ABB dry-type transformer range

ABB has released three dry-type transformers. The improved EcoDry low-loss transformer, TriDry triangular transformer and PoleDry transformer provide users improved efficiency, safety and eco-compatibility.

The PoleDry transformer is a dry-type (no fluid inside) transformer designed for pole-mounted applications. The transformer is manufactured using Vacuum Cast Coil (VCC) technology ensuring the transformer is non-flammable and self-extinguishing.

The TriDry adopts the latest core technology, using a triangular construction for its core. Along with the traditional advantages offered by a dry-type transformer, the symmetrical construction ensures that no-load losses, footprint, weight, noise emissions, inrush currents, harmonic content and stray magnetic fields are all reduced. This compact transformer range extends from 100 to 2500 kVA.

EcoDry dry-type distribution transformers are ‘green’ transformers which provide the inherent benefits of a dry-type transformer, including fire safety and environmental friendliness (no fluid leakage) with ultrahigh efficiencies suitable for renewable energy applications.

The transformers incorporate amorphous-metal core lamination which is said to reduce transformer losses up to 70%. To match individual user applications, there are different types of EcoDry: the EcoDryBasic dry-type transformer for distribution transformers with a low average load and the EcoDry99Plus for applications involving a high to very high loading.