Potted Transformers suit indoor and outdoor applications.

Press Release Summary:

HPS Fortress(TM) Series is supplied in NEMA 3R enclosure potted/encapsulated with electrical-grade silica sand and resin compounds that completely enclose core and coil to seal out moisture and airborne contaminants. While key hole mounting slots facilitate installation, rear and side entry conduit knockouts promote wiring compartment access. Series includes 9 standard single-phase groups from 50 VA to 37.5 kVA (50 and 60 Hz) and 8 standard 3-phase groups from 2-75 kVA (60 Hz).

Original Press Release:

HPS Fortress(TM) Series of Potted Transformers Feature Compact, Efficient Design for Easy Installation

HPS Develops New Series of Economical Commercial Potted Transformers

BARABOO, WI (June 25, 2009) -- Hammond Power Solutions (HPS), the leading manufacturer of dry-type electrical transformers in North America, has developed a cost-effective general purpose potted encapsulated transformer line for commercial applications. Designated the HPS Fortress(TM) Series, these transformers feature a NEMA 3R rated enclosure, potted encapsulated with electrical grade silica sand and resin compounds that completely enclose the core and coil to seal out moisture and airborne contaminants while eliminating corrosion and deterioration. The HPS Fortress Series enclosure Series design also meets ANSI standards for indoor and outdoor applications, making it ideal for schools, shopping centers, entertainment venues, and office buildings.

Featuring a light, compact and efficient design that enables easy installation via key hole mounting slots and and is supplied wall and floor with an easy to follow mounting template, the HPS Fortress Series has rear and side entry conduit knockouts for easy access into the roomy wiring compartment.

"Built upon our existing innovative transformer technology, the HPS Fortress Series transformers is an encapsulated transformer product family that enables us to address a new market and fulfill customer requests for an economic general purpose potted encapsulated transformer," said Ken Hermann, HPS Marketing Manager. "By developing this encapsulated design, we are able to meet the requirements of the market at a more economical price than more fully featured industrial designs."

The HPS Fortress Series transformers are available in nine standard single-phase groups and eight standard three-phase voltage groups. The single-phase modules designs have a voltage are available range of from 50VA to 37.5kKVA with a frequency of 50 Hz and 60 Hz. Single-phase modules and feature a standard shield for units 750VA and up. Wall mounting is standard on units up to 25kVA and is available for 37.5kVA units.

The three-phase modules designs have a voltage range of are available from 2kVA to 75kVA with a frequency of 60Hz. Three-phase modules and feature a standard shield on all units. Wall mounting is standard for units up to 9kVA and optional for the 15kVA, 30kVA and 45kVA units.

As with all HPS transformer products, the HPS Fortress Series is available in custom voltages, frequency, shielding and mounting options to meet application requirements.

HPS transformers are comprised of the highest quality cores that contain non-aging fully processed silicon steel laminations precision cut to close tolerances to eliminate burrs and interleaved to improve performance. Coils are precision wound to ensure electrical balance to minimize axial short-circuit forces. HPS utilizes superior insulation materials that meet UL standards to maximize temperature ratings. All HPS transformers are tested to ensure product quality and reliability.

Pricing for the HPS Fortress Series transformers start at under $100 with a lead time of stock to three weeks. For more information about HPS Fortress Series potted encapsulsated transformers, contact HPS at 1100 Lake Street, Baraboo, WI, 53913-2866; call (608) 356-3921; fax (608) 355-7623. For inquires in Canada contact: 595 Southgate Drive, Guelph, Ontario, Canada N1G 3W6; call (519) 822-2441; fax (519) 822-9701. e-mail marketing@hammondpowersolutions.com.

About HPS
Established in 1917, Hammond Power Solutions (HPS) is the leading manufacturer of dry-type electrical transformers in North America. With more than 90 years of engineering expertise, HPS offers high-quality standard and custom dry-type transformers and related engineered magnetic devices. The implementation of flexible manufacturing processes for its standard, special, or custom products enables HPS to quickly respond to customers' needs. HPS' ability to design these products for a wide range of demanding applications that require specific size and power performance characteristics is unique in the industry.

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