IEC IEEE 60076-16-2018 PDF

Full title and description

IEC/IEEE 60076-16:2018 — Power transformers — Part 16: Transformers for wind turbine applications. Joint IEC and IEEE international standard that specifies particular requirements, design guidance and test provisions for dry-type and liquid‑immersed step‑up transformers used to connect a wind turbine generator to the wind farm power collection system or to an adjacent distribution network (highest winding voltage up to and including 72.5 kV).

Abstract

This second edition (2018) of IEC/IEEE 60076-16 updates the 2011 edition with technical revisions addressing the electrical and mechanical stresses, thermal conditions and testing needs unique to wind turbine step‑up transformers. It introduces a relationship between transformer rated power and generator output current, adds thermal correction for the effective cooling medium, and strengthens the required testing regime so transformers are suitable for the harsh electrical environment typical of wind turbine generator installations.

General information

• Status: Active international standard (IEC/IEEE joint publication).
• Publication date: 28 September 2018.
• Publisher: International Electrotechnical Commission (IEC) in cooperation with IEEE Standards Association (joint IEC/IEEE publication).
• ICS / categories: 27.180 (Wind turbine energy systems); 29.180 (Transformers. Reactors).
• Edition / version: Edition 2.0 (2018), cancels and replaces IEC 60076-16:2011.
• Number of pages: 21 (official standard document; redline/comparative versions are longer).

Scope

Applies to dry‑type and liquid‑immersed transformers for wind turbine step‑up applications having a winding with highest voltage for equipment up to and including 72.5 kV. The standard covers the transformer that connects an individual wind turbine generator to the wind farm collection system or to an adjacent distribution network. It does not apply to transformers used to connect several wind turbines together for distribution or transmission network interconnection. The document supplements the general IEC 60076/IEEE C57 series by specifying requirements and tests relevant to the electrical, thermal and mechanical stresses and environmental conditions encountered in wind turbine installations.

Key topics and requirements

• Applicability to dry‑type and liquid‑immersed step‑up transformers for individual wind turbines (highest winding voltage ≤ 72.5 kV).
• Relationship between transformer rated power and the associated generator output current for correct transformer selection and rating.
• Thermal considerations, including thermal correction of the effective cooling medium to account for site and operational conditions.
• Strengthened testing regime (type and routine tests) to verify dielectric, thermal and mechanical performance under the harsh electrical environment typical of wind turbines.
• Requirements and guidance on insulation coordination, temperature‑rise limits, short‑circuit mechanical strength, and dielectric testing appropriate to the application.
• Considerations for harmonics, non‑sinusoidal currents and their thermal/mechanical effects on wind turbine transformers.
• Mechanical design factors such as vibration and mounting, transport and site handling for turbine nacelle or tower installation.
• Specification and documentation recommendations for purchasers and manufacturers to ensure interchangeability and fitness for purpose.

Typical use and users

This standard is used by transformer manufacturers, wind‑turbine OEMs, wind farm developers, electrical design engineers, utilities and grid connection engineers, testing and certification laboratories, and procurement/specification teams. It guides design, testing, acceptance and commissioning of step‑up transformers intended for installation on or adjacent to wind turbines.

Related standards

IEC/IEEE 60076-16 is part of the IEC 60076 / IEEE C57 family on power transformers and is intended to be used together with the relevant general parts of that series (for example IEC 60076‑1 General requirements, plus parts covering insulation, temperature rise, short‑circuit, dielectric tests and mechanical tests). It is also used alongside applicable wind‑energy standards and grid‑connection requirements that affect transformer performance and testing.

Keywords

power transformer, wind turbine, step‑up transformer, IEC 60076, IEEE, temperature rise, testing regime, thermal correction, generator output current, 72.5 kV, insulation coordination, harmonics, vibration

FAQ

Q: What is this standard?

A: IEC/IEEE 60076-16:2018 is a joint international standard specifying requirements for step‑up transformers used to connect individual wind turbine generators to a wind farm collection system or to an adjacent distribution network.

Q: What does it cover?

A: It covers application‑specific requirements for dry‑type and liquid‑immersed wind turbine step‑up transformers (highest winding voltage up to and including 72.5 kV), including design considerations, thermal corrections, strengthened testing provisions, and the relationship between transformer ratings and generator output current. It supplements the general IEC 60076 / IEEE C57 transformer parts.

Q: Who typically uses it?

A: Transformer manufacturers, wind turbine OEMs, wind farm developers, grid connection engineers, testing and certification laboratories, and procurement/specification professionals use this standard to design, specify, test and accept wind turbine transformers.

Q: Is it current or superseded?

A: The 2018 edition (Edition 2.0) supersedes the 2011 edition. As published on 28 September 2018, it is the current edition replacing IEC 60076-16:2011. Users should check for any subsequent amendments or newer editions before finalizing specifications.

Q: Is it part of a series?

A: Yes. It is Part 16 of the IEC 60076 / IEEE C57 series on power transformers and is intended to be used together with the other parts (general requirements, temperature rise, testing methods, short‑circuit, insulation, etc.).

Q: What are the key keywords?

A: Key keywords include: wind turbine transformer, step‑up transformer, power transformer, IEC 60076, IEEE, thermal correction, testing regime, 72.5 kV, harmonics, insulation coordination.