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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