Distribution Transformer

Distribution transformer is an electrical transformer that is used to carry electrical energy from a primary distribution circuit to a secondary distribution circuit. This can also be used to transfer current within a secondary distribution circuit, or to the service circuit of a consumer. These distribution transformers minimize the voltage supply of the primary circuit to the amount of voltage desired by the consumer. The amount of this voltage keeps on changing and can be different for commercial consumers, residential consumers and light industry consumers.

Salient Features

• Distribution transformers can be single-phase or three-phase.
• Usually, single phase transformers are used for residential applications.
• The three-phase transformers with a pad installed on them are used with an underground primary circuit, whereas three single-phase pole type transformers are used for overhead services.
• There are some distribution transformers, which can also offer network services. They are usually mounted in an underground vault. In this type of transformers, power is supplied to the consumers through underground cables.

One of the advantages of distribution transformer is that they have excellent capacity to withstand overloads.

Uses & Applications
Distribution transformers are widely used in various fields. Some of its common applications include:

• Telecommunications
• Sensitive electrical or electronic equipments
• Data processing equipment
• Transmission lines
• Radar systems
• Photocopying machines
• Tool machines
• Test control and measuring systems
• Safety alarm and lighting plants