Dongan - Three Phase General Purpose Transformers Brochure

Dongan offers a full complement of three phase ventilated transformers, from 3 kVA to 300 kVA. Encapsulated three phase transformers are available from 3 kVA through 9 kVA, and ventilated products are available for 15 kVA transformers and up. Enclosures are NEMA Type 3R as standard, which eliminates the need for a costly weather shield. Some exceptions apply at the smallest kVA; these exceptions are indicated in our catalog. Dongan’s three phase general purpose products have an electrostatic shield between the primary and secondary for transient noise reduction. Insulation systems are 200°C or 220°C, depending upon the series of transformer.