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jeremy-hensley
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Protection and Switchgear Engineering
What is protection system?Explain needs of protection system?What are the goals of protection system?What are the essential qualities of protective relaying?What are different types of faults and its effect?What do you mean by zones of protection? Why adjacent zones are overlapped.?
Explain what is primary protection & backup protection?
Explain a) over current protection d) directional over current c)differential d)distance protection