Distribution Transformer
A Distribution Transformer is a crucial electrical device used in power distribution networks to step down high-voltage electricity from the transmission system to a lower voltage suitable for domestic, commercial, and industrial use. Unlike power transformers, which operate at high voltages and handle bulk power, distribution transformers are designed for lower capacity and localized distribution.
Typically, distribution transformers operate at voltage levels ranging from 11 kV or 33 kV on the primary side to 230V or 400V on the secondary side, depending on regional standards. They are widely used in residential areas, commercial complexes, and industrial units to ensure safe and reliable electricity supply. These transformers are usually of two types: pole-mounted for overhead lines and ground-mounted for underground networks.
Key features include compact design, high efficiency, low losses, and robust insulation to withstand varying environmental conditions. They often use oil or dry-type insulation to enhance cooling and durability. Maintenance is generally minimal, but periodic inspection ensures longevity and safety.
In essence, distribution transformers play a vital role in the electrical power system by enabling the safe delivery of electricity from substations to end-users, supporting daily life, industrial operations, and economic activities, while maintaining voltage stability and efficient energy utilization.