What are the main functions of a protection relay?
What are the main functions of a protection relay? The main functions of a protective relay are the following: · Detection of the presence of a fault. · Detection of…
What is a protection relay?
What is a protection relay? Protection relay is an electrical device used to sense an abnormal condition in a power system and operate a circuit breaker…
How rating of a circuit breaker for a system is determined?
How rating of a circuit breaker for a system is determined? The rating of a circuit breaker for a system is determined based on the balanced three phase fault…
What is a short circuit?
A short circuit is a situation in which two or more different lines (having different voltage levels/ different phase/ different terminals) come in contact and finally leads to the flow…
What is Buchholz relay? Why is it used?
Buchholz relays are generally used to sense abnormal conditions occurring inside a transformer. It is a type of oil and gas actuated protection relay. It can be seen in all…
