Answer / naveen kannan

P controller has an offset value and the desired value lies to surround the offset value. I controller does not have an offset value but the desired value tries to come closer to corrected value. But I controller and P controller has a longer response time. D controller the deviated value comes closer to the desired value and has a shorter response time.

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I am completed DEEE in tamilnadu, now i am working in andhrapradesh with 2.5 year experience in relavent field. capacity of the tranformer is 11KV, 1MVA Transformer, i am eligible for getting c licence in andhrapradesh pl help me.

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