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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
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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
IEEE P841
$30.33