Paper of Protection and Switchgear is very good to study and in modern type of appliances and it’s used to protect the appliances. The switchgear is used to switch on or off the appliances.

Importance of the paper:

The class and mode concept in case of loop brings about much ease to the complexity of programs.

Pattern:

Examination of Switchgear and Protection consists of questions which are of 3 types in different groups and there are total of 9 questions in it. Section A holds 10 questions which require very short answers and all of those questions are of same marks with each question being compulsory. Group B is of 5 questions and 4 questions from it are needed to be written. Section C is of 3 questions and 2 from it are required to be attempted, questions are of essay type and segregated into sub-questions. Questions in the last section are of short notes and each note carries same marks in it.

Questions asked in the paper:

The paper contains questions which are such as Neutral grounding, Translate relay, valve type lightning arrester, protection of modern transformers, carrier protection of lines, protection of transmission lines, compare characteristics of various distance relays, protection employed against loss of excitement of an alternator, differential scheme for bus zone protection, meaning of bulbar, feeder, distributor, fusing factor, resistance switching, IDMT relays and overcurrent protection, Buchholz relay, list merits and demerits of gas relays, advantages of neutral grounding system etc.

Time and marks:

100 marks have been given to this paper and for this you will get 3 hours.

Recommended books:

Power Systems by SumitArora

Power Systems by TMH Publications