Oil-immersed transformers are marked by four alphabetical codes for their cooling mode.

Release time:

2024-01-08

Source:


N-The oil flow flowing through the cooling equipment and the winding is a natural thermal convection cycle;

F-The oil flow in the cooling equipment is forced circulation, and the oil flow flowing through the winding is thermal convection circulation;

D-The oil flow in the cooling equipment is forced to circulate, and (at least) the oil flow in the main winding is forced to circulate.