What is the difference between differential protection of transformer and generator?
Answers
There is no difference.
Differential protection is differential protection.
CTs around the 3 outputs of the generator are matched with CTs on each leg of the star point of the generator.
likewise each input leg has a CT on each input phase and a CT on its output phase, with the same windings ratio as the primary to secondary transformer windings......
Any winding short either to ground or winding to winding will result in a mismatch of currents causing the differential relay to operate.
Explanation:
There is no difference. Differential protection is differential protection. ... Any internal fault inside the stator winding is cleared by mainly differential protection scheme of the generator. The differential protection is provided in the generator by using longitudinal differential relay.