A Distribution Transformer is a crucial component in electrical power distribution systems. Its primary function is to step down the voltage from the higher levels used in distribution lines (typically 11 kV, 33 kV, or occasionally higher) to the much lower voltages required by end consumers (like 400/230 V, 240/120 V, etc.) for safe use in homes, businesses, and industries.
The power transformer is the "heart" of the power system，which is the unsung heroes of electrical infrastructure, enabling efficient transmission of electricity across vast distances by stepping up voltage for reduced losses (e.g., 11kV → 400kV) and stepping it down for distribution (e.g., 220kV → 33kV). Unlike distribution transformers, which serve end users, power transformers handle bulk power transfer in generation plants, substations, and industrial grids.
Pole-type transformers are critical components in overhead power distribution systems, enabling efficient voltage conversion for safe electricity delivery to end users. Their compact, elevated design minimizes land use while simplifying installation and maintenance in urban/rural grid networks.
Transmission lines form the backbone of electricity networks, enabling long-distance, high-voltage energy transfer with minimized losses while ensuring grid stability and reliable power supply.They facilitate the integration of distributed renewable energy sources (e.g., wind/solar) into grids, supporting cross-regional clean energy distribution and global decarbonization goals.
A glass insulator is a device made of glass, historically used on telephone, telegraph, and electrical power lines to electrically isolate the wire (conductor) from the supporting structure (pole, tower, or crossarm pin). Its primary job is to prevent electric current from flowing down the pole and into the ground, ensuring it stays within the wire.
Pad-mounted transformers have become indispensable components in contemporary electrical distribution networks, offering safe and efficient voltage transformation for underground power systems. These ground-level units feature advanced components such as transformer bushings and epoxy bushings, which enhance their reliability and performance. This article examines the key applications, technological advantages, and critical components of pad-mounted transformers, with special focus on bushing technologies.