Ask a Question
Doubts ?
Ask Us
Categories
can any one give me a brief note on single element & 3 element control of power plant instrumentation?
Rajni
on 2011-05-14 09:30:003 element control means if 1 valve control 3 parameter like in power plant 1 valve control steam flow,drum level and feed water flow. Three element loop is a close loop control system where control 3 variables. Basic for close loop. 1 - measure (trasmitter)PV 2 - control (controller) 3 - control valve (MV) 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.