There are several methods for tuning of pid controller parameters, including tri to eror, the continuous cycling method, relay auto-tuning and the step test method ing trial and e (a) describe methods. methodbe the controller tuning procedures for two out of the four tuning (12 marks) what are the major advantages of relay auto-tuning?

mark him as !

answerlinnaeus;

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.