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Control.com topic...
Engineering
Topic: Engineering and workplace issues.
from the Engineering department...
square root extraction
Originally posted by ss on 5 October, 2002 - 11:19 am
kindly furnish the difference between a transmitter configured with square root extraction and linear...
New Replies:
Thanks, This was the first unimpressive, yet clear explanation of how to calculate the DP, or mA...
Topic: Motion control, servos, steppers, etc.
from the Forum department...
Driving a Stepper Motor
Originally posted by Hans on 18 April, 2014 - 3:40 pm
I am seeking advice on the best methods to effectively control a stepper motor.
New Replies:
Why a stepper motor and not a BLDC motor?...
Topic: Application Questions and Problems
from the CBM department...
lube oil level
Posted by syed on 14 July, 2014 - 9:24 am
Which Lube oil tnk level to be used: Absolute or relative
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:
Dear Sir, I am using 63kVA 20/.4kv, 4% impedance transformer. Will it have fault level current =...
Originally posted by ANA on 12 July, 2014 - 3:11 pm
Single controller for multiple purposes
New Replies:
I am assuming that the final output of the flow controller is a position command to a control...
of course simulteous control is not possible, but to talk about valves in a specific...
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:
Sameh Salama: It is my honor that you think my response helps. I advise to read CSA's...
Neo thanks a lot for your valuable reply, my unit is simple cycle. to overcome my problem issue...
Neo, Here are the kind of questions one should ask after a careful reading of the original...
Saneh I think when you referring to temperature control it is IGV temperature control,right? ...
Neo, sorry I have a question may be related to this discussion. GE gas turbine frame 6B old...
Neo, What's this "T4*"? We can talk about CSRGV; later. Once we finish with L4T!...
CSA, Thank you again for your comment, it helps a lot. So when the unit is on Base Load, the...
Topic: Engineering and workplace issues.
from the Forum department...
Dew Point temperature of Natural Gas
Originally posted by Lucky on 11 July, 2014 - 2:49 am
How to calculate the dew point temperature of the Natural Gas?
New Replies:
you have exceptional dry gas, in you case C3 drops out first, so condensation is not an issue for...
Lucky, I would imagine the turbines at your site have DLN-I combustors, because that's usually...
Topic: Application Questions and Problems
from the Forum department...
Installing muffin fans
Posted by Overamoed on 11 July, 2014 - 11:27 am
Best way to install muffin fans.
Topic: Sensor technologies.
from the Forum department...
Research on sensors
Posted by Adom David on 11 July, 2014 - 5:00 am
Calculation of Reliability and MTBF OF SENSORS
Topic: Engineering and workplace issues.
from the Automation List department...
Noise Problem with VFD/motor
Originally posted by Joel Young on 13 March, 2005 - 2:21 pm
I have a noise problem associated with a VFD/motor (75HP 460v wye start/delta run) system...
New Replies:
Sounds like an insulation breakdown/harmonic problem to me. But it would really take more...
Dear Sir, I was doing some trouble shooting and observation on inverter operation today. We have...
Topic: Power generation equipment control.
from the Electrical department...
VFD AC Motor Issue
Posted by Franco Kew on 10 July, 2014 - 10:06 pm
Starting and running an ABB type AC motor
Topic: Engineering and workplace issues.
from the Generator Seal Oil Differential Pressure department...
Seal Oil/Hydrogen Differential Pressure
Originally posted by skilash on 25 June, 2014 - 10:28 am
High generator seal oil flow, empty seal oil vacuum compartment, fluctuating differential pressure, high seal oil pump discharge pressure
New Replies:
any update?...
Topic: Engineering and workplace issues.
from the SIS Engineering department...
SIS Control
Posted by Amit on 8 July, 2014 - 3:47 am
Incorporation of control and protection function in SIS
Topic: Information resources, documentation.
from the Forum department...
How to learn DCS System?
Posted by A Nasser on 7 July, 2014 - 12:57 pm
How to learn DCS System?
Topic: Engineering and workplace issues.
from the serious department...
TXP control system administration
Originally posted by mhmd on 16 May, 2014 - 5:44 pm
is there a way to take an image of ES, PU, SU, OT, without using SCSI tape reader
New Replies:
thanks a lot, (we have Celsius one), I'll try...
Yes. As long as you have a CD drive installed in the computer you can use a freeware program called...
Topic: Computers in manufacturing; also hardware discussion.
from the serious department...
control adinistration
Originally posted by Reeny on 17 May, 2014 - 4:41 pm
is there a way to normalize the new ES with the AS?
in Siemens TXP control system
New Replies:
thanks a lot Mrl, shall you help me in the process of the second option, please > 2.)...
No. I am afraid not. You can not import the logic back in from the AS. You have only a few...
Topic: Engineering and workplace issues.
from the Forum department...
Electrical Engineering-Transformer
Originally posted by Santanu Das on 6 July, 2014 - 2:22 am
Is there any formula for calculating the number of turns in each side of a transformer??
New Replies:
I wouldn't bet on it. About the only way to know _exactly_ how many turns there are on it would be...
Topic: Engineering and workplace issues.
from the Forum department...
Electrical Engineering-Protection
Posted by Santanu Das on 6 July, 2014 - 2:25 am
Is it true that during short circuit of 3Phase line no zero sequence current will flow?
Topic: Engineering and workplace issues.
from the EC&I department...
Mark VI Droop geovernor response
Originally posted by Ster on 6 January, 2011 - 4:03 pm
Mark VI Droop governor control and parameters
New Replies:
thank you very much......
Topic: Engineering and workplace issues.
from the Machine Building department...
Liability?
Originally posted by Clay Robbins on 3 July, 2014 - 11:54 am
Am I personally liable if I build a machine without safety features to prevent an operator from getting hurt?
New Replies:
At issue is "re-building" a machine, not a matter of designing it. A craftsman involved...
Repairs in kind are exempted from individual liablity as long as you did the work properly, i.e. as...
Anything I'm real uncomfortable with, I'll do with a signoff from a company officer. Perspectives...
By dmh2dogs@yahoo.com on 3 July, 2014 - 11:19 pm -
Repairing a machine to factory specs sometimes releases one from legal ramifications. I however...
> So you are saying that I as a salaried employee is not at fault, and that the liability falls...
So you are saying that I as a salaried employee is not at fault, and that the liability falls back...
You are asking a question that cannot possibly be answered with the information you provided. It is...
repair is usually covered, beyond that when you start making major changes or improvements that is...
Topic: Engineering and workplace issues.
from the OPC to CS3000 communication department...
Reading text information from OPC to yokogawa CS3000
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?
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:
If you use a Modbus TCP gateway in front of the Modbus RTU line it is possible. If you can only...
Topic: Engineering and workplace issues.
from the Electrical department...
Junction Box Ex 'e' 'p' Calculation
Posted by Biky on 3 July, 2014 - 1:38 am
Looking for a junction box Ex 'e' 'p' Calculation
Topic: Motion control, servos, steppers, etc.
from the Forum department...
Maintaining constant RPM
Originally posted by xibalban on 2 July, 2014 - 3:21 pm
Energy stored in wounded spring!
New Replies:
I believe that you refer to centrifugal pendulum based governor used in diesel generators to...
>How do old mechanical gramophones >ensure constant RPM output? They use spring loaded...
Topic: Engineering and workplace issues.
from the GFCI help... department...
GFCI
Originally posted by JBMichael on 2 July, 2014 - 3:40 pm
I would like to install a GFCI in a control cabinet for a CNC machine.
New Replies:
Something like this maybe? AB 1492-REC20G A similar one is made by ASI, Phoenix, and...
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