Select Page: 1 2 3 4 5 6 7 8 9 10 11 Next
Control.com topic...
Engineering
Topic: Engineering and workplace issues.
from the Forum department...
Water Treatment Plant Iconic Load
Posted by S D Jana on 24 April, 2014 - 3:37 pm
DM stream ionic load is lower than design in water treatment plant
Topic: Engineering and workplace issues.
from the Electrical & Instrument department...
Bently Nevada axial vibration due to lightening strike
Originally posted by Kamran Shamim on 23 April, 2014 - 2:58 am
Technical query - Bently Nevada axial vibration due to lightening strike
New Replies:
I think that these two articles from Orbit magazine address quite well your problem: ...
Originally posted by BrownPaper on 20 April, 2014 - 11:34 am
Difference between throttle pressure and 1st stage pressure
New Replies:
While not a direct answer to your query, I have used stage pressure as represenitive of steam...
With valves wide open, the 1st stage pressure/throttle pressure ratio will be a relatively constant...
Interesting. Is 1st stage pressure and Throttle pressure used to calculate throttle valve...
The first stage pressure on GE steam turbines is measured just downstream of the first stage...
Your understanding is correct for GE steam turbines....
Topic: Sensor technologies.
from the Real puzzler department...
Thermocouple readings problem
Originally posted by Michelle on 22 April, 2014 - 10:22 pm
Took temperature readings with J thermometer but only had K type wire!
New Replies:
what you have to be careful of is that Type-K thermocouple wire, and Type-K extension wire are two...
Another control.com thread http://control.com/thread/1336501913 involved back calculating when...
Topic: Engineering and workplace issues.
from the Automation List department...
difference between earthing and grounding
Originally posted by soujanya on 20 October, 2004 - 12:45 am
need to know the difference between earthing and grounding.
New Replies:
I think it is a term that means the same thing - a connection to earth. In any case, people make...
Yes there is quite difference between earthing and ground. in a simple way earthing protect the...
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:
KS... do you mean the short-circuit level on the 6.6kV level increased from 40 to 63kA? ...
Hi Phil Can you kindly advise what is the effect of system fault level on transformer design. ...
Topic: PLCs and related questions.
from the Urgent department...
Time and Date in Honeywell control builder
Originally posted by Mostafa on 8 April, 2014 - 2:48 pm
How could use time and date in control module?
New Replies:
Hi Mostafa, I saw your pictures, please go to the CM tree at your left and under the root node...
> Could you upload a picture showing your control builder? ...
> but unfortunately i couldn't find variables CEE1.HOUR...... > i have many control module...
thank you so much sir but unfortunately i couldn't find variables CEE1.HOUR...... i have many...
Hi Mostafa, you could get the hour, minute and second variables from the CEE under the...
Topic: PLCs and related questions.
from the gad trubine control system department...
moog servo valve operation
Originally posted by VK on 1 November, 2012 - 10:30 am
How does a MOOG servo valve operate?
New Replies:
Jyshen, You are most welcome....
Dear CSA, Thanks for your superb informative response. Your passion and sincerity to share your...
Posted by GRJS on 22 April, 2014 - 8:56 am
Measuring winding resistance in a delta connected transformer.
Topic: Motion control, servos, steppers, etc.
from the Forum department...
Driving a Stepper Motor
Posted by Hans on 18 April, 2014 - 3:40 pm
I am seeking advice on the best methods to effectively control a stepper motor.
Topic: Communications systems and equipment.
from the Forum department...
MODBUS Break Condition & Checksum
Originally posted by Derek on 16 April, 2014 - 12:14 pm
MODBUS RTU using RS485 to RS232 converter connected to RS232 to USB converter to communicate with electric meter using MODBUS Poll.
New Replies:
By Lynn August Linse on 17 April, 2014 - 10:53 am -
Having the RS-485 +/- reverse (or swapped) will usually look like a BREAK condition if blindly...
Maybe try a different converter (or your current setup with another slave). FTDI sells some that...
Topic: Sensor technologies.
from the Instrumentation & Control department...
Liquid gas level measurement
Originally posted by Engineer92 on 27 March, 2014 - 2:52 am
Liquid Gas Level measurement
New Replies:
The instrument to use in a application like this is a DP with capillaries and chemical seals with...
Topic: Software, including programming, OS issues, etc.
from the Computer department...
Serial Communication VB Code
Posted by Jinali on 16 April, 2014 - 4:11 am
Continuous reading of serial input
Topic: Engineering and workplace issues.
from the Level Control department...
Magnetorestrictive Level Transmitter issues
Originally posted by Braindead on 26 March, 2013 - 11:46 pm
Extreme vibration and loss of signal on level transmitters
New Replies:
Hi Mateus, there is only one instrument when you are working offshore on a FPSO or Platform...
Topic: Power generation equipment control.
from the Forum department...
Windmill Alternator
Originally posted by Karsten Rasmussen on 11 April, 2014 - 3:04 pm
Control of windmill alternator load
New Replies:
Karsten Rasmussen... following are two ways to change speed: o control blade-pitch. o control...
Karsten Rasmussen, I think it's going to be pretty difficult to control the speed of a wind mill...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Actuator indication and control
Originally posted by David Sutcliffe on 11 April, 2014 - 10:32 am
How to obtain indication and control from a Rotork actuator
New Replies:
Other types of actuators use two drive signals: - one signal drives the actuator 'open' - the...
please provide actuator model number and application...
Originally posted by Mik on 16 September, 2009 - 6:34 am
Turbo-generator response to changes in the power grid frequency.
New Replies:
Dear All, I am working on Hitachi Gas Turbines and Shin Nippon Steam turbines. There are three...
Dear mik, Droop is a function in the turbine controller to help controlling frequency on the...
Topic: Power generation equipment control.
from the Automation department...
Newbie in SCADA world, need some directions
Posted by Ranier on 10 April, 2014 - 10:17 am
Newbie in Power System Automation, needs direction.
Topic: The Business of Automation and Control
from the Investors department...
New Flow Measurement Method
Originally posted by Abdolazim Hasseli on 9 April, 2014 - 1:09 am
How to find an investor of instruments.
New Replies:
Abdolazim Hasseli... first get a reliable Patent Attorney! Do Not, repeat,...
Topic: Engineering and workplace issues.
from the Engineering department...
Deriving RMS from Vibration Transmiter
Originally posted by shakarami on 6 April, 2014 - 10:03 am
How we can drive the rms vibration from Peak
New Replies:
Shakarami... the reason I suggested that you first derive wave-shape is because there are...
Ali Shakarami, Using my preferred Internet search engine and the search term: "convert...
Shakarami... to determine the RMS value of any signal you must extract its wave-shape for one...
As you know the vibration signal may not completely sinusoidal! how can we drive the RMS value...
Only if if the single is sinusoidal! Phil...
V RMS=0.707*pk ...
Topic: Application Questions and Problems
from the snoozing while computers control. department...
Missing flight 370 is a control issue
Originally posted by MCC on 18 March, 2014 - 7:05 am
Long haul pilots today...program the flight management systems and snooooooooze
New Replies:
SOE Multatuli. Squence of events. 1) Altimeter readings incorrect: ...
Select Page: 1 2 3 4 5 6 7 8 9 10 11 Next
 
 

Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2014 Nerds in Control, LLC. All rights reserved.

Users of this site are benefiting from open source technologies, including PHP, MySQL and Apache. Be happy.


Fortune
Afternoon very favorable for romance. Try a single person for a
change.
Advertise here
Advertisement
our advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive