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Inspection methods for active magnetic bearing stators
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Basic data
| Standard ID | GB/T 47117-2026 (GB/T47117-2026) |
| Description (Translated English) | Inspection methods for active magnetic bearing stators |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K65 |
| Classification of International Standard | 29.100.99 |
| Date of Issue | 2026-01-28 |
| Date of Implementation | 2026-08-01 |
GB/T 47117-2026: Inspection methods for active magnetic bearing stators
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.100.99
CCSK65
National Standards of the People's Republic of China
Active magnetic levitation bearing stator testing method
Published on 2026-01-28
Implemented on August 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Testing Requirements 3.
4.1 General Requirements 3
4.2 Environmental Requirements 3
4.3 Requirements for Measuring Instruments 3
4.4 Uncertainty Requirements 4
5.Stator geometric parameter detection of active magnetic levitation bearings.
5.1 Inspection of Dimensions and Geometric Tolerances of Stator Core Laminations for Radial Active Magnetic Suspension Bearings
5.2 Inspection of stator dimensions and geometric tolerances for radial active magnetic levitation bearings 6
5.3 Inspection of stator dimensions and geometric tolerances of axial active magnetic levitation bearings 13
6.Testing of stator electrical parameters of active magnetic levitation bearing 15
6.1 Measurement of insulation resistance between excitation winding and stator core 15
6.2 Measurement of inter-turn insulation of excitation winding of active magnetic levitation bearing 16
6.3 Measurement of excitation winding inductance and DC resistance 17
6.4 Measurement of Stator Magnetic Induction and Magnetic Polarity 18
6.5 Measurement of maximum electromagnetic force of active magnetic levitation bearing 19
Reference 23
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the National Working Group on Standardization of Maglev Power Technology (SAC/SWG28).
This document was prepared by the National Working Group on Standardization of Maglev Power Technology (SAC/SWG28) and the National Working Group on Standardization of Sliding Bearings.
It is jointly managed by the Technical Committee (SAC/TC236).
This document was drafted by. Shandong Maglev Industry Technology Research Institute Co., Ltd., Wuhan University of Technology, and Shandong Tianrui Heavy Industry Co., Ltd.
CRRC Zhuzhou Electric Co., Ltd., Shandong Huadong Fan Co., Ltd., Shandong Ruifanghong Low Carbon Technology Co., Ltd., and Wolong Electric Drive Group Co., Ltd.
Limited Liability Company, Beijing University of Aeronautics and Astronautics, Qingdao Haier Air Conditioning Electronics Co., Ltd., Suzhou Suci Intelligent Technology Co., Ltd., Nanjing Huichuan Technology
Technology Co., Ltd., Hunan Lingxiang Maglev Technology Co., Ltd., Zhejiang University, Shandong Jianzhu University, Tianrui Maglev Intelligent Manufacturing (Shandong) Co., Ltd.
The company, Hangzhou Kuntei Maglev Technology Co., Ltd., Weifang Vocational College, and Shanghai Industrial Environment & Water Co., Ltd.
The main drafters of this document are. Li Yongsheng, Hu Yefa, He Xiaohong, Zhou Liang, Chen Licheng, Wang Weixiang, Zhang Jieyu, Zhang Haigang, and Zheng Yanwen.
Zheng Shiqiang, Zhang Jie, Yin Chengke, Pang Gucai, Zhou Wenwu, Zhu Xinming, Zhu Changsheng, Zhang Hui, Li Zhiyu, Ma Xin, Shi Changyu, Wang Yue, Gu Chao, Zhang Yin
Xie Yuju, Du Hongxiang, Suo Wei, Liu Maohua, Yuan Peiyan, Zhu Ruifu, Chen Chengjun.
Active magnetic levitation bearing stator testing method
1 Scope
This document specifies the testing requirements and methods for the geometric and electrical parameters of the stator of an active magnetic levitation bearing, and describes the radial and axial main...
The measurement steps and data processing methods for the dimensions and tolerances (such as inner diameter, outer diameter, coaxiality, cylindricity, etc.) of the stator of a moving magnetic levitation bearing are given.
Measurement principles and operating procedures for electrical parameters (including insulation resistance, inter-turn insulation, winding inductance/resistance, magnetic induction intensity, etc.).
This document applies to the testing of stators in active magnetic levitation bearings. The same procedure applies to stators in hybrid magnetic levitation bearings.
This document is not applicable to the dynamic performance testing of active magnetic levitation bearing stators.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 1957 Technical Requirements for Smooth Limit Gauges
GB/T 1958-2017 Product Geometric Specification (GPS) - Geometric Tolerance Inspection and Verification
GB/T 2900.60 Electrical Engineering Terminology. Electromagnetism
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
GB/T 20160-2006 Insulation Resistance Test of Rotating Electrical Machines
GB/T 22717-2008 Test Specification for Inter-turn Insulation of Pole Coils and Field Windings of Electric Motors
GB/T 22719.1-2008 Inter-turn insulation of randomly embedded windings of AC low-voltage motors – Part 1.Test methods
GB/T 24633.2-2024 Product Geometric Specification (GPS) - Cylindricity Part 2.Standard Operation Set
GB/T 24762 Product Geometric Specification (GPS) - Acceptance Inspection and Re-inspection of Image Measuring Instruments
GB/T 46078 Terminology for Magnetic Levitation Power Technology
JB/T 7557-2024 Product Geometric Specification (GPS) - Coaxiality and Concentricity Testing
SJ/T 10297-2023 General Specification for LCR Measuring Instruments
YB/T 4292-2012 Test Methods for Geometric Properties of Electrical Steel Strips (Sheets)
3 Terms and Definitions
The terms and definitions defined in GB/T 2900.60 and GB/T 46078, as well as the following terms and definitions, apply to this document.
3.1
In a radial active magnetic levitation bearing, the part that provides radial levitation support for the rotor and has no relative movement with the bearing housing during operation.
Note. The stator of a radial active magnetic levitation bearing consists of a stator core and excitation windings, etc. A basic structure of a radial active magnetic levitation bearing stator is shown in Figure 1.
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