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GB/T 12974.1-2023: General specification for a. c. lift motor - Part 1: Three-phase asynchronous motor
Status: Valid GB/T 12974.1: Evolution and historical versions
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| GB/T 12974.1-2023 | English | 269 |
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General specification for a. c. lift motor - Part 1: Three-phase asynchronous motor
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GB/T 12974.1-2023
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| GB/T 12974-2012 | English | 559 |
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General specification for a.c. lift motor
| Obsolete |
GB/T 12974-2012
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| GB/T 12974-1991 | English | 319 |
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General specification for a. c. lift motors
| Obsolete |
GB/T 12974-1991
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PDF similar to GB/T 12974.1-2023
Basic data | Standard ID | GB/T 12974.1-2023 (GB/T12974.1-2023) | | Description (Translated English) | General specification for a. c. lift motor - Part 1: Three-phase asynchronous motor | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K22 | | Classification of International Standard | 29.160.30 | | Word Count Estimation | 14,177 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 12974-2012 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 12974.1-2023: General specification for a. c. lift motor - Part 1: Three-phase asynchronous motor
---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 29.160.30
CCSK22
National Standards of People's Republic of China
Replace GB/T 12974-2012
General technical conditions for AC elevator motors
Part 1.Three-phase asynchronous motor
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
Introduction II
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 1
4 Type, basic parameters and dimensions 1
5 General requirements 3
6 Technical requirements 4
7 Test method 7
8 Inspection rules 8
9 Logo, packaging and warranty period 9
Table 1 Dimensions and tolerances of shaft extension keys 2
Table 2 Radial circular runout tolerance 2
Table 3 Radial circular runout and end face circular runout tolerance 3
Table 4 Symmetry tolerance 3
Table 5 Guaranteed value of efficiency 4
Table 6 Tolerance of guaranteed electrical performance values of motors5
Table 7 Interval time after power outage 5
Table 8 Vibration intensity limits expressed in terms of displacement, velocity and acceleration for different axis center heights H (mm) 6
Table 9 No-load maximum A-weighted sound power level value LWA (dB) 6
Table 10 Power-on time and shutdown time of each cycle under different load duration rates 7
Table 11 Inspection items 8
Table 12 Outgoing terminal mark 9
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.
This document is Part 1 of GB/T 12974 "General Technical Conditions for AC Elevator Motors". GB/T 12974 has been released with
Lower part.
---Part 1.Three-phase asynchronous motor;
---Part 2.Permanent magnet synchronous motor.
This document replaces GB/T 12974-2012 "General Technical Conditions for AC Elevator Motors". Compared with GB/T 12974-2012, except
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
---Deleted the permanent magnet synchronous motor product content (see 3.6, 4.4, 5.4, 6.3 of the.2012 edition);
---The expression of motor voltage and frequency requirements has been modified. The deviation of voltage and frequency from the rated value is in accordance with GB/T 755-2019
stipulations, no longer listed in detail (see 5.2, 4.3.1 of the.2012 version);
---Added efficiency requirements for single-speed asynchronous motors, in line with the minimum energy efficiency level regulations of GB 18613-2020 (see 6.1);
---Modified the expression of electrical performance guaranteed value tolerance (see 6.6, 4.3.2, 4.3.3, 4.3.4 of the.2012 edition);
---Added motor overspeed test (see 6.7);
--- Added provisions for the deviation of the DC resistance of any one phase of the three-phase stator winding in the actual cold state from the three-phase average value (see
6.18);
---Modified the thermal test requirements for electric motors (see 7.8, 5.3.4 of the.2012 edition);
---Modified the expression of motor inspection items (see 8.1, 5.3 of the.2012 edition);
---Modify the expression of the outlet terminal mark of the motor stator winding (see 9.1.3, 6.4 of the.2012 edition).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Rotating Electrical Machines Standardization Technical Committee (SAC/TC26).
