ALSTOM Grid

The Drycol Breather (A) operates by drawing moist, warm air (B) from an air space or from outside via the air inlet tube (C), and returning it to the conservator (D) as cold dry air. A series of thermoelectric modules are used to alternately cool and heat the units vertical central duct (E) in an automatic continuously repeated cycle, extracting moisture as frost and ice, and melting it to escape via a drain tube (F).



  • The Transformer Services Department of ALSTOM T&D’s service business can provide specialist technica
  • Type A and type B Drycol Breathers
  • The Company’s Service Engineers have working experience on tapchangers of all manufacturers and are
  • We have extensive experience in the movement and relocation and uprating of all sizes of transformer