GB/T 2820.8-2022 in English
VALIDReciprocating internal combustion engine driven alternating current generating sets—Part 8: Requirements and tests for low-power generating sets
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 2820.8-2022往复式内燃机驱动的交流发电机组 第8部分：对小功率发电机组的要求和试验》由TC329（全国移动电站标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
1. Standard Overview
GB/T2820.8-2022/ISO85288:2016 is about the 8th part of the AC generator set driven by reciprocating internal combustion engines, mainly for the requirements and tests of small power generator sets. The standard was officially implemented on July 1, 2023, replacing the old version GB/T2820.8-2002.
2. Background of Standard Formulation
With the widespread application of small power generator sets in industrial, entertainment and civil fields, higher requirements are put forward for their performance and technical requirements. The revision of this standard aims to:
- Unify industry technical specifications
- Improve product quality and safety
- Adapt to the trend of international standardization
3. Analysis of Technological Evolution
Compared with the old version, the main technical changes of this standard include:
| Contents of the old version | Adjustments of the new version |
|---|---|
| The definition of low power is unclear | Rated power and maximum power are clearly defined |
| Mechanical and electrical design requirements are not covered | New Chapter 6 is added to specify mechanical and electrical design requirements in detail |
| Lack of radio interference suppression requirements | Increase of radio interference limits and suppression measures |
4. Interpretation of core clauses
The core requirements in the standard are mainly concentrated on:
4.1 Definition and scope
Small power generator sets are defined as generator sets with a rated power not exceeding 10kW/50Hz or 12kW/60Hz, and are applicable to:
- Land and marine scenarios
- Single-phase or multi-phase AC output
- Voltage not exceeding 500V
4.2 Safety and test requirements
The following key requirements have been added to the standard:
- Overload protection: The operating time of the generator set under overload conditions should not exceed 5 minutes
- Temperature rise control: The temperature rise of the generator winding shall not exceed the S2 limit value specified in IEC60034-1:2017
- Radio interference: Meet the CISPR12 limit requirements
5. Implementation suggestions
To ensure the effective implementation of the standard, it is recommended to:
Case analysis: Transformation of a small-power generator set of a certain enterprise
After the release of the new version of the standard, a manufacturing enterprise comprehensively upgraded its existing small-power generator sets:
- Optimized the electrical connection design to meet the requirements of IEC60309
- Added radio interference suppression equipment
- Introduced an overload protection system
Through the transformation, the company's products passed the type test at one time, significantly improving its market competitiveness.
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