1)Explain the following terms related to a Circuit breaker i) Arc voltage ii) Restriking voltage iii) Recovery voltage?
2)Explain the construction & working of Air blast Circuit breaker?
3)Explain construction & working of induction Disc relay?
4) What are the types of Differential relay? Explain in brief current differential relay ?
5) Write short notes on Current chopping phenomenon?
6) Explain with a neat sketch construction of SF6 Circuit Breaker?
7) Explain the construction & working of Air blast Circuit breaker?
8) Draw & Explain Merz – Price protection of Star Star connected Alternator ?
9) What is the rating of Circuit breaker ? Explain?
10) An alternator rated 10 kv protected by balanced circulating current system has its neutral grounded through a resistance of 10 ohms. A protective relay is sort to operate when there is an out of balance current of 1.8 A. in the pilot wires which are connected to the secondly of current transformers with ratio 1000/5 ?
11)What are the various abnormal running conditions which may exit in a generator?
12)What are their Effects & how these Effects can be minimized?Explain in Briefly what you understand by Auto Reclosure?