8.9 Protection systems for transformers
The protection of transformers is not simply a question of detecting faults within the winding, core
or tank. It is very often a question of how the transformer is integrated into the station or system.
The detection and clearing of transformer faults are intimately connected to the primary switching
that is available. There are too many variations of such switching arrangements to be all-inclusive
but a few typical examples will suffice to demonstrate the factors and logic involved.