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GBZ22720.2-2013 English PDF

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GBZ22720.2-2013: Rotating electrical machines -- Qualification and acceptance tests for partial discharge resistant electrical insulation systems (Type Ⅱ) used in rotating electrical machines fed from voltage converters
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GB/Z 22720.2-2013English959 Add to Cart 3 days [Need to translate] Rotating electrical machines -- Qualification and acceptance tests for partial discharge resistant electrical insulation systems (Type Ⅱ) used in rotating electrical machines fed from voltage converters Obsolete GB/Z 22720.2-2013

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Standard similar to GBZ22720.2-2013

GB/T 21707   GB/T 22720.1   GB/T 20835   GB/T 22720.2   GB/T 22715   GB/T 22717   

Basic data

Standard ID GB/Z 22720.2-2013 (GB/Z22720.2-2013)
Description (Translated English) Rotating electrical machines -- Qualification and acceptance tests for partial discharge resistant electrical insulation systems (Type ��) used in rotating electrical machines fed from voltage converters
Sector / Industry National Standard
Classification of Chinese Standard K20
Classification of International Standard 29.160.01
Word Count Estimation 24,282
Quoted Standard IEC 60034-18-1; IEC 60034-18-32; IEC/TS 60034-18-41; IEC 60216-3; IEC/TS 61251; IEC 61800-4; IEC 62068-1; IEC 62539
Adopted Standard IEC/TS 60034-18-42-2008, IDT
Regulation (derived from) National Standards Bulletin No. 25 of 2013
Issuing agency(ies) Ministry of Health of the People's Republic of China
Summary This standard specifies the repeated impact by generating a voltage pulse width modulation (PWM) inverter power supply and support a single or multi-phase AC motor stator partial discharge during operation/rotor winding insulation structure of the evaluat

GBZ22720.2-2013: Rotating electrical machines -- Qualification and acceptance tests for partial discharge resistant electrical insulation systems (Type Ⅱ) used in rotating electrical machines fed from voltage converters



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Rotating electrical machines. Qualification and acceptance tests for partial discharge resistant electrical insulation systems (Type II) used in rotating electrical machines fed from voltage converters ICS 29.160.01 K20 People's Republic of China national standardization of technical guidance documents Rotating motor voltage type inverter powered Rotating electrical resistance to partial discharge electrical insulation Structure (type Ⅱ) identification and approval test dischargeresistantelectricalinsulationsystems (TypeⅡ) usedinrotating (IEC /T S60034-18-42.2008, IDT) 2013-12-17 released 2014-05-10 Implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 voltage generated by the operation of the inverter 4 5 Ⅱ type insulation structure 6 6 Inverter-powered motor with type Ⅱ insulation stress factor 7 7 Identification and accreditation test 7 8 turn to identify the insulation 8 9 pairs of insulation structure identification 10 10 Stress Control and Prevention of Corona Structure 12 11 Preparation of test samples 12 12 Identification Test Procedure 13 13 Qualification test 14 14 Type Ⅱ Insulation Test (Type Test) 15 15 Analysis, reporting and grading 15 Appendix A (informative) 16 Appendix B (informative) 17 Appendix C (informative) 19 Figure 1 impact voltage waveform parameters 2 Figure 2 3-phase inverter power supply phase voltage between the motor 3 Fig.3 Sudden change of voltage (Uj) at the motor end related to the inverter power supply 4 Figure 4 2-level rise time in different shocks The maximum motor voltage increases as a function of the cable length by 5 Figure 5 Design Example 6 Figure 6 Turn-to-turn insulation and main insulation life curve 9 Figure 7 Type Ⅱ main insulation structure life curve example 11 Figure 8 flat wire conductor inter-turn insulation test sample structure example 13 Figure A.1 shows an example of a simple inverter voltage analog circuit Figure A.2 Typical waveform generated by an air gap discharge oscillator Figure B.1 Schematic diagram of the relative voltage of the 3-level inverter power supply motor side Table 1 inverter power supply voltage characteristics of different parts of Ⅱ type insulation structure accelerated aging 7 Table B.1 3-level frequency converter 1kHz shock generated by the impact of aging and 50Hz frequency of aging corresponding to a variety of Electric aging coefficient (n) 18

