the transformers suitable for toughe

 

This covering makes the transformers su find itable for tougher environmental conditions. Due to the limitation in the cooling aspect, the maximum voltage in dry type transformers are limited up to 35kV. 

Dry Type Transformers vs. Oil Type Transformers

·         Maintenance

Oil typeelectrical transformers require greater maintenance processes as compared to dry type transforme house rs. Th v e mineral oil present has to be sampled and tested for contaminants annually as part of preventive maintenance procedures. 

 

Apart from this, oil filtrat v ion should also be done at least once a year. On the other hand, dry type transf business ormers are resistant to chemical contaminants, thus reducing the need for carrying out maintenance procedures.

·         Operating Costs

Oil type transformers have higher energy efficiency that helps in increasing their lifespan, thus resulting in limited operational costs. Compared to oil type transformers, dry type transformers are less efficient due to their restricted cooling capacity, leading to higher operating costs. 

·         Efficiency

As mentioned earlier, dry type electrical transformers are less efficient when compared to oil type transformers. This is because they are larger units and limited in voltage, making them more prone to overheating. 

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