transformer cooling in desert area

Transformers are deisgned for a specified ambient temperature. Transformers with ONAN cooling have been operating in desert areas for a long time. Please be more elaborate in your question, indicate the design ambient temp, the sun radiation temp etc. for proper designing of the transformer.

For avoiding sun radiation temp the transformers are housed in a bay provided with roof.

good answer

Hello "Guest"

It is a common assumption that deserts are always hot, and thus a transformer in a desert requires cooling.

There are some deserts where the temperature rarely gets above 0 degrees Celsius.

You can now think where those deserts are.

Kind Regards....

hi Mr. Sparkstation,

i have read your answers to some questions. Very nice. i liked them very much.

Very little information. You want a serious answer put a serious question. What desert has to do with this? refer to sparkstation reply.

Wangito.

For avoiding high temperature, besides protection from direct sunlight you should apply a modern dielectic oil different to the mineral based. Modern transformer oils are fire resistant up to 300 degrees C (it never gets to that temperature in the AZ desert even with direct sunlight) and also biodegradable, and best dielectric characteristics with good heat dissipation and protection of insulating materials.

We have been switching oils to these new ones in tropical climates where they might get to 160-170 C in cases of overloads and environment heat, and had no problem where otherwise mineral oils would take fire.