Captive Power Generation - Frequency Control
Load sharing and frequency control with multiple generators operating in parallel
Push Experion Quick Builder Point to TDC 3000 Point
Push a SCADA (Quick Builder Point) down to a NUMERIC on the TDC 3000 System
Equipment Recommendations Needed for 4 Wire Power/Control of 4 Devices
What equipment can be used to individually control and power four 120V devices using only four conductors?
By Sparky49 on 2 October, 2015 - 5:49 am
Mr. Matson, Thank you for the reply. The ladder diagram looks good. The full diagram looks...
By Roy Matson on 1 October, 2015 - 5:15 pm
Moore Industries used to have a device called a Data Concentrator however it would need a pair of...
Control Panel Standard Practices
By Bob Peterson on 1 October, 2015 - 7:57 am
I don't know that what the control panel is for makes all that much difference in layout and...
Multiple Project Connection Package- Yokogawa CENTUMVP
Connecting two projects of Yokogawa CENTUM VP via multiple project connection package.
Gas Turbine Vibration Limits
Vibration limits of GE Frame 9E Gas turbines
4-20 ma Standard Instrumentation Measurement
Questions about 4-20ma standard and 250 ohm restistance.
24VDC Power Source Standard Power Source
Why is 24V DC standard power source?
By Curt Wuollet on 25 September, 2015 - 10:33 pm
6, 12, 24, 48 are standards because that was what you got with various combination of packaged lead...
How can i convert CFM to Pascal?
Difference between NPN/PNP Sensors
CAP Certified Automation Professional Exam
Does anyone tried to pass the exam of CAP (certified automation professional) recently?
Is a dedicated control system required for anti-surge control of compressor?
Recommendations for Getting Rid of Overstocked Materials
Need Recommendations where to go to get rid of overstocked materials.
Modbus Address Maps Library
Looking for libraries of Modbus Address Maps
Total Organic Carbon in Steam
what is relationship between total organic carbon and fouling factor in steam?
Booting up my UNIX System; the screen is frozen.
By controlobserver on 17 September, 2015 - 7:03 am
It is very difficult to tell what your question is. It looks like you are asking some questions...
Zero and Even Order Harmonics
Posted by Yudie Soeryadharma on 16 September, 2015 - 11:25 am
Please help me understand the zero and even order harmonics
By Roy Matson on 16 September, 2015 - 12:41 pm
I have found that any form of solid state switching plays havoc with the sinewave. It doesn't even...
Looking for others experiences with Yaskawa L&T LT Drives
Need user manual for Arcom Director Series IV-P Gateway
Drawing numbers change in same sheet X of Y. Standard for this?
Earth Fault in One Generator out of Five Generators Running in Parallel
Posted by vivek vadukar on 9 September, 2015 - 1:13 pm
Suddenly one generator other than isochronous mode generator tripped in rotor earth fault
Problems getting one phase of 3 phase from 180 volts to 120 volts
By Curt Wuollet on 7 September, 2015 - 8:39 pm
Yes, I've worked on the setups with a single DC supply and a rack of drives. They are big in the...
By Steve Myres on 7 September, 2015 - 12:17 am
Curt, to replicate the single to three phase VFD thing in larger horsepowers all you'd need is a...
By Nemisis on 6 September, 2015 - 6:46 pm
Your question is a bit unclear. I assume you have a single phase motor driving a three phase motor....
By Curt Wuollet on 6 September, 2015 - 11:58 am
Those arrangements are inherently imbalanced, They can be made to work after a fashion. You can...
64 Bit RTU with Redundant Protocol IEC 104 and IEC 101
64 Bit RTU supported with IEC 104 & IEC 101. Connected to 2 master control centres with redundant link in 104 or 101
How does everybody like to indicate on HMI the state of digital IO? Conventions on color, shape, text, or a combination that is intuitive at a glance?