The IEC 60726 standard for dry-type power transformers was officially withdrawn and replaced by the IEC 60076-11 standard. If you are looking for current technical specifications or compliance guides, you should reference IEC 60076-11:2018, which is the most recent edition. Essential Summary of IEC 60726 (Withdrawn)
Scope: Originally covered dry-type power transformers (including auto-transformers) with a highest voltage for equipment up to and including 36 kV.
Key Exclusions: Did not cover instrument transformers, starting transformers, or testing transformers.
Successor Standard: The requirements were integrated into the broader IEC 60076 series as Part 11 to align with general power transformer standards. Current Standard: IEC 60076-11:2018
For modern engineering and procurement, use the updated guidelines found in IEC 60076-11: IEC 60076-11:2018
IEC 60726 is the legacy international standard for dry-type power transformers, originally published in 1982. While it established the foundational technical requirements for these units, it was officially withdrawn on May 27, 2004, and replaced by IEC 60076-11. Quick Summary of IEC 60726
Scope: Applies to dry-type power transformers (including auto-transformers) with system voltages up to 36 kV.
Excluded Items: Does not cover instrument transformers (IEC 60185/60186) or static converter transformers. iec 60726 dry type power transformers pdf download
Key Replaced By: IEC 60076-11:2004, which is part of the larger "Power Transformers" series. Core Standard Sections
For those reviewing historical or existing equipment built to this standard, it is divided into the following primary sections: General: Definitions and application limits. Rating: Standard power and voltage ratings.
Cooling & Temperature: Methods (e.g., AN for natural air, AF for forced air) and permissible temperature rise limits (Class F, H, etc.).
Insulation Levels: Dielectric requirements and lightning impulse withstand voltages.
Tests: Divided into Routine (winding resistance, ratio), Type (temperature rise), and Special (partial discharge, sound level). Enclosures: Degrees of protection (IP codes). PDF Download & Access
Since IEC 60726 is a withdrawn standard, modern engineering projects should use IEC 60076-11:2018. For historical reference, you can find the original document through the following:
Official Source: The IEC Webstore still lists the withdrawn document for archival purchase. The IEC 60726 standard for dry-type power transformers
Standard Resellers: Platforms like iTeh Standards offer PDF versions for digital delivery.
Public Repositories: Unofficial copies and summaries are often found on document sharing sites like Scribd or Academia.edu. Comparison: IEC 60726 vs. IEC 60076-11 IEC 60726 Dry Type Power Transmformers | PDF - Scribd
IEC 60726 Dry Type Power Transmformers - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
standard for dry-type power transformers was officially withdrawn and replaced IEC 60076-11 Current Standards Status
If you are looking for the most current technical requirements, you should refer to the IEC 60076 series , specifically Replacement Standard: IEC 60076-11:2018
applies to dry-type power transformers with equipment voltages up to 72.5 kV. Historical Reference: IEC 60726:1982
remains available as a historical document through official channels for those managing legacy equipment. Where to Legally Download Notify user: This standard is withdrawn
IEC standards are copyrighted and typically require a fee. You can find them at: IEC 60726:1982
The standard mandates specific dielectric withstand tests:
If you're building this into a website or app:
If you tell me what format you need this feature for (e.g., a web component, Word doc, PDF form, or script), I can generate the actual code or template for you.
Help engineers, students, and procurement specialists find, understand, and legally obtain IEC 60726 (Dry-type power transformers) and related standards.
Do not rely solely on a datasheet. If a supplier claims compliance, request the following evidence:
