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GB/T 32077-2025Wind energy generation systems - Pitch system of wind turbines (English PDF)

风能发电系统风力发电机组变桨距系统

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2025

Implementation date

November 1, 2025

Scope

GB/T 32077-2025 is the English-translated version of 风能发电系统风力发电机组变桨距系统.

GB/T 32077-2025 is the Chinese standard "Wind energy generation systems - Pitch system of wind turbines".

Its scope clause reads: This document specifies the working conditions, technical requirements, test conditions and performance of the variable pitch system of a grid-connected wind turbine generator set (hereinafter referred to as the variable pitch system).

Methods, inspection rules, deliverable requirements, and installation and maintenance. This document is applicable to the variable pitch system of grid-connected horizontal axis wind turbines. The variable pitch drive mode is hydraulic drive or electric drive. drive.

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Document preview — GB/T 32077-2025

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11
Replacing: GB/T 32077-2015

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Working conditions
4.1 General working conditions
4.2 Special conditions
4.3 Other conditions
5 Technical requirements
5.1 General requirements
5.2 Functional Requirements
5.3 Performance requirements
5.4 Requirements for main components
6 Test methods
6.1 Test conditions
6.2 Functional test
6.3 Performance test
6.4 Main component test
7 Inspection Rules
7.1 Types of product inspection
7.2 Type inspection
7.3 Factory Inspection
8 Deliverables Requirements
8.1 Marking, labelling and instructions for use
8.2 Packaging, transportation and storage
9 Installation and Maintenance
9.1 Installation
9.2 Maintenance

1 Scope

This document specifies the working conditions, technical requirements, test conditions and performance of the variable pitch system of a grid-connected wind turbine generator set (hereinafter referred to as the variable pitch system).

Methods, inspection rules, deliverable requirements, and installation and maintenance.

This document is applicable to the variable pitch system of grid-connected horizontal axis wind turbines. The variable pitch drive mode is hydraulic drive or electric drive.

drive.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 191 Pictorial markings for packaging, storage and transportation

GB/T 1029 Test methods for three-phase synchronous motors

GB/T 1032 Test methods for three-phase asynchronous motors

GB/T 1311 DC motor test methods

GB/T 2422 Environmental testing - Guidelines for the preparation of test methods - Terms and definitions

GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2.Test methods Test A. Low temperature

GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2.Test methods Test B. High temperature

GB/T 2423.3-2016 Environmental testing Part 2.Test method Test Cab. Steady state damp heat test

GB/T 2423.4-2008 Environmental testing for electric and electronic products Part 2.Test methods Test Db. Cyclic damp heat (12h

12h cycle)

GB/T 2900.1 Basic terms of electrical engineering

GB/T 2900.53 Electrical terminology Wind turbine generator system

GB/T 3222.2 Acoustic environmental noise description, measurement and evaluation Part 2.Determination of sound pressure level

GB/T 3480 (all parts) Calculation of load capacity of spur and helical gears

GB/T 3482-2008 Lightning test methods for electronic equipment

GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components

GB/T 4208 Enclosure protection grade (IP code)

GB/T 4365 Electrical terminology - Electromagnetic compatibility

GB/T 5226.1 Electrical safety of machinery Electrical equipment of machinery Part 1.General technical requirements

GB/T 6388 Shipping and receiving marks for transport packaging

GB/T 7251.1-2023 Low-voltage switchgear and controlgear Part 1.General

GB/T 7935 General technical requirements for hydraulic components

GB/T 9969 General principles for instructions for use of industrial products

GB/T 11287-2000 Electrical relays Part 21.Vibration, shock, impact and earthquake of measuring relays and protective devices

Test Part 1.Vibration Test (Sine)

GB/T 12113 Measurement methods for contact current and protective conductor current

GB/T 25387.1 | GB/T 25388.1 | GB/T 25389.1 | GB/T 47557 | GB/T 47555 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 26 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

Editions of GB/T 32077

Edition	Title	Revision	Status
GB/T 32077-2025	Wind energy generation systems - Pitch system of wind turbines	current edition	Current
GB/T 32077-2015	Wind turbine generator system -- Pitch system	previous edition	In force

This page sells the current edition, GB/T 32077-2025. Earlier editions are listed for reference only.

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