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GB/T 45854-2025Wind energy generation systems — Hydraulic system of wind turbines (English PDF)

风能发电系统风力发电机组液压系统

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

November 1, 2025

Scope

GB/T 45854-2025 is the English-translated version of 风能发电系统风力发电机组液压系统.

GB/T 45854-2025 is the Chinese national standard covering the hydraulic system that drives the brake, the rotor lock pin and the pitch mechanism of a wind turbine — the design and assembly requirements, the twenty components from motor pump unit and accumulator to servo and proportional valves, seals, rotary joint and hose assemblies, the pressure holding, anti-corrosion, low temperature, vibration and durability performance, the test methods, and the factory and type inspection. First edition, under the China Machinery Industry Federation. In force from 1 November 2025. Issued on 1 August 2025, it has been in force since 1 November 2025.

Document preview — GB/T 45854-2025

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions2
4 Hydraulic system technical requirements3
4.1 Basic Requirements3
4.2 Design Requirements3
4.3 Assembly requirements4
5 Technical requirements for hydraulic components and assemblies4
5.1 Motor pump unit4
5.2 Fuel tank5
5.3 Valve block (oil block)5
5.4 Solenoid valve5
5.5 Relief valve5
5.6 Throttle valve6
5.7 Check valve6
5.8 Pressure reducing valve6
5.9 Servo Directional Valve6
5.10 Proportional directional valve6
5.11 Pressure Sensor7
5.12 Pressure switch7
5.13 Seals7
5.14 Accumulator7
5.15 Rotary joint7
5.16 Hydraulic oil7
5.17 Junction Box7
5.18 Hand pump7
5.19 Hose assembly8
5.20 Hard tube assembly8
6 Performance Requirements8
6.1 Appearance Requirements8
6.2 Pressure Holding Performance8
6.3 Voltage Withstand Performance8
6.4 Anti-corrosion performance8
6.5 Low temperature performance8
6.6 Low pressure performance8
6.7 Durability9
6.8 Vibration resistance9
6.9 Impact and Crash Performance9
6.10 Anti-interference performance9
7 Test Method10
7.1 Appearance Inspection10
7.2 Pressure holding test10
7.3 Fuel tank air tightness test10
7.4 Motor Test10
7.5 Anti-corrosion performance test10
7.6 Low temperature performance test10
7.7 Low pressure test11
7.8 Durability Test11
7.9 Vibration resistance test11
7.10 Shock and collision testing11
7.11 Anti-interference performance test12
7.12 Cleanliness test12
7.13 Functional Testing12
7.14 Other test requirements13
8 Inspection Rules13
8.1 Inspection categories13
8.2 Factory Inspection13
8.3 Type inspection14
8.4 Decision Rules15
9 Labeling, packaging, transportation and storage15
9.1 Identification15
9.2 Packaging15
9.3 Transportation and storage16

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Wind Power Generation (SAC/TC50).

This document was drafted by: Yunda Energy Technology Group Co., Ltd., Shanghai Sanksais Hydraulics Co., Ltd., Mingyang Smart Energy Yuan Group Co., Ltd., Qingdao Pangu Intelligent Manufacturing Co., Ltd., Harvey Hydraulic Technology (Shanghai) Co., Ltd., CRRC Zhuzhou Electric Machinery Co., Ltd.

Wind Power Division of China Railway Research Institute Co., Ltd., Shenzhen Kesten Hydraulic Equipment Co., Ltd., Beijing Jianheng Certification Center Co., Ltd., CRRC Shandong Wind Power Co., Ltd., Hunan Xinglan Wind Power Co., Ltd., Guodian United Power Technology Co., Ltd., China Quality Certification Center Co., Ltd., Sinovel Wind Technology (Group) Co., Ltd., CSSC Offshore Wind Power Co., Ltd., and Shanghai Electric Wind Power Group Co., Ltd.

The main drafters of this document are: Zhao Haiyan, Luo Yongshui, Wang Xiaowei, Zhuang Jianyu, Song Zhao, Yang Zhenhua, Li Yong, Ouyang Hua, Wang Qian, Li Peng, Xiao Wang, Liu Ming, Yuan Yize, Li Jianqiao, Guang Lin, Ding Jianjun, Zhang Kai, and Cheng Yuan.

Wind power generation system Wind turbine hydraulic system

1 Scope

This document specifies the technical requirements, performance requirements, test methods, inspection rules, as well as labeling, packaging, Transportation and storage requirements, etc.

Note. The hydraulic system of wind turbine generator set is mainly used to provide power for various hydraulic devices including hydraulic brake, hydraulic wind wheel lock pin, hydraulic pitch control, etc. Source of power.

This document applies to the design, selection, manufacturing, assembly and maintenance of hydraulic systems for wind turbines.

2 Normative references

GB/T 191

GB/T 699

GB/T 755

GB/T 985.1

GB/T 1032

GB/T 1591

GB/T 2423.27

GB/T 2900.53

GB/T 3191

GB/T 3766

GB/T 4208

GB/T 8013.1

GB/T 8163

GB/T 9969

GB/T 11287

GB/T 12706.2

GB/T 13306

GB/T 13384

GB/T 14039

GB/T 14537

GB/T 15114

GB/T 17446

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 755 · GB/T 985.1 · GB/T 2423.27 · GB/T 2900.53 · GB/T 3766 · GB/T 11287 · GB/T 12706.2 · GB/T 14039 · GB/T 14537 · GB/T 17446

Editions of GB/T 45854

Edition	Title	Revision	Status
GB/T 45854-2025	Wind energy generation systems - Hydraulic system of wind turbines	current edition	Current

This page sells the current edition, GB/T 45854-2025. Earlier editions are listed for reference only.

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