Oil-immersed transformer, such as 50 kva single phase transformer, isolation distribution transformer, 11kv to 400v transformer and so on is really a very magical existence, it is not only the oil as the main means of insulation, but also ah, this oil It not only uses oil as the main insulation means, but also, the oil can be used as a cooling medium to help dissipate heat, like those oil immersed self-cooling ah, oil immersed air-cooled ah, oil immersed water-cooled ah, as well as forced oil circulation and so on the cooling method, are all its little trick it.
Then ah, it's those main parts are also different it, iron core ah, winding ah, these are its core part oh! And the fuel tank ah, it is like a small house, these important parts are installed in it, to protect them! And oil pillow ah, respirator ah, explosion-proof tube (that is, pressure relief valve ah) ah, these are silently guarding the safety of the transformer it. It is worth mentioning that ah, oil-immersed transformer silicon steel sheet layer, because long-term immersion in the transformer oil, so the oil can penetrate into it! And ah, this transformer oil and elasticity, can play a buffer role, so ah, oil-immersed transformer noise will be relatively small. But then, oil-immersed transformers also have its small shortcomings, it's regulator switch is in the tank, so when regulating ah, switch contact is not good in the outside is not visible it! If the contact is not on ah, that is equal to the circuit breaks ah; if the contact is poor ah, when the load is too large ah, it is easy to burn the switch it. However, as long as we use the oil-immersed transformer under the specified cooling conditions ah, or in accordance with the provisions of the nameplate to run Oh! But then, the maximum temperature of the top layer of oil is not more than 90 ℃! In order to prevent the transformer insulation aging ah, the top layer of oil temperature is generally not often more than 85 ℃ it! And ah, the alarm value are set at 80 ℃ , so we can find the problem in time!