Foreword

GB 22720 is divided into two parts. --- Voltage-frequency inverter-powered rotary motor type Ⅰ electrical insulation structure identification and type testing; --- Voltage-frequency inverter-powered rotating electrical resistance partial discharge electrical insulation structure (Ⅱ type) identification and approval test. This section GB 22720 Part 2. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with IEC /T S60034-18-42.2008 "rotating motor voltage-fed inverter powered rotary Machine resistance to partial discharge electrical insulation structure (Ⅱ type) identification and approval test. " Our standard of conformity with the international standards normative references in this section is as follows. --- GB/T 11026.3-2006 Electrical insulation materials heat resistance - Part 3. Calculation of heat resistance characteristics of the parameters (IEC 60216-3.2002, IDT) --- GB/T 12668.4-2006 speed control electrical transmission system Part 4. General requirements AC voltage 1000V above But Regulation of electrical variable speed drive systems not exceeding 35 kV (IEC 61800-4.2002, IDT) --- GB/T 17948-2003 General functional assessment of the insulation structure of rotating electrical machines (IEC 60034-18-1.1992, IDT) --- GB/T 17948.4-2006 Functional evaluation of the insulation structure of rotating electrical machines Molding winding test procedures 50MVA, 15kV And the following electrical insulation structural electrical rating (IEC /T S60034-18-32.1995, IDT) --- GB/T 22566.1-2008 electrical insulation system electrical stress generated by repeated pulses - Part 1. Assessment of electrical aging through Method (IEC 62068-1.2003, IDT) --- GB/T 22720.1-2008 Rotating motor voltage type inverter-powered rotary motor (type Ⅰ) electrical insulation structure Identification and type testing (IEC 60034-18-41.2006, IDT) This part is proposed by China Electrical Equipment Industry Association. This part of the National Standardization Technical Committee rotating electrical (SAC/TC26) centralized. This section is responsible for the drafting unit.Shanghai Electric Apparatus Research Institute, Shanghai Electrical Equipment Testing Institute, Wujiang Taihu Insulation Materials Co., Ltd., Zhejiang Jinlong Electric Co., Ltd., Shandong Huali Electric Group Co., Ltd., Suzhou Jufeng Electrical Insulation Systems Co., Ltd., Shandong Qilu Electric Manufacturing Co., Ltd., Xiangtan Electric Co., Ltd., Nanyang Explosion Group Co., Ltd., Dalian Tianyuan Electric Co., Ltd. Company, Boshan Special-type Motor Co., Ltd., Hebei Electric Co., Ltd., Weihai Tai Fusima Electric Co., Co., Ltd., Dalian Nisshin Motor Co., Ltd., China CNR Yongji New Speed Motor Electric Co., Ltd., Toshiba Dalian Co., Ltd., Guodian United Power Technology (Yixing) Co., Ltd., North China Electric Power Research Institute Co., Ltd., Jiangsu Chase Electrical Co., Ltd., Shanghai Nanyang Electric Co., Ltd., Shanghai Shanghai Development Instrument Co., Ltd., Siemens (China) Co., Ltd., Shanghai ABB Motor Co., Ltd., smoke Taimin Shida Special Paper Co., Ltd. This section participates in the drafting unit. Jiangsu Dazhong Electric Co., Ltd., DuPont (China) Group Co., Ltd., Shandong Power for a long time special motor Co., Ltd., Zhejiang Xizi Fawer Motor Co., Ltd., Suzhou Jiangnan Creative Electromechanical Technology Co., Ltd., Kaifeng Motor Manufacturing Co., Ltd. Company, Shandong Vosges Motor Co., Ltd., Hefei Hengda Jianghai Pump Co., Ltd., Fujian Fuan Min East Asia Southern Motor Co., Ltd., Tellhow Shenyang Motor Co., Ltd., Vanke (Nantong) Motor Manufacturing Co., Ltd., Zhejiang Special Motor Co., Ltd. The main drafters of this section. Zhang Shengde, Zhao Chao, Li Jinliang, Huang Huijie, Guanzhao Jie, Zhang Chunqi, Ye Ye, Wang Qingdong, Xia Yu, Zhang Chuanlin, Wang Fang-ning, Chen Xiangen, Dong Xianting, Li Hong, Sun Baoguo, Yang Jie, Wang Jinsong, Zheng Qirong, Zhou Jubao, Xu Baodi, Sun Baoqi, Liu Zhisheng, Wang Dianxin.