This document was drafted by. Shanghai Motor System Energy Saving Engineering Technology Research Center Co., Ltd., Alda Electric Co., Ltd., Changzhou Jinkang
Seiko Machinery Co., Ltd., Shanghai Dianke Motor Technology Co., Ltd., Jiangsu Special Equipment Safety Supervision and Inspection Institute, Jiamusi Electric
Machinery Co., Ltd., Anhui Wannan Electric Co., Ltd., and Suzhou Tongrun Drive Equipment Co., Ltd.
The main drafters of this document. Yao Binglei, Wu Yanhong, Gao Shuyu, Chen Yerong, Xu Chenxu, Zhong Renkang, Qiu Yongjie, Wang Honghu, Zhang Xu.
The previous versions of this document and the documents it replaces are as follows.
---First published as GB/T 12974-1991 in.1991, first revised in.2012;
---This is the second revision, adjusted to Part 1 of GB/T 12974.
Introduction
With the current rapid development of social economy, elevators have become an indispensable vertical means of transportation in people's lives. Elevator technology is updated day by day
With each passing month, the development speed is getting faster and faster. The elevator traction motor has the characteristics of frequent starting and braking, small starting current, and low operating noise.
There are two types of elevator motors. three-phase asynchronous motors and permanent magnet synchronous motors, which are the power source for elevator operation. GB/T 12974 aims to provide
Provides general technical conditions for AC elevator motors, standardizes and guides the selection, design, manufacturing, promotion and application of AC elevator motors. According to product
Due to different excitation methods, GB/T 12974 "General Technical Conditions for AC Elevator Motors" consists of two parts.
---Part 1.Three-phase asynchronous motor. The purpose is to determine the technical requirements for three-phase asynchronous motors for elevators.
---Part 2.Permanent magnet synchronous motor. The purpose is to determine the technical requirements of permanent magnet synchronous motors for elevators.
General technical conditions for AC elevator motors
Part 1.Three-phase asynchronous motor
1 Scope
This document specifies the type, basic parameters and dimensions, general requirements, technical requirements, inspection rules, and standards of three-phase asynchronous motors for elevators.
logo, packaging and shelf life requirements, and describes the corresponding test methods.
This document is applicable to the manufacturing, design and inspection of three-phase asynchronous motors for various types of passenger elevators, freight elevators, medical elevators and home elevators.
Testing, etc., the manufacturing, design, testing, etc. of various series of motors derived from this series of motors shall be carried out with reference to this.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 191-2008 Packaging, storage and transportation pictorial markings
GB/T 755-2019 Ratings and performance of rotating electrical machines
GB/T 997-2022 Classification of structural types, installation types and junction box locations of rotating electrical machines (IM code)
GB/T 1032-2012 Three-phase asynchronous motor test methods
GB/T 1971-2021 Rotating motor wire end markings and direction of rotation
GB/T 1993-1993 Cooling methods for rotating electrical machines
GB/T 4772.1-1999 Dimensions and output power levels of rotating electrical machines Part 1.Frame number 56~400 and flange number 55~1080
GB/T 4942-2021 Protection level (IP code) of the overall structure of rotating electrical machines Classification
GB/T 10068-2020 Measurement, evaluation and limits of mechanical vibration of motors with shaft center height 56mm and above
GB/T 10069.1-2006 Determination methods and limits of noise of rotating electrical machines Part 1.Determination methods of noise of rotating electrical machines
GB/T 12665-2017 Damp heat test requirements for motors used under general environmental conditions
GB/T 14711 General safety requirements for small and medium-sized rotating electrical machines
GB/T 22719.1-2008 Interturn insulation of scattered embedded windings of AC low-voltage motors - Part 1.Test methods
GB/T 22719.2-2008 Interturn insulation of scattered embedded windings for AC low-voltage motors - Part 2.Test limits
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 Type, basic parameters and dimensions
4.1 Type
4.1.1 The shell protection level of the three-phase asynchronous motor for elevators (hereinafter referred to as the motor) is in accordance with the provisions of GB/T 4942-2021.
IP00, IP20, IP21 or IP41.
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