Medium And Small Power Transformers are electrical devices utilized for converting electrical power from one voltage level to another. These types of transformers play a very important role in electrical power transmission as well as distribution systems. The Medium And Small Power Transformers are categorized based on their power rating, and two such classifications are small power transformers and medium power transformers. Small Power Transformers normally have power ratings of less than 500 kVA. They are utilized in a number of applications, like lighting, heating, and air conditioning systems. Also, they are utilized to power small industrial equipment, like pumps and motors. Medium Power Transformers have power ratings between 500kVA-10MVA, and are utilized in power generation, distribution, and transmission.