what is diffrence between cascade & three element system.
Answer Posted / bharathi
Cascade loop is the general terminology in control system.
It consist one master and slave controller. In that one
controller output is given as set point to the other
controller. The secondary controller output will go to final
control element.
Three element controls is technique which is used in boiler
drum level control. In that, by measuring steam flow
(demand) we are controlling the feed water flow to maintain
the drum level. In this technique we are using cascade loop.
| Is This Answer Correct ? | 32 Yes | 5 No |
Post New Answer View All Answers
I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?
What is difference between ESD and PLC please Explain me clearly.
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
What is instrumentation instrumentation engineering?
Specify for Cables - Flame Retardant and Fire Resistant?
What is hp & mp seperator .& what is its working principle ?
Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?
why we r opening HOT BYPASS valve during startup of a compressor?
What is the use of temprature compensation?
line up procedure for dp type flow transmitter?
WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN
i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure
Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?
What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?
How to calibrate capillary type level transmitter