Answer / abinecious

3 element control means if 1 valve control 3 parameter like
in power plant 1 valve control steam flow,drum level and
feed water flow.

Answer / rushikesh s gaddpawar

Three Element loop control is close loop system. In this
system mainly use in power plant that means it use 1.main
steam flow 2.feed water flow 3.drum level.

Answer / shyam

Three element loop is a close loop control system where
control 3 variables

Answer / ashfaq alam

Three element we used basicaly for boiler steam
control.steam pressure, boiler feed water flow and boiler
drum level control and through final control element mean
Flow control valve.

Answer / seshu

Single cortrol valve control the three industrial parameters at same time for ex: boiler drum level control valve

Answer / chris

You nee to be specific, is it -
A) A 3 element loop?
B) 3 elements of a loop?

A) Normally used for boiler control.

B) 1. Detection (Element)
2. Control (controller)
3. Correction (valve)

Answer / ainadz

Basic for close loop.

1 - measure (trasmitter)PV
2 - control (controller)
3 - control valve (MV)

Why we using 250ohm resistance during lab calibration and why not using in field in one plz define deeply???

1 Answers   Cisco,

What is first echo & echo window in radar type level transmitter?

0 Answers  

what does it mean an active front end in vfd plz explain it briefly

0 Answers  

Draw a complete P&ID of a flow suction tank indicating all control & protection equipment. Indicate all its inlets and outlets. Explain the controls for this system

0 Answers  

Where we cant instal mass flow meter.

1 Answers  

What is linearity of RTD over 0 to 200 degC?

1 Answers   Honeywell,

PID controller is used for which type of compensation…… a) lead comp. b) lag com. c) lead lag com.

12 Answers   Engineers India Limited,

how to calculate static pressure in a pipe line,when we know the DP(differential pressure) in the line, area of the pipe? please any one tell me the relation between them..?

2 Answers  

What is the maximum operative of Drive ?

2 Answers   Reddy Labs,

how to calculate MMWC values in to Tonns(MMWC values showing in DP transmitter and Tonns value showing in Totalizer). please tell me details?

2 Answers   Chemin C I, MSP,

1. what is 3 point calibration & 5 point calibration? 2. If we use hart communicator to set the LRV & URV of a smart transmitter, did we calibrate the transmitter? why? 3. Make a complet list if meterials needed to properly connect a pressure gauge to a steam pipe using 1/2 inch stainless steel tubing. The gauge connections is 1/2 inch NPT-M and the steam pipe tap has a 1/2 inch female coupling, compression fittings are use. 4. What are the tools in loop checking? 5. What would the ISA symbol of a square root extractor look like? 6. What would you do to completely prepare for the configuration? 7. What safety measures must you undertake when doing configuration? 8. what are the two most commonly use programming languages used when we configure a PLC? 9. What would you do if you accidentally skipped a step in the configuration procedure? 10. How would you know if the configuration were sucessful? 11. Name at least 3 selections available when we configure the burnout protection of a controller?

3 Answers   EI Electrotechnical Institute,

How comparison of objects is done in PHP5?

1 Answers   TIS,