Protection of alternator

1. Protection of Alternator
By,
Rohini Haridas
Assistant Professor,
Dept of Electrical Engineering,
SSGM College of Engineering,Shegaon

4. Unbalanced loading

5. Protection for stator winding faults
• Phase to phase faults
• Phase to ground faults
• Inter-turn faults
Differential method of protection is most
commonly used.

6. Current differential relay

7. The amount of current flow through the relay will depend upon the way
of fault is being fed

8. Percentage differential relay

9. Differential protection of alternator

11. Stator Inter-turn Protection

12. Stator Inter-turn Protection