Open Substation
 
Howard Industries liquid-filled substation transformers are designed for a wide range of commercial, industrial and utility applications. They are an ideal choice for manufacturing facilities, chemical plants, refineries, office buildings, schools, hospitals, restaurants, banks, Internet service facilities, and shopping centers. As a result of our exceptionally high standards for desing and manufacturing, our customers can be assured of substation transformer products that meet the most exacting requirements for safety, reliability, functionality, and economy. Four basic substation configurations are available. Primary open substations have cover mounted high-voltage and low-voltage bushings and have low-voltage ratings above 1.0 kV. Secondary open substations have cover mounted high-voltage and lowvoltage bushings and have low-voltage ratings of 1.0 kV or less. Primary unit substations have sidewall mounted high-voltage or low-voltage bushings (or both), have low-voltage ratings above 1.0 kV, and can be supplied with mounting provisions for mechanical and electrical interconnection with high-voltage and low-voltage switchgear. Secondary unit substations have sidewall mounted high-voltage or lowvoltage bushings (or both), have low-voltage ratings of 1.0 kV or less, and can be supplied with mounting provisions for mechanical and electrical interconnection with high-voltage and low-voltage switchgear. All of these substation configurations can be designed for indoor or outdoor use. Our experienced design team can provide customized designs for new applications or for jobs requiring replacement of existing transformer equipment. A wide range of features and accessories are available to satisfy almost any requirement.
 
Distribution Substation Transformer Installation, Operation, And Maintenance Manual
KVA Ratings (65° C Rise, Self Cooled, OA):225, 300, 500, 750, 1000, 1500, 2000, 2500, 3000, 3500, 5000, 7500, 10000
High-Voltage Ratings (Delta or Y):2400 through 69000 (through 350 kV BIL)
(Some high-voltage and kVA combinations are not available. Contact factory for details.)
Low-Voltage Ratings (Delta or Y):120 through 8400 or 14400Y (through 110 kV BIL)
(Some low-voltage ratings are not available for all kVA sizes. Some low-voltage and high-voltage rating combinations are not available. Contact factory for details.)



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