IEEE 3002.7 2018:2019 Edition
$81.25
IEEE Recommended Practice for Conducting Motor-Starting Studies and Analysis of Industrial and Commercial Power Systems
| Published By | Publication Date | Number of Pages |
| IEEE | 2019 | 107 |
New IEEE Standard – Active. Activities related to motor-starting studies, including design considerations for new systems, analytical studies for existing systems, as well as operational and model-validation considerations for industrial and commercial power systems are described. Motor-starting analysis includes evaluation of motor-starting current and voltage drop. Accuracy of calculation results primarily relies on system modeling assumptions and methods used. The use of computer-aided analysis software, with a list of desirable capabilities recommended to conduct a modern motor-starting study, is emphasized. Examples of system data requirements and result-analysis techniques are presented. Benefits obtained from motor-starting studies are discussed, and various types of computer-aided motor-starting studies are examined. Data or information required for these studies, as well as the expected results of a motor-starting study effort, are also reviewed.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std 3002.7™-2018 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 7 | Participants |
| 9 | Introduction IEEE 3000 Standards Collection™ |
| 10 | Contents |
| 12 | 1. Overview 1.1 Scope 2. Normative reference |
| 13 | 3. Definitions |
| 16 | 4. Introduction 4.1 Overview 4.2 Motor fundamentals 4.3 Motor horsepower versus torque |
| 17 | 4.4 Starting torque and acceleration |
| 18 | 4.5 AC and DC machines |
| 19 | 4.6 AC machines |
| 23 | 4.7 DC machines |
| 27 | 5. Motor standards 5.1 Overview 5.2 Comparison between NEMA and IEC motor standards |
| 28 | 6. Analysis objectives 6.1 General purpose |
| 29 | 6.2 Criteria 6.3 Voltage dips |
| 32 | 6.4 Weak source generation |
| 33 | 7. Methodology and standards 7.1 Overview |
| 34 | 7.2 Overall approach 7.3 Mathematical relationships and hand calculations |
| 39 | 7.4 Generator reactance factors |
| 41 | 7.5 Simple voltage drop simulation |
| 43 | 7.6 Motor-acceleration time |
| 47 | 7.7 Computer-based calculations |
| 50 | 8. System simulation and modeling 8.1 Modeling of components in motor-starting studies |
| 52 | 8.2 Motor mechanical model |
| 56 | 8.3 Motor inertia |
| 57 | 8.4 Motor load model 8.5 Basic assumptions |
| 59 | 9. Motor-starting methods 9.1 Direct on-line (DOL) 9.2 Series impedance |
| 60 | 9.3 Shunt capacitor 9.4 Reactor/choke 9.5 Reactor–capacitor 9.6 Partial winding 9.7 Wye/delta (Y-∆) |
| 61 | 9.8 Captive transformer 9.9 Autotransformer |
| 62 | 9.10 Electronic soft-starters 9.11 Variable frequency drive/adjustable speed drive |
| 63 | 9.12 Voltage and frequency variation |
| 64 | 10. Required data 10.1 Overview 10.2 Basic information |
| 65 | 10.3 Motor starting |
| 68 | 11. Data collection and preparation 11.1 Overview 11.2 Equipment data from existing system |
| 69 | 11.3 Equipment data from new systems 11.4 Equipment test data 11.5 Field measurement 11.6 Utility short-circuit contribution |
| 70 | 11.7 Motor nameplate |
| 71 | 11.8 Typical data 12. Model and data validation 12.1 Overview 12.2 Parameters and model to be validated |
| 72 | 12.3 Data and model validation 13. Study scenarios 13.1 Overview 13.2 Types of motor-starting simulation |
| 84 | 13.3 Tolerances and adjustments 13.4 Starting load of accelerating motors |
| 85 | 13.5 Post-start load change |
| 86 | 13.6 Load transition by bus transfer 14. Results and reports 14.1 Overview 14.2 Motor-starting study results and report format |
| 89 | 14.3 Motor-starting plots and one-line diagram |
| 95 | 15. Features of analysis tools 15.1 Overview 15.2 Features required for most studies |
| 96 | 15.3 Additional features |
| 97 | 15.4 Automatic comparison of motor-starting results |
| 98 | 16. Illustration examples 16.1 Motor starting direct on-line versus motor starting with VFD |
| 99 | 16.2 Comparison of motor starting with common motor starters (voltage control, current limit, current control, torque control, etc.) |
| 101 | 16.3 Motor reacceleration |
| 103 | Annex A (informative) Bibliography |
| 106 | Annex B (normative) Comparison between NEMA and IEC motor standards |
| 107 | Back cover |
