Energy Efficient Transformers

The Environmental Protection Agency (EPA) determined 61 billion kWH of electricity was wasted each year in transformer losses. This finding led the 1992 Energy Act to mandate the Department of Energy (DOE) to evaluate distribution transformers and begin working closely with National Electrical Manufacturing Association (NEMA). NEMA recommended transformer efficiency levels in 1996 – and launched standard TP-1-1996.

Because the guidelines for reduced energy consumption did not reduce wasted transformer loss – Public Law 109-58, 2005 Energy Act – declared the following regarding low voltage dry-type distribution transformers: “The efficiency of a low voltage dry-type distribution transformer manufactured on or after January 1, 2007, shall be the Class I Efficiency Levels for distribution transformers specified in table 4–2 of the ‘Guide for Determining Energy Efficiency for Distribution Transformers’ Published by the National Electrical Manufacturers Association (NEMA TP–1–2002).” (Also see Energy Conservation Program for Commercial Equipment: Distribution Transfomers Energy Conservation Standards: Final Rule 1.6MBpdf.)

Schneider Electric introduced the first TP1-compliant low voltage dry-type distribution transformers in December 1998. With the 2005 Energy Act, Schneider Electric has expanded its offering of TP1-compliant products by launching a new line of TP1 products.

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

As the world leader in automation and electricity management, Schneider Electric can help you optimize your energy costs while enhancing your facility's performance, reliability, safety and ease of use. Our package of solutions includes energy conservation, management and monitoring products, systems and services. All designed to help reduce your facility's energy consumption. Learn more at Square D Lean Tools.