Difference between power and distribution transformer

Question

Accepted Answer

Power transformers are used to step up or step down voltage for transmission and distribution transformers are used to distribute power to end-users.

Power transformers are typically used in power generation plants and substations.
Distribution transformers are used to supply power to residential, commercial, and industrial areas.
Power transformers have higher voltage ratings and are designed for long-distance transmission.
Distribution transformers have lower voltage ratings and are located closer to the end-users.
Power transformers are larger in size and have higher power capacities.
Distribution transformers are smaller in size and have lower power capacities.
Power transformers have higher efficiency and lower losses.
Distribution transformers have lower efficiency and higher losses due to the shorter distance of power transmission.
Power transformers are usually oil-filled, while distribution transformers can be oil-filled or dry-type.
Power transformers may have multiple windings for different voltage levels, while distribution transformers usually have a single winding.

Accepted Answer

The main difference between them is power transformer is used for step up the voltage where distribution transformer is used for step down.

Popular interview questions of Senior Electrical Design Engineer