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GB/T 41369-2022Quality evaluation of comprehensive performance of units operation of small hydropower stations (English PDF)

小型水电站机组运行综合性能质量评定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 9, 2022

Implementation date

October 1, 2022

Scope

GB/T 41369-2022 is the English-translated version of 小型水电站机组运行综合性能质量评定.

GB/T 41369-2022 sets how the overall operating performance of the units of a small hydropower station is assessed.

It fixes what the assessment covers, the requirements the unit has to meet and the methods by which each of them is judged - the output and efficiency, the vibration and the behaviour of the bearings, the governing and the electrical equipment.

It applies to hydro generating units from 0.5 MW to 25 MW with a runner diameter not greater than 3.3 m, and units from 0.1 MW to 0.5 MW may follow it for reference.

Plant owners, turbine makers and the engineers who overhaul a unit use it. Issued on 9 March 2022, it has applied since 1 October 2022.

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Document preview — GB/T 41369-2022

National Standard of the People's Republic of China

ICS: 27.140
Classification: P 59

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

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Assessment content and requirements
4.1 Basic requirements
4.2 Turbine Operational Performance Quality
4.3 Operational performance quality of hydro-generator
4.4 Operating performance quality of excitation system
4.5 Operational performance quality of speed control system
4.6 Operational performance quality of turbine inlet valve
4.7 Operational performance quality of other equipment
5 Comprehensive assessment
5.1 Basic conditions for assessment
5.2 Scoring principles and scoring methods
5.3 Assessment Conclusions
Appendix A (normative) Evaluation Item Scoring Method
Appendix B (Informative) Comprehensive Performance Quality Score Sheet

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 of Standardization Documents" drafted.

1 Scope

This document specifies the content, requirements and methods for the comprehensive performance quality assessment of the units used in small hydropower stations.

This document is applicable to hydro-generators whose unit power is between 0.5MW and 25MW and the diameter of the turbine runner is not greater than 3.3m.

Evaluation of the overall performance quality of the group operation. For units with a power between 0.1MW and 0.5MW, you can refer to the implementation.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 7894 Basic technical conditions of hydro-generators

GB/T 8564 Technical Specification for Installation of Hydrogenerator Sets

GB/T 9652.1 Technical conditions of turbine speed control system

GB/T 9652.2 Turbine Speed Governing System Test

GB/T 10585-1989 Basic technical requirements for the excitation system of small and medium-sized synchronous motors

GB/T 14478 Basic technical conditions for inlet valves of large and medium turbines

GB/T 15469.1 Cavitation Erosion Assessment of Turbines, Accumulator Pumps and Water Pumps - Part 1: Cavitation Erosion Assessment of Impact Turbines

GB/T 17189 Hydraulic machinery (turbine, accumulator pump and water pump turbine) vibration and pulsation field test procedures

GB/T 19184 Cavitation Erosion Assessment of Water Bucket Turbine

GB/T 20043 Field Acceptance Test Procedures for Hydraulic Performance of Turbine, Storage Pump and Pump Turbine

GB/T 21717 Specifications for Type Parameters and Performance of Small Hydro Turbines

GB/T 21718 Basic technical conditions for small turbines

GB/T 22140 Field Acceptance Test Procedures for Small Hydro Turbines

GB/T 27989 Basic technical conditions for small hydro-generators

GB/T 29403 Technical Guidelines for Sediment Wear of Impact Turbine

GB/T 50964 Technical Specifications for Operation and Maintenance of Small Hydropower Stations

JB/T 7072 Series Spectrum of Turbine Governor and Hydraulic Device SL229 Code for Automation Design of Small Hydroelectric Power Stations SL555 Field Efficiency Test Procedure for Small Hydropower Stations SL696 Basic technical conditions of water inlet valve for small turbines

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

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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 10585-1989 · GB/T 21717

Similar standards

GB/T 18482-2026|GB/T 28546-2026|GB/T 14478-2025|GB/T 22385-2025|GB/T 28572-2025|GB/T 45311-2025

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