Energy efficient transformers are therefore an important means to reduce transmission and distribution loss. With the improvement of electrical steel (silicon steel) properties, the losses of a transformer in 2010 can be half that of a similar transformer in the 1970s. With new magnetic materials, it is possible to achieve even higher efficiency. The amorphous metal transformer is a modern example.
Minimum efficiencies have been established for each size of transformer, and extensive design, testing and manufacturing time has been spent to ensure each transformer meets or exceeds these efficiencies.
The Square D Energy Efficient transformer offering includes all of the popular options including low temperature rise, 115 °C and 80 °C, and aluminum or copper windings.
These transformers are part of a complete line of Lean Power products from Schneider Electric
The Environmental Protection Agency (EPA) determined 61 billion kWH of electricity was wasted each year in transformer losses.
This new line of products has the following features included in the design:
Smaller total area used with 3" clearance from ventilated openings instead of 6" Decreased weight
Sized to handle lug kits coordinating with other Square D® products, increasing ease of installation when used with other Square D equipment NEMA two-hole terminals allow back-to-back lug mounting for flexibility in feeding multiple panels and extended runs
200 percent neutral
Increased wiring compartments provide bending radius for 250 percent primary cables and multiple feeds on secondary cables