: New standards require better management of maximum hot-spot temperatures to prevent overheating.
Defined how encapsulated windings (often using epoxy resin) should resist moisture, dust, and corrosion. Exclusions: iec 60726 dry type power transformers pdf download
applies to dry-type power transformers with equipment voltages up to 72.5 kV. Historical Reference: IEC 60726:1982 : New standards require better management of maximum
The original IEC 60726 (1982 edition) established requirements for dry-type power transformers (including auto-transformers) with equipment voltages up to and including . Key technical features defined by the standard included: Cooling Methods: Specifications for (Air Natural) and (Air Forced) cooling systems. Insulation Classes: iec 60726 dry type power transformers pdf download