Energy Efficient General Purpose Transformers

Energy efficient general purpose low voltage distribution transformers are rated for 600 volts and below. They are generally used for supplying appliance, lighting, heating, motorized machine and power loads from electrical distribution systems. For non-linear loads, all standard energy efficient distribution transformers have to be derated to allow for additional heat due to harmonic losses.

Energy Efficient K-Factor Transformers

Energy efficient k-factor low voltage distribution transformers are rated for 600 volts and below. The use of k-factor distribution transformers has become a popular means of addressing harmonic related overheating problems where electronic ballasts, drives, personal computers, telecommunications equipment, broadcasting equipment and other similar power electronics are found in high concentrations. These non-linear loads generate harmonic currents which can substantially increase transformer losses. The k-rated transformer has a more rugged design intended to prevent failure due to overheating.

Energy Efficient Harmonic Mitigating Transformers

Energy efficient harmonic mitigating low voltage distribution transformers are rated for 600 volts and below. Harmonic mitigating transformers are superior to k-rated and general purpose transformers in that they reduce voltage distortion (flat-topping) and power losses due to current harmonics created by single-phase, non-linear loads such as computer equipment. Secondary windings are arranged to cancel zero sequence fluxes and eliminate primary winding circulation currents. They treat zero sequence harmonics (3rd, 9th and 15th) within the secondary winding and 5th and 7th harmonics upstream with appropriate phase shifting.

About Hammond Power Solutions/HPS

Hammond Power Solutions Inc. (HPS) is the largest manufacturer of dry-type transformers in North America. They engineer and manufacture a wide range of custom transformers that are exported globally in electrical equipment and systems. HPS supports solid industries such as oil and gas, mining, steel, waste and water treatment, and wind power-generation.

HPS was established in 1917 and has continued to grow as the North American stand-alone leader for the design and manufacture of high quality custom electrical dry-type transformers and related engineered magnetic devices. The company is also a significant producer of standard products that are built to industry wide specifications. HPS excels at designing products that have very specific size and power constraints for many demanding applications. Having an extensive engineering resource, HPS offers the broadest range of electrical products in the industry and as a result, the company has grown in many diverse markets and provides services to many global leaders.

With multiple manufacturing facilities located throughout North America, they have expanded their manufacturing and product base to offer you the broadest range of both standard and special reactors, control, and dry-type transformers anywhere.

HPS has 11 Distribution centers located throughout Canada and United States, which allows them to ship standard stocked product to 90% of their customers for delivery within 48 hours of receiving a purchase order.

For more information please contact;

Karen Witzel


595 Southgate Drive

Guelph, Ontario N1G 3W6

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