The appearance of oil-immersed transformer is obviously different from that of dry transformer

The obvious difference between oil-immersed transformer and dry transformer is that there is no “oil”, and because the oil is liquid, with liquidity, oil-immersed transformer must have the outer shell, the inner shell is transformer oil, the coil of the transformer is soaked in oil, and the coil of the transformer can not be seen from the outside; And dry transformer without oil, do not use the shell, can directly see the transformer coil; There is also a characteristic of oil-immersed transformer with oil pillow, internal storage of transformer oil, but now the new oil-immersed transformer also has transformer production without oil pillow;

Oil-immersed transformer in order to facilitate heat dissipation, that is, in order to facilitate the flow of internal insulation oil heat dissipation, in the external design of the radiator, just like the radiator, and the dry transformer does not have this radiator, heat dissipation by the transformer coil fan, the fan is a bit like the indoor machine of household air conditioning;

Oil-immersed transformer due to the need of fire protection, generally installed in a separate transformer room or outdoor, and dry transformer must be installed indoors, generally installed in the low-voltage distribution room, and low-voltage distribution cabinet installed side by side