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What is Cascade Control System?
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0
|
1591
|
March 31, 2018
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Distributed control system
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0
|
1052
|
March 31, 2018
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|
Why is there a direct and reverse action on a controller when the control valves are already having direct (air fail to close)/reverse (air fail to open) actions?
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0
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636
|
March 16, 2018
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What type of controller (P, PI, PID) is preferred on the following process control loops? 1) Pressure 2) Level 3) Flow 4) Temperature
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0
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1391
|
March 16, 2018
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Explain the following terms in a controller? 1) measurement variable 2) desired variable 3) deviation 4) output
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0
|
604
|
March 16, 2018
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|
Explain how to change a controller from auto to manual and vise-versa?
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0
|
636
|
March 16, 2018
|
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What is a ‘bump less transfer’ in a controller’s auto/manual change over?
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0
|
403
|
March 16, 2018
|
|
What will be the output of a reverse acting controller when the process changes from 50% to 75% where the proportional band is set at 50%, set point is set at 50%?
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0
|
492
|
March 16, 2018
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|
What will be the output (increases or decreases) of a direct action controller when the process goes above the set point?
|
|
0
|
679
|
March 16, 2018
|
|
What is a ‘batch’ facility on a controller?
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|
0
|
444
|
March 16, 2018
|
|
What is a ‘reset action’? Explain with an example?
|
|
0
|
650
|
March 16, 2018
|
|
What is a ‘gain’? Write the relation (formula) between a gain and proportional band?
|
|
0
|
462
|
March 16, 2018
|
|
What is a ‘proportional band’? Explain with an example?
|
|
0
|
635
|
March 16, 2018
|
|
What is a gap controller?
|
|
0
|
2044
|
March 16, 2018
|
|
Explain what is ‘direct action’ and ‘reverse action’ on a controller?
|
|
0
|
464
|
March 16, 2018
|
|
What is a ‘controller’? Where are its application areas?
|
|
0
|
6152
|
March 16, 2018
|
|
Controller tuning
|
|
0
|
761
|
March 5, 2018
|
|
Cascade control system
|
|
0
|
802
|
February 22, 2018
|
|
How Control loop should be tuned in process loop?
|
|
1
|
807
|
February 8, 2018
|
|
What is galvanic isolation?
|
|
0
|
422
|
February 8, 2018
|
|
What is the difference between offset and hysteresis?
|
|
0
|
2500
|
February 8, 2018
|
|
Analog to Digital Converter
|
|
0
|
446
|
February 2, 2018
|
|
Open loop and close loop control systems in boiler
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|
1
|
2436
|
January 26, 2018
|
|
Process Control Terms
|
|
0
|
1720
|
January 22, 2018
|
|
What are the possibilities for turbine trip due to hotwell tank level High
|
|
1
|
2235
|
January 22, 2018
|
|
What does Turbine TRIP mean?
|
|
0
|
767
|
January 22, 2018
|
|
Turbine speed constant - 6832 rpm and TG load will various with HP valve how it possible
|
|
1
|
544
|
January 21, 2018
|
|
Steam Turbine Governing
|
|
0
|
450
|
January 21, 2018
|
|
What are the tripping parameters of turbine
|
|
1
|
1583
|
January 21, 2018
|
|
Types of Woodward governor and how to control LP and HP control valve
|
|
1
|
5444
|
January 21, 2018
|