HRC Fuse -Construction,Diagram, Working, Types
A fuse is a small wire connected between two terminals that are mounted on an Insulating base and connected in …
Switchgear-Protection
Restricted Earth Fault Protection(REF) of Transformer
Differential protection is used to protect the transformer and generator against internal fault but for larger generators, additional protection is …
Differential Protection of Transformer- Working Principle, Differential relay
The transformer is the main device of the power system and its reliability is more important. Hence protection must be …
SF6 Circuit Breaker- Working Principle, Construction, Advantage
SF6 circuit breaker uses sulfur hexafluoride gas as an arc quenching medium. SF6 gas is used because it has high …
Earth Leakage Circuit Breaker (ELCB)-Working Principle, Construction
Electrical safety is the main aim of any residential or commercial electrical installation. To prevent electrical shocks and identify insulation …
Master Trip Relay 86-Lock Out relay working Function
Master Trip Relay is an important auxiliary relay in power system protection. In this article we will discuss, the working, …
Trip Circuit Supervision Relay (95 Relay) Working
In power system protection, circuit breaker tripping is crucial if any fault occurs in the system. If the trip circuit …
Overload Relay-Working Principle and Construction
Overload relay is an important component in protecting motors from electrical overloads. By monitoring the current flow to motors, these …