15 Advantages of Cast Resin Dry-Type Transformers header image
  • RMM’s cast resin mini substations are optimally designed for underground application with a standard IP54 rating, an F1 fire class safety, and a low maintenance schedule.

  • Cast resin transformers only need air to cool and contains no oil. This eliminates most of the fire risk and maintenance usually associated with oil-cooled transformers. The explosion of a cast resin dry-type transformer under normal operation is highly unlikely and there is no risk of oil leaks that may cause pollution.

  • The smooth coil surface of the cast resin transformer eliminates heavy dirt build-up – even in the most extreme circumstances. The only recommended maintenance is a routine visual inspection by technical personnel, and a wipe down of the transformer as required.