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27.180 Wind turbine energy systems
New standards
IEC 61400-40:2026
Wind energy generation systems - Part 40: Electromagnetic compatibility (EMC) - Requirements and test methods
Scope: IEC 61400-40:2026 provides the EMC requirements and test methods that apply to the individual wind turbine and all the sub systems which are part of the wind turbine.
The current document applies to measurements on individual wind turbines and not multiple wind turbines.
This document defines the requirements and test methods for the verification of the wind turbine performance against radiated emissions and the immunity of their components against conducted and radiated phenomena. This document is applicable to onshore and offshore wind turbines.
The current document applies to measurements on individual wind turbines and not multiple wind turbines.
This document defines the requirements and test methods for the verification of the wind turbine performance against radiated emissions and the immunity of their components against conducted and radiated phenomena. This document is applicable to onshore and offshore wind turbines.
Base documents:
IEC TR 61400-4-2:2026
Wind energy generation systems - Part 4-2: Lubrication of drivetrain components in wind turbines
Scope: IEC TR 61400-4-2:2026 provides non-binding information regarding the lubricant, lubrication system layout, and performance for wind turbine gearboxes. This document covers oil lubricated gearboxes. Additionally, guidance for selected lubricant parameters as well as for monitoring and maintaining lubricant characteristics is offered. This document provides a common reference for lubrication related matters for wind turbine drive trains. ISO/TR 18792 provides information for lubrication of industrial gearboxes. Some information is similar or identical to this document.
This document is useful to wind turbine system and component designers, wind turbine manufacturers, and owners/operators to ensure that lubricant related matters are addressed in the gearbox design and operation phases.
This current document covers oil lubricated gearboxes and is developed based on experience with predominantly gearboxes with rolling bearings. It can be applied to gearboxes with plain bearings but possibly does not yet address all aspects of this technology. The document structure is prepared to receive further content related to other components in the wind turbine drivetrain and include additional types of lubricants.
This document is useful to wind turbine system and component designers, wind turbine manufacturers, and owners/operators to ensure that lubricant related matters are addressed in the gearbox design and operation phases.
This current document covers oil lubricated gearboxes and is developed based on experience with predominantly gearboxes with rolling bearings. It can be applied to gearboxes with plain bearings but possibly does not yet address all aspects of this technology. The document structure is prepared to receive further content related to other components in the wind turbine drivetrain and include additional types of lubricants.
Base documents: