1 of 10

�Busbar Protection�

2 of 10

�Differential Protection of Busbars:- Selection of CT Ratios in Case of Busbar Protection: Wrong Method�

3 of 10

�Differential Protection of Busbars:- Selection of CT Ratios in Case of Busbar Protection: Correct Method�

4 of 10

�Differential Protection of Busbars:- Selection of CT Ratios in Case of Busbar Protection: Correct Method�

5 of 10

�External and Internal Fault�

6 of 10

�Actual Behaviour of a Protective CT�

7 of 10

Circuit Model of Saturated CT�

8 of 10

External Fault with One CT Saturated: Need for High Impedance Busbar Protection�

9 of 10

Supervisory Relay�

10 of 10

Protection of Three-phase Busbars