IEEE P841:2021 Edition
$30.33
IEEE Approved Draft Standard for Petroleum and Chemical Industry–Premium-Efficiency, Severe-Duty, Totally Enclosed Squirrel Cage Induction Motors–0.75-370 kW (1-500 hp)
| Published By | Publication Date | Number of Pages |
| IEEE | 2021 |
Revision Standard – Active – Draft.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std 841™-2021 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 10 | Introduction |
| 11 | Contents |
| 13 | 1. Overview 1.1 Scope 1.2 Purpose 1.3 Word usage |
| 14 | 2. Normative references |
| 15 | 3. Definitions, acronyms, and abbreviations 3.1 Definitions 3.2 Acronyms and abbreviations 4. Service conditions 4.1 Usual service conditions |
| 16 | 4.2 Unusual service conditions 5. Ratings 5.1 Basis of rating |
| 17 | 5.2 Frame assignments 5.3 Voltage and frequency ratings 5.4 Synchronous speed ratings 5.5 Enclosures 6. Electrical performance 6.1 General 6.2 Motor designs and starting characteristics 6.3 Power supply variations |
| 18 | 6.4 Insulation system and temperature rise |
| 19 | 7. Mechanical features 7.1 Bearings and lubrication |
| 20 | 7.2 Rotor and shaft |
| 21 | 7.3 Frames, endshields, and fan covers 7.4 Fans 7.5 Main terminal boxes and terminal leads |
| 22 | 7.6 Drains |
| 23 | 7.7 Hardware 7.8 Airborne sound 7.9 Vibration |
| 24 | 8. Corrosion-resistant treatment 8.1 Frame paint 8.2 Assembly 8.3 Exposed internal stator, rotor, and shaft surfaces 8.4 Miscellaneous 9. Efficiency |
| 25 | 10. Tests 10.1 Test methods 10.2 Factory tests 10.3 Additional tests 10.4 Prototype tests |
| 26 | 10.5 Test information supplied with motor 11. Nameplate 11.1 Nameplate marking |
| 27 | 11.2 Nameplate material 12. Space heaters—requirements 13. Data exchange—user and manufacturer 14. Core technical features and allowable options for an “IEEE Std 841-2021” motor and options that exclude a motor from referencing the standard 14.1 Introduction |
| 28 | 14.2 Core technical features of an “IEEE Std 841-2021” motor 14.3 Allowable options for an “IEEE Std 841-2021” motor |
| 29 | 14.4 Allowable options for an “IEEE Std 841-2021 Features” motor |
| 30 | 14.5 Options that do not allow a motor to reference IEEE 841 in any way |
| 31 | Annex A (informative) Motor datasheet example |
| 32 | Annex B (informative) ASD motor applications and considerations B.1 Introduction B.2 ASD considerations for all applications |
| 33 | B.3 Uncommon adjustable speed drive (ASD) applications B.4 Practices frequently used to mitigate surface temperature concerns for ASD applications B.5 Practices used to mitigate sparking in ASD applications and improve motor reliability |
| 35 | Annex C (informative) Bibliography |
| 36 | Back cover |
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