replies:
On rethink, you get higher d/p with flange taps than you do for pipe taps so the metering error...
d, I didn't ask the basic question. the reason is obvious. Sure of orifice plate as a basic...
No major advantage flange taps are the most common, but if the flanges get too costly, pipe...
Hi Do I get any advantage by using flange tap? Will accuracy has any effect? Thanks ...
It is all a function of service conditions, fluids, piping layout, and what you are trying to...
Topic: Engineering and workplace issues.
from the Capacitors department...
Capacitor Fuse Blowing
Originally posted by charz on 18 October, 2014 - 2:35 am
What is the current flowing when one fuse blows in a three phase star connected capacitor bank?
New Replies:
Charz, Is the mid-point of the star-conected capacitors grounded/earthed? Regards, Phil...
Originally posted by vignesh on 12 October, 2014 - 5:34 am
How do I change my career from a gas turbine operator to a combined cycle operator?
New Replies:
Hi, Thanks Mr. George...
Topic: Power generation equipment control.
from the CONTROL emissions monitoring systems department...
Gas Turbine CEMS Operating Parameters
Originally posted by vignesh on 12 October, 2014 - 5:46 am
Operating parameters for monitoring gas emissions for gas turbine
New Replies:
Thanks to everyone....
Your data logger should reveal ALL of the information you need. Permit information should also...
Topic: Motion control, servos, steppers, etc.
from the Electrical & Systems department...
Over-speeding of Slave Motor in Rock Conveying System
Originally posted by Ravindra K Maheshwari on 28 September, 2014 - 6:16 am
Rock coveyor is being driven by Master and slave, two motors in load sharing mode. Slave motor is over-speeding when master gets higher loads.
New Replies:
Is there the possibility that despite the use of VFDs, the motors are locking up at full voltage? ...
I believe you mentioned both master and slave motors are connected to the same conveyor. If...
Topic: Engineering and workplace issues.
from the No Man's Land department...
Large area protection
Originally posted by Ken Crater on 22 October, 2012 - 8:26 am
What are the most effective ways to protect the area around an automated machine that is physically large?
New Replies:
Ken, We have the option to modify the working envelope of a robot by programming it. This helps...
Topic: Application Questions and Problems
from the What, me worry? department...
Risk assessments for automated machines
Originally posted by Ken Crater on 19 October, 2012 - 12:31 pm
Do you do formal risk assessments as part of the design process?
New Replies:
Yes Ken, I'm related to the Gas Turbine based co-generation power plants. The Industry...
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, I regret to reply after such a long pause. Right now I am about to join a new...
Topic: Communications systems and equipment.
from the Forum department...
Importance of RF in Automation engineering
Originally posted by Rushi Shroff on 13 October, 2014 - 12:58 pm
Should I study RF SYSTEM DESIGN FOR WIRELESS COMMUNICATIONS in depth for Industrial Automation?
New Replies:
Yes, There is a growing demand of communication and wireless technology in the automation...
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