Electrical Engineering   SwitchGear & Protection

About the SwitchGear & Protection category (1)
Difference between metering and protection current transformers (1)
Working Principle of Antipumping Relay (1)
Why Doesn’t Electrical Tester Glow for DC? (1)
Advantages of static relay over electromagnetic relay? (1)
What is a Circuit Breaker? (2)
Functional Testing of MCB (1)
What is difference between MCB and ELCB? (2)
Where to use 4 Pole MCB instead of TPN MCB (1)
Where to use 4 Pole or TPN MCB instead of 3 Pole (TP) MCB (1)
Where to Use TP, TPN and 4P in Distribution panel (1)
Difference between TPN and 4P (or SPN and DP) (1)
Difference between 1 pole mcb and 3 pole MCB? (1)
Protection Relays (1)
Overcurrent Relay (1)
What is primary protection? (1)
How definite time lag is achieved in attraction armature relays? (1)
For what type of fault does Buchholz relay is employed? (1)
Where is directional relay used? (1)
Define Plug Setting Multiplier? (1)
What is meant by "Relay Settings"? (1)
Functions of Differential Relays (1)
What is percentage differential relay? (1)
Where Impedance relay, Reactance relay and Mho relays are employed? (1)
Why biased differential protection is preferred over simple differential protection? (1)
Why distance protection is preferred as primary protection compared to over current protection for transmission lines? (1)
What is the operation principle of differential relay? (1)
Where does Negative phase sequence relay is employed? (1)
What is dielectric test of a circuit breaker? (1)
How direct tests are conducted in circuit breakers? (1)