Introduction

"Voltage type inverter-powered rotary motor insulation structure" consists of two parts, the insulation structure is divided into two types. Ⅰ and Ⅱ type. Type I, In its operating life and the provisions of the conditions do not withstand partial discharge; Ⅱ type, throughout the operating life of any part of the insulation structure bearing By partial discharge. For type I and type II insulation, the power supply system integrator should inform the motor manufacturer of the motor that appears during operation Voltage, then the motor manufacturer should decide to apply to identify the severity of the insulation structure test, the severity of the impact of the rise time, the peak - peak Voltage and the type II insulation in the case of the impact of repetition rate as the basis. 0.1 IEC /T S60034-18-41 IEC /T S60034-18-41 discusses Type I insulation structure, Type I insulation structure is usually used for rated voltage 700V below, with Scatter Winding stator rotating motor. This section gives the necessary normative references, terms, and the effects of drive operation. Indeed After assessing the technical basis of the procedure, a conceptual approach is described. 0.2 IEC /T S60034-18-42 This section describes the identification and approval tests for the electrical insulation of Type II rotating electrical machines. Type Ⅱ insulation structure is usually used for rated voltage 700V and above and more emphasis on the rotating motor with a molded winding coil. Identification procedures are completely different from the type Ⅰ insulation structure, procedures include Insulation samples under accelerated conditions destructive aging, manufacturers need insulation structure life curve, the life curve can be provided in the inverter for Estimated life expectancy under electrical and operating conditions. Identification of any stress gradient structure is very important, the test stress gradient structure in the repeated impact of the bar Under the piece. Insulation structures are eligible for use if proven to provide a reliable life under the proper aging conditions. Recognized Test is the use of type Ⅱ insulation structure of the coil for electrical aging test. This part of the understanding should be provided in conjunction with IEC /T S60034-18-41, IEC /T S60034-18-41 inverter power supply/motor system technical background. Inverter power supply motor winding insulation structure and inverter technology has developed rapidly, at the same time, the insulation structure of the best test methods are still studying Therefore, it is expected that these two parts will be revised in the next few years. Rotating motor voltage type inverter powered Rotating electrical resistance to partial discharge electrical insulation Structure (type Ⅱ) identification and approval test

1 Scope

GB 22720 provisions of this part of the pulse voltage generated by repetitive pulse width modulation (PWM) inverter power supply and withstand during operation Evaluation criteria for stator/rotor winding insulation of partially discharged single phase or multiphase AC motors. This section applies to voltage-type inverter power supply typical sample identification and approval test. This section does not apply to. --- Only when starting the use of the inverter rotating motor; --- traction with electrical equipment and structure. Note Although this section refers to voltage-driven inverters only, there are many other types of inverters that generate repetitive inrush voltages. For these inverters Supply motor, if necessary, can be tested in a similar way.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. IEC 60034-18-1 Rotor electrical insulating structures Functional Assessment (Rotatingelectrmachines-Functional evaluation of systemsulations-Part 18-1. General guidelines IEC 60034-18-32 Rotating electrical insulation functional structure evaluation Test method for molded windings 50MVA, 15kV and below Electrical Insulation Structural Electrical Rating (Rotatingelectrmachines-Functionalevaluationofinsulationsystems-Part 18-32. Test Procures for form-wound wounds-Electric evaluation of in systems systemsusedin machinesuptoandincluding50MVAand15kV) IEC /T S60034-18-41 Rotary Motor Voltage-Frequency Inverter-Driven Electrical Insulation Structure (Type I) Identification and Type Type test (Rotatingelectrmachines-Part 18-41.QualificationandtypetestsforTypeIelectrical insulationsystemsusedinrotatingelectricalmachineswhenfedfromvoltageconverters) IEC 60216-3 Electrical insulating materials - Heat resistance - Part 3. Procedures for calculating heat resistance characteristics parameters (Electricalinsulating materials-Thermalenduranceproperties-Part 3.Instructionsforcalculatingthermalendurance characteristics IEC /T S61251 Electrical Insulation Materials AC voltage durability General rules (Electricalinsulatingmaterials- ACvoltageenduranceevaluation-Introduction) IEC 61800-4 Adjustable speed electrical power drive systems - Part 4. General requirements AC voltage above 1000V but not exceeding 35kV Adjustablespeedelectricalpowerdrivesystems-Part 4. Generalrequirements-Ratingspecificationsfora.c.powerdrivesystemsabove1000Va.c.andnotex- ceeding35kV) IEC 62068-1 Electrical insulation systems - Electrical stresses caused by repetitive pulses - Part 1. General method for assessment of electrical aging (Elec- tricalinsulatingsystems-Electricalstressesproducedbyrepetitiveimpulses-Part 1.Generalmethod ofevaluationofelectricalendurance)

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